CN2788481Y - Multi-media digital TV set - Google Patents
Multi-media digital TV set Download PDFInfo
- Publication number
- CN2788481Y CN2788481Y CNU2005200328192U CN200520032819U CN2788481Y CN 2788481 Y CN2788481 Y CN 2788481Y CN U2005200328192 U CNU2005200328192 U CN U2005200328192U CN 200520032819 U CN200520032819 U CN 200520032819U CN 2788481 Y CN2788481 Y CN 2788481Y
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- hdmi
- processing unit
- signal processing
- digital television
- digital
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Abstract
The utility model relates to a television technique, particular a digital television machine audio and video output technique, and the utility model discloses a multi-media digital television. The utility model has the technical scheme that the multi-media digital television comprises a display unit, a digital signal processing unit, an HDMI signal processing unit and an HDMI signal output port, wherein the HDMI signal processing unit is connected with the digital signal processing unit so as to carry out HDMI encoding to digital audio and video signals output from the digital signal processing unit, and HDMI signals can be output from the HDMI signal output port. The utility model has the advantage that the multi-media digital television increases output signal quality of the digital television, gives full play to the superiority of the digital television and increases the output interface ability of the digital television.
Description
Technical field
The utility model relates to TV tech, particularly digital television audio frequency and video export technique.
Background technology
The television monitor output port of prior art is the general name of interlacing composite video signal output port and Audio output port, promptly usually said AV signal.The AV signal is connected the purpose that reaches two television set audio-visual synchronization reproductions with other TVs by the AV connecting line.The monitor export technique of this mode has been continued to use decades.In TV tech digital television techniques growing today particularly, the AV signal is because signal quality is lower, and it is used just gradually and reduces.HDMI (Hi-Definition Multimedia Interface HDMI (High Definition Multimedia Interface)) is that a kind of compatibility is strong, transmission rate is high, the interface size is little, interfacing that can the high quality digital audio-video signal.Present high-grade digital television and multimedia equipment, basically all have HDMI receiver port and HDMI signal decoding ability, along with improving constantly of audio frequency and video reproducing technology, require television set that higher-quality audio-video signal output is arranged, to satisfy the requirement of various multimedia terminals, the digital television of prior art owing to there is not HDMI signal output function, can not satisfy the requirement of this respect.
The utility model content
Technical problem to be solved in the utility model is exactly the shortcoming at existing digital television audio frequency and video quality of output signals difference, and a kind of television set that can export the HDMI signal is provided.
The utility model solves its technical problem, and the technical scheme of employing is, the multi-media digital television machine comprises display unit, and digital signal processing unit is characterized in that: also comprise HDMI signal processing unit and HDMI signal output port; Described HDMI signal processing unit is connected with digital signal processing unit, and the digital audio-video signal that digital signal processing unit is exported carries out the HDMI coding, by HDMI signal output port output HDMI signal.
The beneficial effects of the utility model are, have improved the quality of digital television output signal, have given full play to the superiority of digital television, have strengthened the output interface ability of digital television.
Description of drawings
Fig. 1 is the circuit block diagram of embodiment.
Embodiment
Digital Television generally comprises digital signal processing unit and display unit.The analog signal of tuner (tuner) or signal input interface input, conversion becomes digital signal through A/D, sends into digital signal processing unit and carries out digitized processing.For the digital signal of input, then directly carry out digitized processing.Through the vision signal of digitized processing, the input display unit carries out digitlization and shows, or carries out subsequent treatment, as the D/A conversion, and row-field scanning, video drive amplifications etc. show so that drive CRT monitor.The audio unit that audio signal then is sent to Digital Television carries out subsequent treatment.
The utility model has increased HDMI signal processing unit and HDMI signal output port on digital television, digital audio/video (digital-AV) signal to digital signal processing unit output is shunted, take out a part of signal, behind the HDMI coding, export by the HDMI signal output port.
Embodiment
The HDMI signal processing unit that this is routine comprises buffer circuit, buffer amplifier circuit, HDMI encoder.Buffer circuit is connected between buffer amplifier circuit and the digital signal processing unit, digital audio-video signal to digital signal processing unit output is isolated shunting, taking out a part of signal sends into buffer amplifier circuit and cushions amplification, import the HDMI encoder encodes then, at last by the output of HDMI signal output port.Circuit structure is seen Fig. 1.
Technique scheme is all practicalities of digital television of LCD display unit, PDP display unit, led display unit and various back projection display units for display unit.
Because the physical circuit of HDMI signal processing belongs to mature technology, no longer describe in detail herein.Those of ordinary skill in the art according to foregoing description, can adopt various circuit to realize the technical solution of the utility model, and it all belongs to protection range of the present utility model.
Claims (6)
1. the multi-media digital television machine comprises display unit, and digital signal processing unit is characterized in that: also comprise HDMI signal processing unit and HDMI signal output port; Described HDMI signal processing unit is connected with digital signal processing unit, and the digital audio-video signal that digital signal processing unit is exported carries out the HDMI coding, by HDMI signal output port output HDMI signal.
2. multi-media digital television machine according to claim 1 is characterized in that: described display unit is the LCD display unit.
3. multi-media digital television machine according to claim 1 is characterized in that: described display unit is the PDP display unit.
4. multi-media digital television machine according to claim 1 is characterized in that: described display unit is a led display unit.
5. multi-media digital television machine according to claim 1 is characterized in that: described display unit is the back projection display unit.
6. according to the described multi-media digital television machine of above-mentioned any claim, it is characterized in that: described HDMI signal processing unit comprises buffer circuit, buffer amplifier circuit, HDMI encoder; Described buffer circuit is connected with digital signal processing unit; Described buffer amplifier circuit is connected with described buffer circuit and described HDMI encoder; Described HDMI encoder is connected with the HDMI signal output port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200328192U CN2788481Y (en) | 2005-01-13 | 2005-01-13 | Multi-media digital TV set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200328192U CN2788481Y (en) | 2005-01-13 | 2005-01-13 | Multi-media digital TV set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2788481Y true CN2788481Y (en) | 2006-06-14 |
Family
ID=36786774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200328192U Expired - Fee Related CN2788481Y (en) | 2005-01-13 | 2005-01-13 | Multi-media digital TV set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2788481Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150696B (en) * | 2007-10-19 | 2010-06-09 | 中兴通讯股份有限公司 | Method and device for improving receiving performance of high-definition multimedia interface |
| CN101458918B (en) * | 2007-12-10 | 2013-04-24 | 索尼株式会社 | High-definition multimedia interface receiver/transmitter chipset |
-
2005
- 2005-01-13 CN CNU2005200328192U patent/CN2788481Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150696B (en) * | 2007-10-19 | 2010-06-09 | 中兴通讯股份有限公司 | Method and device for improving receiving performance of high-definition multimedia interface |
| CN101458918B (en) * | 2007-12-10 | 2013-04-24 | 索尼株式会社 | High-definition multimedia interface receiver/transmitter chipset |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20060614 Termination date: 20140113 |