CN108650548A - A method of TS streams are decrypted - Google Patents
A method of TS streams are decrypted Download PDFInfo
- Publication number
- CN108650548A CN108650548A CN201810469738.0A CN201810469738A CN108650548A CN 108650548 A CN108650548 A CN 108650548A CN 201810469738 A CN201810469738 A CN 201810469738A CN 108650548 A CN108650548 A CN 108650548A
- Authority
- CN
- China
- Prior art keywords
- queue
- data packets
- streams
- way
- decrypted
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000009191 jumping Effects 0.000 claims description 10
- 230000006870 function Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 101000860173 Myxococcus xanthus C-factor Proteins 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000001360 synchronised effect Effects 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
- H04N21/43—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
- H04N21/43853—Multiplex stream processing, e.g. multiplex stream decrypting involving multiplex stream decryption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
-
- 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
- H04N21/42623—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific decryption arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The present invention discloses a kind of method that TS streams are decrypted, it is related to Digital object identifier field, the TS data packets for coming from first via TS streams are put into first queue, the TS data packets for coming from the second road TS streams are put into second queue, according to the presence or absence of current TS data packet situation in first queue and second queue, it takes TS data packets to be sent to CI cards to be decrypted, the first time that CI cards have just been started to work, the queue did not had TS data packets then to judge directly to second queue to the judgement of queue, when alternately judging later each queue, if the queue does not have TS data packets just at this time, then CI cards are sent to one empty packet of queue addition to be decrypted, then another queue is turned again to be judged.
Description
Technical field
The present invention relates to Digital object identifier field more particularly to a kind of TS method for stream processing and device.
Background technology
MPEG-2 (compression standard based on digital storage media moving image and voice) is ISO/IEC/JTC1/SC29/
The Standard of image compression that WG11 is formulated, it is to adapt to the generation of digital television program, editor, storage, transmission and display
Composite request and research and develop, be widely used in digital television broadcasting and DVD.Currently, multimedia programming such as TV programme are substantially all
It compressed, be packaged using Moving Picture Experts Group-2, form TS streams (Transport Stream, transport stream), TS streams are compiled by channel
It is sent in channel, is transmitted after code and modulation.
When user watches multimedia programming, digital television is flowed according to the corresponding TS of the selected multimedia programming of user
PID (Package Identification, packet identification code) is extracted from numerous TS streams corresponding to the selected more matchmakers of user
Body segment purpose TS streams, and the programme content in TS streams is decrypted, programme content after decrypted can then play, for
Family is watched.
With the development of digital multimedia, user (is broadcasting while watching multimedia programming to playing recording function
Another way multimedia programming is recorded while putting multimedia programming all the way), picture-in-picture function (i.e. while the broadcasting at least more matchmakers of two-way
Body segment mesh) etc. demand also gradually increase, when user proposes to play recording function or/and when picture-in-picture function, digital television
It then needs the TS for extracting two-way multimedia programming to flow, and the programme content in two-way TS streams is decrypted, however, existing number
Word television set can only be decrypted TS streams all the way in the same period, realize that TS flows the broadcasting of corresponding multimedia programming all the way
Or record, and cannot use a CI card that two-way TS streams are decrypted respectively simultaneously, and then can not achieve two-way TS stream difference
The broadcasting or recording of corresponding multimedia programming.
Invention content
The purpose of the present invention is to provide a kind of TS method for stream processing and devices, real for two-way TS streams to be decrypted
Existing two-way TS flows the broadcasting or recording of corresponding multimedia programming.
To achieve the goals above, in a first aspect, the present invention provides a kind of decryption method for two-way TS streams, this method includes：
Get first via TS streams and the second road TS streams；
To coming from the first kind TS data packets of first via TS streams and coming from the second class TS data in the second road TS streams
Packet distinguishes label；
Using a CI card, first kind TS data packets are decrypted in some periods, the second class TS data packets are decrypted in other periods；
According to the rule of the separator, to after decryption first kind TS data packets and the second class TS data packets carry out area
Divide for forming the output of two-way program.
In the prior art, in order to realize that two-way TS flows the broadcasting or/and recording of corresponding multimedia programming, usually
Two decryption cards (CI cards) are set in digital television, and target TS streams all the way are decrypted in each decryption unit.And it incite somebody to action this
When the two-way TS stream decryption methods that inventive embodiments provide are applied to digital television, due to the two-way TS streams for exporting decoder
In TS data packets distinguish label, and the TS data packets of separator are all sent to a CI card for decryption, into
And further according to the rule of separator after a CI card is to TS packet decryptions, to the TS data packets of the separator after decryption
It is redistricted to form the output of two-way program.It is equivalent to and two-way TS is flowed in a time multiplexed manner using a CI card
It is decrypted, two-way TS streams is decrypted and is saved to which a CI card be omitted compared with prior art and can equally ensure
Mesh exports；The structure that digital television can be simplified using technical solution of the present invention reduces the cost of digital television.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and constitutes the part of the present invention, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is TS flow data format description schematic diagrames；
Fig. 2 is a kind of schematic diagram that TS provided by the embodiments of the present application flows decryption hardware connection；
Fig. 3 is another schematic diagram that TS provided by the embodiments of the present application flows decryption hardware connection；
Fig. 4 is the step schematic diagram that two-way TS flows decryption method in the embodiment of the present application.
Specific implementation mode
The TS method for stream processing and digital television that embodiment provides in order to further illustrate the present invention, with reference to explanation
Book attached drawing is described in detail.
In the prior art, when multiple decoders export encrypted two-way TS streams respectively, two CI cards of setting is needed to distinguish
Different encrypted two-way TS is flowed；And scheme provided by the present application, a CI card can only be used only to encrypted two-way TS
Stream is decrypted, and after decryption distinguishes the TS data after decryption to form two-way program.
First, a simple introduction is carried out to TS streams.What TS streaming digital TV set-top boxes received is a section code
Stream, each TS stream carry some information, such as Video, Audio and we need PAT, PMT information learnt.
For the composition of TS streams as shown in Figure 1, TS streams are the bit stream formats based on packet (data packet), each packet is 188 bytes,
(or 204 bytes, the CRC check data of 16 bytes are added after 188 bytes, extended formatting is the same).
Whole TS stream composition forms are as shown in Figure 1, wherein Packet Header (packet header) information explanation is as shown in table 1：
Table 1
Wherein, sync id is the transmission identifier under MPEG-2TS transmission standards, and it typically is fixed value 0x47；
Pid information is the unique mark in TS streams, and the content of data packet is determined by it during TS flows, for example, an if TS
PID is 0x0000 in the header packet information of packet in stream, then the data of this packet are exactly the pat table in DVB.
The hardware frame figure of the application digital television is as shown in Figure 2.
The television set includes demodulator, memory module, CI cards and SOC chip；Wherein, the input terminal of memory module respectively with
The output end of demodulator connects, and the output end of memory module is connect with the input terminal of CI cards, the output ends of CI cards and SOC chip
Input terminal connects, and the control terminal of CI cards is connect by CMD interfaces with SOC chip.
It is input to memory module after the encrypted TS streams of two-way are decoded by Demond (decoder), in the memory module to coming
Label is distinguished respectively from the TS data packets in two-way TS stream, and then by the TS data packets after separator, it can be according to
The time sequencing of first in first out, and CI cards are sent to based on certain transmission rate, CI cards are right according to its preset decryption rule
The TS data packets sent are decrypted, and the TS data packets after decryption are sent back memory module after decryption, in memory module
The middle rule according to separator redistricts out the TS data packets for coming from two-way TS streams, that is, reverts to two original ways
According to, then carry out it is subsequent processing with formed two-way program output.
Further, information exchange is carried out by IIC control protocols between each chip, specifically, SOC chip passes through
IIC controls Demond (demodulator), and the channel that the data format and needs that setting output TS flows demodulate, Demond is controlled by IIC
Tuner processed carries out the selection of channel, and the frequency point of Demond demands is transmitted to Demond by IF/IQ signals and demodulated by Tuner；
Encrypted TS streams (TS1 and TS2 in such as figure) after demodulation are sent to memory module by Demond, and memory module will receive
TS data packets in TS1 and TS2 distinguish label, and CI cards are sent to the new data stream that the TS data packets of separator are formed
In, CI cards are again decrypted the TS data packets of separator, and the TS data packets after decryption are added according to separator rule
It plays out or/and records to distinguish and be formed two-way program.
Further IF is intermediate-freuqncy signal, and IQ is baseband signal, and DVB-S2 is satellite-signal, and DVB-T2 believes for terrestrial broadcasting
Number, DVB-C is wire signal, and tuner is sent for receiving above-mentioned DVB-S2, DVB-T2/C signal, and by the signal received
It is demodulated to Demond.
It should be noted that as shown in Figures 2 and 3, which can be individual module, can also be built into
In SOC chip, function is similar with effect, does not do excessive repeat herein.
Referring to Fig. 4, TS method for stream processing provided in an embodiment of the present invention includes：
Step S1, label is distinguished to the TS data packets in the two-way TS streams of acquisition.
For example, it is illustrated by taking DTV as an example, TV programme are compressed at present, the TS that is packed into stream is usual
After channel is encoded and modulated, formation radiofrequency signal, which is sent in channel, to be transmitted, and is believed at this point, received signal is then radio frequency
Number, each radiofrequency signal corresponds to TS all the way and flows, per road TS again including at least corresponding single-unit mesh TS streams of TV programme all the way in stream,
Corresponding PID is all had per the corresponding single-unit mesh TS streams of road TV programme.In reality, when receiving multiple programme signals, often
A programme signal corresponds to TS all the way and flows, and user may have while watch program and record the demand of another way program at this time, this is just
It needs that two-way TS streams are decrypted simultaneously.Data packet in order to come from the TS not gone the same way streams after decrypting carries out effectively
It distinguishes, needs that the TS data packets in TS streams of not going the same way are distinguished label before decryption.
Illustratively, the sync id in the header packet information of TS data packets can be changed.Intrinsic sync id is 0x47, can
Sync id in being flowed respectively to different TS in TS packet header information does different changes.For example, the TS during TS flows all the way
Data packet, sync id can be changed to 0x48 in header packet information；Another way can then be changed to 0x49.
For the sake of facilitating narration, the TS data packets for coming from wherein all the way TS streams can also be known as first kind TS data by us
The TS data packets for coming from another way TS streams are known as the second class TS data packets by packet.
Step S2：The first kind TS data packets and the second class TS data packets of label will be distinguished, with serial side
Formula is sent to a CI card；The CI cards are successively decrypted the data packet received；That is, the CI cards are at some
Duan Xiemi first kind TS data packets decrypt the second class TS data packets in other periods；
A kind of particular situation is：The first kind TS data packets for having distinguished label are placed into first,
The the second class TS data packets for distinguishing label are placed into second queue, are handed over from the first queue and the second queue
It is decrypted for taking a TS data packet to be sent to one CI cards.It is time division multiplexing that the CI cards, which can be simply interpreted as,.
Due to demodulation speed of TS streams etc., it is possible that temporary TS flows discontinuous situation, this may result in
First queue or second queue do not have TS data packets temporarily；For synchronous needs, if take TS data packets, the first queue
Or the state of the second queue at that time is exactly sky, then adds to this empty first queue or the second queue at this time
Add an empty packet with separator；Sky packet is after decryption without content.
But when CI cards are started to work, for the first time to the judgement of first queue when, if first queue does not have TS data
Packet, then need not add empty packet；It only needs to turn to judge second queue, because this is comparable to first to second
Queue judge, and first queue, second queue are also opposite differentiation.Therefore what is specifically executed is following implementations
The step of example：
The first step：CI cards are started to work；Judge whether first queue there are at least one TS data packets；If jumping to second
Step, if without third step is jumped to；
Second step：It takes the first TS data packets of the first queue to be decrypted in CI cards, then jumps to third step；
Third walks：Judge whether second queue there are at least one TS data packets；If jumping to the 4th step, if without jumping to
5th step；
4th step：The first TS data packets of the second queue are taken to be decrypted in CI cards；Then the 6th step is jumped to；
5th step：An empty TS data packet is added to the second queue to be decrypted in CI cards；Then it jumps to
6th step；
6th step：Judge whether first queue there are at least one TS data packets；If jumping to second step, if without jumping to
7th step；
7th step：An empty TS data packet is added to the first queue to be decrypted in CI cards；Then it jumps to
Third walks.
Step S3：According to the rule of the separator, to the first kind TS data packets and the second class TS data after decryption
Packet distinguishes to form the output of two-way program.
That is, according to the rule of the separator, to after decryption first kind TS data packets and the second class TS data packets into
Row is distinguished, and is reverted to original two-way TS streams, is carried out subsequent processing and form the output of two-way program.This two-way program can be distinguished
For living broadcast of programs and performance recording.
Specifically, SOC chip receives the TS data packets after the decryption of CI cards transmission, according to the distinguishing rule of TS data packets,
To after decryption first kind TS data packets and the second class TS data packets distinguish, with formed two-way program output.Illustratively, if
The sync id in change header packet information is taken, then is arranged in the TS packets in chronological order of identical sync id all the way
Data flow forms program all the way.If for example, the two-way TS stream inputted before, sync id is more in packet header information all the way
It is changed to 0x48, another way is changed to 0x49, then after decryption can re-form the TS data packets that sync id is 0x48 all the way
Data flow exports, and the TS data packets that sync id is 0x49 are re-formed the output of another way data flow.
In two-way TS provided in an embodiment of the present invention flows decryption method, according to multimedia section needed for the two-way of user's selection
Mesh obtains the corresponding TS streams of each multimedia programming respectively, to carrying out area respectively per TS data packets all the way in two-way TS streams
Minute mark is remembered, to be distinguished to two-way TS streams；In turn, the TS data packets after separator are sent to a CI card, it should
CI is stuck in the different periods and the TS data packets that different instructions mark is decrypted respectively；Finally, which will be after decryption
TS data packets are split as multiple data flows to form corresponding two-way program again according to preset separator rule, for
User meets while the function of viewing and recording different multimedia program, increases experience and the demand of user.
In compared with the prior art, in order to realize that two-way TS flows the broadcasting or/and recording of corresponding multimedia programming,
Multiple decryption cards (CI cards) are usually set in digital television, and target TS streams all the way are decrypted in each decryption unit.And
When two-way TS provided in an embodiment of the present invention stream decryption methods are applied to digital television, due to the two-way for exporting decoder
The two class TS data packets that TS streams separately include are mixed and are separated after using the decryption of CI cards, therefore need to only be set in digital television
It sets a CI card and achieves that and decryption is carried out at the same time to two-way TS streams, so as to simplify the structure of digital television, reduce number
The cost of word television set.
There is no the situation of TS data packets, present invention design that will come from first via TS streams in queue due to being likely to occur
TS data packets be put into first queue, will come from the second road TS stream TS data packets be put into second queue, according to first queue
It with the presence or absence of current TS data packet situation in second queue, takes TS data packets to be sent to CI cards and is decrypted, CI cards just start work
The first time of work, the queue did not had TS data packets then to judge directly to second queue to the judgement of queue, later alternately pair
When each queue is judged, if the queue does not have TS data packets just at this time, adds an empty packet to the queue and be sent to
CI cards are decrypted, and then turn again to another queue and are judged.
In the description of the above embodiment, particular features, structures, materials, or characteristics can be at any one or more
It can be combined in any suitable manner in a embodiment or example.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (1)
1. a kind of method that TS streams are decrypted, which is characterized in that the TS data packets that will come from first via TS stream are put into the
The TS data packets for coming from the second road TS streams are put into second queue, according to current in first queue and second queue by one queue
The presence or absence of TS data packets situation takes TS data packets to be sent to CI cards and is decrypted, and specific method includes the following steps：
The first step：CI cards are started to work；Judge whether first queue there are at least one TS data packets；If jumping to second step,
If without third step is jumped to；
Second step：It takes the first TS data packets of the first queue to be decrypted in CI cards, then jumps to third step；
Third walks：Judge whether second queue there are at least one TS data packets；If jumping to the 4th step, if without jumping to the 5th
Step；
4th step：The first TS data packets of the second queue are taken to be decrypted in CI cards；Then the 6th step is jumped to；
5th step：An empty TS data packet is added to the second queue to be decrypted in CI cards；Then the 6th is jumped to
Step；
6th step：Judge whether first queue there are at least one TS data packets；If jumping to second step, if without jumping to the 7th
Step；
7th step：An empty TS data packet is added to the first queue to be decrypted in CI cards；Then third is jumped to
Step.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810469738.0A CN108650548A (en) | 2018-05-16 | 2018-05-16 | A method of TS streams are decrypted |
| PCT/CN2019/087205 WO2019219056A1 (en) | 2018-05-16 | 2019-05-16 | Ts processing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810469738.0A CN108650548A (en) | 2018-05-16 | 2018-05-16 | A method of TS streams are decrypted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108650548A true CN108650548A (en) | 2018-10-12 |
Family
ID=63756375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810469738.0A Pending CN108650548A (en) | 2018-05-16 | 2018-05-16 | A method of TS streams are decrypted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108650548A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001043444A2 (en) * | 1999-12-13 | 2001-06-14 | Scientific-Atlanta, Inc. | Method of identifying multiple digital streams within a multiplexed signal |
| CN1543216A (en) * | 2003-03-26 | 2004-11-03 | Common interface controller and method of descrambling transport stream channels | |
| CN1684524A (en) * | 2005-03-16 | 2005-10-19 | 西安电子科技大学 | Multiple channel complex method for MPEG-2 single programme transmission |
| CN201403162Y (en) * | 2009-04-16 | 2010-02-10 | 青岛海信电器股份有限公司 | Digital broadcast decoding circuit |
| CN101777933A (en) * | 2010-01-29 | 2010-07-14 | 中国科学院空间科学与应用研究中心 | Generation and capture system of encrypted frame hopping spread spectrum signal of air fleet link |
| CN102075510A (en) * | 2010-10-18 | 2011-05-25 | 深圳市九洲电器有限公司 | Device for converting TS (Transport Stream) stream to ASI (Asynchronous Serial Interface) stream and corresponding controllable ASI stream outputting system |
| CN202998370U (en) * | 2013-01-15 | 2013-06-12 | 王涛 | Set-top box capable of supporting multiple devices to watch different programs at the same time |
| US8515966B2 (en) * | 2009-01-09 | 2013-08-20 | Ebay Inc. | Analyzing queries to generate product intention rules |
| WO2013139717A1 (en) * | 2012-03-19 | 2013-09-26 | Smardtv S.A. | A cicam system for processing multiple programme transport streams |
| CN103763579A (en) * | 2014-01-22 | 2014-04-30 | 深圳国微技术有限公司 | Method for recognizing multichannel transmission streams based on USB interface |
| US20150113194A1 (en) * | 2013-10-21 | 2015-04-23 | S2-Tek Inc. | Common Interface/Conditional Access Module and Method of Transmitting Data between Common Interface Card and Integrated Circuit Chip thereof |
-
2018
- 2018-05-16 CN CN201810469738.0A patent/CN108650548A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001043444A2 (en) * | 1999-12-13 | 2001-06-14 | Scientific-Atlanta, Inc. | Method of identifying multiple digital streams within a multiplexed signal |
| CN1543216A (en) * | 2003-03-26 | 2004-11-03 | Common interface controller and method of descrambling transport stream channels | |
| CN1684524A (en) * | 2005-03-16 | 2005-10-19 | 西安电子科技大学 | Multiple channel complex method for MPEG-2 single programme transmission |
| US8515966B2 (en) * | 2009-01-09 | 2013-08-20 | Ebay Inc. | Analyzing queries to generate product intention rules |
| CN201403162Y (en) * | 2009-04-16 | 2010-02-10 | 青岛海信电器股份有限公司 | Digital broadcast decoding circuit |
| CN101777933A (en) * | 2010-01-29 | 2010-07-14 | 中国科学院空间科学与应用研究中心 | Generation and capture system of encrypted frame hopping spread spectrum signal of air fleet link |
| CN102075510A (en) * | 2010-10-18 | 2011-05-25 | 深圳市九洲电器有限公司 | Device for converting TS (Transport Stream) stream to ASI (Asynchronous Serial Interface) stream and corresponding controllable ASI stream outputting system |
| WO2013139717A1 (en) * | 2012-03-19 | 2013-09-26 | Smardtv S.A. | A cicam system for processing multiple programme transport streams |
| CN202998370U (en) * | 2013-01-15 | 2013-06-12 | 王涛 | Set-top box capable of supporting multiple devices to watch different programs at the same time |
| US20150113194A1 (en) * | 2013-10-21 | 2015-04-23 | S2-Tek Inc. | Common Interface/Conditional Access Module and Method of Transmitting Data between Common Interface Card and Integrated Circuit Chip thereof |
| CN103763579A (en) * | 2014-01-22 | 2014-04-30 | 深圳国微技术有限公司 | Method for recognizing multichannel transmission streams based on USB interface |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1210948C (en) | Formation of performance specific information processed by digital data | |
| CN100358345C (en) | Block data form for digital data storage medium | |
| US8136140B2 (en) | Methods and apparatus for generating metadata utilized to filter content from a video stream using text data | |
| CN1166179C (en) | Decoding to digital data containing performance specific information | |
| US20090228928A1 (en) | Method of receiving broadcast signals and apparatus for receiving broadcast signals | |
| EP2061239B1 (en) | Methods and apparatus for identifying video locations in a video stream using text data | |
| KR20130029369A (en) | Method and apparatus for processing non-real-time broadcast service and content transmitted by broadcast signal | |
| JP3435398B2 (en) | Content distribution method and content data recording / reproducing method and apparatus | |
| US7908639B2 (en) | Information transfer apparatus and method, information processing apparatus and method, and information processing system | |
| CN108551590A (en) | TS method for stream processing and device are received for broadcast receiver | |
| JP4154825B2 (en) | Digital broadcast receiving system | |
| CN108600832A (en) | A method of TS streams are decrypted | |
| CN108429928A (en) | A method of TS streams are decrypted | |
| CN108650548A (en) | A method of TS streams are decrypted | |
| CN108712679A (en) | A kind of broadcast receiver | |
| US8832773B2 (en) | System and method for transport PID broadcast scheme | |
| US6654809B1 (en) | Data processing device | |
| KR20040044665A (en) | Set top box capable of viewing, storing and reproducing two or more reception programs for digital broadcasting and method of the same | |
| JP4649900B2 (en) | Program display device | |
| KR101053699B1 (en) | Recording device and method of digital broadcasting | |
| JP5071569B2 (en) | Transport stream transmission system and method thereof | |
| JP5013009B2 (en) | Transport stream redistribution system | |
| JP5016335B2 (en) | Playback apparatus and playback method | |
| US7206502B2 (en) | Apparatus and method for recording and reproducing digital data | |
| JP2002125179A (en) | Network storage device and storage method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 266000, No. 218, Bay Road, Qingdao economic and Technological Development Zone, Shandong Applicant after: Hisense Visual Technology Co., Ltd. Address before: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Applicant before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181012 |