CN107396190A - A kind of method and apparatus of pre-recording channel number renewal - Google Patents
A kind of method and apparatus of pre-recording channel number renewal Download PDFInfo
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- CN107396190A CN107396190A CN201710712811.8A CN201710712811A CN107396190A CN 107396190 A CN107396190 A CN 107396190A CN 201710712811 A CN201710712811 A CN 201710712811A CN 107396190 A CN107396190 A CN 107396190A
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- 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
- H04N21/458—Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
- H04N21/4586—Content update operation triggered locally, e.g. by comparing the version of software modules in a DVB carousel to the version stored locally
-
- 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
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4335—Housekeeping operations, e.g. prioritizing content for deletion because of storage space restrictions
-
- 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
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4348—Demultiplexing of additional data and video streams
Abstract
The embodiment of the present invention provides a kind of method and apparatus of pre-recording channel number renewal, and methods described includes：Based on the first channel number carried in the pre-recording request received, parsed from code stream and obtain the first channel effect information corresponding with first channel number, the channel effect information includes original network identification, transport stream identification and service identification；Before recorded event corresponding to being asked in the pre-recording starts, if detecting, channel list performs renewal operation, based on first channel number, is parsed from current code stream and obtains the second channel effect information corresponding with first channel number；If the first channel effect information is different from the second channel effect information, the channel list after traversal renewal, second channel number consistent with the first channel effect information is searched.Can be because the renewal of channel list cause to record mistake or failure, the problem of influenceing Consumer's Experience to avoid passing through that the information such as channel number are possible to as the PVR identification informations recorded.
Description
Technical field
The present embodiments relate to stream-recording field, more particularly to the method and dress of a kind of renewal of pre-recording channel number
Put.
Background technology
With the development of DTV, functional requirement of the user to DTV STB also increases increasingly, more and more
TV or set top box both increase PVR (Per sonal Video Recorder, personal video recording) service function.It is and pre-
It is one most basic functional component of PVR service functions about to record, other such as time shifts, video recording and retrogressing, F.F.,
The functions such as pause, bring and digitized unusually brilliant and interactive follow one's bent for user.Therefore it provides more hommization
Service, perfect displaying predetermined programme plays and scheduling recording function is the necessary technological improvement power of PVR technical fields.
Pre-recording in current PVR services is generally as follows realization, and user wants to record the program of certain time period, only
Inputting channel number or channel designation in the application UI interfaces for provide PVR services, such as user is needed to wish to record center one
The platform content of TV program that some time plays in next week, usual PVR services can pass through channel based on the recording demand of user
Number, the identification information as PVR scheduling recording functions such as channel designation, programm name, i.e. PVR services can record the target program
Channel number or the essential information such as channel designation, for example, system can record and preserve channel number：2；Channel designation：CCTV1, section
Mesh title：Recording identification information of the information such as Today's Law as target program, after the startup time of reservation is reached, PVR's
Recording function can search the channel consistent with the identification information in TV programme code stream, and then start and record so that user sees
See.
But if inputted in user within startup time of the pre-recording request to pre-recording request, user couple
Channel list is updated, for example, the operation such as tuning or channel editor sequence again, it is possible to so that channel list occurs
Change, for example, the channel number of reserve requests is adjusted to channel number 3 by channel number 2, so as to cause PVR to start in the channel of mistake
Record, or due to the consistent program of the identification information that can not be found with record, desired recording can not be such as found from channel 2
Entitled " Today's Law " program, so as to record failure, that is to say, that in the prior art, pass through the information such as channel number make
It is possible to that Consumer's Experience can be influenceed because the renewal of channel list causes to record mistake or failure for the PVR identification informations recorded.
The content of the invention
The embodiment of the present invention provides a kind of method and apparatus of pre-recording channel number renewal, to avoid passing through channel number
Etc. information as the PVR identification informations recorded be possible to can because channel list renewal cause record mistake or failure, influence
The problem of Consumer's Experience.
First aspect of the embodiment of the present invention provides a kind of method of pre-recording channel number renewal, and methods described includes：
Based on the first channel number carried in the pre-recording request received, parse and obtain and first channel from code stream
First channel effect information corresponding to number, the channel effect information include original network identification, transport stream identification and business
Mark；
Before recorded event corresponding to pre-recording request starts, if detecting, channel list performs renewal operation, base
In first channel number, parsed from current code stream and obtain the second channel effect letter corresponding with first channel number
Breath；
If the first channel effect information is different from the second channel effect information, the channel list after traversal renewal,
Search second channel number consistent with the first channel effect information；
The first channel number according to corresponding to second channel number found replaces the pre-recording request, to cause in institute
Recorded event is stated in the second channel number to start.
On the other hand the embodiment of the present invention also provides a kind of device of pre-recording channel number renewal, described device includes：
Channel parsing module, for based on the first channel number carried in the pre-recording request received, being parsed from code stream
Obtain the first channel effect information corresponding with first channel number, the channel effect information include original network identification,
Transport stream identification and service identification；
Detection process module, for the pre-recording request corresponding to recorded event start before, if detecting channel list
Perform renewal operation, then based on first channel number, from current code stream parsing obtain corresponding with first channel number
The second channel effect information；
Searching modul, if different from the second channel effect information for the first channel effect information, traversal renewal
Channel list afterwards, search second channel number consistent with the first channel effect information；
Channel number update module, the is replaced corresponding to the pre-recording request for the second channel number for finding according to
One channel number, in the second channel number to start in the recorded event.
The embodiment of the present invention, the first channel number carried in the pre-recording request received is primarily based on, from code stream
Parsing obtains the first channel effect information corresponding with first channel number, and the channel effect information includes primitive network mark
Knowledge, transport stream identification and service identification；Before recorded event corresponding to pre-recording request starts, if detecting channel
List performs renewal operation, then based on first channel number, parses and obtain and first channel number from current code stream
Corresponding second channel effect information；Because channel effect information can uniquely identify specific channel number, obtain twice
Channel effect information if it is different, then explanation the first channel number channel list renewal after changed, then traversal renewal
Channel list afterwards, search second channel number consistent with the first channel effect information；According to it is described find second
Channel number replaces the first channel number corresponding to the pre-recording request, to cause in the recorded event in the second channel number
Start.Compared to prior art, it is used as by channel number and records foundation, the application adds channel on the basis of channel number
Effect information, the mark or supplement of channel number are used as by channel effect information, if channel effect information changes, said
Bright channel number to be recorded changes as channel list updates, therefore can not start recording in original channel number, and then
Correct channel number is reversely found by channel effect information, and starts in correct channel number and records, can so be kept away
Exempt from prior art because the problem of renewal of channel list causes to record mistake or failure, improves Consumer's Experience.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of flow chart of the method for pre-recording channel number renewal provided in an embodiment of the present invention；
Fig. 2 is a kind of structural representation of the device of pre-recording channel number renewal provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The term " comprising " and " having " of description and claims of this specification and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, the device for the process or structure for containing series of steps is not necessarily limited to clearly arrange
It is that those structures or step for going out but may include are not listed clearly or for the intrinsic other steps of these processes or device
Rapid or structure.
First aspect of the embodiment of the present invention as shown in Figure 1 provides a kind of flow of the method for pre-recording channel number renewal
Figure, methods described include：
Step S101, based on the first channel number for carrying in the pre-recording request received, from code stream parsing obtain and institute
The first channel effect information corresponding to the first channel number is stated, the channel effect information includes original network identification, transmission is failed to be sold at auction
Knowledge and service identification；
Corresponding to step S101, it is specifically included：
PSI/SI data message tables are searched from the code stream received；
Original network identification corresponding with first channel number, transport stream will be obtained from the PSI/SI data messages table
Mark and service identification form the first channel effect information；
For in DTV DVB code stream, generally Original can be obtained from its PSI/SI data message table
Network ID（Original network identification）, Transport Stream ID（Transport stream identification）, Service ID（Business mark
Know）, a television channel is uniquely determined with these three ID, and will not change with the change of channel list.
In actual use, although these three ID can uniquely determine a television channel, for a user, its
The implication of these three id fields is not aware that, when recording, user terminal mostly just specifies using channel number and is used as displaying predetermined programme
The mark of recording, in most cases, channel number can uniquely identify a channel, but in the event of background technology
Described in channel list more news, have very maximum probability, channel number can change therewith so that PVR record module
Start in the channel of mistake and record, or even just without recording.
Therefore, in the embodiment of the present application, user terminal can only specify the first channel of reservation when starting pre-recording
Number, the PVR that television set is sent to by pre-recording request records module, but for television system backstage, it can base
In first channel number, corresponding with the first channel number original network identification, transport stream identification and industry are parsed from code stream
Business mark, that is to say, that when adding reservation information, except the channel number of recording reservation, programm name, record initial time etc.
Outside essential information, system can additionally preserve the first channel effect information corresponding to the first channel number.Such as establish a channel number
With the corresponding relation of channel effect information.
As shown in table 1：
| Channel number | Channel designation | Programm name | Time started | End time | original network id | transport stream id | service id |
Step S102, before recorded event corresponding to pre-recording request starts, if detecting, channel list performs renewal
Operation, then based on first channel number, parsed from current code stream and obtain the second frequency corresponding with first channel number
Road effect information；
Further, renewal operation is performed for detecting channel list described in step S102, including：
Detect whether to receive again the instruction of tuning；
If, it is determined that the channel list performs renewal operation；
Or detect whether to receive channel edit instruction；
If, it is determined that the channel list performs renewal operation.
On television, channel list renewal can be based on a variety of reasons, such as tuning or channel editor etc. again.
In channel list in the updated, the channel number based on reservation, i.e. the first channel number, parsed again from code stream
Go out the second channel effect information corresponding with the first channel number, the second channel effect information still includes primitive network mark
These three marks of knowledge, transport stream identification and service identification.
Step S103, if the first channel effect information is different from the second channel effect information, traversal renewal
Channel list afterwards, search second channel number consistent with the first channel effect information；
If after channel list renewal, it is reserved the content of recording its channel number and is possible to change, it is also possible to it is constant, if do not had
Channel number changes, then the first channel effect information should be identical with the second channel effect information, now still can be in the first frequency
Start reservation on Taoist monastic name.But if the first channel effect information and the second channel effect information are inconsistent, then explanation is in channel
After list update, its channel number of the content of pre-recording has occurred and that change, cannot now start in the first channel number pre-
The operation about recorded, it is necessary to know in the channel list after renewal, the content that user initially wants to record is at present specifically at which
In channel number, therefore, it is necessary to travel through renewal after channel list, search with the first channel effect information it is a kind of second frequency
Taoist monastic name.
Certainly, if system can learn the channel number of renewal by other means, then traversal can not also be used
Mode, directly by original channel number be revised as renewal channel number.
Further, corresponding step S103, the channel list after the traversal renewal, is searched and the first channel effect
Also include before the second consistent channel number of information：
Mode field is received according to corresponding to first channel number recorded in the channel list before renewal, determines described first
The reception mode of channel number, the reception mode are one kind in cable channel, satellite channel and antenna channel；
If television can know that reception mode corresponding to the first channel number before renewal, then as a rule, even if channel list
In channel number have renewal, its reception mode also will not arbitrarily change, and the first channel number is corresponding before TV can look only for renewal
Reception mode, such as antenna channel/cable channel/satellite channel, the scope of traversal search can be reduced, improve and search channel
Number speed.
Accordingly, the channel list after the traversal renewal, searches second consistent with the first channel effect information
Channel number, including：
Based on the reception mode of first channel number, in channel list in the updated, have and the described first frequency all
Traveled through in the reception mode identical channel of Taoist monastic name, search second channel consistent with the first channel effect information
Number.
Step S104, the first channel according to corresponding to second channel number found replaces the pre-recording request
Number, in the second channel number to start in the recorded event.
When finding the second channel number, the first channel number is replaced using the second channel number, so, pre-recording starts
When, recording will be started in the second channel number, the content of the first channel number will not be recorded again, the recording situation of system will not be sent out
The problem of giving birth to entanglement or not recording.
Further, the method that the present embodiment provides also includes：
If after the channel list after traversal renewal, second channel number consistent with the first channel effect information can not be found；
Recorded event corresponding to then deleting the pre-recording request is recorded with cancelling.
If after channel list renewal, the channel where the content that user wants to record is cancelled or is not present, also without frequency
Taoist monastic name updates, and the content of the pre-recording is not present in code stream, now, after the channel list after traversal updates, also can not
Second channel number consistent with the first channel effect information is found, then can delete reservation recording, that is, delete pre-recording
Recorded event corresponding to request, cancel and recording.
The embodiment of the present invention, the first channel number carried in the pre-recording request received is primarily based on, from code stream
Parsing obtains the first channel effect information corresponding with first channel number, and the channel effect information includes primitive network mark
Knowledge, transport stream identification and service identification；Before recorded event corresponding to pre-recording request starts, if detecting channel
List performs renewal operation, then based on first channel number, parses and obtain and first channel number from current code stream
Corresponding second channel effect information；Because channel effect information can uniquely identify specific channel number, obtain twice
Channel effect information if it is different, then explanation the first channel number channel list renewal after changed, then traversal renewal
Channel list afterwards, search second channel number consistent with the first channel effect information；According to it is described find second
Channel number replaces the first channel number corresponding to the pre-recording request, to cause in the recorded event in the second channel number
Start.Compared to prior art, it is used as by channel number and records foundation, the application adds channel on the basis of channel number
Effect information, the mark or supplement of channel number are used as by channel effect information, if channel effect information changes, said
Bright channel number to be recorded changes as channel list updates, therefore can not start recording in original channel number, and then
Correct channel number is reversely found by channel effect information, and starts in correct channel number and records, can so be kept away
Exempt from prior art because the problem of renewal of channel list causes to record mistake or failure, improves Consumer's Experience.
Based on identical inventive concept, present invention also provides a kind of device of pre-recording channel number renewal, such as Fig. 2 institutes
Show, described device 200 includes：
Channel parsing module 201, for based on the first channel number carried in the pre-recording request received, being solved from code stream
Analysis obtains the first channel effect information corresponding with first channel number, and the channel effect information includes primitive network mark
Knowledge, transport stream identification and service identification；
Detection process module 202, for the pre-recording request corresponding to recorded event start before, if detecting channel column
Table performs renewal operation, then based on first channel number, parses and obtain and first channel number pair from current code stream
The the second channel effect information answered；
Searching modul 203, if different from the second channel effect information for the first channel effect information, travel through more
Channel list after new, search second channel number consistent with the first channel effect information；
Channel number update module 204, it is corresponding that the second channel number for being found according to replaces the pre-recording request
The first channel number, in the second channel number to start in the recorded event.
Further, the channel parsing module 201, including：
Tables of data parsing module, for searching PSI/SI data message tables from the code stream received；
Data extraction module, for original corresponding with first channel number will to be obtained from the PSI/SI data messages table
Beginning network identity, transport stream identification and service identification form the first channel effect information；
Further, the detection process module 202 includes：
Tuning instruction detection module, for detecting whether receiving again the instruction of tuning；
If, it is determined that the channel list performs renewal operation；
Or channel editor's detection module, for detecting whether receiving channel edit instruction；
If, it is determined that the channel list performs renewal operation.
Further, described device 200 also includes：
Reception mode determining module, for the reception according to corresponding to first channel number recorded in the channel list before renewal
Mode field, determines the reception mode of first channel number, and the reception mode is cable channel, satellite channel and antenna
One kind in channel；
Accordingly, the searching modul is specifically used for the reception mode based on first channel number, channel column in the updated
In table, traveled through, searched and described first in all reception mode identical channels for having with first channel number
The second consistent channel number of channel effect information.
Further, described device 200 also includes：
Cancel and record module, if after for traveling through the channel list after updating, can not find and the first channel effect information
The second consistent channel number；
Recorded event corresponding to then deleting the pre-recording request is recorded with cancelling.
The embodiment of the present invention, the first channel number carried in the pre-recording request received is primarily based on, from code stream
Parsing obtains the first channel effect information corresponding with first channel number, and the channel effect information includes primitive network mark
Knowledge, transport stream identification and service identification；Before recorded event corresponding to pre-recording request starts, if detecting channel
List performs renewal operation, then based on first channel number, parses and obtain and first channel number from current code stream
Corresponding second channel effect information；Because channel effect information can uniquely identify specific channel number, obtain twice
Channel effect information if it is different, then explanation the first channel number channel list renewal after changed, then traversal renewal
Channel list afterwards, search second channel number consistent with the first channel effect information；According to it is described find second
Channel number replaces the first channel number corresponding to the pre-recording request, to cause in the recorded event in the second channel number
Start.Compared to prior art, it is used as by channel number and records foundation, the application adds channel on the basis of channel number
Effect information, the mark or supplement of channel number are used as by channel effect information, if channel effect information changes, said
Bright channel number to be recorded changes as channel list updates, therefore can not start recording in original channel number, and then
Correct channel number is reversely found by channel effect information, and starts in correct channel number and records, can so be kept away
Exempt from prior art because the problem of renewal of channel list causes to record mistake or failure, improves Consumer's Experience.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
- A kind of 1. method of pre-recording channel number renewal, it is characterised in that methods described includes：Based on the first channel number carried in the pre-recording request received, parse and obtain and first channel from code stream First channel effect information corresponding to number, the channel effect information include original network identification, transport stream identification and business Mark；Before recorded event corresponding to pre-recording request starts, if detecting, channel list performs renewal operation, base In first channel number, parsed from current code stream and obtain the second channel effect letter corresponding with first channel number Breath；If the first channel effect information is different from the second channel effect information, the channel list after traversal renewal, Search second channel number consistent with the first channel effect information；The first channel number according to corresponding to second channel number found replaces the pre-recording request, to cause in institute Recorded event is stated in the second channel number to start.
- 2. the method for channel number renewal according to claim 1, it is characterised in that described based on the pre-recording received The first channel number carried in request, parsed from code stream and obtain the first channel effect letter corresponding with first channel number Breath, including：PSI/SI data message tables are searched from the code stream received；Original network identification corresponding with first channel number, transport stream will be obtained from the PSI/SI data messages table Mark and service identification form the first channel effect information.
- 3. the method for channel number renewal according to claim 2, it is characterised in that the detection channel list performs renewal Operation, including：Detect whether to receive again the instruction of tuning；If, it is determined that the channel list performs renewal operation；Or detect whether to receive channel edit instruction；If, it is determined that the channel list performs renewal operation.
- 4. the method for channel number renewal according to claim 3, it is characterised in that the channel column after the traversal renewal Table, also include before searching the second channel number consistent with the first channel effect information：Mode field is received according to corresponding to first channel number recorded in the channel list before renewal, determines described first The reception mode of channel number, the reception mode are one kind in cable channel, satellite channel and antenna channel；Accordingly, the channel list after the traversal renewal, searches second channel consistent with the first channel effect information Number, including：Based on the reception mode of first channel number, in channel list in the updated, have and the described first frequency all Traveled through in the reception mode identical channel of Taoist monastic name, search second channel consistent with the first channel effect information Number.
- 5. according to any described channel number update method in claim 1 ~ 4, it is characterised in that methods described also includes：If after the channel list after traversal renewal, second channel number consistent with the first channel effect information can not be found；Recorded event corresponding to then deleting the pre-recording request is recorded with cancelling.
- 6. a kind of device of pre-recording channel number renewal, it is characterised in that described device includes：Channel parsing module, for based on the first channel number carried in the pre-recording request received, being parsed from code stream Obtain the first channel effect information corresponding with first channel number, the channel effect information include original network identification, Transport stream identification and service identification；Detection process module, for the pre-recording request corresponding to recorded event start before, if detecting channel list Perform renewal operation, then based on first channel number, from current code stream parsing obtain corresponding with first channel number The second channel effect information；Searching modul, if different from the second channel effect information for the first channel effect information, traversal renewal Channel list afterwards, search second channel number consistent with the first channel effect information；Channel number update module, the is replaced corresponding to the pre-recording request for the second channel number for finding according to One channel number, in the second channel number to start in the recorded event.
- 7. the device of channel number renewal according to claim 6, it is characterised in that the channel parsing module, including：Tables of data parsing module, for searching PSI/SI data message tables from the code stream received；Data extraction module, for original corresponding with first channel number will to be obtained from the PSI/SI data messages table Beginning network identity, transport stream identification and service identification form the first channel effect information.
- 8. the device of channel number renewal according to claim 7, it is characterised in that the detection process module includes：Tuning instruction detection module, for detecting whether receiving again the instruction of tuning；If, it is determined that the channel list performs renewal operation；Or channel editor's detection module, for detecting whether receiving channel edit instruction；If, it is determined that the channel list performs renewal operation.
- 9. the device of channel number renewal according to claim 8, it is characterised in that described device also includes：Reception mode determining module, for the reception according to corresponding to first channel number recorded in the channel list before renewal Mode field, determines the reception mode of first channel number, and the reception mode is cable channel, satellite channel and antenna One kind in channel；Accordingly, the searching modul is specifically used for the reception mode based on first channel number, channel column in the updated In table, traveled through, searched and described first in all reception mode identical channels for having with first channel number The second consistent channel number of channel effect information.
- 10. according to any described channel number updating device in claim 6 ~ 9, it is characterised in that described device also includes：Cancel and record module, if after for traveling through the channel list after updating, can not find and the first channel effect information The second consistent channel number；Recorded event corresponding to then deleting the pre-recording request is recorded with cancelling.
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