CN201754602U - Television module for computer - Google Patents
Television module for computer Download PDFInfo
- Publication number
- CN201754602U CN201754602U CN2010201652175U CN201020165217U CN201754602U CN 201754602 U CN201754602 U CN 201754602U CN 2010201652175 U CN2010201652175 U CN 2010201652175U CN 201020165217 U CN201020165217 U CN 201020165217U CN 201754602 U CN201754602 U CN 201754602U
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- China
- Prior art keywords
- interface unit
- unit
- audio
- computer
- control unit
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- Expired - Fee Related
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The utility model provides a television module for a computer, which comprises a radio-frequency signal receiving unit (101), a demodulation unit (102), an audio and video interface unit (107), a control unit (103) and a computer interface unit (104), wherein the demodulation unit (102) is connected with the radio-frequency signal receiving unit (101), the control unit (103) connected with the demodulation unit (102) and the audio and video interface unit (107) is used for decoding and restoring TS flow from the demodulation unit (102) or audio and video signals from the audio and video interface unit (107) into data flow which can be recognized by the computer interface unit (104), and the computer interface unit (104) is connected with the control unit (103). The television module for a computer is wide in applicable scope and can receive wireless television signals, closed-circuit analog wire television signals and digital set-top box wire television signals.
Description
Technical field
The utility model relates to technical field of television sets, relates in particular to a kind of television module that is used for computer.
Background technology
Connect television module on computers, the software on the computer receives television module and the TV signal reduction of conversion, can be implemented in TV reception on the display of aforementioned calculation machine.
The kind of interface of existing television module is few, some television modules have the antenna receiving element, can accept wireless television signal by antenna, because the TV programme quantity of propagating by wireless television signal seldom, so use this television module can not satisfy the demand of user to TV programme quantity; Also have some television modules to have antenna receiving element and S terminal receiving element, can receive wireless television signal and closed circuit analog catv signal, but can not receive the top box of digital machine cable TV signal, so use this television module can't satisfy the cable digital TV user watches the cable digital TV program on the display of computer demand.
The utility model content
At above-mentioned problems of the prior art, the purpose of this utility model is to provide a kind of television module that is used for computer, and it is applied widely, can receive wireless television signal, closed circuit analog catv signal and top box of digital machine cable TV signal.
The television module that is used for computer that the utility model provides comprises:
Radiofrequency signal receiving element 101;
Demodulating unit 102 is connected with radiofrequency signal receiving element 101;
Audio-video interface unit 107;
As from the foregoing, adopt the television module that is used for computer of technique scheme applied widely, can receive wireless television signal, closed circuit analog catv signal and top box of digital machine cable TV signal.
Wherein, also comprise the Y/C interface unit 109 that is used for receiving video signals, described Y/C interface unit 109 is electrically connected with control unit 103;
Described control unit 103 also is used for the vision signal decoding from Y/C interface unit 109 is reduced into computer interface unit 104 discernible data flow.
As from the foregoing, comprise that the television module of Y/C interface unit 109 can be realized brightness and chrominance separation transmission, avoid the mutual interference mutually of brightness and colourity to reduce image fault.
Wherein, also comprise the audio interface unit 108 that is used for received audio signal, described audio interface unit 108 is electrically connected with control unit 103;
Described control unit 103 also is used for the audio signal decoding from audio interface unit 108 is reduced into computer interface unit 104 discernible data flow.
As from the foregoing, the television module that comprises audio interface unit 108 can receive the audio signal in DVD or other the external playback equipments.
Preferable, also comprise be connected with control unit 103 one of following at least:
Be used to receive HDMI interface unit, DisplayPort interface unit and the YPbPr interface unit of high-definition video signal.
As from the foregoing, comprise that one or more the television module in HDMI interface unit, DisplayPort interface unit and the YPbPr interface unit can receive high-definition video signal.
Wherein, described demodulating unit 102 comprises tuner chip XC2028.
As from the foregoing, tuner chip XC2028 volume is little, makes to comprise that the television module volume of tuner chip XC2028 is little, the convenient use.
Wherein, described control unit 103 comprises main control chip VC0257.
As from the foregoing, main control chip VC0257 volume is little, makes to comprise that the television module volume of tuner chip XC2028 is little, the convenient use.
Wherein, comprise also being used for data cached memory cell 105 that described memory cell 105 is connected with control unit 103.
As from the foregoing, comprise that the television module of memory cell 105 can the buffer memory more data, help improving the speed of data processing.
Preferable, also comprising the power subsystem 106 that is used for to control unit 103 power supplies, described power subsystem 106 is connected with control unit 103 with described computer interface unit 104 respectively.
As from the foregoing, comprise that the television module of power subsystem 106 can obtain power supply from computer interface unit 104, avoid being provided with independent power supply, save manufacturing cost.
Preferable, described computer interface unit 104 comprises USB interface.
As from the foregoing, USB interface is a general-purpose interface, is convenient to television module and is connected with notebook, all-in-one and desktop computer product.
Description of drawings
Below with reference to each accompanying drawing, embodiment of the present utility model is described.
Fig. 1 is the structure principle chart of the television module that is used for computer that provides of the utility model;
Fig. 2 is the circuit diagram of the radiofrequency signal receiving element of television module;
Fig. 3 is the circuit diagram of the demodulating unit of television module;
Fig. 4 is the circuit diagram of control unit, audio-video interface unit, audio interface unit and the computer interface unit of television module;
Fig. 5 is the circuit diagram of the Y/C interface unit of television module;
Fig. 6 is the circuit diagram of the memory cell of television module;
Fig. 7 is the circuit diagram of the power subsystem of television module.
Embodiment
Below in conjunction with accompanying drawing the utility model is introduced.The structure principle chart of the television module that is used for computer that Fig. 1 provides for the utility model, as shown in the figure, this television module comprises radiofrequency signal receiving element 101, demodulating unit 102, audio-video interface unit 107, audio interface unit 108, Y/C interface unit 109, control unit 103, computer interface unit 104, memory cell 105 and power subsystem 106.
Wherein, radiofrequency signal receiving element 101 is used for received RF signal, and radiofrequency signal is carried out being transferred to demodulating unit 102 after the Filtering Processing such as signal amplification, mixing, direct current correction, low-pass filtering and gain amplification.Above-mentioned radiofrequency signal can comprise wireless television signal or closed circuit analog catv signal.
Demodulating unit 102 is used to receive the zero intermediate frequency signals from the radiofrequency signal of radiofrequency signal receiving element 101, and zero intermediate frequency signals is carried out channel demodulation and forward error correction handle, the transmission stream (TS, Transport Stream) that comprises vision signal and audio signal that forms reference format is transferred to control unit 103.In this example, demodulating unit 102 comprises tuner chip XC2028.
Audio-video interface unit 107 is used to receive audio-video signal, can receive the audio-video signal among top box of digital machine cable TV or the DVD.
Y/C interface unit 109 is used for receiving video signals, and it avoids the mutual interference mutually of brightness and colourity to reduce image fault brightness and chrominance separation transmission.
The part physical circuit figure that Fig. 2,3,4,5,6,7 provides constitutes the complete circuit of the television module that is used for computer that present embodiment provides altogether.Wherein, Fig. 2 is the physical circuit figure of the radiofrequency signal receiving element of television module; Fig. 3 is the physical circuit figure of the demodulating unit of television module; Fig. 4 is the physical circuit figure of control unit, audio-video interface unit, audio interface unit and the computer interface unit of television module; Fig. 5 is the physical circuit figure of the Y/C interface unit of television module; Fig. 6 is the physical circuit figure of the memory cell of television module; Fig. 7 is the physical circuit figure of the power subsystem of television module.
More than be preferred implementation of the present utility model, but the utility model is not limited to this execution mode, but can in the scope defined in claims, carries out various changes.For example, also can adopt Mini PCI E interface, pcmcia interface or pci interface to replace USB interface, the realization television module is connected with computer.This television module that is used for computer can also comprise HDMI interface unit, DisplayPort interface unit and the YPbPr interface unit that is used to receive high-definition signal.Certainly, also can comprise and be used for the VGA interface that is connected with the display of computer.
Claims (9)
1. television module that is used for computer is characterized in that: comprising:
Radiofrequency signal receiving element (101);
Demodulating unit (102) is connected with radiofrequency signal receiving element (101);
Audio-video interface unit (107);
Control unit (103), be connected with audio-video interface unit (107) with demodulating unit (102), being used for will (Transport Stream TS) or from the audio-video signal decoding of audio-video interface unit (107) be reduced into the discernible data flow of computer interface unit (104) from the transmission of demodulation unit (102) stream;
Computer interface unit (104) is connected with control unit (103).
2. television module according to claim 1 is characterized in that: also comprise Y/C interface unit (109), described Y/C interface unit (109) is electrically connected with control unit (103);
Described control unit (103) also is used for the vision signal decoding from Y/C interface unit (109) is reduced into the discernible data flow of computer interface unit (104).
3. television module according to claim 2 is characterized in that: also comprise audio interface unit (108), described audio interface unit (108) is electrically connected with control unit (103);
Described control unit (103) also is used for the audio signal decoding from audio interface unit (108) is reduced into the discernible data flow of computer interface unit (104).
4. television module according to claim 3 is characterized in that: also comprise be connected with control unit (103) one of following at least:
HDMI interface unit, DisplayPort interface unit and YPbPr interface unit.
5. television module according to claim 1 is characterized in that: described demodulating unit (102) comprises tuner chip XC2028.
6. television module according to claim 5 is characterized in that: described control unit (103) comprises main control chip VC0257.
7. television module according to claim 6 is characterized in that: also comprise memory cell (105), described memory cell (105) is connected with control unit (103).
8. television module according to claim 1 is characterized in that: also comprise power subsystem (106), described power subsystem (106) is connected with control unit (103) with described computer interface unit (104) respectively.
9. according to claim 1 or 8 described television modules, it is characterized in that: described computer interface unit (104) comprises USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201652175U CN201754602U (en) | 2010-04-21 | 2010-04-21 | Television module for computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201652175U CN201754602U (en) | 2010-04-21 | 2010-04-21 | Television module for computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201754602U true CN201754602U (en) | 2011-03-02 |
Family
ID=43622334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201652175U Expired - Fee Related CN201754602U (en) | 2010-04-21 | 2010-04-21 | Television module for computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201754602U (en) |
-
2010
- 2010-04-21 CN CN2010201652175U patent/CN201754602U/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: 20110302 Termination date: 20150421 |
|
| EXPY | Termination of patent right or utility model |