CN201131015Y - Television set with recording and time-shifting function - Google Patents
Television set with recording and time-shifting function Download PDFInfo
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- CN201131015Y CN201131015Y CNU200720196182XU CN200720196182U CN201131015Y CN 201131015 Y CN201131015 Y CN 201131015Y CN U200720196182X U CNU200720196182X U CN U200720196182XU CN 200720196182 U CN200720196182 U CN 200720196182U CN 201131015 Y CN201131015 Y CN 201131015Y
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- 230000006870 function Effects 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000005236 sound signal Effects 0.000 abstract description 3
- 230000003993 interaction Effects 0.000 abstract 1
- 230000005055 memory storage Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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Abstract
The utility model discloses a television with recording and time shifting functions, which comprises a television module and a PVR module, the television module comprises an MCU, an image/audio processor and a video transfer switch, the PVR module comprises an MCU, a multimedia processor and a memorizer, the MCU of the television module and the MCU of the PVR module perform interaction control communication via a serial port. When recording, the multimedia processor receives CVBS and sound signal output by the image/audio processor, and the CVBS and the sound signal is stored into the memorizer after being decoded and coded; when replaying, the data can be read out from the memorizer and after being decoded and coded, the data is sent to the television module in the form of YbPr signals. The multimedia processor is a MEPG-2 multimedia processor and a decoder/coder which is arranged inside the processor is the MEPG-2 decoder/coder. The television has the advantages that the television can realize recording and replaying of high quality television and video signals via the television and support high definition content display, being a television platform of great entertainment.
Description
[technical field]
The utility model relates to TV tech, relates in particular to a kind of television set of recording with time-shifting function that has.
[background technology]
Personal video record (Personal Video Recorder) is present emerging a kind of technology that is applied on the TV, it is by TV and the AV signal of decoding and coding device built-in on the PVR module on can record tv, realize television content time shift (but content that playback has been play) and recording and storing, can also play the multimedia file of user storage simultaneously.
Can only encode with MPEG-1 with the TV of PVR module on the market at present and record, program content information loss after recording is more, definition is fallen much now than protopodium, influences the user and watches, can not support the broadcast of high definition (as 1080i/P) signal content simultaneously.Common MLC NAND Flash speed has only lowlyer in the PVR module, and also the speed that does not catch up with system because of the speed of Flash influences the performance of whole system.
[summary of the invention]
The technical problems to be solved in the utility model provides and a kind ofly can realize high quality television, video signal recording and playback, may support the television set that high-definition content is play.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of have a television set of recording with time-shifting function, comprise television module and PVR module, described television module comprises MCU, image/audio process and video switch switch, and described PVR module comprises MCU, multimedia processor and memory; Television module MCU and PVR module MCU control communication mutually by serial ports; When recording, multimedia processor receives the CVBS and the voice signal of image/audio process output, is stored in memory behind the decoding and coding; During playback, sense data from memory, carry out decoding and coding after, send to television module with the YPbPr signal; Described multimedia processor is the MEPG-2 multimedia processor, and the separating of dress in it/encoder is that MEPG-2 separates/encoder.
Above-described have a television set of recording with time-shifting function, and described memory is SLC NAND Flash memory preferably.Described memory can also comprise external memory, and described SLC NAND Flash is connected with multimedia processor by usb hub with external memory.Described usb hub can be GL850A.
Above-described have a television set of recording with time-shifting function, and described multimedia processor can be the RTD1261 integrated circuit.Described video switch switch can be the TS5V330 integrated circuit.
The utility model is by on the TV platform of maturation, the separating of dress in carry utilizing/encoder is that MEPG-2 separates/PVR module that the multimedia processor of encoder is set up, available MPEG-2 coding is realized TV, video signal recording and time shift programme content, true reappearance original signal content also supports the high-definition content that is up to 1080P to play simultaneously.
NAND Flash memory of the present utility model is as adopting big capacity SLC NAND Flash memory, then the further performance of elevator system.
[description of drawings]
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 the utlity model has the theory diagram of recording with the television set embodiment of time-shifting function.
Fig. 2 the utlity model has the theory diagram of recording with the television set embodiment PVR module of time-shifting function.
Fig. 3 the utlity model has the schematic diagram of recording with the television set embodiment video switch switch of time-shifting function.
[embodiment]
The utlity model has record with the operation principle of the television set embodiment of time-shifting function as shown in Figure 1 to Figure 3.
Under the AV/TV information source, when TV is received the record command that remote controller sends, the original program of the normal demonstration of video screen itself, and CVBS signal of television decoder (decoder generally is integrated in the master chip now) being exported on the backstage and voice signal send the TV decoder through MEPG-2 multimedia processor integrated circuit (IC) chip RTD1261 in the PVR module to, after operational amplifier amplifies and through the audio signal that AD changes, be encoded into MPEG-2 stream together, write external memory storage or write inner jumbo SLC NAND Flash memory by the flash controller again by usb hub GL850A.
When TV is received the time shift order, TV switches information source on the backstage, CVBS and voice signal are passed to the TV decoder of PVR module RTD1261, DSP is issued on one road signal road, decoding back, after carrying out the MPEG-2 coding, write external memory storage or inner jumbo SLC NAND Flash memory by usb hub GL850A; When the user sends for the previous period video of order request playback, MEPG-2 multimedia processor integrated circuit (IC) chip RTD1261 reads the signal of storage just now from memory, after carrying out the MPEG-2 decoding, image signal encoding becomes the YPbPr signal, voice signal sends back to television module with the output of IIS signal and through the DA conversion, and the audio frequency and video diverter switch of television module switches to this road signal and displays it at this moment.
The PVR module is when playing high-definition content (as 1080P), the DSP that elder generation sends into MEPG-2 multimedia processor integrated circuit (IC) chip RTD1261 from the external memory storage reading of data carries out the MPEG-2 decoding, it is the YPbPr picture signal that decoding back image is sent into the TV encoder encodes, and voice signal sends back to television module jointly with the output of IIS signal and after the DA conversion.
As shown in Figure 2, PVR module work implementation example:
After the PVR module receives CVBS and voice signal, CVBS carries out video decode through the TV of RTD1261 inside decoder, sound is sent into AD earlier and is converted to IIS after amplifier is amplified, DSP in vision signal is sent into RTD1261 carries out the MPEG-2 coding then, set according to the user, the mpeg2 code stream is through usb hub GL850A or send into inner NAND Flash memory, or sends into external memory storage.Usb hub GL850A reads the mpeg2 code stream from external memory storage or inner NAND Flash, send into DSP and carry out the MPEG-2 decoding, it is the YPbPr signal that decoded picture signal is sent to the TV encoder encodes, and voice signal sends back to TV with the output of IIS signal and through the DA conversion.
As shown in Figure 3, video switch switch implementation example:
After the PVR module reads the interior file of external USB memory, is the passage of the TS5V330 of TI company with conversion of signals for the video switch switch I C present embodiment that the YPbPr signal sends television module main signal plate to, another passage of video switch switch TS5V330 connects the outside YPbPr terminal of television set, and this YPbPr terminal can receive the YPbPr signal of external equipment (as DVD).The control signal Control that the MCU of television module sends is connected to the IN pin of video switch switch, by the Control signal, the output signal that the MCU of television module can control TS5V330 is from the multi-media signal of PVR or from the multi-media signal of outside.
The present invention utilizes the jumbo SLC NAND of the RTD1261 master chip collocation high-quality Flash of Realtek company, available MPEG-2 coding is realized TV, video signal recording and time shift programme content, true reappearance original signal content also supports the high-definition content that is up to 1080P to play simultaneously.The hardware and software platform of TV part and PVR part all is relatively independent platform, both control communication mutually by the UART mouth, the MCU of TV receives remote signal, handles the back and sends to the PVR module by the UART mouth, and PVR carries out corresponding action by the instruction that receives.When PVR records, receive CVBS and voice signal, through being stored in external memory storage by USB interface behind the RTD1261 chip decoding and coding from the TV/AV information source; When carrying out time shift, content can be stored in the NAND Flash memory in the PVR module, also can select to be stored in outside memory, when time shift starts, PVR earlier will be from the memory that is stored in appointment behind the CVBS of TV/AV information source and the voice signal decoding and coding, (user's control) sense data from memory more after a period of time, carry out decoding and coding after, send to the YPbPr signal and to televise.
The RTD1261 of Realtek can realize recording with MPEG-2 coding, and image effect is better, and the PVR module is carried out high-quality when recording time shift with MPEG-2, and speed bit stream reaches 9MB/S, therefore needs the jumbo SLC NAND of collocation high-quality Flash memory; Therefore the speed of common MLC NANDFlash memory has only 7MB/S, if use the MLC memory, the speed that can cause Flash does not catch up with the speed of system and influences the performance of whole system.
Claims (6)
1. one kind has the television set of recording with time-shifting function, comprises television module and PVR module, and described television module comprises MCU, image/audio process and video switch switch, and described PVR module comprises MCU, multimedia processor and memory; Television module MCU and PVR module MCU control communication mutually by serial ports; When recording, multimedia processor receives the CVBS and the voice signal of image/audio process output, is stored in memory behind the decoding and coding; During playback, sense data from memory, carry out decoding and coding after, send to television module with the YPbPr signal, it is characterized in that described multimedia processor is the MEPG-2 multimedia processor, the separating of dress in it/encoder is that MEPG-2 separates/encoder.
2. according to claim 1 have a television set of recording with time-shifting function, it is characterized in that described memory is a SLC NAND Flash memory.
3. according to claim 2 have a television set of recording with time-shifting function, it is characterized in that described memory also comprises external memory, and described SLC NAND Flash is connected with multimedia processor by usb hub with external memory.
4. according to claim 3 have a television set of recording with time-shifting function, it is characterized in that described usb hub is GL850A.
5. have a television set of recording with time-shifting function according to arbitrary claim in the claim 1 to 4 is described, it is characterized in that described multimedia processor is the RTD1261 integrated circuit.
6. have a television set of recording with time-shifting function according to arbitrary claim in the claim 1 to 4 is described, it is characterized in that described video switch switch is the TS5V330 integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720196182XU CN201131015Y (en) | 2007-12-19 | 2007-12-19 | Television set with recording and time-shifting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720196182XU CN201131015Y (en) | 2007-12-19 | 2007-12-19 | Television set with recording and time-shifting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201131015Y true CN201131015Y (en) | 2008-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720196182XU Expired - Fee Related CN201131015Y (en) | 2007-12-19 | 2007-12-19 | Television set with recording and time-shifting function |
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| Country | Link |
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| CN (1) | CN201131015Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621638B (en) * | 2009-07-24 | 2011-09-21 | 广州视源电子科技有限公司 | Digital television with two-channel PVR function |
| CN102630044A (en) * | 2012-03-31 | 2012-08-08 | 中山大学 | Time-shifted television system based on HFC server cache |
-
2007
- 2007-12-19 CN CNU200720196182XU patent/CN201131015Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621638B (en) * | 2009-07-24 | 2011-09-21 | 广州视源电子科技有限公司 | Digital television with two-channel PVR function |
| CN102630044A (en) * | 2012-03-31 | 2012-08-08 | 中山大学 | Time-shifted television system based on HFC server cache |
| CN102630044B (en) * | 2012-03-31 | 2014-12-10 | 中山大学 | Time-shifted television system based on HFC server cache |
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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: 20081008 Termination date: 20111219 |