CN201655249U - Integrated audio/video controller for LED display - Google Patents
Integrated audio/video controller for LED display Download PDFInfo
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- CN201655249U CN201655249U CN2009202621576U CN200920262157U CN201655249U CN 201655249 U CN201655249 U CN 201655249U CN 2009202621576 U CN2009202621576 U CN 2009202621576U CN 200920262157 U CN200920262157 U CN 200920262157U CN 201655249 U CN201655249 U CN 201655249U
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Abstract
The utility model discloses an integrated audio/video controller for an LED display, comprising an audio/video and input control interface (30), an audio/video processing module (31), an audio/video output interface (32), an FPGA (Programmable Gate Array) processor (33), a parallel-series conversion chip (35) and a transmission module (36), wherein the audio/video and input control interface (30), the audio processing module (31) and the audio/video output interface (32) are sequentially connected; the FPGA processor (33) is used for processing high-definition audio/video data output by the audio/video processing module (31) into a high-frequency parallel data stream; and the transmission module (36) is used for remotely transmitting serial data to the LED display and connected between the parallel-series conversion chip (35) and the LED display. The utility model improves the video display quality and the system reliability, reduces the system construction cost and power consumption and has higher cost performance.
Description
Technical field
The utility model relates to a kind of Video Controller, especially relates to a kind of LED audio frequency and video processing controller with front end digital video image processor and rear end LED screen controller integrated setting.
Background technology
Large-scale high-resolution true color LED display has become the sign of modernization, internationalized city, it can play Word message, animated advertising, video image, thus day by day in advertisement, physical culture, traffic, finance, communication, commerce, all trades and professions such as perform in a radio or TV programme and be widely used.
The technological core of LED display is the LED display control system, and it comprises front end digital video image processor and rear end LED screen controller.The main task of rear end LED screen controller is to realize the demonstration of video information on the LED display media, and front end digital video image processor then plays crucial effects to the display quality of video information on the LED display media.
Front end digital video image processor is provided by different companies respectively with rear end LED screen controller at present, the front and back cascade, and its structure is as shown in Figure 1.Support the front end digital video image device 1 of various video inputs to comprise audio frequency and video processing module 11, DVI serializer 12 and DVI output interface 13, high quality digital signal after treatment and computer control signal are delivered to rear end LED screen control transmitter 2 by DVI output interface 13.Rear end LED screen control transmitter 2 comprises: DVI input port 21, DVI receiver 22, FPGA processor 23, buffer 24 are also gone here and there conversion chip 25 and optic module 26, the high quality digital signal of DVI input port 21, DVI receiver 22 inputs and computer control signal by FPGA processor 23 conversion process after, deliver to and go here and there conversion chip 25 and carry out and go here and there conversion, deliver to the LED display of far-end again by optic module 26.
This front and back stages structure, cost is higher comparatively speaking, and through the conversion of DVI two-stage, what have influenced video quality; Computing machine must carry out respectively the setting or the control of front end digital video image processor and rear end LED screen controller in addition, has the defective of control inconvenience.
The utility model content
The utility model proposes a kind of LED audio frequency and video processing controller,, improve display quality and be convenient to control with simplified system with front end digital video image processor and rear end LED screen controller integrated setting.
The utility model has adopted following technical scheme to realize: a kind of integrated audio frequency and video controller that is used for LED display, and it comprises:
Successively the audio frequency and video of Lian Jieing and control input interface 30, audio frequency and video processing module 31 and audio and video output interface 32;
Be used for the high-definition digital audio-video signal is converted to the FPGA processor 33 of high frequency parallel data stream, it connects the audio frequency and video processing module 31 of output high-definition digital audio frequency and video;
That be used for parallel data stream is converted to serial data and go here and there conversion chip 35, it connects FPGA processor 33;
Be used for the serial data remote transmission is given the transport module 36 of LED display, it is connected and goes here and there between conversion chip 35 and the LED display.
Wherein, the described integrated audio frequency and video controller that is used for LED display also comprises the storer 34 that connects FPGA processor 33.
Wherein, transport module 36 is optic module or gigabit networking interface.
Wherein, audio frequency and video and control input interface 30 comprise: audio frequency and video input interface 301, infrared input interface 302, button input interface 303 and computer bidirectional serial ports 304.
Wherein, calculating two-way serial ports 304 is RS-332 interface or USB interface.
Wherein, the audio and video output interface of audio and video output interface 32 is earphone, liquid crystal panel, HDMI/DVI or rgb interface, is used for audio-video monitoring, monitoring and loop output.
Compared with prior art, the utlity model has following beneficial effect:
The utility model is integrally combined front end digital video image processor and rear end LED screen control transmitter, has reduced the cost and the power consumption of LED display control system; Two plate in-one-boards have been cancelled DVI output input element, thereby have been reduced the loss of signal, have improved the display quality of signal; Computing machine is undertaken by a serial ports the setting or the control of front end digital video image processor and rear end LED screen controller, has improved application efficiency; Improve system reliability, had higher cost performance.
Description of drawings
Fig. 1 is conventional front end LED video processor and rear end led controller connection diagram;
Fig. 2 is the structural representation of the integral LED audio frequency and video processing controller that the utility model proposes.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 2 is the logical schematic of the utility model integral LED audio frequency and video processing controller 3.LED audio frequency and video processing controller 3 is used to control LED display, and it comprises: audio frequency and video and control input interface 30, audio frequency and video processing module 31, audio and video output interface 32, FPGA processor 33, be the storer 34 of SDRAM and the conversion chip 35 and be the transport module 36 of optic module or gigabit networking interface of going here and there.
Described audio frequency and video and control input interface 30 comprise: receive audio frequency and video input interface 301, infrared input interface 302, button input interface 303 and the computer bidirectional serial ports 304 of various analog/digital audio frequency and video inputs, wherein audio frequency and video input interface 301 comprises the DVI output interface of computer display card; And computer bidirectional serial ports 304 is RS-332 interface or USB interface, and computing machine (PC) is by these two-way serial ports 304 may command or set audio frequency and video processing module 31 and FPGA processor 33.
Described audio frequency and video processing section 31 is identical with the custom circuit of universal front end digital video image processor, comprises audio frequency and video input processing circuit, audio frequency processing circuit, video image processing circuit.Its audio frequency, liquid crystal, monitoring and loop video output to audio and video output interface 32, and high resolution audio and video and control signal output to FPGA processor 33.
Described audio and video output interface 32 is identical with the custom circuit of universal front end digital video image processor, comprises audio output interface, liquid crystal panel interface, VGA interface of monitor and HDMI/DVI loop audio and video output interface.
Described FPGA processor 33 is field programmable gate functions, the FPGA processor 23 that adopts in the general rear end LED screen control transmitter 2 among its function and Fig. 1 is identical, high resolution audio and video to input is done form and frequency transformation, and the embeddeding computer control signal outputs to and go here and there conversion chip 35.
Described storer 34 is connected with FPGA processor 33, as screen buffer.
Described and string conversion chip 35 adopts conventional chip, for example the Serdes chip of 1-3.125G or kilomega network PHY chip, finish the high frequency of FPGA processor 33 output datas and the conversion process of going here and there, its serial data outputs to transport module 36, by transport module 36 remote transmission to LED display.
To sum up, the utility model is integrally combined front end digital video image processor and rear end LED screen control transmitter, has reduced the cost and the power consumption of LED display control system; Two plate in-one-boards have been cancelled DVI output input element, thereby have been reduced the loss of signal, have improved the display quality of signal; Computing machine is undertaken by a serial ports the setting or the control of front end digital video image processor and rear end LED screen controller, has improved application efficiency; Improve system reliability, had higher cost performance.
What be necessary to illustrate is; though the utility model is described with reference to current embodiment; but those skilled in the art will be appreciated that; above-mentioned embodiment only is used for illustrating the utility model; be not to be used for limiting protection domain of the present utility model; any within spirit of the present utility model and principle scope, any modification of being done, equivalence are replaced, are improved, and all should be included within the rights protection scope of the present utility model.
Claims (6)
1. an integrated audio frequency and video controller that is used for LED display is characterized in that, comprising:
Successively the audio frequency and video of Lian Jieing and control input interface (30), audio frequency and video processing module (31) and audio and video output interface (32);
Be used for the high-definition digital audio-video signal is converted to the FPGA processor (33) of high frequency parallel data stream, it connects the audio frequency and video processing module (31) of output high-definition digital audio frequency and video;
That be used for parallel data stream is converted to serial data and go here and there conversion chip (35), it connects FPGA processor (33);
Be used for the serial data remote transmission is given the transport module (36) of LED display, it is connected and goes here and there between conversion chip (35) and the LED display.
2. according to the described integrated audio frequency and video controller that is used for LED display of claim 1, it is characterized in that, also comprise the storer (34) that connects FPGA processor (33).
3. according to the described integrated audio frequency and video controller that is used for LED display of claim 1, it is characterized in that transport module (36) is optic module or gigabit networking interface.
4. according to the described integrated audio frequency and video controller that is used for LED display of claim 1, it is characterized in that audio frequency and video and control input interface (30) comprising: audio frequency and video input interface (301), infrared input interface (302), button input interface (303) and computer bidirectional serial ports (304).
5. according to the described integrated audio frequency and video controller that is used for LED display of claim 4, it is characterized in that computer bidirectional serial ports (304) is RS-332 interface or USB interface.
6. according to the described integrated audio frequency and video controller that is used for LED display of claim 1, it is characterized in that the audio and video output interface of audio and video output interface (32) is earphone, liquid crystal panel, HDMI/DVI or rgb interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202621576U CN201655249U (en) | 2009-12-25 | 2009-12-25 | Integrated audio/video controller for LED display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202621576U CN201655249U (en) | 2009-12-25 | 2009-12-25 | Integrated audio/video controller for LED display |
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| CN201655249U true CN201655249U (en) | 2010-11-24 |
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| CN2009202621576U Expired - Fee Related CN201655249U (en) | 2009-12-25 | 2009-12-25 | Integrated audio/video controller for LED display |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184705A (en) * | 2011-02-21 | 2011-09-14 | 冉红 | LED (light emitting diode) display control system controlled by voice frequency |
| CN102254513A (en) * | 2011-07-14 | 2011-11-23 | 康佳集团股份有限公司 | Multifunctional control system for light-emitting diode (LED) display screen |
| CN103021340A (en) * | 2012-12-28 | 2013-04-03 | 西安诺瓦电子科技有限公司 | LED display screen control device |
| CN103903568A (en) * | 2014-04-24 | 2014-07-02 | 西安诺瓦电子科技有限公司 | Led display screen control card |
| CN109240634A (en) * | 2018-11-20 | 2019-01-18 | 宁波Gqy视讯股份有限公司 | The output node of distributed splice displaying system and distributed splice displaying system |
| CN114237544A (en) * | 2021-12-15 | 2022-03-25 | 北京百度网讯科技有限公司 | Audio input method and device, electronic equipment and storage medium |
-
2009
- 2009-12-25 CN CN2009202621576U patent/CN201655249U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184705A (en) * | 2011-02-21 | 2011-09-14 | 冉红 | LED (light emitting diode) display control system controlled by voice frequency |
| CN102184705B (en) * | 2011-02-21 | 2015-11-04 | 刘敬梅 | A kind of voice-operated LED display control program |
| CN102254513A (en) * | 2011-07-14 | 2011-11-23 | 康佳集团股份有限公司 | Multifunctional control system for light-emitting diode (LED) display screen |
| CN102254513B (en) * | 2011-07-14 | 2015-07-29 | 康佳集团股份有限公司 | A kind of LED display multifunction control system |
| CN103021340A (en) * | 2012-12-28 | 2013-04-03 | 西安诺瓦电子科技有限公司 | LED display screen control device |
| CN103021340B (en) * | 2012-12-28 | 2016-06-08 | 西安诺瓦电子科技有限公司 | A kind of LED display screen control device |
| CN103903568A (en) * | 2014-04-24 | 2014-07-02 | 西安诺瓦电子科技有限公司 | Led display screen control card |
| CN103903568B (en) * | 2014-04-24 | 2016-01-06 | 西安诺瓦电子科技有限公司 | LED display control card |
| CN109240634A (en) * | 2018-11-20 | 2019-01-18 | 宁波Gqy视讯股份有限公司 | The output node of distributed splice displaying system and distributed splice displaying system |
| CN109240634B (en) * | 2018-11-20 | 2021-11-26 | 宁波Gqy视讯股份有限公司 | Output node of distributed tiled display system and distributed tiled display system |
| CN114237544A (en) * | 2021-12-15 | 2022-03-25 | 北京百度网讯科技有限公司 | Audio input method and device, electronic equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20121225 |