CN202772995U - Audio and video conversion system of television switchboard - Google Patents
Audio and video conversion system of television switchboard Download PDFInfo
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- CN202772995U CN202772995U CN 201220443185 CN201220443185U CN202772995U CN 202772995 U CN202772995 U CN 202772995U CN 201220443185 CN201220443185 CN 201220443185 CN 201220443185 U CN201220443185 U CN 201220443185U CN 202772995 U CN202772995 U CN 202772995U
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Abstract
The utility model relates to a television switchboard, and particularly discloses an audio and video conversion system of a television switchboard. The audio and video conversion system comprises a host. The input end of the host is connected with a video source. Two matrices including a video matrix and an audio matrix are arranged in the host. The output end of the video matrix is connected with a video transmission control chipset, wherein the video transmission control chipset comprises a video transmission driving chip and a video transmission receiving chip corresponding to the video transmission driving chip. The output end of the video transmission receiving chip is connected with the video output, and the output end of the audio matrix is connected with the audio output through a transmission line. By adopting the above-mentioned structure, the audio and video conversion system of the utility model has advantages of simple structure, farther transmission distance and clear and sharp images.
Description
Technical field
The utility model relates to the Voice ﹠ Video converting system of a kind of TV switch, particularly a kind of TV switch.
Background technology
Along with the raising of people's living standard, the home theater in the Modern Family generally all comprises a plurality of video source, such as digital television set top box, satellite television receiver, video disc player, watch-dog etc.These video source generally all are placed on the different location, and all video source can not be set in each room, and the video source that will select like this oneself to want to watch in certain room is not very convenient just.Be provided with video, audio frequency double-matrix in the main frame of TV switch, can input multiple different television equipment, so just can in certain room, select arbitrarily a video source to watch, easily.
Summary of the invention
The utility model technical issues that need to address provide a kind of audio frequency and video converting system of being convenient to long-distance transmissions of TV switch.
For solving above-mentioned technical problem, the audio frequency and video converting transmission system of the utility model TV switch comprises main frame, the input of described main frame is connected with video source, built-in video, audio frequency double-matrix in the described main frame, the output of described video matrix is connected with transmission of video control chip group, and described transmission of video chipset comprises that a transmission of video drives chip and the transmission of video receiving chip corresponding with it; The output of described transmission of video receiving chip is connected with display, and the output of described Audio Matrix is connected with audio amplifier by transmission line.
Further, described transmission of video driving chip and transmission of video receiving chip pass through twisted pair line connection; The output of described Audio Matrix is connected with audio amplifier by the super Category-5 twisted pair of non-shielding.
Further, described transmission of video drives chip and adopts EL5171 or EL5371, and described transmission of video receiving chip adopts EL5172 or the EL5372 corresponding with it.
After adopting said structure, the output signal of video matrix can be carried out long-distance transmissions to the transmission of video receiving chip after driving chip by transmission of video, then is connected to video output terminals output.The utility model is simple in structure, and transmission range is farther, and clear picture is sharp keen.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the circuit theory schematic diagram of the utility model video converting transmission.
Among the figure: 1 is video matrix, and 2 for transmission of video drives chip, and 3 is twisted-pair feeder, and 4 is the transmission of video receiving chip
Embodiment
As shown in Figure 1, the audio frequency and video converting transmission system of the utility model TV switch comprises main frame, and the input of described main frame is connected with video source, and video source can be the multiple different video equipment in the family.Built-in video, audio frequency double-matrix in the described main frame, the video matrix here adopts FMS6502, and Audio Matrix adopts MT8816.Behind a plurality of video source access hosts, can select to export that video source by video, Audio Matrix and watch.
The output of described video matrix is connected with transmission of video control chip group, and described transmission of video chipset comprises that a transmission of video drives chip 2 and the transmission of video receiving chip 4 corresponding with it; The output of described transmission of video receiving chip is connected with display, and the output of described Audio Matrix is connected with audio amplifier by transmission line.Described transmission of video drives chip and adopts EL5171 or EL5371, and described transmission of video receiving chip adopts EL5172 or the EL5372 corresponding with it.Namely when transmission of video drove chip employing EL5171, the transmission of video receiving chip adopted EL5172; When transmission of video drove chip employing EL5371, the transmission of video receiving chip adopted EL5372.Transmission of video driving chip is converted to the signal of being convenient to long-distance transmissions with the output signal of video matrix like this, again this signal is converted to vision signal at transmission of video receiving chip end and exports to display.Described transmission drives chip and is connected by twisted-pair feeder 3 with the transmission of video receiving chip, so that transmission range is farther, clear picture is sharp keen, is convenient to vision signal and carries out long-distance transmissions.
In order thoroughly to solve cross-talk and audio frequency was in problems such as the twisted-pair feeder transmission easily are interfered in the past, the output of described Audio Matrix is connected with audio amplifier by the super Category-5 twisted pair of non-shielding, fully satisfied strict demand to tonequality, volume.
Claims (3)
1. the audio frequency and video converting system of a TV switch, comprise main frame, the input of described main frame is connected with video source, built-in video, audio frequency double-matrix in the described main frame, it is characterized in that: the output of described video matrix is connected with transmission of video control chip group, and described transmission of video chipset comprises that a transmission of video drives chip and the transmission of video receiving chip corresponding with it; The output of described transmission of video receiving chip is connected with display, and the output of described Audio Matrix is connected with audio amplifier by transmission line.
2. according to the audio frequency and video converting system of TV switch claimed in claim 1, it is characterized in that: described transmission of video drives chip and the transmission of video receiving chip passes through twisted pair line connection; The output of described Audio Matrix is connected with audio amplifier by the super Category-5 twisted pair of non-shielding.
3. according to the audio frequency and video converting system of TV switch claimed in claim 1, it is characterized in that: described transmission of video drives chip and adopts EL5171 or EL5371, and described transmission of video receiving chip adopts EL5172 or the EL5372 corresponding with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220443185 CN202772995U (en) | 2012-08-31 | 2012-08-31 | Audio and video conversion system of television switchboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220443185 CN202772995U (en) | 2012-08-31 | 2012-08-31 | Audio and video conversion system of television switchboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202772995U true CN202772995U (en) | 2013-03-06 |
Family
ID=47779535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220443185 Expired - Fee Related CN202772995U (en) | 2012-08-31 | 2012-08-31 | Audio and video conversion system of television switchboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202772995U (en) |
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2012
- 2012-08-31 CN CN 201220443185 patent/CN202772995U/en not_active Expired - Fee Related
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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: 20130306 Termination date: 20150831 |
|
| EXPY | Termination of patent right or utility model |