CN1725849A - TV. picturephone - Google Patents
TV. picturephone Download PDFInfo
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- CN1725849A CN1725849A CN 200410024508 CN200410024508A CN1725849A CN 1725849 A CN1725849 A CN 1725849A CN 200410024508 CN200410024508 CN 200410024508 CN 200410024508 A CN200410024508 A CN 200410024508A CN 1725849 A CN1725849 A CN 1725849A
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- 238000001514 detection method Methods 0.000 claims abstract description 9
- 230000006870 function Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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Abstract
A TV picture-phone can be realized by connecting public phone network or normal telephone set with unit which is prepared as connecting detection and control of TV set to I / O interface of multimedia digital signal processor , read only storage FLASH and random storage SDRAM to bus and control interface of said processor , modem to serial interface of said processor ; connecting serial interface, bus, control interface, universal I / O interface, VIDEO OUT interface and VIDEO IN interface of said processor to each other by high speed data bus in chip .
Description
Technical field the present invention relates to a kind of video telephone, specifically, is a kind of with the TV video telephone of television set as display unit.Belong to the multi-media communication technical field.
The existing video telephone product of background technology mainly contains following several types, one class is to be the video telephone of core with the PC, also dispose input/output units such as video camera (or small-sized image pickup head), microphone and loud speaker except that computer, its major defect is that the manufacturing use cost is higher.Another kind of is special-purpose video telephone, as one-piece type video telephone set, its display with flat ray picture tube and with ordinary flat ray picture tube (4-6 inch Liquid Crystal Module) as the video telephone set display, its image is little, distortion is big, cost is high, can't satisfy the visual demand that people improve day by day.The 3rd class is external TV set-top box, and such device is used TV AV port as terminal display, needs user's manual switchover state during its work, still be unrealized at present identification and control automatically, and it is still convenient inadequately to use.
Summary of the invention the objective of the invention is to overcome the deficiency of above-mentioned prior art and product, and provide a kind of TV video telephone, to be integrated in the television set based on the video telephone function of PSTN, and utilize television set, and realize that video telephone shows and the automatic switchover of TV watching as display terminal.
In order to achieve the above object, the present invention has adopted following technical scheme.
A kind of TV video telephone, comprise the multimedia digital signal processor, Video Decoder, camera, the television set Detection ﹠ Controling, telephone set, modulator-demodulator, random asccess memory SDRAM, read-only memory FLASH, video encoder is characterized in that: the analog video signal of camera collection is input to Video Decoder, the digital video signal output of Video Decoder, via VIDEO IN interface input multimedia digital signal processor, the digital video signal of multimedia digital signal processor output outputs to video encoder via VIDEO OUT interface, and video encoder output analog video signal is to the video processing circuit of television set; The television set Detection ﹠ Controling link to each other with the general purpose I/O interface of multimedia digital signal processor; Read-only memory FLASH links to each other with the bus and the control interface of multimedia digital signal processor with random asccess memory SDRAM; Modulator-demodulator is connected with the serial line interface of multimedia digital signal processor; Link to each other by the high speed data bus in the sheet between the VIDEO IN interface of multimedia digital signal processor, VIDEO OUT interface, general purpose I/O interface, bus and control interface, serial line interface.
The present invention is connected with public phone network, ordinary telephone set can realize the TV video telephone, it can be installed between ordinary telephone set and the television set, also can be embedded into television set inside, thereby expanded television function, make cost reduce significantly by resource-sharing, have that image is big, the genuine characteristics of color.And have automatic switchover, and easy to operate advantage can extensively be used in occasions such as family, hotel, hospital, schools, and promotional value is very huge.
Description of drawings Fig. 1 is a structural representation of the present invention.
Fig. 2 is the circuit theory diagrams of video digitizer circuit among the present invention.
Embodiment as shown in Figure 1, the present invention includes multimedia digital signal processor 1, Video Decoder 2, camera 3, television set Detection ﹠ Controling 4, telephone set 6, modulator-demodulator 7, random asccess memory SDRAM 8, read-only memory FLASH 9, video encoder 10, the analog video signal that camera 3 is gathered is input to Video Decoder 2, the digital video signal output of Video Decoder 2, via VIDEO IN interface input multimedia digital signal processor 1, the digital video signal of multimedia digital signal processor 1 output outputs to video encoder 10 via VIDEO OUT interface, and video encoder 10 output analog video signals are to the video processing circuit of television set; Television set Detection ﹠ Controling 4 link to each other with the general purpose I/O interface of multimedia digital signal processor 1; Read-only memory FLASH 9 links to each other with the bus and the control interface of multimedia digital signal processor 1 with random asccess memory SDRAM 8; Modulator-demodulator 7 is connected with the serial line interface of multimedia digital signal processor 1; Link to each other by the high speed data bus in the sheet between the VIDEO IN interface of multimedia digital signal processor 1, VIDEO OUT interface, general purpose I/O interface, bus and control interface, serial line interface.
Effect of above each several part (function) and type selecting for example are respectively:
Multimedia digital signal processor 1: be the powerful multimedia processor dsp chip of specialty, finish and real-time video carried out functions such as input and output processing, compression of video data and decompression, data communication.TriMedia series DSP as Dutch Philips company.
Video Decoder 2: the vision signal of the NTSC/PAL system of sampled analog input, the video data of the YUV4:2:2 form of decoding output CCIR656, input DSP.SAA7113 chip as Dutch Philips company.
Camera 3: the collection of picture intelligence has the above general camera of 100,000 pixels.
Television set Detection ﹠ Controling 4: finish the detection of the standby/operating states such as start use to television set, and judge corresponding states by software, the infra-red code that the emission corresponding state switches is carried out the control to television set.
Telephone set 6: the external ordinary telephone set, realize call function.
Modulator-demodulator 7: adopt the single-chip type MODEM front end that embeds, finish the communication transmission and the reception of pictorial data
Random asccess memory SDRAM 8: the temporal data when storing the operation of processed video data stream and main program.
Read-only memory FLASH 9: all program files of storing this autonomous system.
Video encoder 10: with the digital of digital video data of the YUV4:2:2 form of CCIR656, the displayable analog video signal of coding output offers television set.
Narrate operation principle of the present invention below.
User's off-hook is put through telephone set 6, calling has the phone of video telephone function, after modulator-demodulator 7 is shaken hands connection, multimedia digital signal processor 1 will carry out the software Real Time Compression by agreement H.263 from the dynamic image of camera 3 after the collection of digital video circuit, and the dynamic image after will compressing by modulator-demodulator 7 and local telephone 5 is transferred to the other side, and we's dynamic image also can show at we's television set AV simultaneously; Meanwhile, 1 pair of multimedia digital signal processor receives the other side's compression by modulator-demodulator 7 and local telephone 5 DID carries out the reduction of contracing of the real-time decompress(ion) of software by agreement H.263, be presented on we's the television set, thereby finish the transmission and the demonstration of visual image.
We's TV shows control: allow if television set is controlled when 1, the user is called, when multimedia digital signal processor 1 detects modulator-demodulator 7 and receives view data, according to current television set state of living in, launch corresponding infra-red code, finish control to television set.2, the other side's end of conversation, user's on-hook system disconnects the connection of modulator-demodulator 7, and simultaneity factor switches to the preceding operating state of conversation beginning with our television set.
Claims (1)
1, a kind of TV video telephone, comprise multimedia digital signal processor (1), Video Decoder (2), camera (3), television set Detection ﹠ Controling (4), telephone set (6), modulator-demodulator (7), random asccess memory SDRAM (8), read-only memory FLASH (9), video encoder (10) is characterized in that: the analog video signal that camera (3) is gathered is input to Video Decoder (2), the digital video signal output of Video Decoder (2), via VIDEO IN interface input multimedia digital signal processor (1), the digital video signal of multimedia digital signal processor (1) output outputs to video encoder (10) via VIDEO OUT interface, and video encoder (10) output analog video signal is to the video processing circuit of television set; Television set Detection ﹠ Controling (4) link to each other with the general purpose I/O interface of multimedia digital signal processor (1); Read-only memory FLASH (9) links to each other with the bus and the control interface of multimedia digital signal processor (1) with random asccess memory SDRAM (8); Modulator-demodulator (7) is connected with the serial line interface of multimedia digital signal processor (1); Link to each other by the high speed data bus in the sheet between the VIDEO IN interface of multimedia digital signal processor (1), VIDEO OUT interface, general purpose I/O interface, bus and control interface, serial line interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410024508 CN1725849A (en) | 2004-07-21 | 2004-07-21 | TV. picturephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410024508 CN1725849A (en) | 2004-07-21 | 2004-07-21 | TV. picturephone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1725849A true CN1725849A (en) | 2006-01-25 |
Family
ID=35925060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410024508 Pending CN1725849A (en) | 2004-07-21 | 2004-07-21 | TV. picturephone |
Country Status (1)
| Country | Link |
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| CN (1) | CN1725849A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1921578B (en) * | 2006-09-01 | 2010-04-21 | 海信集团有限公司 | Storage space extending circuit and television within this extending circuit |
| CN101179690B (en) * | 2007-12-17 | 2011-05-04 | 华为终端有限公司 | Video telephone communicating method, system and terminal thereof |
| CN101188728B (en) * | 2006-11-21 | 2012-05-23 | 三星电子株式会社 | Display apparatus having video call function, method thereof, and video call system |
-
2004
- 2004-07-21 CN CN 200410024508 patent/CN1725849A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1921578B (en) * | 2006-09-01 | 2010-04-21 | 海信集团有限公司 | Storage space extending circuit and television within this extending circuit |
| CN101188728B (en) * | 2006-11-21 | 2012-05-23 | 三星电子株式会社 | Display apparatus having video call function, method thereof, and video call system |
| CN101179690B (en) * | 2007-12-17 | 2011-05-04 | 华为终端有限公司 | Video telephone communicating method, system and terminal thereof |
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Owner name: SHANDONG JUNHUA ELECTRONIC SCIENCE CO., LTD. Free format text: FORMER OWNER: YANTAI SHIHUABAO SOFTWARE SCIENCE + TECHNOLOGY CO LTD Effective date: 20070803 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20070803 Address after: 265600 hi tech information industry city, Fushan District, Shandong City, Yantai Province Applicant after: Shandong Junhua Electronic Technology Co., Ltd. Address before: 440, room 3, building 32, Shandong, 264006, Zhujianglu Road, Yantai Development Zone, Sichuan Province Applicant before: Yantai Shihuabao Software Science & Technology Co Ltd |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |