CN103002383A - Wireless media source for communication with devices on data bus of vehicle - Google Patents

Abstract

A wireless audio source (102) integrated into a host bus (110) of a vehicle includes a transmitter module (100) for wirelessly transmitting signals received from a connected portable audio player (102) to a receiver module (106) connected to the host bus (110). The host bus (110) thereby enabling the audio content to be reproduced over the speakers (116 and 126). In one aspect, the user is able to control the volume and related functions of the audio content using the standard radio controls. In other aspects, a portable wireless transceiver is disclosed wherein an occupant of the vehicle can transmit and receive multimedia data to and from a wireless transceiver coupled to the host bus (110). Multimedia and other devices (130) connected to the host bus (110) can thereby send and receive signals to and from the portable wireless transceiver.

Description

Be used for data bus of vehicle on the wireless media source of devices communicating

The application divides an application, and the applying date of original application is on July 14th, 2006, and application number is 200680033315.X(PCT/US2006/027611), denomination of invention be " be used for data bus of vehicle on the wireless media source of devices communicating ".

Application is relevant

The application requires application in July 14 in 2005, attorney docket is the priority of the U.S. Provisional Application No.60/699100 of No.71162-020, and its title is " Portable Audio Device With A Wireless Connection To A Car Stereo "; Application on June 2nd, 2006, attorney docket is the priority of the U.S. Provisional Application No.60/803807 of No.71162-027, its title is " Wireless Audio Source Integrated into Data Bus of Automobile "; With on July 13rd, 2006 application, attorney docket is the priority of the novel application No.11/457302 of the U.S. utility of No.71162-050, and its title is " Wireless Media Source for Communication with Devices On Data Bus of Vehicle ".The content of all these applications is included in this for your guidance.

Technical field

The present invention relates to the wireless device that uses with vehicle, relate more specifically to can with data bus of vehicle on the wireless media source of devices communicating.

Background technology

In recent years, along with control and " facility " system and the feature of implementing large amount of complex in automobile, the Automobile Design personnel are in the challenge that faces increase with integrated all these system aspects of the mode that function, structure and stable operation are provided.For example, Hyundai Motor is equipped with and relates to the engine control function, brake, transmission control (transmission control), suspension characteristics (suspension feature), climate controlling, audio-frequency function, cellular technology, speech recognition, the electronic installation that burglary-resisting installation etc. are too much.

In many situations, these different sub-systems need interactive each other.For example, many engine management functions are to be mutually related, and must be electrically connected in some way.Multiple electronic control mechanism is arranged in automobile now.These controlling organization senses vehicle measuring amount, for example, engine speed/revolutions per minute (RPM), car speed, engine temperature etc., and based on these measuring amount judgements.Thereby then controlling organization can send multiple order and engine adjusted or the potential problem of control panel driver on instrument board to actuator.Transmit routinely between the multiple electronic control mechanism and reception information.For example, engine must be transferred to transmission mechanism with engine speed so that two sub-systems are interactive.

Along with the level of complexity of these automobiles continues to increase, the automaker is faced with the predicament of the increase that seamless integrated in-vehicle device and control system are provided.Only inciting somebody to action independently with standard circuit and connector, equipment connection arrives impracticable together.For example in the parts of modern security systems are integrated into together situation, by engaging circuit and coming the parts of integrated this type systematic to cause unacceptable complexity with connector, thermal losses causes surpassing acceptable power consumption in the line resistance, and the probability of failure or the technical problem that increase.The complexity of fault will be so that the skilled worker be difficult to location and solution problem within the rational time period.

In some new vehicle, provide the electronic sensor of the potential collision of sensing.Electronic sensor in these vehicles need to be connected with the suspension control system interface so that automotive suspension apparatus tightr when anticipating approaching collision (tighten up).Other security features, as air bag and recently the design safety belt may need to contain the transducer that is electrically coupled to one another and is electrically coupled to other equipment.Door lock, remote control equipment, skylight (moon roof) control, lamp, safety, chair control, heated seats, climate controlling, the integrated contingent claim of electronics window and they and plurality of devices is the additional examples of the complexity that increases of modern vehicle, especially along with new equipment, feature, and function progressively increases.

The necessity of exchanges data causes mode that the vehicular manufacturer seeks to improve with higher seamless degree and the mode of low complex degree more integration of equipments to be in the same place between the multiple subsystem of modern vehicle.These effort finally cause multiple bus standard to be used to be electrically connected equipment in the vehicle.In brief, standardized electric bus is designed join dependency equipment.In vehicle electronics, use bus to have multiple advantage, standardized and the organized agreement that for example comprises Continuity signal, lower power consumption, be used for guaranteeing the high priority action (as, the function that safety is relevant) have precedence over the lower priority action (as, multimedia function) stepped multiplexing (hierarchical multiplexing), utilize less Integration Bus wire vestige (integrated bus conductor trace) to reduce or eliminate expensive and high power consumption circuit and connector with being connected to connect to simplify, and other characteristics.

Different types of exemplary automobile bus is arranged.So far, at least 6 kinds of dissimilar employings or in the literature proposition.Category-A is the multiplexing wiring system (multiplexing wiring system) of using in automobile.Although traditional wiring can not all be eliminated, known technology in the transmission by being implemented in a plurality of signals on the same bus by a kind of in known several multiplexing schemes and the electronics of reception can significantly reduce the wiring in the category-A bus.Category-B be another based on multiplexing wiring system, this system is based between node, but not the concept of the transmission of data between autonomous device (for example, auto loud hailer can be related with node, this node have with bus system in the denominator of other nodes).The C class be another based on multiplexing wiring system, this system is by reducing wiring with the upper frequency the transmission of data.Discharging/ALCL Assembly Line Communication Link (emission/diagnostic bus) is another kind of bus, and it relates to the integrated of vehicular discharge equipment or diagnostic device.

Recently, the consumer is desirably in the vehicle kind and uses multimedia equipment or multimedia equipment is integrated into larger ability in the vehicle.The hope of integrated vehicle arrangement comprises the activity space of the multimedia equipment of the quantity that continues integrated increase.For example, in the automobile of the renewal of expecting, loud speaker not only can be connected to each wireless device, CD, tape player (cassette) and amplifier system, and can be connected to can be at the equipment of loud speaker transmission cellular phone signal, or be connected to digital audio-frequency player or DVD player on vehicle.For the vehicle that is equipped with up-to-date radio telephone convenience feature, when Inbound Calls was arranged, loud speaker may need quiet.

The mobile media bus is in particular the mobile media devices design, such as cell phone and gps system.Thereby the X-by-Wire bus be for realize electronic system add and be integrated into strengthen on the vehicle and replace before the term of bus type of the task of handling with mechanical system.(information of more vehicle bus types can referring to " Automotive buses " among the http://www.interfacebus.com/Design_Connector_Automotive.html).Mobile Multimedia Link ^TMIt is another standard of using with multimedia type equipment of developing.

A kind of bus schemes of using in vehicle of recent development is based on the light transmission between fibre circuit.The exploitation of MOST company

It is the standard that defines the multimedia point to point network.

Be designed to provide the car multimedia solution based on bus/network. The physical layer of standard is used plastic fiber. Bus can be with multiple topology tissue; The most significant is star-like, daisy chain (daisy-chain) type, or loop configurations.

Standard not only defines physical layer, and the application layer of definition osi model, network layer, and MAC layer. Use electrical to optical converter at transmission over networks multimedia optical signalling, also use optical-electrical converter to transmit and receive electric signal from connected different multimedia parts.

Further information and standard can MOST company's site ( Www.mostnet.de) on find.

The MOST standard is suitable for multiple multimedia equipment is combined on the bus.This kind equipment can comprise, for example, integrated cell phone, digital radio equipment, portable laptop computer, amplifier, the GPS navigation system, the CD recorder changer, loud speaker, equalizer, video player, etc.

Along with the vehicle sustainable development of adopting or use multimedia equipment, thus by provide flexibly and more cheaply mechanism multimedia equipment is coupled to together,

(such as, mobile multimedia link (MML)) advanced current techniques based on multimedia bus schemes with other.

The consumer is day by day satisfied and to be connected entertainment features be to use the connection portable audio device, as adopt the music player of MPEG1 audio compression the 3rd layer (MPEG1 layer 3), such as the mechanism of iPod or the similar player of Apple, music playing on the boombox of its vehicle.Thereby the consumer need to produce high-quality sound and use the solution of minimum external equipment to minimize the negative aesthetic effect related with the numerous and diverse wiring of vehicle interior.Another welcome entertainment features is to use different portable media devices, such as PC on knee, PDA, GPS equipment, game station etc., thus with vehicle in integrated other equipment interactive.

Broadcast source has been implemented or has been proposed in the literature from the several different methods of the audio frequency of portable audio player.In one approach, as the U.S. Patent Application Publication No. No.US2005/0049009A1 announcement of Yamamoto application, portable audio player is connected to " plug (plug) " equipment, and this equipment is assembled on the standard cigar lighter of vehicle in order to power to the plug reflector.The plug device processes is AM or the FM radiobeam of frequency in the frequency spectrum of automobile wireless electricity equipment from the signal of portable audio player and with wireless launcher with its forwarding.Radiobeam is received by the vehicle standard wireless aerial, and is to play by its loud speaker with the wireless device of vehicle from the music of portable audio player.In another approach, as disclosing among the U.S. Patent Publication No. No.US2003/0053378A1 of the people such as Lovin application, the portable set (such as cell phone or personal audio player) that comprises wireless transceiver transmits to the interior second transceiver of cylindrical equipment (cylindrical apparatus) (or from its reception signal).The signal that cylindrical device processes receives and on the FM radio-frequency spectrum with its forwarding.Cylindrical equipment is directly connected on the wireless device of vehicle and by specifying the wireless device on the FM frequency that audio frequency is provided by coaxial cable.

These equipment all have shortcoming.For example, the quality of audio frequency is significantly than the poor quality near CD of most of portable audio players.FM and AM frequency band all lack the dynamic range for the sound that reappears the higher quality related with portable music player.And traditional AM and FM frequency band are subject to the significantly impact of interference, and this interference is from the physical barrier that affects radio wave transmission with near other FM same frequency or this frequency and AM source.In brief, sound quality reduces.

In addition, these two kinds of methods all require to be directly connected to wireless device self, or by vehicle antenna (such as the patent of Yamamoto) or by coaxial input (such as the patent of Lovin).Therefore, for the vehicle that adopts the data/address bus connecting multimedia device, the method for prior art all can not be utilized other relevant devices that are connected to bus.For example, in the situation of the portable music player that uses art methods, player can not be accessed maybe can not be connected to any other equipment on the bus by interface, such as discrete equalizer, and audio frequency amplifier or the integrated audio register of playing later on for the recording musical confession.In cellular situation, phone can not be accessed separate microphone on the bus in order to make interface allow the driver facing to microphone talk, and therefore through cell phone sound is sent it back the caller.In addition, itself hard wire of disclosed equipment requirement is connected to wireless device in the Lovin patent, causes installing more complicated and more difficult.

Other art methods rely on wireless receiver are directly connected to wireless device, by auxiliary input device or by left and right sides stereo channel.These methods have same restriction, because they can not be connected by interface with any other equipment on the bus.

In addition, realize all-round (all-purpose) mechanism of ideal and the bus wireless interactive of any portable multimedia apparatus, and the feature on the parts of its connection increase bus and the very large flexibility of parts.At present, discrete portable media device can not be connected to any of most bus characteristics available on the multiple bus standard and function by interface.Therefore, the riding people of vehicle only can use the equipment that just is integrated into vehicle when making.

As a result, there is a need in the field to provide the equipment that produces high quality audio and can suitably be connected by interface with other multimedia equipments on the vehicle bus.Also need to provide the multiple discrete multimedia equipment that is not connected to bus, it can be interactive with other equipment that are connected to bus and be integrated in the vehicle.

Summary of the invention

The present invention includes transmitter module is used for from portable music player audio reception content, this content of wireless transmission is to the receiver module that is connected to host bus through suitable interface, wherein receiver module can communicate be connected the suitable equipment that interface is connected with host bus, comprises the loud speaker that high quality audio reappears.

The present invention further comprise being connected on the bus multiple multimedia equipment and with its first portable wireless transceiver device that is connected with interface, with the second Portable transceivers that is coupled to this bus, this bus is configured with the first portable wireless transceiver device passes through the interface mode wireless connections, carries out interaction so that the multiple portable media device of outside vehicle can be connected to the first portable radio machine and be configured with any suitable equipment that is connected to bus.

In one aspect, be used for the transmitting audio frequency content and comprise the wireless launcher module to the ANTENN AUDIO source of the receiver that is coupled to the host bus that is integrated in vehicle, it is configured with the output of portable audio player and is connected with interface, thereby receive the audio signal from portable audio player, and with predetermined wireless protocols wireless transmission audio signal, the audio signal of wherein launching by be coupled to interface that host bus interface is connected on wireless receiver receive, this interface is used for the transmitting audio frequency data to bus, and wherein said wireless receiver is configured to receive the audio signal of launching with predetermined wireless protocols, and restoring signal sound intermediate frequency data are in order to play at the loud speaker of vehicle.

In yet another aspect, the ANTENN AUDIO source that is integrated on the vehicle host bus comprises transmitter module, this transmitter module comprises receiving and more input jacks from the audio signal of portable audio player, be used for audio signal is converted to the circuit of the first form that is suitable for wireless transmission, antenna with the audio signal that formats with predetermined wireless protocols emission first, and the receiver module that is connected to host bus, this receiver module comprises for the antenna of the audio signal that receives the first format and is used for the audio signal of the first format is converted to the circuit of the second form, and its data transmission that is suitable for being suitable for sending with the second form in will the first format audio signal is to host bus.

In one aspect of the method, comprise for emission from the audio signal of the portable audio player wireless transmission apparatus to receiver module with the integrated ANTENN AUDIO source of vehicle host bus, with be used for the wireless receiving apparatus of audio signals to host bus, and the playing device that is used for reappearing in vehicle speakers audio content.

In a further aspect, the method for using the signal through the emission of the host bus of vehicle to reappear audio frequency in vehicle speakers, the method comprises: the audio content that receives from the portable audio player that is connected to transmitter module from the transmitter module wireless transmission; Audio content from transmitter module wireless receiving receiver module; The signal that bus interface emission by the vehicle host bus comprises audio content is to bus, and this signal is addressed to the node that is coupled to each interface of bus upper speaker; With reappear audio content by loud speaker.

Further, make portable media device can be connected to the wireless device that the equipment that is integrated in the host bus in the vehicle communicates and comprise: the first portable wireless transceiver device, it is configured to be connected with portable media device with wired connection; With the second wireless transceiver, it is coupled to interface on the host bus with wired connection, wherein the first portable wireless transceiver device receives the data from portable media device, and will comprise that with short range wireless protocol the data of device address are sent to the second wireless transceiver; And wherein the second wireless transceiver uses the short range wireless protocol receive data and through bus it is transmitted into equipment.

In another aspect of the present invention, the portable radio machine that is connected to the equipment of vehicle host bus for control line comprises portable remote control device, it comprises and is configured to transmit the data to the second wireless transceiver and from the first wireless transceiver of its receive data, this second wireless transceiver is coupled on the interface of host bus, wherein the second wireless transceiver is configured to the first signal from the first wireless transceiver wireless receiving is emitted to one or more equipment, and wherein the second wireless transceiver is configured to secondary signal to the first wireless transceiver that wireless transmission receives from least one equipment.

In another aspect of the present invention, the system that is used for carrying out with the equipment that is coupled to the vehicle host bus radio communication comprises: first transceiver device, its wireless transmission comprise the first signal of the first data and the secondary signal that wireless receiving comprises the second data; With the second transceiver device, the secondary signal that its wireless transmission comprises the second data to first transceiver device and wireless receiving comprises the first signal from the first data of first transceiver device; With the host bus interface device, its connection device is to host bus; And communication apparatus, its 3rd signal that comprises the 3rd data through host bus emission is to the second transceiver device, and receives the 4th signal that comprises the 4th data from the second transceiver device through host bus.

Be appreciated that in the following detailed description those skilled in the art are with easy to understand other embodiment of the present invention, this explanation only illustrates and describes various embodiments of the present invention by way of example.Can recognize that the present invention can realize with other different embodiment, and some details wherein can revise with multiple other forms, and not depart from spirit of the present invention and category.Therefore, accompanying drawing and specific descriptions are regarded as illustrative and nonrestrictive in itself.

Description of drawings

Only unrestriced mode illustrates the many aspects of attached connector with example with accompanying drawing, in the accompanying drawing:

Fig. 1 illustrates the exemplary bus system that is integrated with the vehicle of portable music player according to the embodiment of the invention.

Fig. 2 illustrates according to another embodiment of the present invention to be coupled to the radio sources of host bus and the description of receiver.

Fig. 3 is the block diagram of the vehicle bus that is connected with interface according to the embodiment of the invention and a plurality of multimedia equipments.

Fig. 4 A and 4B illustrate according to the embodiment of the invention with the concept map of wireless audio frequency transmission function to the illustrative methods of the receiver of vehicle bus interface.

Fig. 5 illustrates according to the embodiment of the invention and is connected to for the ANTENN AUDIO player of transmitting audio frequency content to the transmitter module of receiver module.

Fig. 6 illustrates to have host bus according to the embodiment of the invention and is connected the Vehicular instrument panel of receiver module with connection.

Fig. 7 connects PC on knee to the diagram of the portable wireless transceiver device of the multiple equipment that is connected to the vehicle host bus according to the embodiment of the invention.

Fig. 8 is the portable wireless transceiver device that is connected to portable set according to the embodiment of the invention.

Fig. 9 A and Fig. 9 B illustrate according to the vehicle host bus of the embodiment of the invention and a plurality of equipment on the portable wireless transceiver device.

Embodiment

In one embodiment, the present invention relates to use the parts of vehicle bus join dependency, such as multimedia components.More specifically, an aspect of the present disclosure relates to portable audio player, its through cradle device shown here (cradle apparatus) or other butt couplings to the wireless launcher module.The wireless launcher module contains treatment circuit in order to being converted to the form that is suitable for through selected wireless transmission protocol emission from the audio frequency output of portable audio player.The wireless launcher module also comprises the transmitter device of wireless signal emission (over-the-air signal).

In addition, wireless receiver or wireless transceiver are coupled on the vehicle bus.The wireless receiver audio reception from the signal extraction audio content, and sends form with the signal of bus request it is transmitted into bus.Then, loud speaker that for example can be along the bus transmitting signal to automobile, the similar bus that is coupled to of this auto loud hailer.Middle balanced (intervening equalization) and amplifier circuit also can be arranged in bus in order to increase quality and promote the transmitting power of audio signal.By this way, device of the present invention can directly transmit to vehicle bus from portable set, is connected with interface with any necessary circuit or the equipment that are positioned on the bus, directly need not to use automobile wireless electricity spectral emission signal by the loud speaker emission.The invention provides the audio frequency dynamic range higher than existing solution, and can with vehicle bus on any suitable multimedia equipment be connected with interface.

The standard of available wireless transmission in the present invention can be any suitable type, comprises one of several available wireless standards.Example comprises Bluetooth ^TM, HomeRF ^TM, multiple IEEE802.11WiFi standard, Skinplex ^TM, Ultra-Wideband(UWB), IEEE ZigBee, network environment (Ambient Network), etc.

Fig. 1 illustrates the exemplary bus system that is integrated with portable music player according to the embodiment of the invention.System bus shown in the figure 140, it can be used to carry the information to the different bus system, or is connected to different core vehicle subsystem (core vehicle subsystem).Such subsystem can comprise for example ignition switch, bonnet, luggage case, window and door switch, suspension system, air bag, safety system, engine control, transmission control unit, and miscellaneous part.CPU 142, and storage control 144 and memory 146 can judge at which signal of system bus transmission, also can judge which signal can send to host bus 110 and from its reception through bridge 136.For example, memory 146 can comprise about with respect to lower priority transmission (as on the bus 110 based on multimedia transmission) which transmission be the higher priority transmission information (as because as imminent-collision and fastening vehicle suspension system).

Except conventional bus judge function, which transmission preferences these data and routines that are stored in the memory 146 of CPU 142 usefulness judge.In the above example, prevent from having on the host bus 110 equipment of address to send a signal to system bus 140 thereby CPU 142 can transfer signals to bridge 136, thereby be higher-priority functions delivery system bus 140.CPU 142 also can make transmitter send information to equipment on the host bus 110 from system bus 140, and vice versa.

Also comprise emitter/receiver module 134, it is designed to launch the signal from host bus 110, the equipment on this signal pointing system bus 140.Module 134 also is used for receiving from the signal of bridge 138 in order to be transferred to suitable equipment on the host bus 110.

Fig. 1 also comprises fire compartment wall 138, and in this example, thereby it is coupled to bridge and prevents from intruding into the subsystem that is coupled to system bus 140 from other entity unauthorizeds.Fire compartment wall 138 can be programmed to keep to be coupled to the safety of the subsystem of system bus 140 and host bus 110.Replacedly, thus independent fire compartment wall (not shown) can use in conjunction with host bus 110 and prevents and the irrelevant other system of the vehicle of the multimedia system that is coupled to host bus 110 or user's unauthorized invasion.The firewall protection particular importance of some form wherein relates to the wireless network on the host bus.

According to the bus standard that adopts, host bus 110 needn't only comprise multimedia type equipment, also can comprise other vehicle subsystems.

Being connected on the host bus 110 is controller 120, and it can be according to the data or the code judge bus transfer that are stored on the memory 118.Judgement method is special-purpose to the bus standard that adopts usually.For example, when adopting the bus based on multiplexing scheme, the multiple subsystem of controller 120 reusables, therefore every sub-systems is carried out transmission or receive data with time slot or the frequency channels of regulation.The specific protocol of using in conjunction with host bus 110 is not the specific design details of the present invention.In this example, suppose that host bus 110 consists of one group of electric wire, its transmission baseband digital data is to different sub-systems or from its subsystems receive data.

Fig. 1 also illustrates the automobile wireless electricity equipment 130 with standard antenna 132 and launches such as FM/AM in order to receive.Other configurations can relate to the reception of satelline radio emission.Wireless device 130 is coupled to conventional transmitters and analog-digital converter (TX/ADC) 128, and it contains to help the signal transmission form of particular host bus standard that radio signal is emitted to the necessary circuit of bus.In this example, TX/ADC 128 comprises that analog-digital converter is in order to be converted to simulated audio signal digital signal to transmit for bus.TX/ADC 128 also comprises suitable bus interface controller, and this controller is used to carry out interface communication with the specific bus agreement.

Two example loudspeaker 116 and 126 further are shown in Fig. 1.Loud speaker by amplifier 114 and 124 and transmitter circuit 112 and 122 be coupled to respectively host bus 110.Play in the stereosonic situation of FM at wireless device 130 the vehicle driver, digitized stereophonic signal will be received by loud speaker 116 and 126 through receiver/digital analog converter RX/DAC 112 and RX/DAC 122.RX/DAC 112 and RX/DAC 122 comprise that digital analog converter is in order to again to be converted to analog form with audio signal.Then amplifier 114 and 124 with signal boost to desired level so that the reproduction on loud speaker 116 and 126.

Further specify the transmitter module 100 that comprises bluetooth transmitters (Bluetooth TX) 104 among this embodiment.Transmitter module can power up by himself battery supply, and the hard wire of the contact in the vehicle that is connected to connects and leads to Vehicular battery, or power up by cigar lighter etc.Transmitter module 100 is connected to portable electronic device 102.For present embodiment, suppose that portable electronic device 102 consists of portable music player.Portable music player 102 can be the standard music player that uses mp3 or other audio compression techniques (such as wma etc.), such as the iPod of Apple Computer ^TM, or Rio ^TMMp 3 player etc.Portable music player 102 can be connected to transmitter module 100, and this transmitter module is connected to bicubic vocal input end in the reflector by its output earphone jack (jack).In certain embodiments, transmitter module 100 includes for the hook switch (cradle) that inserts portable music player, or is used for portable music player is connected to one group of clip (clip) of transmitter module 100.The physical configuration of transmitter module 100 is actual to be design details, those skilled in the art can consider for connect or fixed portable music player 102 to the different device of transmitter module 102.Replacedly, in some is implemented, portable music player can be not by entity be fixed to transmitter module 100.Thereby make audio frequency can be transmitted into module 100 but only be connected by electrical wiring to module 100.In the another kind configuration, another output on the portable audio player can be used for substituting earphone jack output such as circuit output (line-out) or spininess (multi-pin) adapter.

As mentioned above, transmitter module 100 comprises bluetooth transmitters 104 among this embodiment.Reflector 104 receives analog stereo signal from portable music player 102.Transmitter module 100 comprises bluetooth transmitters (TX) 104, this bluetooth transmitters is used modulator, and amplifier is modulated on bluetooth (pact) the 2.45GHz frequency band so that through radio wave 101 emissions with other circuit element up conversion (up-convert) baseband analog stereophonic signals and with it.Known in this field, bluetooth standard is divided into 79 channels of every 1MHz with frequency band, and transmits with spread-spectrum frequency-hopping method (spread spectrum frequency hopping methodology).

At receiving terminal, what be coupled to host bus 110 is Bluetooth Receiver (Bluetooth RX) 106.By known technology, the signal that receiver 106 recovers and demodulation receives from transmitter module 100, and be analog baseband signal with its down conversion (down-convert).Baseband signal receives by signal digital being turned to the TX/ADC module 108 that is suitable for launching in bus.TX/ADC also comprises suitable bus interface controller, and this controller is used for and specific bus protocol interface.Bus control unit 120 authorizes digitized signal to be transferred on the host bus 110.Then, be switched to analog domain by RX/DAC module 112 and 122 signals that receive.Then, AMP module 114 and 124 is amplified this signal, and music is reproduced on loud speaker 116 and 126.In addition, in certain embodiments, controller 120 can make the user that the volume control of audio signal of reception and balanced etc. can be provided by using available external control device on the automobile wireless electric installation 130.For example, portable electronic device 102 can comprise the spininess adapter, and reflector 100 can comprise Bluetooth Receiver, wherein control signal is transmitted into portable electronic device 102 from controller 120 through Bluetooth Receiver, thereby searching request is controlled various features or function on the portable electronic device, as stops, suspend, skip, volume control, etc.Replacedly or extraly, controller 120 can respond Vehicular occupant to the use of various corresponding control device on the stereo headphone unit and simple emissioning controling signal to portable electronic device.

In certain embodiments, TX/ADC module 108 can be integrated on the bluetooth RX 106.Namely, module 106 and 108 also can be combined in the single physical module.TX/ADC module 108 or RX/ DAC module 112 and 122 also can contain extra filter (not shown) in order to reduce any noise that may be injected in the Bluetooth signal.Similarly filter also can directly be configured in the Bluetooth Receiver 106.

In example shown in Figure 1, stereophonic signal is directly to send to from transmitter module 100 to receive the Bluetooth Receiver 106.Bluetooth and multiple existing wireless standard provide low-down interference signal, cause low injection to insignificant electrical noise amount in the RF ripple 101.Then through bus by proper circuit, be embedded into the loud speaker 116 and 126 that audio content in the signal is transmitted to vehicle.This means the sound that to realize approximate CD quality, use the launching technique of FM and AM frequency spectrum different from the front.

Although the example among Fig. 1 is used Bluetooth ^TMAs the realization of wireless transmission, multiple other existing and following wireless standards are fit to equally and are considered by those skilled in the art, and do not depart from spirit of the present invention and category.

Fig. 2 illustrates radio sources and the receiver that is coupled to host bus according to the embodiment of the invention.Although principle of the present invention is equally applicable to any suitable wireless technology, as mentioned above, the present invention is at Bluetooth ^TMDiscuss under the background of standard.Be noted that Bluetooth ^TMMany physical implementation of standard are feasible in practice, and the enforcement among Fig. 2 only for illustrative purposes.

Audio-source 202 can be comprised of audio player, such as iPod or be used for reappearing with a kind of form of multiple format (the 3rd layer of MPEG1, wma, etc.) other audio players of the audio frequency of compression.Transmitter module 200 contains the path of the analogy and digital circuit that is useful on the emission actual signal.Digital circuit blocks 226 is in transmitter module 200, and this digital circuit blocks 226 comprises CPU 228 and one or more memory circuitry 230.CPU 228 running packages are contained in the routine in the memory 230, it can comprise for example carries out advanced audio distribution framework (A2DP) agreement so that in the program without asynchronous connection (ACL) passage transmission stereo audio content, with the suitable coding protocol that is used for signal transmission (as, SBC).Memory 230 also can comprise the routine of carrying out multiple other Bluetooth specifications (bluetooth profile) and agreement, for example guarantee data with suitable header file (such as media packet header file (MP) and L2CAP header file) thus grouping and realization error correction are guaranteed Adaptive Data and are transmitted (compliant data transmission).Fig. 2 also illustrates for receiving the signal of emission and it is transmitted into the receiver module 206 of host bus 210 by bus interface controller 252.In certain embodiments, bus interface controller 252 can be the part of receiver module 206.

In view, audio-source is connected to transmitter module 200 by its output stereophone jack.(also can transmit to transmitter module 200, as mentioned above) with the circuit output interface on the portable audio player 202 or other interfaces.The left connection of circuit 203 expression transmitter modules 200 be connected connection, these two connect in 203 each and connect and contain the baseband analog signal.Receiver 204 contains the circuit that receives signal, and then this signal is amplified by preamplifier 205.Stereophonic signal through amplifying then by feed to analog-digital converter 208, this transducer is transformed into numeric field with signal.Then, be encoded such as the SBC coding techniques by using through digitized stereophonic signal.According to bluetooth standard, can be with 44.1KHz or 48KHz frequency sampling through the digital signal of SBC coding.

Then encoded digital signal is arrived modulator 214 by feed, and this modulator can be Gaussian Frequency Shift Keying (Gaussian Frequency Shift Keying(GFSK)) modulator.In this class modulation scheme, numeral " 1 " is represented by the positive frequency deviation of source signal, and digital " 0 " is represented by negative frequency offsets.The parameter of this class modulator is well known in the art, and can be at Bluetooth ^TMFind in the core specification (core specification).Then modulated signal can be transformed into analog domain with modulated signal by digital analog converter 216.Low pass filter 218 can be used to limit admissible signal spectrum, therefore reduces unwanted noise.Then signal is modulated on 2.402 to 2.480GHz the carrier signal, and this carrier signal represents the frequency spectrum for 79 passages of frequency hopping Bluetooth signal.But frequency synthesizer 232 binding crystal oscillators are used for recovering suitable signal(-) carrier frequency and abandon the signal with unwanted or parasitic (spurious) frequency, and this signal can be from upconverter 220 outputs.

Then resulting signal (resulting signal) is exaggerated device 222 amplifications, and after this tuner/switch (tuner/switch) 224 carries out certain signal processing with respect to signal.Such processing can comprise signal-balanced and signal is separated in the discrete time slot, etc.Then resulting signal is by band pass filter 234, and here unwanted frequency is dropped.Then according to bluetooth standard, by using frequency hopping at one or more passages 79, signal through antenna 213 as spread-spectrum signal (spread spectrum signal) by wireless transmission.In addition, the sequential of this process and used host-host protocol determine that by digital circuit blocks 226 this module is operably connected to relevant front end interface.

Then spread-spectrum signal 201 is received through antenna 233 by receiver module 206.Receiver module 206 can be the separate devices that is connected to bus in the vehicle through suitable hard wire.Replacedly, receiver module 206 can preset and be integrated in the vehicle.As transmitter module 200, this receiver module comprises digital circuit blocks 254, and this digital circuit blocks 254 comprises CPU 256 and memory 258.Memory 258 storages are used for carrying out the routine of Bluetooth Receiver agreement, such as decoded signal, read and remove the packet header file, error correction is provided in the time of suitably, and the multiple standard on the different osi layers of normally execution enforcement is in order to receive streaming audio (such as AADP, GAVDP, etc.) necessary code.

Thereby the signal that receives from antenna 233 abandons noise through band pass filter 236 filtering.Then, thus signal can process with tuning and switching circuit 236 and solve on demand signal-balanced and switch.Then be transformed into base band by using under down-converter 240 and the frequency synthesizer 242 resulting signals quilts.Frequency synthesizer 242 can comprise signal recovery circuitry (signal recovery circuitry), such as the phase/frequency monitor, and charge pump (charge pump), phase-locked loop (PLL) and voltage-controlled oscillator (VCO).Frequency synthesizer 242 can comprise that also crystal oscillator is used for reference frequency.

After signal was transformed into base band, this signal was exaggerated device 244 amplifications and uses analog-digital converter 246 again to be transformed into numeric field.Then for example fsk modulator signal well known in the art is demodulated by using.Then encoded digital signal is by using decoder 250 decoded, and decoder 250 is that for example sample frequency is the SBC decoder of 44.1KHz or 48KHz.

Then resulting digitized signal is launched into bus interface controller 252.The bus interface controller 252 that can be in certain embodiments receiver module 206 parts determines that digital audio signal is transferred to sequential and the form of bus.Bus interface controller 252 comprises for the receiving interface that receives from receiver module 206 signals, with the AFE (analog front end) that is used for receiving and transmitting at host bus, and the change-over circuit that is used for the digital audio stream that receives is converted to the specific signal format of bus.Master Bus Controller (being similar to Fig. 1 middle controller 120) but active referee and multiplexing function, and can in the control channel of the relevant appointment of the bus available bandwidth of the bus interface controller 252 that is used for audio signals, send a signal to bus interface controller 252 and receive signal from it.

Except consistent with specific bus protocol, other signals that bus interface controller 252 also can send institute's addressing other equipment and receive the signal of institute's addressing from it on the bus, the volume controller of other equipment such as automobile wireless electricity equipment on the bus, equalizer, tuner etc. or as following with reference to figure 3 described other illustrative device.In case audio signal is converted into the form that is suitable for transfer bus, the resulting signal that contains audio content just is launched into bus and sends to vehicle speakers through each amplifier and interlock circuit (such as digital analog converter etc.).

Shown in Fig. 3 is the block diagram of the vehicle bus that is connected with interface according to the embodiment of the invention and a plurality of multimedia equipments.In a configuration, a plurality of multimedia equipments are integrated in the vehicle.Yet, be appreciated that in other are implemented one or more equipment can be to connect discrete parts or other " after market (after the market) " equipment that is hard wired to bus by the outside available bus in the vehicle.Such example comprises PC 309 on knee.The type of multimedia shown in Fig. 3 host bus 310.What be connected to bus through the interface of hard wire is safety system 304, CD-RW driver 306, flash slot 308, PC 309 on knee, digital audio frequency recording device 312, LCD display 314, microphone 316, wireless device 318, loud speaker 320, CD recorder changer 322, equalizer 324, amplifier 326, Master Bus Controller 330, and storage control 332.Storage control 332 is connected to memory 334.

Each equipment 304,306,308,309,312,314,316,318,320,322,324,326 connects with interface mode through a plurality of corresponding network interface controllers 303 by host bus 310 with being connected.Bus interface controller 252 essentially identical functions among network interface controller 303 execution and Fig. 2.They be in fact master controller 330 from controller, should determine the bus judge from controller, namely which signal is which equipment when or with what frequency send in bus.Such judge's technology depends on network type and bus protocol, and can comprise multiple multiplexing scheme, the use of token, or the at random transmission with collision detection as adopting in the Ethernet.Judge's attribute depends on the specific bus of employing, and is the design details that can not depart from the present invention's spirit and category change.But each network interface controller 303 also sending and receiving comes autonomous controller 330 and from the signal of other network interface controllers 303, communicates by letter thereby each multimedia equipment 304,306,308,309,312,314,316,318,320,322,324,326 and 328 can both be transmitted and received to each other.

The physical attribute of bus can include the wire of any type that helps the bus standard that adopts and wire set, thereby as is embedded in one or more circuit boards and is connected to the copper cash of each network interface controller 303 around vehicle set.Replacedly or extraly, bus can comprise the use by the insulation wiring of necessary contact point, Connectorized fiber optic cabling, or the device of other suitable conductions.

Be similar to bus interface controller 252 among Fig. 2, network interface controller 303 also provides the front end analog interface in order to transmit and Digital Logic receives signal to bus with from bus, process and change-over circuit in order to will be converted to from the signal of different multimedia type equipment the form with the specific protocol compatibility of host bus 310 employings.

Master controller 330 can be accessed routine and the data that are stored in the memory 334 by storage control 332.This routine can be used to carry out bus protocol.Memory 334 also can contain data buffer storage and be used for storage and come the take up an official post transmission of what equipment of automatic network.In addition, each network interface controller also can comprise the single memory group, and this memory set comprises for the buffer memory of storage from the transmission of other equipment.

Wireless launcher module 300 is connected to portable audio player 302 to provide streaming audio to wireless transceiver 328.Wireless launcher module 300 can be arranged in the vehicle or any position of vehicle's surroundings.Wireless transceiver 328 is coupled to bus through its network interface controller 303.Transmitter module 300 and the wireless transceiver 328 common wireless networks that form make it possible to transmit streaming audio to bus interface.Wireless network can form piconet (piconet) or individual domain network (PAN), and available multiple short distance/moderate distance wireless protocols (as, Bluetooth ^TM, HomeRF ^TM, multiple IEEE 802.11Wi-Fi standard, Skinplex ^TM, ultra broadband (UWB), IEEE ZigBee, networking environment (Ambient Network), etc.) in any makes up.Wireless transceiver 328 comprises that acceptor circuit (as depicted in figs. 1 and 2) is used for receiving the streaming audio from transceiver module 300.Wireless transceiver 328 can comprise that also transceiver is used for wireless transmission signal to a plurality of wireless devices that adopt same wireless standard, the cell phone 336 that enables such as wireless (bus).Wireless transceiver 328 also can comprise the memory for interim storage streaming audio content.

Some advantage of the present invention can be easy to understand by concept map among Fig. 3.The method that is different from the front wherein uses FM reflector or wireless receiver to be directly connected to wireless device, any suitable multimedia equipment on the wireless launcher 300 addressable buses of the present invention.For example, (as here) wireless device 318 wherein, equalizer 324 is connected with amplifier directly and is connected with interface with bus 310, and when user selection uses the wireless launcher module 300 of audio stream, control device control volume, equilibrium and amplification on the instrument board circuit of user's available radio equipment 320 or association.Thereby master controller 330 provides audio frequency through boombox 320 with user required audio volume level and equilibrium by bus 310 interactions with related equipment.

And, using the bus schemes described in Fig. 3, the user can select to launch streaming audio to CD-RW driver 306 or digital audio frequency recording device 312 and play with later for record.Also can provide streaming audio to PC 309 on knee and being stored on the hard disk drive through host bus 310, or be provided on the flash memory device that is inserted in the flash slot 308.In order to be easy to use, thereby 316 identifications of configurable microphone may be wished the voice command of the difference in functionality realized about the user, record streaming audio such as an equipment on host bus 310.Audio stream also can be stored on the memory 334 for the later retrieval that is coupled to one of equipment on the bus.

In the embodiment that relates to cell phone 336, the user can be chosen between phone 336 and the wireless transceiver 328 and set up the voice communication passage.In configuration shown in Figure 3, wireless transceiver 328 comprises that also the signal emission that reflector is used for containing voice messaging calls back 336, and full two-way communication is provided.By wireless launcher 300, any equipment on the addressable host bus 310 of the cell phone that wireless (bus) realizes/enable.For example, thus the user can adopt microphone 316 and vehicle speakers 320 to realize hands-free session.In addition, different from the method for front, user's cell phone 336 can be connected with interface so that the record audio session with for example digital audio frequency recording device 312.If user's cell phone 336 comprises video camera, then can download photo to wireless transceiver 328 from phone 336 through piconet.Then photo can be presented on the LCD display 314, or is stored on the PC 309 on knee.Most individual domain networks comprise Bluetooth ^TM, be configured the effective transmission that realizes voice and audio frequency (music).Therefore, the user can adopt multiple wireless device and host bus 310 to be connected with interface, supposes that these wireless devices are only compatible with specific bus wireless protocols.

In yet another embodiment, host bus 310 can contain one or more extra transceiver (not shown) for different wireless protocols is coexisted in bus.Suppose that the wireless transceiver with different agreement (for example is configured to each other non-interference, consider possible interference, if necessary, master controller 330 can be configured to once only enable a transceiver), host bus 310 can be supported two or more wireless protocols.This is configured to the user and uses portable radio machine to increase multifunctionality and flexibility, and these portable radio machines adopt different operating system and use the different radio standard.

Fig. 4 is according to the flow conceptual view of illustrative methods of the receiver of transmission ANTENN AUDIO to the vehicle bus interface of the embodiment of the invention.Fig. 4 A and 4B illustrate the system that uses portable music player, and this music player has the output that is operably connected to the transmitter module input and the receiver module that is connected to vehicle bus through interface controller.As before, the particular wireless standard of selecting for reflector and receiver is that those skilled in the art can understand and do not depart from the performed design details of category of the present invention.

With reference to figure 4A, this process starts from (step 420) the transmission of the audio stream of portable music device from the user.In this step, for example, the user can with being connected to the wire of input jack on the reflector and being connected to the output earphone jack of music player, power up each equipment, in case and user selection he or she song or the playlist wanted, just press the Play button on the music player.At this moment, transmitter module received audio signal and be converted into predetermined format so that in wireless medium transmission (step 422).Although this shift step is with diagram example among Fig. 1 and Fig. 2, the certain architectures of transmitter module and change-over circuit can significantly change, and depends in essence the wireless protocols that selected equipment is used.Then transmitter module wireless transmission audio signal (step 424).The signal of emission comprises the destination address of receiver module in its data field.

Receiver module and then reception streaming audio signal are decoded on demand and restituted signal, and will be represented that the data of audio content are stored in the interim buffer memory (step 426), thereby prepare the transmission of audio signal on bus.The bus interface controller related with receiver module (according to design, it can be that the part of receiver module can not be yet) is treated to signal and is suitable for the form that transmits in bus.In addition, bus interface controller sends a signal to Master Bus Controller through host bus, and the bandwidth on the bus that request distributes is in order to send voice data (step 428) by bus.According to bus type, it maybe can be the specified portions of information on the data channel that this signal can send through special-purpose control channel.Should note, in other embodiments, between interface controller and master controller this type of shake hands (handshaking) may be unwanted, as allowing on bus at random in the agreement of transmission (usually having collision detection mechanism, such as Ethernet) or having transmitted in the agreement of designated lane on predetermined bus for this type of.In step 430, Master Bus Controller receives the signal from interface controller.

Refer now to Fig. 4 B, Master Bus Controller receives the signal from the receiver bus interface, and the state (step 432) of host bus is also checked in the distribution of this interface requests bandwidth immediately.If host bus hurries (that is, one or more other equipment that are coupled to bus just transmit), then authorizing voice data before the transmission on the bus, master controller is only waited for until host bus can be used.Replacedly, master controller can be judged current transmission whether relevant with the higher-priority function (step 434).For example, system bus can ask to use bus, or the vehicle safety function is carried out.When master controller determines that bus is current to be assigned to higher-priority functions, master controller sends the ACKNOWLEDGE signal that is addressed to the receiver bus interface through control channel, and this signal designation receiver bus interface will be postponed audio data transmission (step 438) with the time interval X of appointment.In other configurations, only indicate the receiver bus interface should keep idle by the ACKNOWLEDGE signal that Master Bus Controller sends, and postponing the transmission of any audio content until bus can be used, this moment, Master Bus Controller sent back to the receiver bus interface with TX OK signal.

With reference to embodiment among the figure 4B, Master Bus Controller waits for that fixed time interval X transmits also again verification host bus state (step 432).If do not use host bus (step 434), host bus interface sends TX OK signal to the receiver bus interface.In this embodiment, thus receiver module with setting and the volume adjustings (step 440) that can send the one or more transmission that are addressed to the radio bus interface and realize wireless devices control music stream.Finish in case shake hands, the receiver module transmission is addressed to the audio signal (step 442) of the interface node related with vehicle speakers.Simultaneously, wireless device can send a signal to receiver module and vehicle speakers and receive signal (for example, passing through control channel) from it, thereby by automobile wireless electricity equipment sound reproduction is set up control.Other equipment on the bus also can be used to and wireless device such as equalizer, thus the setting that receiver module and the control of loud speaker node communication are play about audio frequency on the loud speaker.Wireless device also can be configured to carry out when needed such as time-out, stops, and skips, and the function such as refunds.This plays related multiple setting (step 446) so that the driver can adjust with audio frequency with radio control unit on the one hand the present invention.

Fig. 5 and Fig. 6 illustrate according to the embodiment of the invention and are connected to transmitter module so that the example of transmission of audio content ANTENN AUDIO player of receiver module to the vehicle host bus.With reference to figure 5, portable audio player 502, such as Mp 3 player, PDA, mobile phone with audio frequency ability to play etc. is fixed on the accessory of transmitter module 500.Portable audio player 502 comprises display 514 in order to watch song, the feature of playlist etc., and the multiple attribute of song.Control button 516 suspends so that the user can control such as broadcast, the function such as stops.Circuit 510 is connected to the earphone jack 512 of portable audio player 502 from transmitter module 500, and the earphone jack 512 of portable audio player 502 provides the Analog Baseband stereo output signal, and this signal is sent to transmitter module 500.Transmitter module 500 comprises in a large amount of known treatment circuit and the memory any and is used for received audio signal and is converted into the form that is suitable in transmitted over wireless networks, and such as HomeRF, IEEE 802.11, bluetooth etc.Transmitter module 500 contains the wireless signal 508 of audio content by antenna (being integrated into transmitter module 500) emission.By using the battery of transmitter module 500 self, the hard wire that is connected to vehicle power supply connects, or by being connected to the standard cigar lighter flexible cord of transmitter module 500, power can be applied to transmitter module 500.

Fig. 6 is the diagram according to the example vehicle instrument board of the embodiment of the invention.Vehicular instrument panel 610 comprises wireless device 614, CD recorder changer 618, and power and volume button 614, and be used for multiple button and the transducer 616 of the several functions of control wireless device.Also having disclosed " joystick " 619 is used for making Vehicular occupant control multiple audio frequency multimedia function.The conceptual host bus 608 that is integrated into vehicle that illustrates among Fig. 6.Host bus 608 is connected to wireless receiver module 606.Although host bus 608 is integrated on the vehicle, it can comprise that point of interface (on the instrument board of vehicle or other parts) is used for making the user other multimedia equipments can be connected to bus.In one embodiment, wireless receiver module 608 is integrated on the vehicle.In another embodiment, wireless receiver module 608 is discrete parts that the user can be connected to by the suitable interface that is positioned at vehicle bus.Be not integrated at receiver module in the situation of vehicle, receiver module also can connect received power from cigar lighter 620 received powers or from other hard wires that are connected to vehicle power supply.Instrument board 610 also comprises boombox 622.

Antenna (not shown) on the receiver module 606 from transmitter module 500 received audio signal 508(referring to Fig. 5).Such as the explanation of reference front embodiment, because the advantage related with bus configuration, the user can select to reappear audio frequency (Fig. 5) from portable audio player 500, and adopts control device 614 and 616 to adjust its volumes and sound characteristic (such as balance, equilibrium, etc.).In other embodiments, the user can make these adjustment and control these functions with the button on the portable audio player 500.Music (Fig. 5) from portable audio player 500 is reappeared by loud speaker 622.

With reference to figure 5, transmitter module 500 can be little portable set, and it has " clamping (clip-on) " or assemble ability in some configuration, thereby so that portable audio player 502 " adheres to (piggyback) " to transmitter module 500.In other embodiments, transmitter module 500 can separate with portable audio player 502, only connects by the electric wire that is used for from portable audio player 502 transmission of audio data to transmitter module 500.In some other embodiment, transmitter module can be integrated on the instrument board of vehicle or be integrated between the operator's seat and passenger seat of vehicle, shown in exemplary transducer module 500 among the figure.Transmitter module 500(Fig. 5 no matter) uses the standalone module of " after market " with vehicle, still be integrated into during fabrication on the vehicle, it all is design alternative, and intelligible embodiment can not depart from spirit of the present invention or category among those skilled in the art.

In another aspect of the present invention, disclosed a kind of portable wireless transceiver device.The user of Portable transceivers can transmit the data to the coupling or be connected to the second transceiver of host bus and from its receive data (for purpose of the present disclosure, " coupling " or " connecting (wire) " means or direct-coupling, perhaps by intermediary circuit (intervening circuitry), such as the network interface controller coupling).And then second transceiver can be through the host bus transmitting data, and its address appears at the equipment discernible signal in the data and it is made respective handling.By using many aforesaid among a small circle wireless technologys, Portable transceivers can consist of wireless transceiver.Replacedly, Portable transceivers can be the part of bidirectional remote-control device, be used for controlling several functions at an equipment, as Vehicle security system and multiple multimedia equipment (such as CD Player, satelline radio, gps system, etc.).

Fig. 7 shows the figure that illustrates according to the wireless transceiver example of one aspect of the invention.In this example, Portable transceivers 740 is used ultra broadband (UWB) wireless protocols.Transceiver 740 is coupled to PC 748 on knee by generic serial port (USB) connection.Fig. 7 further illustrates the MOST bus 700 that is integrated in the vehicle in order to realize the coupling of multiple multimedia equipment.For example, automobile wireless electricity equipment 729 receives the FM/AM signal through vehicle antenna 726, be suitable number format by analog-digital converter (ADC) 728 with analog signal conversion, then launch digital signals (in certain embodiments, this reflector 714 consists of network interface controllers) to the MOST bus through reflector 714.Thereby reflector 714 can append to address information data and send it to the plurality of devices that also is coupled on the bus.Example comprises that also reception can consist of network interface controller from the reflector 719(reflector 719 of the data of bus reflector 714), one of them reflector 714 is coupled to digital analog converter (DAC) 730, and it receives from the data of reflector 719 and sends it to amplifier 735.Then signal is provided for loud speaker 732.Other paths of reflector 719 are shown, and DAC 730, and the same function of loud speaker 732 execution, but exception is to carry out to amplify in the loud speaker that is directly connected to DAC 730.

In an example, PC on knee can send wireless signal to being installed in the vehicle through UWB transceiver 740, takes the LCD display 720 in the district such as Vehicular instrument panel or behind vehicle.In this case, addressing data is to display, and through antenna 742 wireless transmission wireless signals 746, received and sent to TX/RX unit 716(by digital signal processor (DSP) 777 it also can comprise network interface controller by UWB transceiver 779).So signal is transmitted into the reflector related with the LCD display path 714 through bus 700.Then data communication device is crossed DSP 718 transmissions in order to process and finally to send to LCD display 720.

In addition, the invention also discloses Double-Direction User interface (UI) 724(such as joystick or instrument board controlling organization), wherein Vehicular occupant can be inputted the order that will send in bus 700 through DSP 722 and TX/RX module 716, this order will be received by another addressed device, or through TX/RX module 716, DSP 777 and UWB transceiver 779 send it back PC on knee, so that with returning UWB transceiver 740 by wireless signal 746 and antenna 742 wireless transmission.Data are sent to PC 748 on knee by the USB connection subsequently.

Fig. 7 further illustrates the satellite radio devices 734 that is coupled to bus, and amplifier 736 and vehicle speakers 733 are wherein arranged, and this loud speaker is corresponding to same loud speaker 732.In the above described manner, the user of PC 748 on knee can utilize feature and the function of UWB transceiver 742 and 779 control satellite radio devices 734.

Portable music player 701 is shown in addition, and it is connected to bluetooth transmitters 702.With suitable agreement, such as bluetooth, audio frequency or stereo audio content can be through the antenna 704 of bluetooth transmitters 702 by streamings (streamed) and be wirelessly sent to Bluetooth Receiver 710, shown in wireless signal 706.Bluetooth Receiver demodulation and lower switching signal, and send a signal to DSP 712, can carry out any suitable signal here and process.Resulting signal is (such as the broadcast of the wireless control device adapter of control signal requesting service portable music player 701, skip, stop, suspend, volume, with other functions, or streaming audio (streamed audio)) through bus transfer and by shown in intermediary circuit be transferred to vehicle speakers 732.

In certain embodiments, thus the passenger can use UI 724 to send a control signal to portable music player 701 makes the control device of wireless device 729 can control portable music player.In these configurations, for more advanced portable music player, the passenger can start Handshake Protocol between UI 724 and the portable music player 701 to the use of the UI 724 of vehicle, thereby makes the control device of automobile wireless electricity equipment or UI 724 allow the instrument control device control of passengers on Vehicular instrument panel to play.

Fig. 8 is the view of illustrative portable wireless transceiver module 822 of the present invention.Transceiver module 822 can be configured to rectangular in form, substantially as shown in the transmitter module among Fig. 5 500, maybe can be other shapes.The size of transceiver module 822 depends on its complexity naturally.In this embodiment, transceiver module 822 expression multipurpose and multi-functional unit, it comprises for a plurality of interfaces of exemplary portable device 800 and a plurality of internal transceiver and a plurality of internal transceiver, and each transceiver adopts the different radio agreement.In this example, exemplary portable device 800(such as Portable GPS unit, audio player, PDA, PC on knee etc.) be coupled to the interface module 851 in the transceiver module 800.In this example, interface module 851 is coupled to portable set 800 through USB port 802 and the USB cable 804 of portable set 800, the usb 1 (805) of USB cable 804 connection interface module.

Yet, for other portable sets 800, interface module 851 advantageously comprises FireWire interface 2(806), synthetic video interface (composite video interface) 3(808), component vide interface (component video interface) 4(810), S-Video interface 5(812), RCA audio interface 6(814), and represent and point to a plurality of additional interface (818) of interface N such as dotted line RS-232 interface 7(816).

The number that should be noted that interface is design details and changes according to many factors, comprises the most common employed interface, the cost related with making transceiver module 822, small size and portable and larger size and stronger functional choice etc.For example can predict simpler transceiver module 822, only adopt that such as it USB port or RCA connect etc.

Further, interface 1 to N is a large amount of circuit blocks in the circuit module 851 of transceiver module 822 among Fig. 8, the signal that transceiver module 822 is designed to process or receives from portable set 8, or from a plurality of transceivers 842,840, and one of 838 signals that receive (below further specify).Interface controller/CPU 824 is connected to interface memory module 826, this interface memory module 826 and then be connected to interface logic 830.DSP 832, decoder 834, and ADC 836 further is connected to interface logic.

Thereby which interface is the program in interface controller/CPU 824 runnable interface memories 836 control use in preset time.Interface logic 830 and DSP 832 comprise logic, and this logic is route signal to its suitable destination and to process any digital signal be suitable number format in order to being transferred to portable set 800 or transceiver 842,840, or 838 and necessary from its reception.Decoder 834 is decoded on demand and will be inputted the signal that maybe will export in order to be transferred to these destinations or from its reception.If the signal from portable set 800 is analog format, ADC836 is transformed into numeric field in order to further processing or transmission with signal.Notice that although shown multiple circuit block 824,826,830,832,834, and 836 connect, those skilled in the art can consider any suitable tissue and the method for these circuit blocks is set, and described customized configuration is not limited to the present invention.

Interface module is connected to the transceiver part 893 of transceiver module 822.Shown in the arrow of contiguous logic glue 861 and 848, data inlet and outlet connectors module 851.In this example, transceiver part 893 comprises three transceivers; Yet, can consider only to use a transceiver.Each transceiver 842,840 in this example, and 838 employing different radio standards.Transceiver 842 adopts traditional Bluetooth protocol to come wireless transmission and receives signal.In this diagram, transceiver 840 uses the I.E.E.E.802.11 wireless protocols.Another transceiver 838 can use separately, unspecified agreement.Therefore, if the host bus of vehicle adopts the transceiver of more than one types, then transceiver module 822 provide greater flexibility be connected with bus on equipment be connected with interface.For example, if the simple MP3 player of portable set 800 expressions then can be selected bluetooth transceiver 842.Replacedly, if portable set 800 expression DVD player or other high bandwidth media sources, but the transceiver 840 of choice for use I.E.E.E.802.11 (n) agreement then.

With reference now to the bluetooth transceiver among Fig. 8,, wherein provides bluetooth controller 865, memory 863, and interface logic 861.But routine in bluetooth controller 865 run memories 863 is in order to carry out Bluetooth protocol, as mentioned above.Interface logic 861 individually or in conjunction with bluetooth controller 865, communicates with interface logic 830 and interface controller/CPU 824, whether is used for transmitting data in order to judge bluetooth transceiver 842.On the contrary, the interface logic 861 of bluetooth controller 865 and bluetooth transceiver 842 can be used for informing that interface controller 824 bluetooth transceivers 842 of interface module 851 are receiving the signal that will enter.Bluetooth transceiver 842 further comprises transceiver and the acceptor circuit 895 that adopts bluetooth standard.By this way, data can be delivered to interface module 851 and bluetooth transceiver 842 and spread out of from it, are used for sending data to the equipment of the host bus that is connected to vehicle and from its receive data.

I.E.E.E. transceiver 840 is worked in the mode that substantially is similar to bluetooth transceiver 842.I.E.E.E. transceiver comprises reflector and the acceptor circuit 842 that adopts specific I.E.E.E.802.11 standard.And then, thereby the code that 802.11 controllers, 844 running packages are contained in the memory 846 is carried out a kind of 802.11 wireless protocols, and in some configuration, judge whether select transceiver 840 in the transfer of data.Thereby interface logic 848 and interface controller/CPU 824 and transmit the data to interface module 851 and transceiver 840 and from its receive data with related other circuit of interface module 851 are interactive.

Antenna 817 wireless signal emissions are coupled to the transceiver of vehicle host bus and receive wireless signal from it to one or more.Further, Subscriber Interface Module SIM 820 provides order and control button for transceiver module 822.When activating and operate transceiver module 822, the user can select different operation modes, can start wireless streams (wireless streaming), can and close device power-on, and can carry out the relevant function of other transceivers.The power of transceiver module 822 can by, for example battery, automobile cigarette lighter adapters or the wire that is connected to the vehicle contact connect to apply.

Fig. 9 A and 9B represent to use a plurality of equipment of being coupled to bus and the embodiment of the invention of a plurality of portable wireless emitter, receiver or transceiver.These figure according to bus on one of some equipment carry out multifunctionality and the ability that interactive ability illustrates portable wireless transceiver device of the present invention.At first with reference to figure 9A, it illustrates the vehicle host bus 902 that is coupled to a plurality of equipment.FM/AM wireless device 912 receives FM/AM broadcasting with amplifier/audio frequency control module 913 (in certain embodiments, this module is incorporated into individual equipment, in the stereophone unit) with vehicle antenna 900.These broadcasting are transformed into numeric field by ADC 910, and determine to be launched device 904 emissions according to bus arbiter (bus arbitrator) 914 and user interface (not shown).Reflector 904 can comprise bus interface controller, and this interface controller for example has logic and/or run time version is the form that is suitable for transmitting in order to convert audio signals, and no matter adopts which kind of bus standard.Reflector 904 also can append to suitable destination address on the signal.

Then, audio signal can be through reflector 904, and DAC 915, and amplifier 908 sends to a plurality of loud speakers 911 at vehicle bus 902, in order to reappear audio frequency in vehicle speakers 911.In addition, can be transmitted into bluetooth transmitters 913 through reflector 904 and modulator/DAC 954 from the audio content of FM/AM radio 912, as shown in the figure.Then, for example signal can be wirelessly transmitted to the transceiver module (not shown) that portable blue-tooth enables, and this transceiver module can be connected to the voice-frequency sender (not shown).

Further, Fig. 9 A illustrates the cell phone 916 with bluetooth transceiver function.Transceiver can be through antenna 920 usefulness Bluetooth protocol sending and receiving wireless signals, shown in four-headed arrow 918.The turnover cell phone 916 signal through antenna 923 by bluetooth transceiver 922 sending and receivings.Bluetooth transceiver 922 is coupled to bus by demodulator/ADC module 924 and TX/RX unit 904, and this TX/RX unit 904 can be the network interface controller for formatted signal (such as extra address information and error checking coding).Then, for example signal can be routed to a plurality of loud speakers 911 for reappearing voice at loud speaker 911.Note module 922,924, and the four-headed arrow between 904.The user can speak to the microphone that is coupled to bus, and these voice are converted to audio signal by transducer and send in bus by bluetooth transceiver 923, bluetooth transceiver 923 and then wireless audio signal postbacked to cell phone 916.

Fig. 9 A further comprises the bluetooth transmitters 956 that is connected to modulator/DAC 954, modulator/DAC 954 and then be connected to reflector 904, and this reflector 904 is connected to host bus 902.This reflector 956 can the wireless transmission analog signal be to the portable mobile wireless receiver on its antenna 913, and this portable mobile wireless receiver can obtain analog signal from any equipment that is connected to host bus 902.In other embodiments, modulator/DAC unit 954 can be not necessarily, but and then the digitally coded signal of bluetooth transmitters 956 wireless transmissions to wireless point of destination.

Shown in Fig. 9 A, under the control of control circuit 936, satellite TV receiver 939 is by its antenna 937 receiving satellite broadcasts.The signal that receives is exaggerated device 934 and amplifies, demodulated device 932 demodulation, and further processed by processor/converter block 930, thereby be the wireless transmission ready signal.At this moment, contain the wireless signal of the data that received by satellite TV receiver 939 by adopting the standardized wireless launcher of 802.11 (n) to be launched into the antenna 950 of I.E.E.E.802.11 (n) transceiver 952 through antenna 928.Transceiver 952 contains signal and the implicit necessary circuit of satellite-signal (underlying satellite signal) of recovery that demodulation receives.

The signal that is received by transceiver 952 is exaggerated device 948 amplifications, and then passes to base band/ADC module 946, and here signal is converted into number format.So, emitter/receiver module 909 is converted to digitized signal the form of the agreement that is suitable for the use of vehicle host bus, to its extra address information, and through bus it being transmitted into television indicator 944, this display for example can be installed on instrument board or the vehicle top surface so that the passenger on the back seat watches.Especially, signal is sent to the reflector related with the television indicator path 904, and is amplified by amplifier module 908.Then, thus signal is that analog format (if necessary) is in order to watch at television indicator 944 by control circuit 942 processing signals and/or switching signal.

In some configuration, television indicator 944 can contain the control circuit unit 942 that is necessary, and can be the LCD panel, plasma display, or cathode-ray tube display.Bus arbiter 914 and user interface can be used to start bandwidth allocation on the bus so that the transmission of reception satellite TV signal is in order to show at television indicator 944 on the Vehicular instrument panel (not shown).

Fig. 9 A further illustrates the integrated digital video recorder of vehicle (DVR) 936, and it is connected to vehicle bus through control circuit module 940 and TX/RX unit 906.In a view, the path of satellite-signal by 802.11 (n) transceiver 952 that is positioned on the bus is addressed to DVR unit 936.Signal is received by TX/RX unit 906, and then is transferred to control circuit module 940 and passes to DVR 936.The control circuit 940 that comprises in certain embodiments among the DVR 936 is treated to form with the signal transformat compatibility of DVR 936 with signal.Should be noted that DVR 936 also can postback video and audio signal to television indicator 944 through bus, wherein can show prerecorded video.

Fig. 9 B is the further part of Fig. 9 A, and it illustrates the second segment of same host bus 902.The game paddle 982 that is coupled to bluetooth transceiver 990 makes the user can wireless and interactively control the integrated LCD PC/ video-game display of vehicle.Replacedly, Vehicular occupant can be with as controlling the image on the LCD PC/ video-game display with reference to the joystick shown in the of 619 among the figure 6.Game paddle 982 comprises controller, and comprises in some cases the memory of the game that will carry out for the store car passenger.Data are sent out and receive (Fig. 9 A) between bluetooth transceiver 990 and bluetooth transceiver 922, bluetooth transceiver 922 transmits and receives game data by demodulator/ADC unit 924 and TX/RX module 909 at vehicle host bus 902.In addition, with reference to figure 9B, portable video game console 972 can be connected to portable mobile wireless bluetooth transceiver module 974, and signal can be through antenna 975 at bluetooth transceiver 923(Fig. 9 A) and bus between be sent out and receive.

So again with reference to figure 9B, it is network interface controller that the data that send through bus are launched into this unit of 909(, TX/RX unit), be exaggerated device 908 and amplify, by 992 decoding and/or the demodulation of decoder/demodulator unit.Then passed through control circuit 994 by the mobile data that produce of game paddle 982, this control circuit 994 is controlled the interactive of ongoing game.Control circuit 994 can comprise that also buffer memory is used to store and the related information of playing, and comprises that also memory frame buffer memory (memory frame buffer) is used for refreshing LCD PC/ video-game display 996.Control circuit unit 994 also can send back to the data through the bus wireless transmission control circuit related with game paddle 982, in order to the interaction between game player and the display 996 is provided.

Fig. 9 B further illustrates the MP3 player 960 that is coupled to wireless blue tooth reflector 962.Bluetooth transmitters 962 is through antenna 989 emission streaming audios, and is noted earlier such as the disclosure.Signal is received through antenna 923 by the integrated bluetooth transceiver 922 of vehicle, thereby and is passed to and is transferred to a plurality of loud speakers 911 on the host bus.Therefore loud speaker can carry out audio reproduction to the MP3 data of storing on the MP3 player.

Illustrate equally on the portable wireless transceiver device 966 that laptop computer 964 is connected to 802.11 compatibilities.Transceiver 966 can be by transmitting wireless signal to transceiver 952(Fig. 9 A) and transmit and receive data from its reception signal.In this mode, portable PC 964(Fig. 9 B on knee) can communicate with the Arbitrary Digit destination device that is connected to bus, such as DVR 936(Fig. 9 A), television indicator 944(Fig. 9 A), cell phone 916(Fig. 9 A), LCD PC/ video-game display 966(Fig. 9 B), etc.

Further, Fig. 9 B illustrates beep-pager 968, and this beep-pager can be unidirectional or bidirection pager.Beep-pager 968 is coupled to portable mobile wireless bluetooth transceiver 970.Beep-pager 968 can receive signal from standard telephone network.Then, beep-pager can pass through, for example bluetooth transceiver 923(Fig. 9 A) through these signals of host bus 902 emission, then bluetooth transceiver 923 can transmit a signal to memory (not shown) on the host bus 902 through bus.In addition, if beep-pager 968 is bidirection pagers, then Vehicular occupant can by on instrument board and the user interface that is connected to bus transmit to beep-pager, or from cell phone 916(Fig. 9 B) emission.

As another example, the portable vehicle of bluetooth-enabled/amusement remote controller 976 consists of portable wireless transceiver device equipment, its can main control system bus 902 on feature and the function of different multimedia equipment.For example use blue Tooth remote controller 976, the user can adjust the stereosonic volume of vehicle, start the GPS equipment that is connected on the host bus 902, adjust the setting of television indicator 944, between PC pattern on knee and satellite television, switch, start instrument board to the control of the MP3 player that is wirelessly connected to bus, etc.The portable vehicle of bluetooth-enabled/amusement remote controller 976 advantageously uses bilateral antenna 978 to send a signal to respectively the wireless receiver related with it and receives signal from related wireless launcher.

At the portable remote controller 980 that is used for control vehicle safety function shown in Fig. 9 B, such as alarm function, window and door lock, etc.Portable remote controller 980 comprises wireless transceiver in order to one in the transceiver that sends a signal to a plurality of agreement couplings that are connected to host bus 902 with from its reception signal.Portable remote module 980 transmits to bluetooth transceiver 923 with the bluetooth form in one example, and the data during this bluetooth transceiver 923 transmits by host bus 902 by aforesaid intermediary circuit are to TX/RX unit 906.957 execution switching signals are that Vehicle security system 961 can be identified the necessary any processing of form thereby data are sent to digital signal processor.And then, Vehicle security system 961 by emission through bus addressing to bluetooth transceiver 923(Fig. 9 A) signal send and reply to remote controller, then this signal is sent to the wireless blue tooth receiver (Fig. 9 B) that is present in portable remote controller/transceiver 980.

In one embodiment, functional portable vehicle/amusement remote controller 978 and portable remote controller 980 are integrated together as single " order and control " remote controller, are used for feature and the function of the many equipment on the host bus 902 that are operatively connected to.

Fig. 9 (b) further openly is coupled to the portable microphone unit 984 of bluetooth portable wireless transceiver 990, thereby for example make Vehicular occupant speak to send its sound to another person on the cell phone 916 in " hands-free " mode, and need not to use the microphone on the cell phone 916.In this example, the user only speaks in vehicle and portable microphone 984 picks up voice.Portable microphone 984 contains that to have speech conversion be the transducer function of the signal of telecommunication, and wherein then signal is sent to bluetooth portable transceiver 990.Then the signal that contains voice data is received by the Bluetooth Receiver circuit in the cell phone 916, and uses a kind of (such as CDMA) in many cell phone connection protocols to be launched into the personnel of the circuit other end.As mentioned above, when circuit other end personnel were speaking, the bluetooth transmitters circuit of its voice from cell phone 916 was transmitted into Bluetooth Receiver 923(Fig. 9 A), then this signal sends by bus in order to finally reappear at loud speaker 911.

Further disclose Portable GPS equipment 986 and wireless Internet receiver 988 among Fig. 9 B, they all are coupled to portable blue-tooth transceiver 990.GPS equipment 986 can be under user control with aforementioned manner emission video signal to LCD display 996 or television indicator 994.Wireless Internet receiver 988 is to be configured any equipment that receives wireless the Internet access apart from network long.The data that receive also can be sent to LCD display 996 through the portable blue-tooth transceiver, and for example the user can use user interface (not shown) or the interior internet of portable remote controller 978 interactive access vehicles on the Vehicular instrument panel.

Optional equalization function is provided together for equalizer 953 and reflector 904 so that the audio quality that control is launched through bus.The use of equalizer 953 is by bus arbiter 914(Fig. 9 B) control.

Fig. 9 B also illustrates the memory 955 that is coupled to TX/RX unit 906.This memory and bus arbiter 914(Fig. 9 A) be combined with in case with allocated bandwidth on the bus to distinct device, and the operation on the control bus.Also can provide in addition the storage control (not shown) to come that data read and write in the execute store 955.

The satellite radio devices receiver 967 that is integrated into vehicle bus further is shown among Fig. 9 B.Satellite radio devices is launched its data to digital signal processor 957(and when entering signal is analog signal, also can adopt ADC).DSP 957 carries out signal sampling or the conversion of any necessity, and then this signal is sent to amplifier 963 in order to transmit in bus.(noting not illustrating the TX unit here).So under the control that Vehicular occupant is used, by using suitable user interface or be built in satellite radio controller for electric consumption in the vehicle stereophone, the satellite audio transmission can be at loud speaker 111(Fig. 9 A) reappear.

In addition, flash interface 969 can be integrated in the vehicle.Flash interface 969 allows users that flash card is inserted in the slot on the instrument board, or other suitable districts of vehicle interior.Voice ﹠ Video can be recorded on the flash memory by source device.For example, when source device was satellite radio receiver 967, the address of flash interface can be affixed on the voice data, and then data can be sent to flash interface in order to be recorded on the flash media.As another example, the user can speak to microphone 984, and microphone 984 produces the signal that can transmit in bus in the above described manner, and is addressed to flash memory so that record.

In addition, the integrated DVD/CD player of vehicle can encoded device/modulator 998, amplifier 908, and reflector 904 is coupled to bus, so that the CD music is transferred to loud speaker 911 in the above described manner, or be transferred to loud speaker 911 and television indicator 944 or LCD display 996.

The explanation of front is provided to so that any those skilled in the art can implement the described various embodiment of this specification.The various modifications of these embodiment will be obvious to those skilled in the art, and the General Principle of definition here may be used on other embodiment.Therefore, claim is not for the embodiment shown in limiting here, but meets the four corner consistent with written claim, and wherein the element of singulative does not refer to " one and only one " and refers to " one or more ", unless otherwise indicated.All 26S Proteasome Structure and Function equivalents that run through element among the described different embodiment of the disclosure clearly are included in this for your guidance and are included in the claim scope, and these 26S Proteasome Structure and Function equivalents are well known by persons skilled in the art and will be for known to it.And, disclose here not for open special use, with whether clearly to repeat these disclosures in the claim irrelevant.Do not have the claim element to understand according to the regulation of 112, the six of 35U.S.C. §, unless this element with phrase " be used for ... device " clearly repeat, or in the situation of claim to a method, this element be with phrase " be used for ... step " repeat.

Claims (20)

1. ANTENN AUDIO source, it comprises:

Removably be connected to the wireless launcher module of the output of portable audio player, wherein said wireless launcher module comprises:

Receiver is used for receiving the simulated audio signal from described portable audio player;

Preamplifier is used for amplifying described simulated audio signal;

Analog-digital converter is transformed into numeric field with described simulated audio signal; With

Digital circuit blocks with CPU is used for the described audio signal with predetermined wireless protocols coding wireless transmission, and described CPU running package is contained in the routine at least one memory circuitry; With

Be configured to be coupled to the wireless receiver that is integrated in the host bus in the vehicle, be used for launching described voice data to described bus,

Wherein said wireless receiver is further configured to receive the audio signal of described emission with described predetermined wireless protocols, and recover voice data in the described signal and the voice data of the described recovery of emission, in order to play being coupled to the loud speaker that is integrated in the bus in the described vehicle.

2. be used for the wireless system of vehicle, it comprises:

Be integrated in the bus in the described vehicle;

Be coupled to one or more loud speakers of described bus; With

The wireless device of communicating by letter with portable music player with wireless protocols of configuration, wherein said wireless device is further configured that audio frequency is transmitted into described one or more loud speaker from the above portable music player of described bus.

3. wireless system as claimed in claim 2, further comprise the controller that is coupled to described bus, wherein said controller is configured to communicate by letter with described portable music player by described wireless device, can remote control from the described audio frequency of described portable music player.

4. wireless system as claimed in claim 3, wherein said controller is further configured, can remote control from volume, balance and the equilibrium of the described audio frequency of described portable music player.

5. wireless system as claimed in claim 3, wherein said controller is further configured, can remote control one or more functions of described audio frequency from described portable music player to described one or more loud speakers, wherein said function comprise stop audio frequency, suspend audio frequency, the audio frequency that advances, audio frequency and skip the part of described audio frequency falls back.

6. wireless system as claimed in claim 3, further comprise the radio that is coupled to described bus, wherein said controller be further configured to respond the user to described wireless control and can remote control from the described audio frequency of described portable music player.

7. wireless system as claimed in claim 2, further comprise configuration to judge the controller that transmits on the described bus.

8. wireless system as claimed in claim 7, wherein said controller be further configured with make described wireless device described audio frequency can be emitted to described one or more loud speaker before by judging whether that described bus can be with the transmission of judging on the described bus.

9. wireless system as claimed in claim 8, wherein said controller is further configured to respond the request from described wireless device, judges whether that described bus can use.

10. wireless system as claimed in claim 8, wherein said controller is further configured, if it judges that described bus can use, can make described wireless device that described audio frequency is sent to described one or more loud speaker.

11. wireless system as claimed in claim 8, wherein said controller is further configured, if it judges that described bus is unavailable for the transmission of the described audio frequency from described wireless device to described one or more loud speakers, judge the priority from the current transmission of the second equipment that is coupled to described bus.

12. wireless system as claimed in claim 11, wherein said controller is further configured, if it judges that the described current transmission from described the second equipment has certain priority, postpones the transmission of the described audio frequency from described wireless device to described one or more loud speakers.

13. wireless system as claimed in claim 11, wherein said controller is further configured, if it judges that the described current transmission from described the second equipment has certain priority, use the transmission from the described audio frequency of described current transmission judge from described wireless device to described one or more loud speakers of described the second equipment.

14. be used for the wireless device of vehicle, comprise:

The wireless receiver of communicating by letter with portable music player with wireless protocols of configuration;

Configuration with in that be integrated on the bus of described vehicle will be from the audio transmission of the described portable music player interface controller to described one or more loud speakers.

15. wireless device as claimed in claim 14, wherein said interface controller is further configured to communicate by letter with the autonomous controller that is coupled to described bus, and wherein said wireless device further comprises wireless launcher, described wireless launcher is configured to communicate by letter with described portable music player with described wireless protocols, respond communicating by letter between described interface controller and the described autonomous controller, can remote control from the described audio frequency of described portable music player.

16. wireless device as claimed in claim 15, wherein said interface controller is further configured to communicate by letter with described autonomous controller, can volume, balance and the equilibrium of the described audio frequency of remote control from described portable music player to described one or more loud speakers at least one.

17. wireless device as claimed in claim 15, wherein said interface controller is further configured to communicate by letter with described autonomous controller, one or more functions that can the described audio frequency of remote control from described portable music player to described one or more loud speakers, wherein said function comprise stop audio frequency, suspend audio frequency, the audio frequency that advances, audio frequency and skip the part of described audio frequency falls back.

18. wireless device as claimed in claim 14, wherein said interface controller is further configured that request is transferred to autonomous controller, so that described audio frequency is transferred to described one or more loud speaker from described portable audio player.

Receive signal 19. wireless device as claimed in claim 18, wherein said interface controller are further configured to respond described request and judge whether and based on described signal described audio transmission is arrived described one or more loud speakers.

20. wireless device as claimed in claim 18, wherein said interface controller is further configured to respond described request and receives signal and judge whether to transfer signals to the radio that is coupled to described bus based on described signal, and wherein the described signal by described interface controller transmission is configured so that described radio can be controlled the described audio frequency from described portable electronic device to described one or more loud speakers.

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