CN202872986U - Double-input wireless high definition transmission system - Google Patents
Double-input wireless high definition transmission system Download PDFInfo
- Publication number
- CN202872986U CN202872986U CN 201220564903 CN201220564903U CN202872986U CN 202872986 U CN202872986 U CN 202872986U CN 201220564903 CN201220564903 CN 201220564903 CN 201220564903 U CN201220564903 U CN 201220564903U CN 202872986 U CN202872986 U CN 202872986U
- Authority
- CN
- China
- Prior art keywords
- module
- video
- audio
- receiver
- baseband
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Selective Calling Equipment (AREA)
Abstract
The utility model relates to a double-input wireless high definition transmission system, comprising a transmitter, a receiver and a remote controller, wherein the transmitter comprises orderly-connected audio and video reception module, baseband module and radio frequency module, and also comprises a main control module connected with the audio and video reception module and the baseband module; and the receiver comprises orderly-connected radio frequency module, baseband module and audio and video transmission module, and also comprises a main control module connected with the baseband module and the audio and video transmission module. The double-input wireless high definition transmission system only employs a high definition audio and video reception chip to realize from two high definition audio and video inputs to one decoded and converted selective output in a format of standard audio and video, thereby reducing the system complicity and the product cost.
Description
Technical field
The utility model relates to WirelessHD audio video transmission field, is specially a kind of dual input WirelessHD transmission system.
Background technology
The WirelessHD transmission system is the system that is specifically applied to the high resolution audio and video radio transmission apparatus, can be without compression, utmost point low delay transmission standard definition and high definition (reaching as high as 1080P) Audio and Video data.
Can support the WirelessHD transmission equipment of a plurality of input sources generally to adopt a matrix switching of increase chip before transmitter high resolution audio and video receiving chip on the Vehicles Collected from Market, switch chip by this matrix and realize that selection one tunnel outputs to the high resolution audio and video receiving chip from the input of multichannel audio-video frequency signal.But this scheme is switched chip owing to additionally increased matrix, has increased system complexity, and has caused the increase of corresponding product cost.
The utility model content
The technical problem that the utility model solves is to provide a kind of dual input WirelessHD transmission system, this system only uses a high resolution audio and video receiving chip, realization is input to the selection output of the rear standard pronunciation video format of one tunnel decoding conversion from the two-way high resolution audio and video, reduce system complexity and product cost, solved the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
A kind of dual input WirelessHD transmission system comprises transmitter, receiver and remote controller.Described transmitter comprises successively audio frequency and video receiver module, baseband module and the radio-frequency module that connects, and also comprises with described audio frequency and video receiver module being connected the main control module that is connected with baseband module; Described receiver comprises successively radio-frequency module, baseband module, the audio frequency and video sending module that connects, and also comprises with described baseband module being connected the main control module that is connected with the audio frequency and video sending module.
In the utility model, described audio frequency and video receiver module be one with the high resolution audio and video receiving chip of two HDMI interfaces, support the input of two-way HDMI signal.The main control module of described transmitter links to each other with button.
Beneficial effect
The utility model only uses a high resolution audio and video receiving chip, realizes being input to from the two-way high resolution audio and video selection output of the rear standard pronunciation video format of one tunnel decoding conversion, has reduced system complexity and product cost.
Description of drawings
Fig. 1 is a kind of structural representation of dual input WirelessHD transmission system.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1, a kind of structural representation of dual input WirelessHD transmission system, a kind of dual input WirelessHD transmission system comprises transmitter 8, receiver 9 and remote controller 7.Described transmitter 8 comprises successively audio frequency and video receiver module 4, baseband module 2 and the radio-frequency module 3 that connects, and also comprises with described audio frequency and video receiver module 4 being connected the main control module 1 that all is connected with baseband module; Described receiver 9 comprises successively radio-frequency module 3, baseband module 2, the audio frequency and video sending module 6 that connects, and also comprises with described baseband module 2 being connected the main control module 1 that all is connected with the audio frequency and video sending module.Described audio frequency and video receiver module 6 is one and supports the input of two-way HDMI signal with the high resolution audio and video receiving chip of two HDMI interfaces that additionally do not increase matrix and switch chip, the main control module 1 of described transmitter links to each other with button 5.
Workflow of the present utility model following (having exemplified a kind of application scenario): high resolution audio and video broadcast source such as DVD, high definition set top box transfer to transmitter with audio, video data by the HDMI interface, transmitter through after the inter-process with audio-video signal with the mode wireless transmission without compression, receiver receives and by the HDMI interface original audio, video data is transferred to high definition display device (such as HDTV, projecting apparatus) after wireless data and inverse process are processed and show.The user can select the two-way broadcast source riches all the way to give receiver by the button that is arranged in transmitter; Or by sending order to receiver with Infrared remote controller, by receiver guidance command is returned to transmitter, realize selecting the broadcast source transmission of a certain road.
Transmitter audio frequency and video receiver module is a high resolution audio and video receiving chip, support two-way high resolution audio and video signal (such as HDMI) input, by main control module this chip configuration is realized outputting standard form audio-video signal (such as digital rgb video and I2S audio frequency) is decoded and format conversion in the input of a certain road.Then by baseband module and radio-frequency module audio-video signal is sent to receiver, the audio frequency and video receiver module can adopt a HDMI receiving chip CAT6023 to realize.
Transmitter high resolution audio and video receiving chip and main control module by control bus (such as I
2C) connect, main control module is communicated by letter with the audio frequency and video receiving chip by control bus and it is configured, and realizes the controls such as two-way audio frequency and video switching.The transmitter main control module can respond two kinds of user operation commands the audio frequency and video input channel is switched: one uses button on the transmitter for the user, one operates receiver for the user uses Infrared remote controller, receiver returns to transmitter with guidance command, the audio frequency and video input channel is switched after transmitter receives orders again.Transmitter namely only sends one road audio-video signal to receiver after switching.
As mentioned above, sender signal flow process of the present utility model is as follows: outside two-way audio frequency and video input source inputs to HDMI receiving chip CAT6023 by two HDMI interfaces with the HDMI signal, output one road rgb video and I2S audio frequency after process through two AFE (analog front end), the processing of bag data, restored audio clock, color space conversion, lifting sampling etc. CAT6023 inside.Main control module passes through I
2The register of C bus configuration CAT6023 is realized the alternative to two the AFE (analog front end) output in its inside data, thereby realizes the alternative of two-way HDMI input signal is processed.The alternative switching command of main control module comes from: 1, directly respond key commands; 2, the receiver passback infrared remote control command of coming, this guidance command sends the transmitter radio-frequency module to by radiofrequency signal and processes, and the output baseband signal is also processed through baseband module, and baseband module is again by control signal notice main control module.
In the utility model, the signal flow of receiver is as follows: radio-frequency module receives radiofrequency signal and processes, the output baseband signal, baseband signal is processed output rgb video and I2S audio frequency through baseband module, and this audio-video signal sends to display device with the HDMI signal again and shows after the audio frequency and video sending module is processed.Main control module is communicated by letter with the audio frequency and video sending module with baseband module by control signal.Main control module can respond infrared remote control command, guidance command is sent to baseband module by control signal, baseband module sends to radio-frequency module after being converted to baseband signal, sends to transmitter by radio-frequency module with radiofrequency signal and processes, and realizes the switching transmission to two audio frequency and video broadcast source.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model; the technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. dual input WirelessHD transmission system, comprise transmitter, receiver and remote controller, it is characterized in that, described transmitter comprises successively audio frequency and video receiver module, baseband module and the radio-frequency module that connects, and also comprises with described audio frequency and video receiver module being connected the main control module that is connected with baseband module; Described receiver comprises successively radio-frequency module, baseband module, the audio frequency and video sending module that connects, and also comprises with described baseband module being connected the main control module that is connected with the audio frequency and video sending module.
2. a kind of dual input WirelessHD transmission system according to claim 1 is characterized in that, described audio frequency and video receiver module be one with the high resolution audio and video receiving chip of two HDMI interfaces, support the input of two-way HDMI signal.
3. a kind of dual input WirelessHD transmission system according to claim 1 and 2 is characterized in that the main control module of described transmitter links to each other with button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220564903 CN202872986U (en) | 2012-10-31 | 2012-10-31 | Double-input wireless high definition transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220564903 CN202872986U (en) | 2012-10-31 | 2012-10-31 | Double-input wireless high definition transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202872986U true CN202872986U (en) | 2013-04-10 |
Family
ID=48039667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220564903 Expired - Fee Related CN202872986U (en) | 2012-10-31 | 2012-10-31 | Double-input wireless high definition transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202872986U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872681A (en) * | 2017-10-26 | 2018-04-03 | 杭州雄迈集成电路技术有限公司 | A kind of device and method using composite video signal base band transmission audio signal |
| CN110189511A (en) * | 2019-05-24 | 2019-08-30 | 深圳市朗强科技有限公司 | A kind of signal receiving device, wireless transmitting system and signal switching method |
-
2012
- 2012-10-31 CN CN 201220564903 patent/CN202872986U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872681A (en) * | 2017-10-26 | 2018-04-03 | 杭州雄迈集成电路技术有限公司 | A kind of device and method using composite video signal base band transmission audio signal |
| CN110189511A (en) * | 2019-05-24 | 2019-08-30 | 深圳市朗强科技有限公司 | A kind of signal receiving device, wireless transmitting system and signal switching method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202907110U (en) | Split type television and control box applied to same | |
| TWI486028B (en) | Split television and host thereof | |
| CN201608820U (en) | Audio/video control system for large-scale LED display screen | |
| US10262626B2 (en) | Electronic interactive system and setting method thereof | |
| CN101252637A (en) | Combined digital set top boxes based on software radio | |
| CN201717963U (en) | Wireless high-definition video transmission system receiver | |
| CN104486576A (en) | Conversion system converting full-interface input signals to SDI output signals | |
| CN103491401A (en) | Method and system for controlling intelligent terminal through vehicle-mounted system | |
| CN102263998A (en) | Receiving method and device for digital television | |
| CN205693774U (en) | Video guide's equipment | |
| CN201607923U (en) | LED video processing and amplifying integration control device | |
| CN202872986U (en) | Double-input wireless high definition transmission system | |
| CN201742482U (en) | Transmitter of wireless high definition video transmission system | |
| CN203015039U (en) | Wireless audio-and-video signal transmission device | |
| CN206004794U (en) | WiFi is wirelessly transferred with screen device | |
| CN2938639Y (en) | TV receiver with DVB-T digital signal receiving function | |
| CN103997677A (en) | Audio and video play method and play device | |
| CN202907109U (en) | Bus of split type television | |
| CN201623792U (en) | LED display screen audio-video control device and LED display screen | |
| CN103037222A (en) | Compression transmission device and method of parallel digital video signal | |
| CN105516757B (en) | A kind of Z-operation system intelligent radio display system detached with intelligent use system | |
| CN102883198A (en) | Bus of split-type television | |
| CN114095669A (en) | Multi-input multi-output video bridging chip | |
| CN201054689Y (en) | A multi-media receiving video/audio terminal | |
| CN202261570U (en) | Two-in-one display apparatus of computer and set-top box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20141031 |
|
| EXPY | Termination of patent right or utility model |