CN101370093A - Built-in television card and its television signal broadcasting method - Google Patents
Built-in television card and its television signal broadcasting method Download PDFInfo
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- CN101370093A CN101370093A CNA2007101204063A CN200710120406A CN101370093A CN 101370093 A CN101370093 A CN 101370093A CN A2007101204063 A CNA2007101204063 A CN A2007101204063A CN 200710120406 A CN200710120406 A CN 200710120406A CN 101370093 A CN101370093 A CN 101370093A
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Abstract
A built-in television card and a television signal broadcasting method thereof are disclosed, referring to the technical field of computer. The inventive television card comprises a television modem, an audio/video processor, a video signal switcher and an audio signal switcher. A cable television input signal is connected to the audio/video processor via the television modem. A television video signal output from the audio/video processor is connected to a computer display via a VGA video signal output end of the video signal switcher, a television audio signal output from the audio/video processor is connected to a computer sound box via an audio output end of the audio signal switcher. A card switching switch is provided between the audio signal switcher and the video signal switcher, the computer host customizes +5VSB power source to supply the television card. Compared with the prior art, the inventive technical proposal does not require installations of drives and software for viewing, has uncomplicated wire connection outside the host and simple, easy operation, so reception effect of the television is satisfactory.
Description
Technical field
The present invention relates to field of computer technology, particularly the built-in TV card and the TV signal player method thereof of powering by main frame+5V standby power.
Background technology
Along with popularizing of computer, realize in computer seeing that the function of TV is by masses' approval and a large amount of the use.In desktop computer, realize at present seeing that the main operational version of TV functions has:
Scheme one: built-in PCI TV card
The user that this scheme is play after being suitable for television recording, storage to be used for.Method of operation is as follows: TV card is inserted on the mainboard PCI groove, televiewed behind installation associated drives and the playout software in operating system, also need to be provided with just and can realize if need record.Shortcoming is: driving and playout software complexity are installed, and easily by virus damage, operating system is damaged the back TV and can not be seen, need repeat above software installation process.Therefore software is installed complicated.
Scheme two: external TV box
This arrangements is flexible, is applicable to that frequent change sees the user of the used computer of TV.Method of operation is as follows: 1. connect the power supply adaptor to the TV box power supply; 2. connect the video connecting line that outputs to the input of TV box video from the main frame display card; 3. connect the audio connecting cord that the main frame audio frequency outputs to the input of TV box audio frequency; 4. connect the video connecting line that the TV box video outputs to display.1., 2., 3., 4. four lines all outside host computer, complicated in disorder, break down easily.This method comparison " original ", simple, but the hardware line is very complicated and need external 220V power supply.
The external TV rod of scheme three: USB
This scheme and scheme one are similar, and different is that this scheme link form is for passing through USB interface but not built-in pci interface and computer communication.Simpler than scheme one, but have same problem, and also TV receiving effect is relatively poor relatively.
Summary of the invention
At the shortcoming that exists in the above-mentioned prior art, the purpose of this invention is to provide a kind of built-in TV card and TV signal player method thereof.This technical solution does not need to install driving and watches that software, main frame do not have complicated line outward, and simple to operation, TV receiving effect is satisfactory.
In order to reach the foregoing invention purpose, technical scheme of the present invention realizes as follows:
A kind of built-in TV card is characterized in that, it comprises television modem, audio video processor, vision signal switch and audio signal switch.The cable TV input signal is connected to audio video processor by television modem.Be connected to computer display from the television video frequency signal of the audio video processor output VGA VT by the vision signal switch, be connected to the computer audio amplifier from the television audio signals of the audio video processor output audio output by the audio signal switch.Display card VGA output on the main frame links to each other with the VGA video signal input terminal of TV card vision signal switch, and the output of main frame audio frequency links to each other with the TV card audio input end.Be provided with the card diverter switch between vision signal switch and the audio signal switch, the card diverter switch links to each other with diverter switch on the main frame.Main frame customization+5VSB power supply is powered to TV card, and the infrared receiving terminal one of TV card links to each other with the infrared receiving terminal two of main frame.
In above-mentioned built-in TV card, use the chip model to be CX25836/7 in the described audio video processor.
The TV signal player method of above-mentioned built-in TV card, its key step is:
1) under the computer shutdown state:
1. the main frame socket power is opened display and audio amplifier, use the main frame customization+5V SB power supply powers to TV card;
2. start TV card with the dedicated button on remote controller or the main frame, television video, audio signal are normally exported by display and audio amplifier respectively.
2) under the computer executive operating system operating state:
1. use main frame customization+5V SB power supply powers to TV card, the video of computer, audio signal are transferred to display and audio amplifier output by TV card;
2. start TV card with the dedicated button on remote controller or the main frame, the computer video of former output, audio signal switch to video, the audio signal of TV and normally export.
The present invention compares, has the following advantages with existing TV card (USB TV rod) technology:
1. saved and entered the trouble that operating system just can be seen TV.
2. saved the trouble that drives and watch software has been installed.
3. do not need to start computer, save the energy.
4. have TV remote controller, operation is convenient.
5. can support all operations system.
The present invention compares with existing TV box technology, has the following advantages:
1. simplified line complexity in the computer outside.
2. saved power supply adaptor.
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is an inner function module connection diagram of the present invention;
Fig. 2 is the present invention and computer connection diagram;
Fig. 3 is the circuit connection diagram of audio video processor among the present invention.
Embodiment
Referring to Fig. 1 to Fig. 3, the built-in TV card of the present invention comprises television modem, audio video processor, vision signal switch and audio signal switch.Use the chip model to be CX25836/7 in the audio video processor.The cable TV input signal is connected to audio video processor by television modem.Be connected to computer display from the television video frequency signal of the audio video processor output VGA VT by the vision signal switch, be connected to the computer audio amplifier from the television audio signals of the audio video processor output audio output by the audio signal switch.Display card VGA output on the main frame links to each other with the VGA video signal input terminal of TV card vision signal switch, and the output of main frame audio frequency links to each other with the TV card audio input end.Be provided with the card diverter switch between vision signal switch and the audio signal switch, the card diverter switch links to each other with diverter switch on the main frame.Main frame customization+5VSB power supply is powered to TV card, and the infrared receiving terminal one of TV card links to each other with the infrared receiving terminal two of main frame.Use the built-in TV card of the present invention to realize that the method step that TV signal is play is:
1) under the computer shutdown state:
1. the main frame socket power is opened display and audio amplifier, use the main frame customization+5V SB power supply powers to TV card;
2. start TV card with the dedicated button on remote controller or the main frame, television video, audio signal are normally exported by display and audio amplifier respectively.
2) under the computer executive operating system operating state:
1. use main frame customization+5V SB power supply powers to TV card, the video of computer, audio signal are transferred to display and audio amplifier output by TV card;
2. start TV card with the dedicated button on remote controller or the main frame, the computer video of former output, audio signal switch to video, the audio signal of TV and normally export.
Claims (3)
1. built-in TV card, it is characterized in that, it comprises television modem, audio video processor, vision signal switch and audio signal switch, the cable TV input signal is connected to audio video processor by television modem, be connected to computer display from the television video frequency signal of the audio video processor output VGA VT by the vision signal switch, be connected to the computer audio amplifier from the television audio signals of the audio video processor output audio output by the audio signal switch; Display card VGA output on the main frame links to each other with the VGA video signal input terminal of TV card vision signal switch, the output of main frame audio frequency links to each other with the TV card audio input end, be provided with the card diverter switch between vision signal switch and the audio signal switch, the card diverter switch links to each other with diverter switch on the main frame, main frame customization+5VSB power supply is powered to TV card, and the infrared receiving terminal one of TV card links to each other with the infrared receiving terminal two of main frame.
2. built-in TV card according to claim 1 is characterized in that, uses the chip model to be CX25836/7 in the described audio video processor.
3. realize the TV signal player method of built-in TV card according to claim 1, its key step is:
1) under the computer shutdown state:
1. the main frame socket power is opened display and audio amplifier, use the main frame customization+5V SB power supply powers to TV card;
2. start TV card with the dedicated button on remote controller or the main frame, television video, audio signal are normally exported by display and audio amplifier respectively;
2) under the computer executive operating system operating state:
1. use main frame customization+5V SB power supply powers to TV card, the video of computer, audio signal are transferred to display and audio amplifier output by TV card;
2. start TV card with the dedicated button on remote controller or the main frame, the computer video of former output, audio signal switch to video, the audio signal of TV and normally export.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101204063A CN101370093A (en) | 2007-08-17 | 2007-08-17 | Built-in television card and its television signal broadcasting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101204063A CN101370093A (en) | 2007-08-17 | 2007-08-17 | Built-in television card and its television signal broadcasting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101370093A true CN101370093A (en) | 2009-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101204063A Pending CN101370093A (en) | 2007-08-17 | 2007-08-17 | Built-in television card and its television signal broadcasting method |
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| Country | Link |
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| CN (1) | CN101370093A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102695087A (en) * | 2011-03-21 | 2012-09-26 | 中兴通讯股份有限公司 | Digital television playing method, device and USB Television card |
| CN111212248A (en) * | 2020-01-14 | 2020-05-29 | 深圳康佳电子科技有限公司 | Television signal processing method, television and storage medium |
-
2007
- 2007-08-17 CN CNA2007101204063A patent/CN101370093A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102695087A (en) * | 2011-03-21 | 2012-09-26 | 中兴通讯股份有限公司 | Digital television playing method, device and USB Television card |
| CN111212248A (en) * | 2020-01-14 | 2020-05-29 | 深圳康佳电子科技有限公司 | Television signal processing method, television and storage medium |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090218 |