CN1312649A - Interactive watching-recording change-over controller for intelligent TV network - Google Patents
Interactive watching-recording change-over controller for intelligent TV network Download PDFInfo
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- CN1312649A CN1312649A CN 00103323 CN00103323A CN1312649A CN 1312649 A CN1312649 A CN 1312649A CN 00103323 CN00103323 CN 00103323 CN 00103323 A CN00103323 A CN 00103323A CN 1312649 A CN1312649 A CN 1312649A
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Abstract
The intelligent network TV interactive receiving-recording conversion operation control equipment is characterized by that its control circuit includes CPU, image compression circuit and decompression circuit, the voice output and video output of high-frequency receiving circuit are connected with image compression circuit respectively by means of voice and video A/D conversion circuits, the image compression circuit is connected with decompression circuit, and the image compression circuit is connected with memory of computer control board by means of PCI terminal, and the central controller (MCU) interface wire can be respectively connected with control ends of above-mentioned all circuits. Said invention can be combined with computer, and can collect, store, convert and display voice and video signals of TV transferred by current TV network and intelligent network and make processing of control instruction of related operation.
Description
The present invention relates to a kind of can the combination, the interactive watching-recording change-over controller for intelligent TV network that the control command of television audio, video signal collective, storage, conversion demonstration and the associative operation that current TV broadcast network, intelligent network are transmitted etc. is handled with computer.
In modern's life, everybody has be unable to do without TV at the free life amusement and recreation.TV becomes the main communication media behind newspaper, radio station already.People obtain more, vivider, more lively information by TV.But, when we face these abundant programs, do not know how to select any platform program, need carefully search the TV newspaper, also can can't see TV sometimes because of the work reason on time.In addition, we will ceaselessly change platform and just can find the program of liking ourselves when watching TV programme, want that sometimes the program of seeing also has conflict, have so both wanted to watch this, do not want to abandon another again, can existing equipment can't satisfy our needs.Have, people usually need the graph text information recording previously selected TV programme or broadcast by TV again.The present mode of recording generally is to instruct by setting timed recording at the video tape recorder that is connected with TV, and reaches the purpose of recording.Because TV programme is revised at any time often or is adjusted, therefore, often be difficult to record existing timed recording TV programme on time, this point has also limited the more utilizations of people to television media information, even and recorded program in time, often owing to the ad content that intercuts in the program has destroyed protopodium purpose globality and continuity.As along with computer and development of internet technology, utilize Network Transmission also to enter our life through the pictorial information of overcompression, still, this pictorial information is that its image quality is subjected to the restriction of network and is difficult to lively reproduction by the telephone wire transmission.Interaction mode is intelligently watched so existing technology can not satisfy, the requirement of recording TV program.Along with further developing of computer technology and network, various information household appliances are constantly gushed out like the mushrooms after rain, for example the transition card that the picture inversion on the computer can be shown by common television set, picture intelligence is transformed in the computer collecting cassette and TV signal is received the TV card of watching TV programme by the display of computer by video heads.Existing these so-called information household appliances or area of computer aided facility, because the restriction of circuit structure, the problem that all has inferior quality after function singleness, complicated operation, the conversion of signals, for with television set during as the display of computer, often the shown image deflects degree of television set is big, is difficult to carry out practical operation; And utilize video heads that picture intelligence is transformed into collecting cassette in the computer, simple signals collecting can only be finished again, and the TV signal of TV network propagation can not be gathered; After the TV signal reception, watch the TV card of TV programme again by the display of computer, just realized the display of computer is worked as the function of used as television, do not utilize the disposal ability of computer itself that computer and television set are combined effectively, finish timed recording, storage, play so that the multiple interactive controlled function such as program selection that connection online etc. utilize intelligent network to finish by television set or computer display again.
The objective of the invention is at the deficiency of prior art and a kind of intelligent TV network interactive operation control device is provided, it combines with computer, intelligent network, processing such as demonstration, transmission can be gathered, store, changed to television audio, the vision signal of current TV broadcast network delivery, and can receive the control command information that intelligent network sends of handling.
The object of the present invention is achieved like this: a kind of interactive watching-recording change-over controller for intelligent TV network, it comprises the high frequency receiving circuit connection control circuit that receives television audio, vision signal, control circuit connects audio frequency, video output circuit, and control circuit is connected on the computer panel by the pci interface circuit.Wherein said control circuit comprises central processing unit and image compression circuit, decompression circuit; The audio frequency of described high frequency receiving circuit, video output resemble compressor circuit by audio frequency, video mould/number conversion circuit map interlinking respectively, and image compression circuit connects decompression circuit, and image compression circuit connects the memory of computer panel by the PCI terminal; Central controller (MCU) mouthful line connects above-mentioned each circuit control end respectively.
Central controller also is connected to remote controller decoding receiving unit circuit.
The video reception circuit also is connected to outside S terminal video input.
According to the technique scheme analysis as can be known, the present invention has simple and reasonable for structure, advantage such as multiple functional, the computer digital conversion storage of audio-video signal of TV network and the television set display simulation conversion of computer network digital information have been realized, effectively home television set and computer, network are combined, and it is simple to operate, easy to use, study flexibly, when realizing including operation control by network, the program that also can finish the ad content that shielding intercuts such as accurately records at function.
The present invention is described in further detail below in conjunction with accompanying drawing and specific embodiments.
Fig. 1 constitutes block diagram for the present invention;
Fig. 2 is the present invention and PC pci interface partial circuit schematic diagram;
Fig. 3 receives composite audio, vision signal output circuit theory diagrams for high frequency of the present invention;
Fig. 4 is vision signal mould of the present invention/number conversion processing section circuit theory diagrams;
Fig. 5 is audio signal mould of the present invention/number conversion processing and D/A switch output circuit theory diagrams;
Fig. 6 is picture coding compression section circuit theory diagrams of the present invention;
Fig. 7 is the present invention's image decompression partial circuit schematic diagram;
Fig. 8 is vision signal digital-to-analogue code conversion output circuit theory diagrams of the present invention;
Fig. 9 receives output conversion portion circuit theory diagrams for PC output video information of the present invention to the television video signal;
Figure 10 is central controller of the present invention and remote controller reception control section circuit theory diagrams.
Referring to Fig. 1-10, the present invention is a kind of interactive watching-recording change-over controller for intelligent TV network, and its control circuit comprises central processing unit and image compression circuit, decompression circuit; The audio frequency of high frequency receiving circuit, video output resemble compressor circuit by audio frequency, video mould/number conversion circuit map interlinking respectively, and image compression circuit connects decompression circuit, and image compression circuit connects the memory of computer panel by the PCI terminal; Central controller (MCU) mouthful line connects above-mentioned each circuit control end respectively.
As shown in figure 10, the operating state of each chip of The whole control circuit of the present invention can be controlled by central controller W78E54B, realize management such as reception, tuner source of sound, extraneous source of sound, finish work such as the infrared reception decoding of remote controller, control command transmission simultaneously.
As shown in Figure 3, high frequency of the present invention receives composite audio, vision signal output circuit theory diagrams.The present invention adopts the FI1256MK2 chip, is used for the high frequency TV signal receiver turning of multimedia card, can accept the 1-58 channel, output composite video signal (simulation) and monophonic signal (simulation).And for example shown in Figure 4, vision signal is exported to SAA7113 video signal digitization decoder, the decoding video signal of video that this chip can be imported to external world or S-video and the output of TV high-frequency tuner, and, pass to W99200F and do MPEG-1 real-time video compression use through obtaining the vision signal of number format behind the ADC.Referring to Fig. 5, UDA1340 " the stereo digital interface of stereo audio signal mould/number conversion (ADC)/D/A switch (DAC) band 12S standard; can send the audio signal that the monophonic audio signal of the stereo/monophonic audio signal of external world's input or the output of TV high-frequency tuner carries out the number format that ADC obtains to W99200F and carry out hybrid coding; form MOEG-1 video/audio bit stream data; this chip can receive the digital audio code stream from W9926 decoding output; exporting; can be monophony, can be dual track after D/A switch (DAC) obtains simulated audio signal.
Referring to Fig. 6,10, be picture coding compression section circuit theory diagrams of the present invention and central controller and remote controller reception control section circuit theory diagrams.Picture coding compression section circuit W99200F is the MPEG-1 encoder, is that this device is gone up unique and PCI groove the chip of signal in linking to each other arranged.After receiving the digital audio and video signals that digital video signal that SAA711 3 sends here and UNA1340 send here, carry out real-time coding by the MPEG-1 form respectively, mix, the MPEG-1 code stream of formation is passed to PC through the PCI groove, with the information stores after the compression in PC.When it is not encoded as MPEG-1, can be used as the signal bridge circuit, be communicated with data-signal, interrupt signal and I2C signal etc. between last each chip of this device and the PC system.For example control intelligent network from TV interaction and receive control command, can give other circuit parts by transmitting this chip when PC.
As shown in Figure 7, be the present invention's image decompression partial circuit schematic diagram.The present invention decompresses and adopts the W9926:MPEG-1 decoder, can decode to the MPEG-1 code stream, and the digital audio and video signals of output I2C form is delivered to UDA1340 and carried out DAC, and the output digital signal is delivered to W9952, and to carry out video synthetic.
For the vision signal output, the present invention adopts the W9952 video coder, shown in Fig. 8 vision signal digital-to-analogue code conversion output circuit theory diagrams, it can be encoded to the digital video signal of W9926 decoding output, DAC again, the composite video signal (being composite video) or the S-vision signal of output PAL or TSC-system formula.
As shown in Figure 9, when needs propose the decompression pictorial information when television set is play from PC, the present invention adopts AIT138: video image signal array (VGA) is to the functional chip of TV.This chip has also adopted SDDRAM to make the data buffering, can be to the VGA signal intelligent identification of input.
The course of work of the present invention is: this device high frequency receiving unit receives the signal of televising of television network, and Real Time Compression forms the MPEG-1 code stream, because therefore one section one section transmission of Real Time Compression of the present invention also can realize functions such as instant playback.PC W99200F opens I2C, locks the channel that FI1256MK2 should receive by I2C; Allowing W78E54B switch SAA7113 by I2C only opens the tuner video input channel, switches the signal that UDA1340 only accepts the tuner voice-grade channel; PC is provided with W99200F and is in MPEG-1 Real Time Compression operating state, can obtain the MPEG-1 code stream endlessly, and this code stream is write the file that hard disk promptly forms MPEG-1.
During this time if operated instant recovery function key, then the PC MPEG-1 code stream that is in Real Time Compression by the PCI bridge of W99200F is passed PC back and PC is passed to W9926 time-sharing multiplex state to the MPEG-1 data of preserving through the PCI bridge from W99200F, when instant playback, can not influence the Real Time Compression storage of MPEG-1, the operating efficiency that depends on foreground software, the service efficiency of pci bus bandwidth (33MB/S) and W99200F work in Real Time Compression and abandon the switch speed and the synchronous regime of PCI right to use two states, and this point will be come really by debug results in the future.
If will occur automatic rolling captions (OSD) on TV, when then PC can be given W9926 along with transmission MPEG-1 code stream, pass to OSD order and osd data to W9926, realize corresponding demonstration.
During this time if operated the instant playback key of Infrared remote controller, then W78E54B can keep changing order on I2C, wait for the timing inquiry of PC system, always have an opportunity to allow the PC system know the button operation of infrared remote controller, can carry out afterwards and above-mentionedly can put operation immediately accordingly.
When realizing that the normal speed of MPEG-1 (non-) is play, PC is provided with W99200F, make it abandon PCI and use claim, authorize profit to require W992OF it, can be by interrupting the decoding operating state of W9926, transmit the MPEG-1 code stream by normal speed or normal speed (put soon, put slowly) and give W9926, realize the corresponding function that reclaims.
At timed recording, timing Play Control, record in the time of can setting by timer control, playing function.
Operate by I2C, W78E54B can obtain corresponding the switching order is set, and carries out corresponding the switching, allows the composite video of output or S-video switch give AIT2138, AIT2138 also can obtain relevant register from I2C order is set, so that it is better that the TV image is shown.
Claims (3)
1, a kind of interactive watching-recording change-over controller for intelligent TV network, it comprises the high frequency receiving circuit connection control circuit that receives television audio, vision signal, control circuit connects audio frequency, video output circuit, control circuit is connected on the computer panel by the pci interface circuit, it is characterized in that: described control circuit comprises central processing unit and image compression circuit, decompression circuit; The audio frequency of described high frequency receiving circuit, video output resemble compressor circuit by audio frequency, video mould/number conversion circuit map interlinking respectively, and image compression circuit connects decompression circuit, and image compression circuit connects the memory of computer panel by the PCI terminal; Central controller (MCU) mouthful line connects above-mentioned each circuit control end respectively.
2, interactive watching-recording change-over controller for intelligent TV network according to claim 1 is characterized in that: central controller also is connected to remote controller decoding receiving unit circuit.
3, interactive watching-recording change-over controller for intelligent TV network according to claim 1 is characterized in that: the video reception circuit also is connected to outside S terminal video input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00103323 CN1312649A (en) | 2000-03-06 | 2000-03-06 | Interactive watching-recording change-over controller for intelligent TV network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 00103323 CN1312649A (en) | 2000-03-06 | 2000-03-06 | Interactive watching-recording change-over controller for intelligent TV network |
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| CN1312649A true CN1312649A (en) | 2001-09-12 |
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| CN 00103323 Pending CN1312649A (en) | 2000-03-06 | 2000-03-06 | Interactive watching-recording change-over controller for intelligent TV network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1870760B (en) * | 2005-05-29 | 2010-05-26 | 鸿富锦精密工业（深圳）有限公司 | TV card function testing system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1870760B (en) * | 2005-05-29 | 2010-05-26 | 鸿富锦精密工业（深圳）有限公司 | TV card function testing system and method |
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