CN107707949A - It is a kind of to support cable TV signal and ISDB T set-top-box system and method - Google Patents
It is a kind of to support cable TV signal and ISDB T set-top-box system and method Download PDFInfo
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- CN107707949A CN107707949A CN201710879326.XA CN201710879326A CN107707949A CN 107707949 A CN107707949 A CN 107707949A CN 201710879326 A CN201710879326 A CN 201710879326A CN 107707949 A CN107707949 A CN 107707949A
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- demultiplexing
- signal
- tuner
- isdb
- pes
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- 238000000034 method Methods 0.000 title claims description 10
- 238000003672 processing method Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
- H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
- H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Business, Economics & Management (AREA)
- Marketing (AREA)
- Television Signal Processing For Recording (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The present invention relates to a kind of set-top-box system for supporting cable TV signal and ISDB T, including：First via tuner, for receiving cable TV signal；Second road tuner, for receiving ISDB T signals；Second road demodulation chip, for being demodulated to the intermediate-freuqncy signal of the second road tuner output；Central processing unit, the intermediate-freuqncy signal to the first via, the data after the demodulation of the second tunnel are handled respectively.The invention also discloses a kind of processing method for supporting cable TV signal and ISDB T set-top-box system.The present invention can meet the needs of user watches cable TV signal (DVB C) program and ISDB T programs simultaneously, and the program of different signal source is presented in same set top box, use user more flexible.
Description
Technical field
The present invention relates to electronic technology field, and in particular to a kind of to support cable TV signal and ISDB-T set top box system
System.
Background technology
With the popularization and popularization of Digital Radio TV set-top box, the demand of user, which not only rests on, watches clearly TV
Program, in addition to set top box can receive the program of heterogeneous networks, such as cable TV signal (DVB-C), ISDB-T etc. simultaneously.
Current most set top box only supports that a kind of signal source single channel inputs or a kind of signal source multichannel inputs.One family
Cable TV signal (DVB-C) program is watched if desired in front yard, it is also desirable to watch ISDB-T programs, then can only buy two respectively
Platform set top box.Financial cost is high, and using upper dumb.
The content of the invention
The purpose of the present invention is to be directed to deficiency of the prior art, there is provided a kind of cable TV signal and ISDB-T of supporting
Set-top-box system so that the program of different signal source can be presented in same set top box.
To achieve the above object, the invention discloses following technical scheme：
It is a kind of to support cable TV signal and ISDB-T set-top-box system, including：
First via tuner, for receiving cable TV signal；
Second road tuner, for receiving ISDB-T signals；
Second road demodulation chip, for being demodulated to the intermediate-freuqncy signal of the second road tuner output；
Central processing unit, the intermediate-freuqncy signal to the first via, the data after the demodulation of the second tunnel are handled respectively；Central processing
Include demultiplexing module in device, demultiplexing module connects respectively with audio decoder, the first Video Decoder, the second Video Decoder
Connecing, the audio PES that the audio decoder receives demultiplexing module output flows and carries out audio decoder, and is output on TV,
The video PES that first Video Decoder and the second Video Decoder receive demultiplexing module output flows and carries out video solution
Code, and be output on TV.
Further, mobile hard disk is additionally provided with, is connected by USB interface with central processing unit, for accessing the section recorded
Mesh number evidence.
Further, the demultiplexing module includes the first demultiplexing, the second demultiplexing, the 3rd demultiplexing, and first demultiplexes
With processing the user audio frequency and video and PES, Section, TS data watched, the audio frequency and video of the second demultiplexing process picture-in-picture and
PES, Section, TS data, the 3rd demultiplexing process are burnt to audio frequency and video and PES, Section, TS data in mobile hard disk.
A kind of processing method for supporting cable TV signal and ISDB-T set-top-box system, comprises the following steps：
Which when set top box, which starts, watches program, according to the program source for being currently needed for viewing, determine TS being mounted to
In first demultiplexing, while frequency locking action is carried out to the demodulation chip where that all the way TS and tuner, now radiofrequency signal passes through
Tuner is converted into intermediate-freuqncy signal, then demodulated chip is converted into what demultiplexing module inside central processing unit can recognize that
Mpeg 2 transport stream TS, then set the TS to be mounted in the first demultiplexing, and by exporting PES data, enter into decoder
Row audio decoder and video decoding；
When the pneumatic picture-in-picture of set top box, according to the program source for being currently needed for viewing, determine which TS is mounted to the
In two demultiplexings, while frequency locking action is carried out to the demodulation chip where that all the way TS and tuner, now radiofrequency signal is through height
Frequency head is converted into intermediate-freuqncy signal, then demodulated chip is converted into the MPEG-2 that demultiplexing module is recognizable inside central processing unit
Transport stream TS, then set the TS to be mounted in the second demultiplexing, and by exporting PES data, be sent into decoder and carry out video
Decoding；
When set top box starts imprinting, according to the program source of current imprinting, determine which TS is mounted into the 3rd demultiplexes
Frequency locking action is carried out in, while to the demodulation chip where that all the way TS and tuner, now radiofrequency signal turns through tuner
Change intermediate-freuqncy signal into, the mpeg 2 transport stream that demultiplexing module is recognizable inside central processing unit is converted into demodulated chip
TS, then set the TS to be mounted in the 3rd demultiplexing, and by exporting PES data, be saved in mobile hard disk.
It is disclosed by the invention it is a kind of support cable TV signal and ISDB-T set-top-box system and method, having following has
Beneficial effect：
1. the system can receive cable TV signal and ISDB-T signals simultaneously
2. big picture watch wherein signal program all the way when, can simultaneously picture-in-picture form preview another way letter
Number program, and can flexibly carry out the mutual switching of big picture and picture-in-picture program.
3. can be when signal program all the way be watched, the program of backstage imprinting another way signal, so that user reviews.
Brief description of the drawings
Fig. 1 is the structured flowchart of the present invention,
Fig. 2 is the internal structure block diagram of central processing unit,
Fig. 3 is demultiplexing module internal structure block diagram.
Embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example only part of the embodiment of the present invention, rather than whole embodiments.It is common based on the embodiment in the present invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
The core of the present invention, which is to provide, a kind of supports cable TV signal and ISDB-T set-top-box system so that different to believe
The program in number source can be presented in same set top box.
Fig. 1-3 are referred to, in figure：
IF (Intermediate Frequency) represents intermediate frequency；
TS represents digital data transmission stream；
ES (Elementary Streams) represents primary flow.
It is disclosed by the invention it is a kind of support cable TV signal and ISDB-T set-top-box system, including：
First via tuner, for receiving cable TV signal；
Second road tuner, for receiving ISDB-T signals；
Second road demodulation chip, for being demodulated to the intermediate-freuqncy signal of the second road tuner output；
Central processing unit, the intermediate-freuqncy signal to the first via, the data after the demodulation of the second tunnel are handled respectively；Central processing
Include demultiplexing module in device, demultiplexing module connects respectively with audio decoder, the first Video Decoder, the second Video Decoder
Connect, the audio PES that the audio decoder receives demultiplexing module output flows and carries out audio decoder, is connect by HDMI or RCA
Mouth is output on TV, and first Video Decoder and the second Video Decoder receive the video PES of demultiplexing module output
Flow and carry out video decoding, be output to by HDMI or RCA interfaces on TV.
In an embodiment of the present invention, mobile hard disk is additionally provided with, is connected by USB interface with central processing unit, is used
In access recorded program data.
In an embodiment of the present invention, the demultiplexing module includes the first demultiplexing, the second demultiplexing, the 3rd solution
Multiplexing, the audio frequency and video and other PES, Section, TS data that the first demultiplexing process user is watching, second demultiplexes use
The audio frequency and video and other PES, Section, TS data, the 3rd demultiplexing process for managing picture-in-picture are burnt to audio frequency and video in mobile hard disk
And other PES, Section, TS data.
A kind of processing method for supporting cable TV signal and ISDB-T set-top-box system disclosed by the invention, including such as
Lower step：
Which when set top box, which starts, watches program, according to the program source for being currently needed for viewing, determine TS being mounted to
In first demultiplexing, while frequency locking action is carried out to the demodulation chip where that all the way TS and tuner, now radiofrequency signal passes through
Tuner is converted into intermediate-freuqncy signal, then demodulated chip is converted into what demultiplexing module inside central processing unit can recognize that
Mpeg 2 transport stream TS, then set the TS to be mounted in the first demultiplexing, and by exporting PES data, enter into decoder
Row audio decoder and video decoding；
When the pneumatic picture-in-picture of set top box, according to the program source for being currently needed for viewing, determine which TS is mounted to the
In two demultiplexings, while frequency locking action is carried out to the demodulation chip where that all the way TS and tuner, now radiofrequency signal is through height
Frequency head is converted into intermediate-freuqncy signal, then demodulated chip is converted into the MPEG-2 that demultiplexing module is recognizable inside central processing unit
Transport stream TS, then set the TS to be mounted in the second demultiplexing, and by exporting PES data, be sent into decoder and carry out video
Decoding；
When set top box starts imprinting, according to the program source of current imprinting, determine which TS is mounted into the 3rd demultiplexes
Frequency locking action is carried out in, while to the demodulation chip where that all the way TS and tuner, now radiofrequency signal turns through tuner
Change intermediate-freuqncy signal into, the mpeg 2 transport stream that demultiplexing module is recognizable inside central processing unit is converted into demodulated chip
TS, then set the TS to be mounted in the 3rd demultiplexing, and by exporting PES data, be saved in mobile hard disk.
Compared to the content introduced in background technology, the present invention can meet that user watches cable TV signal (DVB- simultaneously
C) the demand of program and ISDB-T programs, and the program of different signal source is presented in same set top box, use
Family uses more flexible.
Described above is only the preferred embodiment of the present invention, rather than its limitations；It should be pointed out that although with reference to above-mentioned each
The present invention is described in detail embodiment, it will be understood by those within the art that, it still can be to above-mentioned each
Technical scheme described in embodiment is modified, or carries out equivalent substitution to which part or all technical characteristic；And this
A little modifications and replacement, do not make the essence of corresponding technical scheme depart from the scope of various embodiments of the present invention technical scheme.
Claims (4)
1. a kind of support cable TV signal and ISDB-T set-top-box system, it is characterised in that including：
First via tuner, for receiving cable TV signal；
Second road tuner, for receiving ISDB-T signals；
Second road demodulation chip, for being demodulated to the intermediate-freuqncy signal of the second road tuner output；
Central processing unit, the intermediate-freuqncy signal to the first via, the data after the demodulation of the second tunnel are handled respectively；In central processing unit
Including demultiplexing module, demultiplexing module is connected respectively with audio decoder, the first Video Decoder, the second Video Decoder,
The audio PES that the audio decoder receives demultiplexing module output flows and carries out audio decoder, and is output on TV, described
The video PES that first Video Decoder and the second Video Decoder receive demultiplexing module output flows and carries out video decoding, and
It is output on TV.
A kind of cable TV signal and ISDB-T set-top-box system are supported 2. according to claim 1, it is characterised in that
Mobile hard disk is additionally provided with, is connected by USB interface with central processing unit, for accessing recorded program data.
A kind of cable TV signal and ISDB-T set-top-box system are supported 3. according to claim 2, it is characterised in that
The demultiplexing module includes the first demultiplexing, the second demultiplexing, the 3rd demultiplexing, and the first demultiplexing process user watches
Audio frequency and video and PES, Section, TS data, the audio frequency and video and PES, Section, TS number of the second demultiplexing process picture-in-picture
According to the 3rd demultiplexing process is burnt to audio frequency and video and PES, Section, TS data in mobile hard disk.
4. a kind of processing method for supporting cable TV signal and ISDB-T set-top-box system, it is characterised in that including as follows
Step：
When set top box, which starts, watches program, according to the program source for being currently needed for viewing, determine which TS is mounted to first
In demultiplexing, while frequency locking action is carried out to the demodulation chip where that all the way TS and tuner, now radiofrequency signal is through high frequency
Head is converted into intermediate-freuqncy signal, then demodulated chip is converted into the MPEG-2 that demultiplexing module is recognizable inside central processing unit and passed
Defeated stream TS, then sets the TS to be mounted in the first demultiplexing, and by exporting PES data, audio solution is carried out into decoder
Code and video decoding；
When set top box starts picture-in-picture, according to the program source for being currently needed for viewing, determine which TS is mounted to the second solution
In multiplexing, while frequency locking action is carried out to the demodulation chip where that all the way TS and tuner, now radiofrequency signal is through tuner
Intermediate-freuqncy signal is converted into, then demodulated chip is converted into the recognizable MPEG-2 transmission of demultiplexing module inside central processing unit
TS is flowed, then sets the TS to be mounted in the second demultiplexing, and by exporting PES data, is sent into decoder and carries out video decoding；
When set top box starts imprinting, according to the program source of current imprinting, determine which TS being mounted in the 3rd demultiplexing,
Frequency locking action is carried out to the demodulation chip where that all the way TS and tuner simultaneously, during now radiofrequency signal is converted into through tuner
Frequency signal, the mpeg 2 transport stream TS that demultiplexing module is recognizable inside central processing unit is converted into demodulated chip, so
After set the TS to be mounted in the 3rd demultiplexing, and by exporting PES data, be saved in mobile hard disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710879326.XA CN107707949A (en) | 2017-09-26 | 2017-09-26 | It is a kind of to support cable TV signal and ISDB T set-top-box system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710879326.XA CN107707949A (en) | 2017-09-26 | 2017-09-26 | It is a kind of to support cable TV signal and ISDB T set-top-box system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107707949A true CN107707949A (en) | 2018-02-16 |
Family
ID=61174410
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710879326.XA Pending CN107707949A (en) | 2017-09-26 | 2017-09-26 | It is a kind of to support cable TV signal and ISDB T set-top-box system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521596A (en) * | 2018-04-18 | 2018-09-11 | 深圳佳力拓科技有限公司 | A kind of system and method that two-way DTMB is supported based on set-top box |
| CN111327932A (en) * | 2018-12-14 | 2020-06-23 | 中国移动通信集团北京有限公司 | Television box, television program processing method, device and storage medium |
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| CN101453594A (en) * | 2007-12-07 | 2009-06-10 | 上海晨兴电子科技有限公司 | Method and apparatus implementing picture-in-picture and instant playing and recording function by mobile phone television |
| CN202979203U (en) * | 2012-11-29 | 2013-06-05 | 深圳市同洲电子股份有限公司 | Digital TV system |
| CN105898537A (en) * | 2016-06-23 | 2016-08-24 | 深圳创维数字技术有限公司 | Method and system supporting simultaneous broadcasting and recording of program sources of different modes |
| CN207382476U (en) * | 2017-09-26 | 2018-05-18 | 深圳佳力拓科技有限公司 | One kind supports cable TV signal and ISDB-T dual mode systems based on set-top box |
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2017
- 2017-09-26 CN CN201710879326.XA patent/CN107707949A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101453594A (en) * | 2007-12-07 | 2009-06-10 | 上海晨兴电子科技有限公司 | Method and apparatus implementing picture-in-picture and instant playing and recording function by mobile phone television |
| CN202979203U (en) * | 2012-11-29 | 2013-06-05 | 深圳市同洲电子股份有限公司 | Digital TV system |
| CN105898537A (en) * | 2016-06-23 | 2016-08-24 | 深圳创维数字技术有限公司 | Method and system supporting simultaneous broadcasting and recording of program sources of different modes |
| CN207382476U (en) * | 2017-09-26 | 2018-05-18 | 深圳佳力拓科技有限公司 | One kind supports cable TV signal and ISDB-T dual mode systems based on set-top box |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521596A (en) * | 2018-04-18 | 2018-09-11 | 深圳佳力拓科技有限公司 | A kind of system and method that two-way DTMB is supported based on set-top box |
| CN111327932A (en) * | 2018-12-14 | 2020-06-23 | 中国移动通信集团北京有限公司 | Television box, television program processing method, device and storage medium |
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Application publication date: 20180216 |