CN201594852U - Digital set top box - Google Patents
Digital set top box Download PDFInfo
- Publication number
- CN201594852U CN201594852U CN2009203152903U CN200920315290U CN201594852U CN 201594852 U CN201594852 U CN 201594852U CN 2009203152903 U CN2009203152903 U CN 2009203152903U CN 200920315290 U CN200920315290 U CN 200920315290U CN 201594852 U CN201594852 U CN 201594852U
- Authority
- CN
- China
- Prior art keywords
- chip
- top box
- tuner
- audio
- set top
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The utility model relates to a digital set top box, in particular to a digital set top box capable of simultaneously inputting multiple different audio/video signals. The utility model aims to the defect that the set top box can only input one audio/video signal in the prior art, and discloses a digital set top box capable of simultaneously inputting multiple different audio/video signals. The key point of the technical scheme is that the digital set top box comprises a first tuner, a first demodulation chip, a microprocessor chip, an intelligent card chip, a storage module and a first audio/video output port, and also comprises a second tuner, a second demodulation chip and a second audio/video output port, wherein the second tuner is connected with the microprocessor chip by the second demodulation chip, and the second audio/video output port is connected with the microprocessor chip. The beneficial effect of the utility model is that the digital set top box can simultaneously input multiple different audio/video signals and is applicable to the household with more digital televisions.
Description
Technical field
The utility model relates to top box of digital machine, relates to a kind of digital TV set-top box that can export multichannel different audio-video signal simultaneously specifically.
Background technology
Top box of digital machine in the market comprises tuner, demodulation chip, microprocessor chip, intelligent card chip, memory module and audio frequency and video output port; Described tuner, demodulation chip and microprocessor chip are connected successively; Described intelligent card chip, memory module and audio frequency and video output port all connect microprocessor chip.Such set-top box can only be exported one road audio-video signal in use, if there are several television sets to watch in the user family, following approach is arranged generally:
1. the user buys many set-top box, set-top box of every corresponding use of television set.This approach user need spend more money, has increased user's burden; Cause the resistance of user simultaneously, be unfavorable for the execution of national policy for the Digital Television translation.
2. the user only uses a set-top box, and which platform television set need be watched digital television program, just set-top box is moved to corresponding position and is connected.Such as set-top box connection parlor television-viewing on daytime, taking evening into, the bedroom connects the bedroom television-viewing.This mode user uses very trouble, and can not satisfy many different television sets and watch TV programme simultaneously.
3. use sub-host mode.Currently marketed sub-main frame is realized, and what be that handset and main frame watch is same TV programme, that has limited the user greatly uses and watches freedom, handset with will lead to divergence when the different user between main equipment room need be watched different TV programme, and the uncontrollable user of the mode broadcasting and TV multiple terminals of the current sub-main frame of realizing, broadcasting and TV loss license fee.
The utility model content
Technical problem to be solved in the utility model is: can only export the deficiency of one road audio-video signal at set-top box of the prior art, propose a kind of digital TV set-top box that can export multichannel different audio-video signal simultaneously.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of top box of digital machine comprises first tuner, first demodulation chip, microprocessor chip, intelligent card chip, memory module and the first audio frequency and video output port; Described first tuner, first demodulation chip are connected successively with microprocessor chip; Described intelligent card chip, memory module and the first audio frequency and video output port all connect microprocessor chip, also comprise second tuner, second demodulation chip and the second audio frequency and video output port; Described second tuner connects microprocessor chip by second demodulation chip, and the described second audio frequency and video output port connects microprocessor chip.
Described memory module comprises eeprom chip, FLASH chip and SDROM chip.
The beneficial effects of the utility model are: can export multichannel different audio-video signal simultaneously, be applicable to the family of many digital televisions.
Description of drawings
Fig. 1 is the top box of digital machine structured flowchart in the utility model.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
With respect to prior art, the improvement that the utility model is done is: increased a tuner, a demodulation chip and an audio frequency and video output port.So just can realize multichannel input, demultiplexing, multichannel CA (condition reception) descrambling, multipath decoding, the multichannel output of audio-video signal, very suitable for the family that has many digital televisions, do not need to buy many set-top box, save cost.
As shown in Figure 1, the top box of digital machine in the utility model comprises first tuner, first demodulation chip, microprocessor chip, intelligent card chip, memory module and the first audio frequency and video output port; Described first tuner, first demodulation chip are connected successively with microprocessor chip; Described intelligent card chip, memory module and the first audio frequency and video output port all connect microprocessor chip, also comprise second tuner, second demodulation chip and the second audio frequency and video output port; Described second tuner connects microprocessor chip by second demodulation chip, and the described second audio frequency and video output port connects microprocessor chip.
Memory module in the utility model can comprise eeprom chip, FLASH chip and SDROM chip.
Top box of digital machine workflow in the utility model is as follows:
1. the digital-TV operator TV programme signal is by two-way tuner reader top box owing to be the two-way modulation, the reader top box be the two-way frequency.
2. set-top box software receives tuner modulation signal afterwards, realizes the communication with the CA smart card.Respectively the two-way frequency is carried out descrambling by the built-in CA of set-top box (condition reception), separate and lay out the different program of two-way.
3. the different programme information of two-way send different decoders respectively, finishes decoding respectively.
4. will the decode two-way program of output of the audio frequency and video distributor circuit in the set-top box is exported by two groups of different audio frequency and video outputs respectively, and one group of audio frequency and video output is exported program A, can connect television set A; Another group audio frequency and video output output program B can connect television set B.
5. program A is controlled program searching, is changed operations such as platform, volume plus-minus by remote controller A, does not influence broadcast and the control of program B.Remote controller A directly controls set-top box.
6. program B is controlled program searching, is changed operations such as platform, volume plus-minus by remote controller B, does not influence broadcast and the control of program A.
7. both direct controller top box of the remote signal of remote controller B; After also can receiving remote signal is transferred to set-top box by mode such as wired, wireless by other equipment.
8. the output of set-top box two-way is not limited to output to two television sets, also program A, program B can be connected on the two-way audio frequency and video input port of television set A, if television set A has PIP (picture-in-picture) function of simulated television, just can realize that the picture-in-picture function of user's Digital Television is watched.
In the utility model, tuner can adopt the tuner of two dull systems, also can adopt the tuner of a two-way modulation, and microprocessor chip can adopt a chip that has the multipath decoding function, also can adopt the chip of a plurality of single decoding functions.
For the utility model; claimed including but not limited to the set-top box that possesses two-way audio-video signal output function; those skilled in the art might realize possessing three the tunnel, the four tunnel even multichannel audio-video frequency signal output function more fully according to description of the present utility model, and it all belongs to protection range of the present utility model.
Claims (2)
1. a top box of digital machine comprises first tuner, first demodulation chip, microprocessor chip, intelligent card chip, memory module and the first audio frequency and video output port; Described first tuner, first demodulation chip are connected successively with microprocessor chip; Described intelligent card chip, memory module and the first audio frequency and video output port all connect microprocessor chip, it is characterized in that: also comprise second tuner, second demodulation chip and the second audio frequency and video output port; Described second tuner connects microprocessor chip by second demodulation chip, and the described second audio frequency and video output port connects microprocessor chip.
2. a kind of top box of digital machine as claimed in claim 1 is characterized in that: described memory module comprises eeprom chip, FLASH chip and SDROM chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203152903U CN201594852U (en) | 2009-11-20 | 2009-11-20 | Digital set top box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203152903U CN201594852U (en) | 2009-11-20 | 2009-11-20 | Digital set top box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201594852U true CN201594852U (en) | 2010-09-29 |
Family
ID=42776918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203152903U Expired - Fee Related CN201594852U (en) | 2009-11-20 | 2009-11-20 | Digital set top box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201594852U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200435A (en) * | 2012-01-06 | 2013-07-10 | 北京东方广视科技股份有限公司 | Set top box and control method and television signal transmission system used for same |
| WO2013170771A1 (en) * | 2012-05-18 | 2013-11-21 | 华为终端有限公司 | Set-top box control method, set-top box and system thereof |
| CN105516774A (en) * | 2015-11-30 | 2016-04-20 | 北京四达时代软件技术股份有限公司 | Digital gateway and television broadcasting control system |
-
2009
- 2009-11-20 CN CN2009203152903U patent/CN201594852U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200435A (en) * | 2012-01-06 | 2013-07-10 | 北京东方广视科技股份有限公司 | Set top box and control method and television signal transmission system used for same |
| WO2013170771A1 (en) * | 2012-05-18 | 2013-11-21 | 华为终端有限公司 | Set-top box control method, set-top box and system thereof |
| CN105516774A (en) * | 2015-11-30 | 2016-04-20 | 北京四达时代软件技术股份有限公司 | Digital gateway and television broadcasting control system |
| CN105516774B (en) * | 2015-11-30 | 2019-03-29 | 北京四达时代软件技术股份有限公司 | A kind of digital gateway and control system of televising |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20151120 |
|
| EXPY | Termination of patent right or utility model |