CN1569518A - Burglarproof multifunctional automobile sound system and potable network digital audio format broadcasting device thereof - Google Patents
Burglarproof multifunctional automobile sound system and potable network digital audio format broadcasting device thereof Download PDFInfo
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Abstract
The invention discloses an anti-burglary multi-functional car sound system and the portable network digital audio format player. The sound system includes two parts: a primary part and a fixing part, the primary part is the control center of the whole system, and which is a movable part that it can be connected or separated with the car sound fixing part; the fixing part is sound device fixed on the car, the primary part and the fixing part are connected to communication connector arranged on the two parts. When the primary control part is separated form the fixing part, the invention can act anti-burglary function because the primary control part can be separated from the car, and the primary control part becomes a portable network digital audio frequency format player with data memory, it can be used as amusement, and it can be used to store each kind of data.
Description
Technical field
The present invention relates to a kind of car audio system and network digital audio format playing device thereof, particularly a kind of theft-proof network digital audio frequency is play car audio system and portable network digital audio format playing device thereof.
Background technology
Along with improving constantly of people's income, car owners' troop grows stronger day by day, and people have got more and more for doting on degree of concern of auto audio equipment.The music of CD, MP3 file layouts such as (Audio LayerIII) all with CD as storage medium, read the dish machine by CD and play.In the use they to have weak point be that shockproof properties is poor.To imprint CDs as the storage medium of music, advantages such as storage content is big though it has, convenience, cheapness are subjected to the restriction of automobile itself and automobile running condition, and automobile vibrations under steam cause easily and can't read dish usually, cause the laser head wearing and tearing, even read to coil the machine physical damage.
Universal day by day along with network technical development and flash memory technology occurred utilizing flash memory to be used as the PA-system of storage medium, as the MP3 player on the market.Utilize flash memory to be used as storage medium, the auto audio equipment of playing network digital audio format substitutes the CD player, when maximum benefit is to play music, electrical characteristics during Card Reader, be not subjected to the vibrations in the vehicle traveling process, the influence of jolting fully, automobile CD can not occur and play machine-readable dish failure phenomenon.
Just because the environment for use of auto audio equipment is abominable, as reasons such as the cold and hot variation of temperature, vibration, humidity and dust, make the family expenses sound equipment that auto audio equipment is common relatively, design aspect is more complicated, and price is costliness relatively also.Just because of high-grade auto audio equipment price is comparatively expensive, it also becomes robber's target.Now, auto audio equipment was installed on the automobile more on the market, and the driver generally can not arbitrarily move.But when the driver get off leave after, the thief just can take advantage of the occasion will be installed on to steal after the whole sound system dismounting on the automobile, makes the car owner suffer heavy losses.
Summary of the invention
At the problem of the theftproof performance difference of auto audio equipment, main purpose of the present invention is to provide a kind of car audio system with anti-theft feature.
Theft-proof multi-purpose vehicle(MPV) sound system provided by the invention, mainly comprise main control part 1 and fixed part 2, main control part 1 is the control hinge of this hoot device running, and is the moving part that can be connected or separate with the fixed part 2 of car audio system; Fixed part 2 is the acoustical equipments that are fixed on the automobile, and main control part 1 is connected by placing two-part a pair of communication connector 3 respectively with fixed part 2, wherein,
DAB microprocessor 10, it comprises internal memory 101, is used for the kernel software of memory system operation; Demoder 102 is used for the decoding of diverse network digital audio format;
HSSI High-Speed Serial Interface 103 is used for and the outside various data that comprise network digital audio format file that exchange;
General input and output (GPIO) interface 104, it is used for the control of input and output signal;
Main control part button knob 15 is used for main control part 1 and separates the button operation of back when using separately with fixed part 2;
Sound signal digital-to-analogue/modulus format conversion and driving circuit 12, be used between the digital and analog signaling conversion and to the driving function of earphone output signal;
Built-in bulk memory 11 is used for storage package includes network digital audio format file in interior data;
Built-in power 17, the power supply when being used to provide main control part 1 to use separately;
Electric power management circuit 16 is used for providing suitable power supply to main control part 1;
Earphone jack 13;
Wherein, HSSI High-Speed Serial Interface 103, GPIO interface 104, sound signal digital-to-analogue/modulus format conversion and driving circuit 12, built-in bulk memory 11, electric power management circuit 16 connect DAB microprocessor 10 respectively; Main control part button knob 15 connects GPIO interface 104; Built-in power 17 connects electric power management circuit 16; Earphone jack 13 connects sound signal digital-to-analogue/modulus format conversion and driving circuit 12.
Described fixed part 2 comprises:
Radio reception circuit 21, loudspeaker 22, fixed display panel 24, automobile fixed panel button knob 25, analogue audio frequency power amplifier 26 and vehicle power 27; Wherein GPIO interface 104 connects radio reception circuit 21, fixed display panel 24, automobile fixed panel button knob 25 respectively; Sound signal digital-to-analogue/modulus format conversion and driving circuit 12 connect simulation audio-frequency power amplifier 26, radio reception circuit 21 and earphone jack 13 respectively; Analogue audio frequency power amplifier 26 also connects loudspeaker 22; Electric power management circuit 16 also connects power supply 27 in the car.
Another object of the present invention is to provide a kind of portable network digital audio format playing device with data memory.
When the main control part 1 of car audio system of the present invention separated with automobile fixed part 2, main control part 1 itself just independently became the portable network digital audio format playing device of a band data memory.It comprises:
DAB microprocessor 10, it comprises internal memory 101, is used to store the kernel software of playing device operation; Demoder 102 is used for the decoding of diverse network digital audio format;
HSSI High-Speed Serial Interface 103 is used for and the outside various data that comprise network digital audio format file that exchange;
General input and output (GPIO) interface 104, it is used for the control of input and output signal;
Main control part button knob 15 is used for described device is carried out setting operation;
Sound signal digital-to-analogue/modulus format conversion and driving circuit 12, be used between the digital and analog signaling conversion and to the driving function of earphone output signal;
Built-in bulk memory 11 is used for storage package includes network digital audio format file in interior data;
Built-in power 17, the power supply when being used to provide this network digital audio format playing device to use;
Electric power management circuit 16 is used for to the suitable power supply of network digital audio format playing device;
Earphone jack 13;
Wherein, HSSI High-Speed Serial Interface 103, GPIO interface 104, sound signal digital-to-analogue/modulus format conversion and driving circuit 12, built-in bulk memory 11, electric power management circuit 16 connect DAB microprocessor 10 respectively; Main control part button knob 15 connects GPIO interface 104; Built-in power 17 connects electric power management circuit 16; Earphone jack 13 connects sound signal digital-to-analogue/modulus format conversion and driving circuit 12.
It is Liquid Crystal Display (LCD) (LCD) that the fixed display panel 24 of the fixed part 2 of car audio system of the present invention one of is selected preferably, can also select other as light-emitting diode as fixed display panel; The built-in high-power memory device 11 of main control part 1 of the present invention can be selected flash memory, also can select as memory devices such as EEPROM.Reasonable selection is to adopt flash memory as built-in high-power memory device 11; The HSSI High-Speed Serial Interface 103 that is connected usefulness with PC can be selected USB interface or IEEE1394 interface etc.In embodiments of the present invention, preferably adopting Liquid Crystal Display (LCD) LCD is that fixed display panel 24, flash memory are that built-in high-power memory device 11, USB interface are HSSI High-Speed Serial Interface 103.Therefore, car audio system of the present invention can become the car audio system of a band flash memory, when main control part separates with automobile, just becomes independently the portable network digital audio format playing device with flash memory.
Description of drawings
Description of drawings of the present invention is as follows:
Fig. 1 is a car audio system structural representation of the present invention.
Fig. 2 is the signal schematic representation of the communication connector 3 of car audio system of the present invention.
Fig. 3 is main control part of the present invention 1 diagram of circuit when being connected with PC.
Fig. 4 is the diagram of circuit that main control part 1 of the present invention and fixed part 2 fuse and use.
Fig. 5,6, the 7th, the block scheme of car audio system of the present invention and portable network digital broadcast device part embodiment.
The specific embodiment
Below in conjunction with the embodiment shown in the accompanying drawing the present invention is described in further details:
The main structure scheme drawing of car audio system of the present invention as shown in Figure 1.
In system of the present invention, main control part 1 just requires plug component to lack as much as possible as mobilizable plug and play mode.Main control part 1 plug component of the present invention has only two, the one, HSSI High-Speed Serial Interface 103, for example USB interface is used with external device (for example PC) and is exchanged various data, comprises the various data of the diverse network digital audio format file of existing and following appearance.The 2nd, and communication connector 3 between the fixed part 2.
Realize the technical scheme of communication connector 3 about the present invention:
Its main control part 1 of car audio system of the present invention mainly comprises with the communication connector 3 of fixed part 2: the interface and the power interface of the interface of display panel, radio reception circuit.Also can increase the interface of other functions as required, as the CD playback interface.
In the embodiment shown in fig. 5, the main control part 1 of this embodiment car audio system comprises:
DAB microprocessor 10, it comprises internal memory 101, demoder 102 and usb 1 03, GPIO interface 104, main control part button knob 15, sound signal digital-to-analogue/modulus format conversion and driving circuit 12, flash memory 11, built-in power 17, electric power management circuit 16 and earphone jack 13;
The fixed part 2 of this embodiment comprises: radio reception circuit 21, loudspeaker 22, LCD24, automobile fixed panel button knob 25, analogue audio frequency power amplifier 26 and vehicle power 27.
These two parts connect by placing two-part a pair of communication connector 3 respectively, wherein, and the design of the interface of relevant radio reception circuit:
Car audio system as shown in Figure 5, its radio reception circuit 21 comprises digital phase-locked loop frequency combiner circuit 211, is used for the selected frequency of radio station of receiving.DAB microprocessor 10 can be controlled by the digital phase-locked loop frequency combiner circuit 211 of 104 pairs of radio reception circuit 21 of GPIO interface.This radio reception circuit 21 adopts the frequency-shift keying formula, and tunable receiver circuit 212 is used to receive the broadcast singal in the radio station of receiving, and selects different radio station by the difference of divider ratio; And audio output 213, being used for output audio signal, digital phase-locked loop frequency combiner circuit 211 connects GPIO interface 104, and audio output 213 connects sound signal digital-to-analogue/modulus format conversion and driving circuit 12.
The computer-control bus CCB of digital phase-locked loop frequency combiner circuit 211 (ComputerControl Bus) is by GPIO interface 104 controls of DAB microprocessor 10.Four line: CE of CCB bus requirements, CL, DI, DO finish the transmission of divider ratio.In addition, also need following basic control signal.
SW1: automatic sweep forward
SW2: automatic sweep backward
SW3: manually+
SW4: manually-
When channel selection, DAB microprocessor 10 passes to digital phase-locked loop frequency combiner circuit 211 to divider ratio by the DI port.After the locking, digital phase-locked loop frequency combiner circuit 211 is gone into DAB microprocessor 10 to locking frequency from the DO oral instructions, and DAB microprocessor 10 is given the online demonstration of LCD24 of automobile fixed part this divider ratio.
The design of relevant automobile immobile liquid crystal display LCD24 interface:
LCD24 has adopted the GPIO pattern, carries out communication by GPIO interface 104 and DAB microprocessor 10, is used to show with network digital audio format playing device play the information relevant with radio reception.For example, when playing MP3, show the MP3 song names of being play, the time, the progress of broadcast and capacity of cell can show that also some little animations cooperate MP3 to play.When receiving broadcasting, show the frequency range and the strong and weak expression of radio reception signal at radio reception place.By the setting of software, can show that also some little animations cooperate AM/FM radio reception, reach visual effect.
This universal serial bus is made of SCLK and the SID of Fig. 2, and wherein SCLK is the serial data clock, and SID is a serial data.The LCD24 telltale is the Chinese liquid crystal graphic dot matrix module that carries character library.By the position in the Chinese character place character library of serial input needs demonstration, realize showing the function of Chinese character.
In addition, selectively, increased a built-in Liquid Crystal Display (LCD) LCD14 at main control part 1, this built-in LCD14 is by GPIO interface 104 and DAB microprocessor 10 parallel communications.At this moment, Chinese character or graphics memory are in internal memory 11.When main control part 1 is removed when using separately as portable network digital audio format playing device, have independent LCD, just conveniently browse relevant information in play content.As shown in Figure 6.
The design of relevant automobile fixed panel button knob interface:
Automobile fixed panel button knob 25 carries out communication by GPIO interface 104 and DAB microprocessor 10.In addition, the also shared GPIO interface 104 of main control part 1 button knob 15 carries out communication with DAB microprocessor 10.This part button sends incident to DAB microprocessor 10 with interrupt mode, and DAB microprocessor 10 calls corresponding interrupt routine executable operations according to different interruptions.
In addition, also having electric power starting button and a pulse potential device to carry out volume on the panel regulates.The volume of this pulse potential device volume adjusting and movable part+, volume-adjusting is different.The former regulates analogue audio frequency power amplifier 26, and the latter is the program of regulating DAB microprocessor 10, realizes the change of volume.
For the design of the button of panel,, can after the most basic function, add function button again according to desired function expansion.
The design of relevant power interface:
About the power interface administrative section, native system main control part 1 adopts the 3.3V power supply, and two kinds of power supply modes are arranged.After taking out from fixed part 2, remain an independently network digital audio format playing device, adopt built-in power 17 power supplies of main control part 1.When inserting automobile fixed part 2, adopt power supply 27 power supplies in the automobile car.Be fixed in the radio reception part on the automobile, directly by 27 power supplies of power supply in the automobile car.
Built-in power 17 adopts the chargeable battery of two kinds of form: 1.5V or the disposable dry storage battery of 1.5V.When adopting built-in power 17 power supplies, when promptly main control part 1 worked independently as the portable network audio playing apparatus, the cell pressure of 1.5V converted the operating voltage of 3.3V to through a DC-DC voltage conversion circuit.
The mode that chargeable battery combines with disposable dry storage battery is very easy to use for main control part 1.When rechargeable battery does not have electricity, or when not using auto audio equipment for a long time, just can use dry storage battery that power supply is provided.
When main control part 1 inserts automobile, by the charge circuit of main control part 1 in-to-in electric power management circuit 16, with automobile provide+the 12V power supply charges automatically, till being full of.
Fig. 2 is the concrete main control part 1 and the signal schematic representation of fixed part 2 bonded assembly communication connectors 3.Wherein+and 12v is used to provide power supply, CE, and CL, DI, DO is a serial interface, is used to control radio receiver frequency modulation.Four button SW0-SW3 are used for the control command of relative users.Two other NC is as keeping mouth, and expansion is in the future used.
About this car audio system, the mster-control centre of this hoot device running that its main control part 1 is whole sound system, when its be again an independent portable network digital audio format file playing device that has memory function after fixed part 2 separates, as the MP3 player of band flash memory.
Shown in Figure 3 is the diagram of circuit of main control part 1 when being connected with PC by USB interface.Wherein the technical scheme of software section comprises:
1. upload/download network digital audio format file from PC
When the USB device interface 103 of main control part 1 being inserted in the USB interface of PC (need install driver for Win98, and Win2000 or Winxp or higher category then not needing install driver on PC again).WINDOWS at first finds a new equipment, again by solidifying the keyword that USB drive software in main control part 1 DAB microprocessor 10 comes reading device, after confirming as a movable flashing, Windows promptly installs the corresponding driving program and comes initialization communicating to connect each other.At this moment, finished communication protocol between main control part 1 and the PC.
Car audio system main control part 1 of the present invention is as network digital audio format playing device, adopting flash memory is storage medium and USB interface, this demoder 102 can be at present popular diverse network digital audio format as the data decode of MP3, MP3Pro, WMA, Ogg Vorbis, and can upgrade by network, to the data decode of the new digital audio format that occur future.
Be that example describes below with the MP3 format.When the user will read-out information be to PC from the flash memory 11 of main control part 1, carry out following steps:
A. the user gives operation of reading of PC;
The operating system of b.PC machine is sent out " read operation " and is given bsp driver;
C. bsp driver is given to solidify in DAB microprocessor 10 in-to-in USB drive programs and is sent " read request ";
D. solidify in DAB microprocessor 10 in-to-in USB drive programs responses " read request ", and give the PC bsp driver packing of the data in the flash memory 11 taking-up;
F. last drive program is given upper strata operating system data packet.
Finished like this and from flash memory 11, read required network digital audio format data.
When the user will write the file on the PC flash memory 11 of native system main control part 1,
A. the user gives one of PC " write operation ";
The operating system of b.PC machine is sent out " write operation " and is given drive program;
C. drive program is sent out " write request " and is given DAB microprocessor 10;
D. flash memory 11 protections, the USB program curing refusal response " write operation " of DAB microprocessor 10.Otherwise response " write operation ".
E. drive program receives that " write operation " allows, and the data that transmit from upper strata operating system of then packing are given flash memory 11.
F. the USB solidification software of DAB microprocessor 10 is untied the data of packing and is stored in the flash memory 11.When capacity is not enough, send misinformation, end the request of transmitting.Otherwise sending transmission success responds.
G.PC drive program responding digital audio frequency microprocessor 10 is asked accordingly, passes to upper strata operating system, is for further processing.
The read-write operation of top PC and movable equipment memory device is followed the general-duty usb protocol, comprises 1.0,1.1,2.0 versions.
2. radio reception receives
Flow process as shown in Figure 4, main control part 1 inserted in car audio system fixed part 2 after, energized then enters system's auto-initiation.After initialization is finished, judging current selected broadcast mode, is MP3 or function of radio receiver.
A. function of radio receiver
Play and be stored in the program in indicated radio station in the memory device last time or carry out channel selection.
When the customer requirement channel selection, there is dual mode to carry out.One, channel selection automatically.Its two, manually channel selection.
Automatically during channel selection, the operation of carrying out by automobile fixed panel button knob 25 notices.DAB microprocessor 10 sends initial divider ratio to digital phase-locked loop frequency combiner circuit 211 by the DI of CCB interface, and digital phase-locked loop frequency combiner circuit 211 increases divider ratio automatically according to channel selection selection automatically.Digital phase-locked loop frequency combiner circuit 211 produces concussion and selects frequency to give tunable receiver circuit 212, when tunable receiver circuit 212 receives place frequency band signal when very strong, represent that this band frequency has the radio station, send " locking " signal and give digital phase-locked loop frequency combiner circuit 211, give digital phase-locked loop frequency combiner circuit 211 otherwise send out " non-locking " signal.Digital phase-locked loop frequency combiner circuit 211 is current divider ratio and whether lock signal and send to DAB microprocessor 10 by the DO mouth.DAB microprocessor 10 is handled divider ratio and is passed through the online demonstration of LCD24.
Manually during channel selection, whenever by once manually adding, subtract button, 10 of DAB microprocessors add or deduct 0.1khz (for FM) or 9hz (for AM) on current divider ratio.Give digital phase-locked loop frequency combiner circuit 211 altered divider ratio by the DI port of CCB, on LCD24, show current frequency simultaneously.This divider ratio frequency division of digital phase-locked loop frequency combiner circuit 211 usefulness, and send the mixing of tunable receiver circuit the gained frequency.Select sound signal after the mixing and send sound signal digital-to-analogue/modulus format conversion and driving circuit 12 by audio input end 213, like this then finished the most basic function of radio receiver.
3. the network digital audio file is play
No matter be as car audio system, still as independent portable network digital audio playback device, realize that the function that the network digital audio file is play all is to be finished by main control part 1, during only as independent portable network digital audio playback device, the power supply of this playing device is by its built-in power 17 power supplies; And when inserting automobile as car audio system, by 27 power supplies of automotive interior power supply.Based on this, only set forth the working process of main control part 1 on automobile, independent portable network digital audio playback device working process is actually a function subset as car audio system.To play MP3 is example, when selecting to use MP3 to play, carries out following operation:
A. the default setting after the 10 use initialization of DAB microprocessor at first reads the MP3 format file in DAB microprocessor 10 from flash memory 11;
B. DAB microprocessor 10 extracts the MP3 format data flow again from internal memory 101, carries out decompress(ion), is reduced into sound signal, and with IIS (Inter-IC Sound) serial form outputting digital audio microprocessor 10;
C. sound signal digital-to-analogue/modulus format conversion and driving circuit 12 receive the IIS format audio data flow that DAB microprocessor 10 is sent here, and digital to analog conversion becomes analog signal to send to earphone jack 13 or 22 playbacks of analogue audio frequency power amplifier 28 steam supply car loudspeaker.
D. when the outside has MP3 control key-press event to take place, because different buttons is corresponding to different interrupt control routines, DAB microprocessor 10 calls different interrupt control routines according to different buttons.The execution that the F.F. interrupt routine is ended current task is called in for example button F.F., DAB microprocessor 10, extracts next MP3 format file and go in the internal memory 101 of DAB microprocessor 10 from flash memory 11, repeats the flow process of above-mentioned a. to c..Rewind down and F.F. are in like manner.The button volume adds, and when subtracting, continues to carry out current operation, only voice data is moved to left or moves to right to satisfy the function of volume plus-minus.The circulation button then is after last first song, next to first open from first and begin to continue to get the MP3 audio file in getting flash memory 11.
The theft-proof multi-purpose vehicle(MPV) sound system of the present invention can add more according to actual needs, and multitone rings equipment.Be illustrated in figure 6 as the block scheme of another embodiment of this car audio system.This embodiment has increased microphone 23 at fixed part 2 on as Fig. 5 architecture basics, microphone 23 is connected with sound signal digital-to-analogue/modulus format conversion and driving circuit 12, is used to the broadcast purposes that amplifies.Increased a built-in Liquid Crystal Display (LCD) LCD14 at main control part 1, the also shared GPIO interface 104 of this built-in LCD14 carries out communication with DAB microprocessor 10.When main control part 1 is removed when using as portable network digital audio format playing device, have independent LCD, conveniently browse the relevant information of in progress content.
Figure 7 shows that the another embodiment block scheme of this car audio system.This embodiment has increased CD Player on architecture basics as shown in Figure 6.This embodiment has increased CD control interface 105 and IIS CD sync cap 106 for realizing the CD Player function at main control part 1, has increased CDROM data readout setup 28 at fixed part 2.DAB microprocessor 10 can be realized being fixed on the control and the processing of the CDROM data readout setup 28 in the car by these two interfaces.CD control interface 105 responds outside " transmission " order by a serial delivery port, and the serial input port is used for " reading " command response.But IISCD sync cap 106 is microprocessor access modules.It can be handled CDROM data and CD audio frequency from the IIS module.Data can resolve to the synchronization frame form, transmit in the write memory by DMA (Direct Memory Access) after deciphering.
The car audio system of realizing by method provided by the invention has following radical function:
The first, car audio system of the present invention is because there has been movable main control part, and the driver carries can very easily this part and automobile fixed equipment being separated before car, as portable network digital audio format playing device independently.And other acoustical equipments in the car since lack main control part control and can't normal operation, thereby make the flash gentry prestige machine heave a sigh, can effectively solve the antitheft problem of auto audio equipment.
Second, portable network digital audio-frequency playing equipment and auto audio equipment are combined, can be with flash memory as storage medium, on automobile, realize reaching now the playing function of the following diverse network digital audio format that occurs, when playing music, electrical characteristics during Card Reader are not subjected to the vibrations in the vehicle traveling process, the influence of jolting fully, thoroughly solve the against shock problem that data are read.
In addition, main control part in the car audio system of the present invention can be made the portable network digital audio format playing device (as the MP3 player) of a telotism, directly the music file of various forms is downloaded in online, support PC system file form simultaneously, can be used as flash memory power supply brain again and use.Its flash memory has very big compatibility, also is applicable to electronic products such as PDA, digital camera, DV simultaneously, has realized the integrated of the multifunction of car audio system and individual multiple amusement equipment.
Obviously, those skilled in the art can carry out various changes and distortion to car audio system of the present invention and not depart from the scope of the present invention.If these modifications and distortion belong within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and is out of shape interior.
Claims (18)
1, theft-proof multi-purpose vehicle(MPV) sound system, it is characterized in that: it comprises main control part 1 and fixed part 2, described main control part 1 is the control hinge of this hoot device running, and is the moving part that can be connected or separate with the fixed part 2 of car audio system; Described fixed part 2 is the acoustical equipments that are fixed on the automobile, and main control part 1 is connected by placing two-part a pair of communication connector 3 respectively with fixed part 2, wherein,
Described main control part 1 comprises:
DAB microprocessor 10, it comprises internal memory 101, is used for the kernel software of memory system operation; Demoder 102 is used for the decoding of diverse network digital audio format;
HSSI High-Speed Serial Interface 103 is used for and the outside various data that comprise network digital audio format file that exchange of this car audio system;
General input and output GPIO interface 104 is used for the control of input/output signal;
Main control part button knob 15 is used for main control part 1 and separates the back with fixed part 2 and main control part 1 is carried out setting operation when using separately;
Sound signal digital-to-analogue/modulus format conversion and driving circuit 12, be used between the digital and analog signaling conversion and to the driving function of earphone output signal;
Built-in bulk memory 11 is used for storage package includes network digital audio format in interior data;
Built-in power 17, the power supply when being used to provide main control part 1 to use separately;
Electric power management circuit 16 is used for providing suitable power supply to main control part 1;
Earphone jack 13;
Wherein, described HSSI High-Speed Serial Interface 103, GPIO interface 104, sound signal digital-to-analogue/modulus format conversion and driving circuit 12, built-in bulk memory 11, electric power management circuit 16 connect DAB microprocessor 10 respectively; Described main control part button knob 15 connects GPIO interface 104; Described built-in power 17 connects electric power management circuit 16; Described earphone jack 13 connects sound signal digital-to-analogue/modulus format conversion and driving circuit 12.
2, car audio system according to claim 1 is characterized in that: described fixed part 2 comprises:
Radio reception circuit 21, loudspeaker 22, fixed display panel 24, automobile fixed panel button knob 25, analogue audio frequency power amplifier 26 and vehicle power 27;
Described GPIO interface 104 connects radio reception circuit 21, fixed display panel 24 and automobile fixed panel button knob 25 respectively; Described sound signal digital-to-analogue/modulus format conversion and driving circuit 12 connect simulation audio-frequency power amplifier 26, radio reception circuit 21 and earphone jack 13 respectively; Described analogue audio frequency power amplifier 26 also connects loudspeaker 22; Described electric power management circuit 16 also connects power supply 27 in the car.
3, car audio system according to claim 2 is characterized in that: described fixed part 2 also comprises CDROM data readout setup 28; Described main control part 1 also comprises CD control interface 105 and IIS (Inter-IC Sound) CD sync cap 106, be used to realize the Play Control of CDROM data readout setup 28 and reading of data, described CDROM data readout setup 28 connects CD control interface 105 and IIS CD sync cap 106 respectively, and described DAB microprocessor 10 connects CD control interface 105 and IISCD sync cap 106 respectively.
4, car audio system according to claim 2 is characterized in that: described fixed part 2 also comprises microphone 23, and it is connected with sound signal digital-to-analogue/modulus format conversion and driving circuit 12.
5, car audio system according to claim 3 is characterized in that: described fixed part 2 also comprises microphone 23, and it is connected with sound signal digital-to-analogue/modulus format conversion and driving circuit 12.
6, according to optional described car audio system among the claim 1-5, it is characterized in that: described HSSI High-Speed Serial Interface 103 is USB interface or IEEE1394 interface, and described built-in bulk memory 11 is a flash memory.
7, according to optional described car audio system among the claim 2-5, it is characterized in that: the fixed display panel 24 of described fixed part 2 is Liquid Crystal Display (LCD) LCD or light-emitting diode; Described main control part 1 also comprises built-in Liquid Crystal Display (LCD) LCD 14, and it is connected with described GPIO interface 104.
8, according to optional described car audio system among the claim 1-5, it is characterized in that: described demoder 102 is mixtures of hardware logic electric circuit, software or hardware logic electric circuit and software.
9, according to optional described car audio system among the claim 2-5, it is characterized in that: described radio reception circuit 21 also comprises digital phase-locked loop frequency combiner circuit 211, is used for the selected frequency of radio station of receiving; Tunable receiver circuit 212 is used to receive the broadcast singal in the radio station of receiving; And audio output 213, be used for output audio signal, wherein said digital phase-locked loop frequency combiner circuit 211 connects described universal input/output interface 104, and described audio output 213 connects described sound signal digital-to-analogue/modulus format conversion and driving circuit 12.
10, according to optional described car audio system among the claim 1-5, it is characterized in that: described built-in power 17 is disposable dry storage battery or chargeable battery.
11, according to optional described car audio system among the claim 1-5, it is characterized in that: the network digital audio format file that it is used to play comprises MP3, MP3Pro, WMA and Ogg Vorbis form.
12, a kind of portable network digital audio format playing device, it is characterized in that: it comprises:
DAB microprocessor 10, it comprises internal memory 101, is used to store the kernel software of playing device operation; Demoder 102 is used for the decoding of diverse network digital audio format;
HSSI High-Speed Serial Interface 103 is used for and the outside various data that comprise network digital audio format file that exchange of this device;
General input and output GPIO interface 104 is used for the control of input/output signal;
Main control part button knob 15 is used for described device is carried out setting operation;
Sound signal digital-to-analogue/modulus format conversion and driving circuit 12, be used between the digital and analog signaling conversion and to the driving function of earphone output signal;
Built-in bulk memory 11 is used for the various files of storage package includes network digital audio format;
Built-in power 17, the power supply when being used to provide this network digital audio format playing device to use;
Electric power management circuit 16 is used for providing suitable power supply to network digital audio format playing device;
Earphone jack 13;
Wherein, described HSSI High-Speed Serial Interface 103, GPIO interface 104, sound signal digital-to-analogue/modulus format conversion and driving circuit 12, built-in bulk memory 11, electric power management circuit 16 connect DAB microprocessor 10 respectively; Described main control part button knob 15 connects GPIO interface 104; Described built-in power 17 connects electric power management circuit 16; Described earphone jack 13 connects sound signal digital-to-analogue/modulus format conversion and driving circuit 12.
13, portable network digital audio format playing device according to claim 12 is characterized in that: described HSSI High-Speed Serial Interface 103 is USB interface or IEEE1394 interface; Described built-in bulk memory 11 is a flash memory.
14, portable network digital audio format playing device according to claim 12 is characterized in that: also comprise built-in Liquid Crystal Display (LCD) 14, it is connected with described GPIO interface 104.
15, portable network digital audio format playing device according to claim 12, it is characterized in that: described demoder 102 is mixtures of hardware logic electric circuit, software or hardware logic electric circuit and software.
16, portable network digital audio format playing device according to claim 12 is characterized in that: described built-in power 17 is disposable dry storage battery or chargeable battery.
17, according to the portable network digital audio format playing device described in optional one of the claim 12-16, it is characterized in that: also comprise connector 3 parts that are connected with each described car audio system fixed part 2 among the claim 1-5 and the software that is used to control this car audio system.
18, portable network digital audio format playing device according to claim 17 is characterized in that: the network digital audio format file that it is used to play comprises MP3, MP3Pro, WMA and Ogg Vorbis form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA03139888XA CN1569518A (en) | 2003-07-14 | 2003-07-14 | Burglarproof multifunctional automobile sound system and potable network digital audio format broadcasting device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA03139888XA CN1569518A (en) | 2003-07-14 | 2003-07-14 | Burglarproof multifunctional automobile sound system and potable network digital audio format broadcasting device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1569518A true CN1569518A (en) | 2005-01-26 |
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ID=34470761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA03139888XA Pending CN1569518A (en) | 2003-07-14 | 2003-07-14 | Burglarproof multifunctional automobile sound system and potable network digital audio format broadcasting device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1569518A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332293A (en) * | 2011-07-22 | 2012-01-25 | 重庆长安汽车股份有限公司 | Vehicle-mounted digital music player |
| CN102545928A (en) * | 2011-12-19 | 2012-07-04 | 深圳市航盛电子股份有限公司 | WiMax (World-wide Interoperability for Microwave Access)-based vehicle-mounted radio device |
-
2003
- 2003-07-14 CN CNA03139888XA patent/CN1569518A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332293A (en) * | 2011-07-22 | 2012-01-25 | 重庆长安汽车股份有限公司 | Vehicle-mounted digital music player |
| CN102545928A (en) * | 2011-12-19 | 2012-07-04 | 深圳市航盛电子股份有限公司 | WiMax (World-wide Interoperability for Microwave Access)-based vehicle-mounted radio device |
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