CN113965780A - Color difference line audio/video converter for GameCube game machine - Google Patents
Color difference line audio/video converter for GameCube game machine Download PDFInfo
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- CN113965780A CN113965780A CN202111386126.3A CN202111386126A CN113965780A CN 113965780 A CN113965780 A CN 113965780A CN 202111386126 A CN202111386126 A CN 202111386126A CN 113965780 A CN113965780 A CN 113965780A
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- 230000005236 sound signal Effects 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 238000007781 pre-processing Methods 0.000 claims abstract description 13
- 230000010354 integration Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N21/4781—Games
Abstract
The invention discloses a color difference line audio/video converter for a GameCube game machine, which comprises a digital audio/video signal interface, a PCB printed circuit and an audio/video color difference line interface, and is characterized in that: the PCB printed circuit is provided with an FPGA chip, and the FPGA chip comprises a video image acquisition and preprocessing module, a video format processing and image resolution adjusting module, a video signal digital/analog conversion module, a color difference signal output module, a digital audio noise reduction module and an audio signal digital/analog conversion module. The invention can be applied to video output of a GameCube game machine, transmits video signals to a signal preprocessing module through a special audio/video output interface of the game machine, converts the video signals into RGB three-path color difference signals through D/A, outputs the RGB three-path color difference signals through a color difference line, can also perform noise reduction and D/A conversion on digital audio signals, outputs the RCA connector, is plug-and-play, has wide application range, realizes an integration scheme through an FPGA chip, and has the characteristics of low power consumption, simple production process, low cost and the like.
Description
Technical Field
The invention relates to the field of audio/video converters, in particular to a color-difference linear audio/video converter for a GameCube game machine.
Background
Different video formats have the original purposes and meanings, and the audio-video converter aims to re-encode the video according to the encoding specification of a new target video format after decoding the film source so as to realize the purpose of small video. The common formats of videos downloaded from a network are rmvb and flv, the formats have the characteristic of small volume and are beneficial to network transmission, but the format has low hardware compatibility and cannot be played on video disc players such as DVD and the like, and the purpose of playing video resources with the original formats of rmvb and flv on hardware such as DVD video disc players and mobile phones can be achieved through an audio-video converter.
The video interface of the GameCube family game machine is provided with a composite video interface and a digital video interface, but is not suitable for being connected with color difference output, the game picture of the GameCube game is output to a television coloring difference component interface at present, an analog audio-video converter is required, the connection structure is relatively complex, the loss of an analog signal in the transmission process is large, the anti-interference performance is poor, the quality of a display picture transmitted to the television is low, the scheme of converting the composite video signal into a color difference line sold in the market only has a video function, an audio interface is required to be additionally connected, the use is inconvenient, and the color difference video converter in the market cannot provide an audio signal transmission channel.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art and provides a color difference linear audio/video converter for a GameCube game machine.
In order to achieve the purpose, the invention provides the following technical scheme: a color difference line audio/video converter for a GameCube game machine comprises a digital audio/video signal interface, a PCB printed circuit and an audio/video color difference line interface, wherein an FPGA chip is arranged in the PCB printed circuit, and comprises a video image acquisition and preprocessing module, a video format processing and image resolution adjusting module, a video signal digital/analog conversion module, a color difference signal output module, a digital audio noise reduction module and an audio signal digital/analog conversion module.
Preferably, the digital audio and video signal interface and the PCB printed circuit are fixed on one side of the PCB through a clamping plate, and the other side of the PCB is provided with an RCA output interface of the color difference signal and the audio signal.
Preferably, the video signal is transmitted to the video image acquisition and preprocessing module, the video image acquisition and preprocessing module transmits the processed video image to the video format processing and image resolution adjusting module, the video format processing and image resolution adjusting module transmits the video image with the adjusted resolution to the video signal digital/analog conversion module, the video image converted by the video signal digital/analog conversion module is output as a color difference signal, and finally, an analog high-definition video signal is sent out.
Preferably, the I2S digital audio signal is transmitted to the digital audio noise reduction module, the digital audio noise reduction module transmits the noise-reduced audio to the audio signal digital/analog conversion module, and the audio signal digital/analog conversion module outputs the converted audio as an analog audio signal.
Compared with the prior art, the invention has the following beneficial effects:
the invention can be applied to video output of a GameCube game machine, transmits video signals to a signal preprocessing module through a special audio/video output interface of the game machine, converts the video signals into RGB three-path color difference signals through D/A, and outputs the RGB three-path color difference signals through a color difference line.
Drawings
FIG. 1 is a schematic diagram of a converter according to the present invention;
fig. 2 is a schematic structural diagram of signal transmission of the FPGA chip of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a color difference line audio/video converter for a game machine includes a digital audio/video signal interface, a PCB printed circuit, and an audio/video color difference line interface, wherein: the PCB printed circuit is provided with an FPGA chip, and the FPGA chip comprises a video image acquisition and preprocessing module, a video format processing and image resolution adjusting module, a video signal digital/analog conversion module, a color difference signal output module, a digital audio noise reduction module and an audio signal digital/analog conversion module.
In one aspect of this embodiment, the digital audiovisual signal interface and the PCB printed circuit are fixed to one side of the PCB by a clamping plate, and the other side of the PCB is an RCA output interface for the color difference signal and the audio signal.
In one aspect of this embodiment, the video signal is transmitted to the video image collecting and preprocessing module, the video image collecting and preprocessing module transmits the processed video image to the video format processing and image resolution adjusting module, the video format processing and image resolution adjusting module transmits the video image with the adjusted resolution to the video signal digital/analog converting module, the video image converted by the video signal digital/analog converting module is output as a color difference signal, and finally, an analog high-definition video signal is sent out.
In one aspect of this embodiment, the I2S digital audio signal is transmitted to a digital audio noise reduction module, the digital audio noise reduction module transmits the noise-reduced audio to an audio signal digital-to-analog conversion module, and the audio signal digital-to-analog conversion module outputs the converted audio as an analog audio signal.
The working principle of the invention is as follows: the color difference wire audio/video converter for the GameCube game machine can be applied to video output of the GameCube game machine, video signals are transmitted to the signal preprocessing module through a special audio/video output interface of the game machine, then are converted into RGB three-way color difference signals through D/A, and then are output through a color difference wire.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A color difference line audio/video converter for GameCube game machine, includes digital audio/video signal interface, PCB printed circuit and audio/video color difference line interface, characterized by that: the PCB printed circuit is provided with an FPGA chip, and the FPGA chip comprises a video image acquisition and preprocessing module, a video format processing and image resolution adjusting module, a video signal digital/analog conversion module, a color difference signal output module, a digital audio noise reduction module and an audio signal digital/analog conversion module.
2. The color difference line audio/video converter for game cube game machine according to claim 1, wherein: the digital audio and video signal interface and the PCB printed circuit are fixed on one side of the PCB through a clamping plate, and the other side of the PCB is provided with an RCA output interface of a color difference signal and an audio signal.
3. The color difference line audio/video converter for game cube game machine according to claim 1, wherein: the video signal is transmitted into a video image acquisition and preprocessing module, the video image acquisition and preprocessing module transmits the processed video image to a video format processing and image resolution adjusting module, the video format processing and image resolution adjusting module transmits the video image with the adjusted resolution to a video signal digital/analog conversion module, the video image converted by the video signal digital/analog conversion module is output as a color difference signal, and finally, an analog high-definition video signal is sent out.
4. The color difference line audio/video converter for game cube game machine according to claim 1, wherein: the I2S digital audio signal is transmitted into the digital audio noise reduction module, the digital audio noise reduction module transmits the audio after noise reduction processing to the audio signal digital/analog conversion module, and the audio signal digital/analog conversion module outputs the converted audio as an analog audio signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111386126.3A CN113965780A (en) | 2021-11-22 | 2021-11-22 | Color difference line audio/video converter for GameCube game machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111386126.3A CN113965780A (en) | 2021-11-22 | 2021-11-22 | Color difference line audio/video converter for GameCube game machine |
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| CN113965780A true CN113965780A (en) | 2022-01-21 |
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| CN202111386126.3A Pending CN113965780A (en) | 2021-11-22 | 2021-11-22 | Color difference line audio/video converter for GameCube game machine |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030050116A1 (en) * | 2001-09-10 | 2003-03-13 | William Chen | Picture video signal converting/processing circuit for GBA (gameboy advance) or GBC (gameboy color) |
| KR200318449Y1 (en) * | 2003-03-28 | 2003-06-28 | 주식회사 네오텍 | Scan converter of video signal |
| CN2579118Y (en) * | 2002-09-24 | 2003-10-08 | 吴石松 | Set-top box for digital video-audio D-A conversion |
| CN203181090U (en) * | 2013-01-22 | 2013-09-04 | 深圳市显盈电子科技有限公司 | High-definition multimedia signal conversion apparatus |
| CN111601057A (en) * | 2020-06-18 | 2020-08-28 | 深圳市兴龙乐电子有限公司 | High definition converter |
| CN216313300U (en) * | 2021-11-22 | 2022-04-15 | 深圳市兴龙乐电子有限公司 | Color difference line audio/video converter for GameCube game machine |
-
2021
- 2021-11-22 CN CN202111386126.3A patent/CN113965780A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030050116A1 (en) * | 2001-09-10 | 2003-03-13 | William Chen | Picture video signal converting/processing circuit for GBA (gameboy advance) or GBC (gameboy color) |
| CN2579118Y (en) * | 2002-09-24 | 2003-10-08 | 吴石松 | Set-top box for digital video-audio D-A conversion |
| KR200318449Y1 (en) * | 2003-03-28 | 2003-06-28 | 주식회사 네오텍 | Scan converter of video signal |
| CN203181090U (en) * | 2013-01-22 | 2013-09-04 | 深圳市显盈电子科技有限公司 | High-definition multimedia signal conversion apparatus |
| CN111601057A (en) * | 2020-06-18 | 2020-08-28 | 深圳市兴龙乐电子有限公司 | High definition converter |
| CN216313300U (en) * | 2021-11-22 | 2022-04-15 | 深圳市兴龙乐电子有限公司 | Color difference line audio/video converter for GameCube game machine |
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