CN201054689Y - A multi-media receiving video/audio terminal - Google Patents
A multi-media receiving video/audio terminal Download PDFInfo
- Publication number
- CN201054689Y CN201054689Y CNU2007201203193U CN200720120319U CN201054689Y CN 201054689 Y CN201054689 Y CN 201054689Y CN U2007201203193 U CNU2007201203193 U CN U2007201203193U CN 200720120319 U CN200720120319 U CN 200720120319U CN 201054689 Y CN201054689 Y CN 201054689Y
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Abstract
The utility model discloses a multimedia receiving audio-visual terminal. The terminal includes a video decoding and processing unit, an audio decoder, a mirco-control unit, a display unit, a power amplifier, an audio and video interface, and a loudspeaker. The utility model is characterized in that the audio and video interface includes a digital video interface, a video image array interface, a video interface, a two-component video interface, a high definition component video interface, a high definition multimedia interface, a HDMI decoder, and a digital analog converter. The utility model removes the functions in the prior art that the users do not need to use, reduces the resource waste, avoids the interference of the high-frequency signal, improves the picture quality of the image, and has rich popular audio and video equipment interfaces.
Description
Technical field
The utility model relates to multimedia audiovisual terminal.
Background technology
Current, television set is undoubtedly the multimedia audiovisual recreation center of family.Simultaneously, Digital Television has been popularized in a lot of cities, thereby digital TV set-top box will become the indispensable equipment of family's TV reception, the Core Feature of traditional analog television machine---high frequency receives (high-frequency tuning) part and has lost effect fully in the family that uses Digital Television, and the television set of main flow sale in the market all also has simulation high-frequency tuner and circuit.Regular display is owing to mainly use at PC, size is general only below 20 cun, and its functional interface seldom, and the abundantest also have only VGA, DVI and S-VIDEO interface, is not suitable for that family uses and the main flow interface is the digital TV set-top box use of coaxial (RCA) terminal.Like this, what cooperate the digital TV set-top box use has had only television set, but concerning digital cable customers, but do not need to use the major function of television set, be the analog broadcasting receiving function, and only need use its additional function, so use the user of top box of digital machine also will buy television set, waste resource and cost, increased consumer's burden; And television set has high-frequency tuning and intermediate frequency amplifier circuit, may cause interference to other video reception, influence image quality, though having done to disturb on circuit, suppress and interference protection measure by many television sets, greatly reduced the interference of high-frequency signal to other vision signal, but increased cost, the increase of circuit has also influenced the television set reliability.
The utility model content
The technical problems to be solved in the utility model provides a kind of multimedia audiovisual terminal, removes the unwanted high-frequency tuner of digital TV set-top box user, high-frequency tuning interlock circuit and intermediate frequency amplifier circuit, integrates the interface of the audio ﹠ video equipment of existing main flow.
For solving the problems of the technologies described above, the purpose of this utility model is achieved through the following technical solutions.
A kind of multimedia receiving said audiovisual terminal comprises video decode and processing unit, audio decoder, micro-control unit, display unit, power amplifier, audio-video interface, loudspeaker; Described audio-video interface comprises: digital visual interface DVI, Video Graphics Array interface VGA, video interface VIDEO, two component vide interface S-VIDEO, high definition component vide interface YPBPR, HDMI (High Definition Multimedia Interface) HDMI; Also comprise HDMI decoder, digital to analog converter;
The vision signal of described interface DVI, VGA, VIDEO, S-VIDEO, YPBPR all links to each other with the audio decoder data with video decode and processing unit, audio signal, the vision signal of its reception exports video decode and processing unit to, and the audio signal output of reception is to audio decoder;
Described HDMI interface control signal links to each other with the micro-control unit controls interface, and data flow is through the HDMI decoder, and the vision signal that wherein decodes enters video decode and processing unit, digital to analog converter links to each other with audio decoder;
Described video decode and processing unit comprise functions such as video decode, optimization, SCALE (convergent-divergent), signal format conversion, and it links to each other with described display unit, export the processed video signal to display unit with the data format of standard;
Described power amplifier data one end connects audio decoder, and the other end connects loudspeaker, exports the output signal of audio decoder to power amplifier and reach loudspeaker after power amplification;
Described micro-control unit and video decode and processing unit, audio decoder are connected, and control its signal.
Wherein, shared between described DVI and VGA interface and the audio decoder have one road stereophone terminal, shared between described VIDEO and S-VIDEO interface and the audio decoder have a coaxial or optic fibre connector of one road audio frequency, between described YPBPR interface and the audio decoder the coaxial or optic fibre connector of one road audio frequency arranged.
Wherein, the shared audio frequency terminal of described DVI and VGA is that the diameter consistent with PC audio output is the stereophone terminal of 3.5mm.
Above technical scheme the utlity model has following beneficial effect as can be seen:
1) having removed user in the prior art does not need the function used, reduces the wasting of resources.
2) avoid the interference of high-frequency signal, improved the image quality of image.
3) has the audio ﹠ video equipment interface of abundant existing main flow.
Description of drawings
Fig. 1 is a multimedia receiver, video terminal inner theory diagram of the present utility model.
Embodiment
The utility model is on the basis of traditional analog television receiver, integrate the interface of the audio ﹠ video equipment of existing main flow, removal is to unwanted high-frequency tuner of digital TV set-top box user and high-frequency tuning interlock circuit, make this multimedia receiving said audiovisual terminal not be with the common simulation TV functions, can be fit to all audio ﹠ video equipments of family again more and use, economize on resources and cost.
For ease of the utility model is further understood, now in conjunction with the accompanying drawings the utility model method is described in detail.
See also the utility model structure chart shown in Figure 1, this multimedia receiving said audiovisual terminal comprises video decode and processing unit, audio decoder, MCU (micro-control unit), display unit, AMP (power amplifier), audio-video interface, loudspeaker.
Wherein, audio-video interface comprises: DVI (digital visual interface), VGA (Video Graphics Array interface), VIDEO (video interface), S-VIDEO (two component vide interfaces), YPBPR (high definition component vide interface), HDMI (HDMI (High Definition Multimedia Interface)); These interfaces are respectively applied for and receive DVI signal, VGA signal, VIDEO signal, S-VIDEO signal, YPBPR signal, HDMI signal; Also comprise HDMI decoder, DAC (digital to analog converter).
Interface DVI, VGA, VIDEO, S-VIDEO, YPBPR all link to each other with video decode and processing unit, audio decoder data, and the vision signal of its reception exports video decode and processing unit to, and the audio signal output of reception is to audio decoder; The HDMI interface links to each other with the micro-control unit data, also links to each other with audio decoder through HDMI decoder, DAC successively; Video decode and processing unit link to each other with display unit, export display unit to after received vision signal is handled; Power amplifier data one end connects audio decoder, and the other end connects audio decoder, reaches loudspeaker after the output signal power amplification with audio decoder; MCU and video decode and processing unit, audio decoder are connected, and control its signal.
The function of video decode and processing unit is: for VIDEO and S-VIDEO signal, earlier the signal light tone is separated, signal to different S-SYSTEMs carries out colour decoding then, after blueness difference that decodes and red color difference signal carry out analog-to-digital conversion, handle R, G, the B signal that obtains numeral through matrix, after export to display unit after SCALE (convergent-divergent control) and the visual optimization process; For YPBPR and VGA signal,,, export to display unit after treatment so only need signal is carried out analog-to-digital conversion because colour signal is separated; For the DVI signal,,, directly after optimization process, export to display unit so need not decode and analog-to-digital conversion because this signal is digital.
Wherein, after the HDMI interface receives signal, transmit the signal to MCU identification KEY (key) earlier, just exporting digital audio-video signal and clock signal to HDMI decoder when the signal source end confirms that this multimedia receiver terminal has legal KEY decodes, the vision signal that solves reaches video decode and processing unit, and the audio signal that solves is reduced into the I2S signal and reaches audio decoder after the digital to analog converter conversion.
Audio decoder is used for the signal of distinct interface input is carried out channel selecting, again through mould/number conversion, after audio and volume control and treatment, exports power amplifier to behind the D/A switch again, sounds by loudspeaker at last.
MCU is used to receive the remote keying signal, and each functional unit is controlled.
Shared one road audio stereo terminal of above-mentioned DVI and VGA, shared one road audio frequency RCA terminal of VIDEO and S-VIDEO, YPBPR uses one road audio frequency RCA terminal separately; PC goes up and uses because DVI, VGA interface are everlasting, thus the shared audio frequency terminal of DVI and VGA adopt with the sub consistent diameter of PC audio output be the stereophone terminal of 3.5mm.
More than the internal work principle of multimedia receiving said audiovisual terminal provided by the utility model is described in detail, this terminal system is installed on the structure of any television set or display, can be combined into a complete operational multimedia receiving said audiovisual equipment, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (3)
1. a multimedia receiving said audiovisual terminal comprises video decode and processing unit, audio decoder, micro-control unit, display unit, power amplifier, audio-video interface, loudspeaker; It is characterized in that described audio-video interface comprises: digital visual interface DVI, Video Graphics Array interface VGA, video interface VIDEO, two component vide interface S-VIDEO, high definition component vide interface YPBPR, HDMI (High Definition Multimedia Interface) HDMI; Also comprise HDMI decoder, digital to analog converter;
The vision signal of described interface DVI, VGA, VIDEO, S-VIDEO, YPBPR all links to each other with the audio decoder data with video decode and processing unit, audio signal, the vision signal of its reception exports video decode and processing unit to, and the audio signal output of reception is to audio decoder;
Described HDMI interface control signal links to each other with the micro-control unit controls interface, and data flow is through the HDMI decoder, and the vision signal that wherein decodes enters video decode and processing unit, digital to analog converter links to each other with audio decoder;
Described video decode and processing unit comprise functions such as video decode, optimization, SCALE (convergent-divergent), signal format conversion, and it links to each other with described display unit, export the processed video signal to display unit with the data format of standard;
Described power amplifier data one end connects audio decoder, and the other end connects loudspeaker, exports the output signal of audio decoder to power amplifier and reach loudspeaker after power amplification;
Described micro-control unit and video decode and processing unit, audio decoder are connected, and control its signal.
2. multimedia receiving said audiovisual terminal according to claim 1, it is characterized in that, shared between described DVI and VGA interface and the audio decoder have one road stereophone terminal, shared between described VIDEO and S-VIDEO interface and the audio decoder have a coaxial or optic fibre connector of one road audio frequency, between described YPBPR interface and the audio decoder the coaxial or optic fibre connector of one road audio frequency arranged.
3. as multimedia receiving said audiovisual terminal as described in the claim 2, it is characterized in that the shared audio frequency terminal of described DVI and VGA is that the diameter consistent with PC audio output is the stereophone terminal of 3.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201203193U CN201054689Y (en) | 2007-05-24 | 2007-05-24 | A multi-media receiving video/audio terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201203193U CN201054689Y (en) | 2007-05-24 | 2007-05-24 | A multi-media receiving video/audio terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201054689Y true CN201054689Y (en) | 2008-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201203193U Expired - Fee Related CN201054689Y (en) | 2007-05-24 | 2007-05-24 | A multi-media receiving video/audio terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201054689Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882411A (en) * | 2010-07-22 | 2010-11-10 | 福建捷联电子有限公司 | Liquid crystal display with digital multi-media player function |
| CN103108110A (en) * | 2011-11-10 | 2013-05-15 | 浙江南北联合信息科技有限公司 | Digital court hearing main unit and digital court hearing system |
| CN103369310A (en) * | 2012-03-26 | 2013-10-23 | 杭州竣颐科技有限公司 | Multimedia wireless transmission method |
-
2007
- 2007-05-24 CN CNU2007201203193U patent/CN201054689Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882411A (en) * | 2010-07-22 | 2010-11-10 | 福建捷联电子有限公司 | Liquid crystal display with digital multi-media player function |
| CN103108110A (en) * | 2011-11-10 | 2013-05-15 | 浙江南北联合信息科技有限公司 | Digital court hearing main unit and digital court hearing system |
| CN103108110B (en) * | 2011-11-10 | 2016-08-17 | 浙江南北联合信息科技有限公司 | A kind of digital court trial main frame and digital court trial system |
| CN103369310A (en) * | 2012-03-26 | 2013-10-23 | 杭州竣颐科技有限公司 | Multimedia wireless transmission method |
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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: 20080430 Termination date: 20110524 |