CN106385633A - Personal video recording method and system - Google Patents
Personal video recording method and system Download PDFInfo
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- CN106385633A CN106385633A CN201610855223.5A CN201610855223A CN106385633A CN 106385633 A CN106385633 A CN 106385633A CN 201610855223 A CN201610855223 A CN 201610855223A CN 106385633 A CN106385633 A CN 106385633A
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- frame data
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- deciphering
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000008859 change Effects 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims description 7
- 230000006870 function Effects 0.000 description 5
- 238000005728 strengthening Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification 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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
-
- 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
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4135—Peripherals receiving signals from specially adapted client devices external recorder
-
- 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
- H04N21/43853—Multiplex stream processing, e.g. multiplex stream decrypting involving multiplex stream decryption
-
- 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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4627—Rights management associated to the content
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Security & Cryptography (AREA)
- Theoretical Computer Science (AREA)
- Television Signal Processing For Recording (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
The present invention relates to a personal video recording method and system. According to the personal video recording method and system, when recording is performed, a TS packet decryption processing module 300 decrypts a part of TS packets containing I-frame data and stores the decrypted TS packets in a memory, and authority control is performed on the other TS packets through a stored ECM, and therefore, when fast forward and rewind operation is carried out, only the decrypted TS packets are required to be played, so that the I-frame data can be displayed to a user, decryption operation is not required to be carried out, and a black screen problem can be avoided; since a part of the TS packets are decrypted, and the I-frame data are displayed to the user, and therefore, recorded content can be well protected, and the black screen problem in the fast forward and rewind operation can be solved; and the recorded content can be played on other set-top boxes having authority, and therefore, the use of the user can be greatly facilitated, the needs of the user can be satisfied, and great experience can be brought to the user.
Description
Technical field
The present invention relates to digital TV field, more particularly, to a kind of individual video kinescope method and system.
Background technology
PVR function (individual video is recorded a video, Personal video recorder, abbreviation PVR) is tool on current Set Top Box
Standby common function, user passes through the content of TV program of PVR function imprinting needs to hard disk or USB flash disk, carries out PVR content sight
See or play back, the operation such as fast forwarding and fast rewinding.
For protection copyright and privacy, need when carrying out PVR imprinting PVR content is protected.At present, PVR content is protected
Shield scheme is substantially the ECM (Entitlement Control Message) of burning video programs.In playback viewing, obtain current licensing status,
If Set Top Box still has permission, discharge corresponding CW (control word).But this protection scheme, in PVR content fast forwarding and fast rewinding,
There is the difficult point causing not allow to evade, the parsing due to CW needs 100 to 200ms, this just will result in generation blank screen during fast forwarding and fast rewinding,
Lead to user can not normally watch it is impossible to provide the user with good experience in fast forwarding and fast rewinding.For solving this problem, mesh
Front mostly to be evaded using the scheme of re-encryption+imprinting ECM, re-encryption use AES encryption (Advanced Encryption Standard) scheme, but
The AES key of each Set Top Box is inconsistent, and PVR content can not be play on another Set Top Box, even if this allows for
Other Set Top Boxes having permission nor broadcasting PVR content are it is impossible to meet the demand that user watches in other Set Top Boxes, to user
Make troubles.
Content of the invention
In view of this produce blank screen or lead to use it is necessary to be directed to during the PVR content fast forwarding and fast rewinding of above-mentioned PVR imprinting
The problem that family can not be watched on other Set Top Boxes, provides a kind of individual video kinescope method and system.
A kind of individual video kinescope method that the present invention provides, comprises the steps:
S10:Setting timer, and start timing;
S20:By obtaining ECM in TV programme code stream, parsed by ECM and obtain CW and ECM is saved in Set Top Box internal memory
In;
S30:It is decrypted by acquisition TS bag in TV programme code stream and using CW, whether contain in the TS bag after judging to decipher
There are I frame data;
S40:If it does, then the TS bag after deciphering is saved in memorizer, and the TS bag of storage is spliced, until group
Become complete I frame data, reset timer;If not containing, the storage of TS bag will not deciphered and arrive memorizer;
S50:After imprinting finishes, when the content of imprinting is carried out with fast forwarding and fast rewinding operation, the TS bag of the deciphering of preservation is entered
Row is play, and assumes I frame data.
In one of which embodiment, the clocking value of described timer is no less than 1000 milliseconds.
In one of which embodiment, described step S40 also includes:Reset timer, according between the time setting
Every restarting timer.
In one of which embodiment, described step S50 also includes:After imprinting finishes, point out user input one
Individual password unencrypted TS bag is encrypted, and judges whether current set top box becomes when carrying out fast forwarding and fast rewinding operation
Change, if changing, pointing out user input password to be verified, being verified and the TS bag of the deciphering of preservation is played out, be in
Existing I frame data;Checking is not passed through then not to play;If Set Top Box does not change, do not need to carry out password authentification.
A kind of individual video video recording system that the present invention provides, including:
Timer setup module, arranges timer, and starts timing;
ECM acquisition module, by obtaining ECM in TV programme code stream, is parsed by ECM and obtains CW and ECM is saved in machine
In top box internal memory;
TS bag decryption processing module, is decrypted by acquisition TS bag in TV programme code stream and using CW, after judging deciphering
TS bag in whether contain I frame data;If it does, then the TS bag after deciphering is saved in memorizer, and the TS bag of storage is entered
Row splicing, until forming complete I frame data, resets timer;If not containing, the storage of TS bag will not deciphered and arrive memorizer;
Fast forwarding and fast rewinding processing module, after imprinting finishes, when the content of imprinting is carried out with fast forwarding and fast rewinding operation, by preserve
The TS bag of deciphering plays out, and assumes I frame data.
In one of which embodiment, the clocking value of described timer is no less than 1000 milliseconds.
In one of which embodiment, described TS bag decryption processing module resets timer, according to the time setting
Timer is restarted at interval.
In one of which embodiment, described fast forwarding and fast rewinding processing module, after imprinting finishes, points out user input
One password unencrypted TS bag is encrypted, and judges whether current set top box becomes when carrying out fast forwarding and fast rewinding operation
Change, if changing, pointing out user input password to be verified, being verified and the TS bag of the deciphering of preservation is played out, be in
Existing I frame data;Checking is not passed through then not to play;If Set Top Box does not change, do not need to carry out password authentification.
Individual video kinescope method of the present invention and system, when carrying out imprinting, TS bag decryption processing module 300 is by a part
Preserve in memory after the deciphering of TS bag containing I frame data, other TS bags then carry out control of authority by the ECM of storage, this
Sample is when carrying out fast forwarding and fast rewinding operation, as long as playing the TS bag of deciphering, assuming I frame data can be it is not necessary to carry out again to user
Decryption oprerations, will not produce the problem of blank screen, and simply decipher part TS bag and assume I frame data to user, also can be right
Imprinting content is protected well, has thus both solved the problems, such as fast forwarding and fast rewinding blank screen, can make imprinting content at other again
Play on the Set Top Box having permission, thus having great convenience for the user to use, meeting the demand of user, bringing good experience.
Brief description
Fig. 1 is the flow chart of the individual video kinescope method in an embodiment;
Fig. 2 is the structure chart of the individual video video recording system in an embodiment.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, not
For limiting the present invention.
Fig. 1 is the flow chart of the individual video kinescope method in an embodiment, as shown in figure 1, the method include as follows
Step:
S10:Setting timer, and start timing.
When using PVR function, set a timer in the method first, during for controlling timing cycle and timing
Between.In this embodiment, the clocking value of timer is no less than 1000 milliseconds.
S20:By obtaining ECM in TV programme code stream, parsed by ECM and obtain CW and ECM is saved in Set Top Box internal memory
In.
After starting PVR imprinting, according to most basic mode, obtain ECM by TV programme code stream, solved by ECM
After separating out Control Word, ECM is saved in Set Top Box internal memory, so that after imprinting finishes, control word is parsed by ECM
To play the content of imprinting.
S30:It is decrypted by acquisition TS bag (transport stream packets) in TV programme code stream and using CW, judge the TS after deciphering
I frame data whether are contained in bag.
After storage ECM, then by acquisition TS bag (transport stream packets) in TV programme code stream.The TS bag obtaining from code stream
It is through encryption, produce to solve the problems, such as fast forwarding and fast rewinding in this embodiment, initially with CW, original TS bag is solved
Close, obtain the TS bag (i.e. clear stream) after deciphering.Due to only displaying for a user picture in fast forwarding and fast rewinding, and picture data is all
In I frame data, therefore after obtaining the TS bag after deciphering, then whether contain I frame data, according to TS bag in the TS bag after judging to decipher
I frame data whether are had to be operated accordingly.
S40:If it does, then the TS bag after deciphering is saved in memorizer, and the TS bag of storage is spliced, until group
Become complete I frame data, reset timer;If not containing, the storage of TS bag will not deciphered and arrive memorizer.
If containing I frame data in the TS bag after deciphering, the TS bag after this is deciphered is saved in memorizer, thus by I
Frame data have been saved in memorizer, for obtaining complete frame I frame data, i.e. a complete width picture, and be to the TS of storage
Bag is spliced, and until forming complete I frame data, then resets timer, thus obtains the complete I frame number of a frame
According to.
Because fast forwarding and fast rewinding is to carry out according to the multiplying power setting, for meeting the multiplying power of fast forwarding and fast rewinding, this step also includes:Weight
Put timer, restart timer at set time intervals.The time interval setting can set according to the multiplying power of fast forwarding and fast rewinding
Put time interval.
If not having I frame data in the TS bag after deciphering, this TS bag is not provided that picture in fast forwarding and fast rewinding, directly will not
Memorizer is arrived in deciphering TS bag storage.
S50:After imprinting finishes, when the content of imprinting is carried out with fast forwarding and fast rewinding operation, the TS bag of the deciphering of preservation is entered
Row is play, and assumes I frame data.
After imprinting finishes, when viewing imprinting content needs to carry out fast forwarding and fast rewinding, as long as playing the TS bag of deciphering, assume I
Frame data, to user, so avoid the need for being decrypted operation again during fast forwarding and fast rewinding, will not produce asking of blank screen
Topic, and simply part TS bag is deciphered and assume I frame data to user, also imprinting content can be protected well, this
Sample had just both solved the problems, such as fast forwarding and fast rewinding blank screen, can make to play on the Set Top Box that imprinting content has permission at other again, thus
Have great convenience for the user to use, meet the demand of user, bring good experience.
In addition, for strengthening the protection to imprinting content further, this step also includes:After imprinting finishes, point out user
One password of input unencrypted TS bag is encrypted, and judges whether current set top box is sent out when carrying out fast forwarding and fast rewinding operation
Changing, if changing, pointing out user input password to be verified, being verified and broadcast the TS bag of the deciphering of preservation
Put, assume I frame data;Checking is not passed through then not to play;If Set Top Box does not change, do not need to carry out password to test
Card.
This individual video kinescope method, when carrying out imprinting, is saved in after the part deciphering of the TS bag containing I frame data
In memorizer, other TS bags then carry out control of authority by the ECM of storage, so when carrying out fast forwarding and fast rewinding operation, as long as broadcasting
Put the TS bag of deciphering, assume I frame data and can will not produce the problem of blank screen it is not necessary to be decrypted operation again to user, and
And be part TS bag to be deciphered and assumes I frame data to user, also imprinting content can be protected well, thus both
Solve the problems, such as fast forwarding and fast rewinding blank screen, can make to play on the Set Top Box that imprinting content has permission at other again, thus greatly
Convenient for users, meet the demand of user, bring good experience.
Meanwhile, the present invention also provides a kind of individual video video recording system, as shown in Fig. 2 this system includes:
Timer setup module 100, arranges timer, and starts timing.
When using PVR function, timer setup module 100 sets a timer first, for controlling timing cycle
And timing time.In this embodiment, the clocking value of timer is no less than 1000 milliseconds.
ECM acquisition module 200, by obtaining ECM in TV programme code stream, is parsed by ECM and obtains CW and be saved in ECM
In Set Top Box internal memory.
After starting PVR imprinting, ECM acquisition module 200, according to most basic mode, is obtained by TV programme code stream
ECM, after parsing Control Word by ECM, ECM is saved in Set Top Box internal memory, so that after imprinting finishes, passes through
ECM parses control word to play the content of imprinting.
TS bag decryption processing module 300, is solved by acquisition TS bag (transport stream packets) in TV programme code stream and using CW
Close, whether contain I frame data in the TS bag after judging to decipher;If it does, then the TS bag after deciphering is saved in memorizer, and right
The TS bag of storage is spliced, and until forming complete I frame data, resets timer;If not containing, TS bag will not deciphered and deposit
Store up memorizer.
After storage ECM, TS bag deciphering judge module 300 is by acquisition TS bag (transport stream packets) in TV programme code stream.
The TS bag obtaining from code stream is through encryption, produces to solve the problems, such as fast forwarding and fast rewinding, TS bag is deciphered in this embodiment
Judge module 300 is decrypted to original TS bag initially with CW, obtains the TS bag (i.e. clear stream) after deciphering.Due to fast in F.F.
Only display for a user picture when moving back, and picture data is all in I frame data, therefore after obtaining the TS bag after deciphering, then judge
Whether contain I frame data in TS bag after deciphering, whether have I frame data to be operated accordingly according to TS bag.
If containing I frame data in the TS bag after deciphering, this TS bag after deciphering then is preserved by TS bag decryption processing module 300
To in memorizer, thus I frame data have been saved in memorizer, for obtaining complete frame I frame data, i.e. a complete width
Picture, will splice to the TS bag of storage, until forming complete I frame data, then reset timer, thus obtain
The complete I frame data of one frame.
Because fast forwarding and fast rewinding is to carry out according to the multiplying power setting, for meeting the multiplying power of fast forwarding and fast rewinding, TS bag decryption processing mould
Block 300 resets timer, and restarts timer at set time intervals.The time interval setting can be according to fast forwarding and fast rewinding
Multiplying power set interval.
If not having I frame data in the TS bag after deciphering, this TS bag is not provided that picture in fast forwarding and fast rewinding, and TS bag is deciphered
Processing module 300 directly will not deciphered the storage of TS bag and arrived memorizer.
Fast forwarding and fast rewinding processing module 400, after imprinting finishes, when the content of imprinting is carried out with fast forwarding and fast rewinding operation, will protect
The TS bag of the deciphering deposited plays out, and assumes I frame data.
After imprinting finishes, when viewing imprinting content needs to carry out fast forwarding and fast rewinding, as long as fast forwarding and fast rewinding processing module 400 is broadcast
Put the TS bag of deciphering, assume I frame data to user, so avoid the need for being decrypted behaviour again during fast forwarding and fast rewinding
Make, the problem of blank screen will not be produced, and simply part TS bag is deciphered and assume I frame data to user, also can be in imprinting
Hold and protected well, thus both solved the problems, such as fast forwarding and fast rewinding blank screen, imprinting content can be made again to have permission at other
Set Top Box on play, thus have great convenience for the user use, meet the demand of user, bring good experience.
In addition, for strengthening the protection to imprinting content further, fast forwarding and fast rewinding processing module 400, after imprinting finishes, carries
Show one password of user input that unencrypted TS bag is encrypted, judge current set top box when carrying out fast forwarding and fast rewinding operation
Whether change, if changing, pointing out user input password to be verified, being verified the TS bag of the deciphering preserving
Play out, assume I frame data;Checking is not passed through then not to play;If Set Top Box does not change, do not need to carry out close
Code checking.
This individual video video recording system, when carrying out imprinting, a part is contained I frame number by TS bag decryption processing module 300
According to the deciphering of TS bag after preserve in memory, the ECM that other TS bags then pass through to store carries out control of authority, is so carrying out soon
When entering fast reverse operation, as long as playing the TS bag of deciphering, assuming I frame data can be it is not necessary to be decrypted operation, no again to user
The problem of blank screen can be produced, and simply part TS bag is deciphered and assume I frame data to user, also imprinting content can be carried out
Protect well, thus both solved the problems, such as fast forwarding and fast rewinding blank screen, the machine top that imprinting content has permission at other can be made again
Play on box, thus having great convenience for the user to use, meeting the demand of user, bringing good experience.
Individual video kinescope method of the present invention and system, when carrying out imprinting, TS bag decryption processing module 300 is by a part
Preserve in memory after the deciphering of TS bag containing I frame data, other TS bags then carry out control of authority by the ECM of storage, this
Sample is when carrying out fast forwarding and fast rewinding operation, as long as playing the TS bag of deciphering, assuming I frame data can be it is not necessary to carry out again to user
Decryption oprerations, will not produce the problem of blank screen, and simply decipher part TS bag and assume I frame data to user, also can be right
Imprinting content is protected well, has thus both solved the problems, such as fast forwarding and fast rewinding blank screen, can make imprinting content at other again
Play on the Set Top Box having permission, thus having great convenience for the user to use, meeting the demand of user, bringing good experience.
These are only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Any modification, equivalent and improvement of being made within principle etc., should be included within the scope of the present invention.
Claims (8)
1. a kind of individual video kinescope method is it is characterised in that comprise the steps:
S10:Setting timer, and start timing;
S20:By obtaining ECM in TV programme code stream, parsed by ECM and obtain CW and ECM is saved in Set Top Box internal memory;
S30:It is decrypted by acquisition TS bag in TV programme code stream and using CW, in the TS bag after judging to decipher, whether contain I
Frame data;
S40:If it does, then the TS bag after deciphering is saved in memorizer, and the TS bag of storage is spliced, until having formed
Whole I frame data, reset timer;If not containing, the storage of TS bag will not deciphered and arrive memorizer;
S50:After imprinting finishes, when the content of imprinting is carried out with fast forwarding and fast rewinding operation, the TS bag of the deciphering of preservation is broadcast
Put, assume I frame data.
2. individual video kinescope method according to claim 1 is it is characterised in that the clocking value of described timer is no less than
1000 milliseconds.
3. individual video kinescope method according to claim 1 is it is characterised in that described step S40 also includes:Reset meter
When device, restart timer at set time intervals.
4. individual video kinescope method according to claim 1 is it is characterised in that described step S50 also includes:In imprinting
After finishing, point out one password of user input unencrypted TS bag is encrypted, judge when carrying out fast forwarding and fast rewinding operation
Whether current set top box changes, if changing, pointing out user input password to be verified, being verified preservation
The TS bag of deciphering plays out, and assumes I frame data;Checking is not passed through then not to play;If Set Top Box does not change, no
Need to carry out password authentification.
5. a kind of individual video video recording system is it is characterised in that include:
Timer setup module, arranges timer, and starts timing;
ECM acquisition module, by obtaining ECM in TV programme code stream, is parsed by ECM and obtains CW and ECM is saved in Set Top Box
In internal memory;
TS bag decryption processing module, is decrypted by acquisition TS bag in TV programme code stream and using CW, judges the TS after deciphering
I frame data whether are contained in bag;If it does, then the TS bag after deciphering is saved in memorizer, and the TS bag of storage is spelled
Connect, until forming complete I frame data, reset timer;If not containing, the storage of TS bag will not deciphered and arrive memorizer;
Fast forwarding and fast rewinding processing module, after imprinting finishes, when the content of imprinting is carried out with fast forwarding and fast rewinding operation, the deciphering that will preserve
TS bag play out, assume I frame data.
6. individual video video recording system according to claim 5 is it is characterised in that the clocking value of described timer is no less than
1000 milliseconds.
7. individual video video recording system according to claim 5 is it is characterised in that described TS bag decryption processing module resets
Timer, restarts timer at set time intervals.
8. individual video video recording system according to claim 5 is it is characterised in that described fast forwarding and fast rewinding processing module is being carved
After record finishes, point out one password of user input unencrypted TS bag is encrypted, sentence when carrying out fast forwarding and fast rewinding operation
Whether disconnected current set top box changes, if changing, pointing out user input password to be verified, being verified and will preserve
The TS bag of deciphering play out, assume I frame data;Checking is not passed through then not to play;If Set Top Box does not change,
Do not need to carry out password authentification.
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101167357A (en) * | 2005-04-26 | 2008-04-23 | 皇家飞利浦电子股份有限公司 | A device for and a method of processing a data stream having a sequence of packets and timing information related to the packets |
CN102123281A (en) * | 2011-01-07 | 2011-07-13 | 中兴通讯股份有限公司 | Fast forward and fast backward treatment method and device during video playing and mobile terminal |
CN103621060A (en) * | 2011-06-22 | 2014-03-05 | Nds有限公司 | Fast service change |
-
2016
- 2016-09-27 CN CN201610855223.5A patent/CN106385633B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101167357A (en) * | 2005-04-26 | 2008-04-23 | 皇家飞利浦电子股份有限公司 | A device for and a method of processing a data stream having a sequence of packets and timing information related to the packets |
CN102123281A (en) * | 2011-01-07 | 2011-07-13 | 中兴通讯股份有限公司 | Fast forward and fast backward treatment method and device during video playing and mobile terminal |
CN103621060A (en) * | 2011-06-22 | 2014-03-05 | Nds有限公司 | Fast service change |
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