CN104301785B - A kind of reminding method and relevant device of set-top box searching programs - Google Patents

A kind of reminding method and relevant device of set-top box searching programs Download PDF

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Publication number
CN104301785B
CN104301785B CN201410453576.3A CN201410453576A CN104301785B CN 104301785 B CN104301785 B CN 104301785B CN 201410453576 A CN201410453576 A CN 201410453576A CN 104301785 B CN104301785 B CN 104301785B
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China
Prior art keywords
frequency point
nit
current
history
top box
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CN104301785A (en
Inventor
耿宜国
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Shenzhen Skyworth Digital Technology Co Ltd
Shenzhen Skyworth Software Co Ltd
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Shenzhen Skyworth Digital Technology Co Ltd
Shenzhen Skyworth Software Co Ltd
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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
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/4424—Monitoring of the internal components or processes of the client device, e.g. CPU or memory load, processing speed, timer, counter or percentage of the hard disk space used
    • 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
    • H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
    • 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
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44204—Monitoring of content usage, e.g. the number of times a movie has been viewed, copied or the amount which has been watched
    • 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
    • H04N21/45—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
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet

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  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

The embodiment of the invention discloses a kind of method and relevant device of set-top box searching programs, this method includes：Set-top box parses network information table NIT, to obtain the current NIT version numbers that the NIT includes；And obtain history frequency point number and the history NIT version numbers prestored in the database；It detects the current NIT version numbers and whether history NIT version numbers is consistent；If the current NIT version numbers and history NIT version numbers are inconsistent, the current frequency point number in the NIT is counted, and further detects the current frequency point number and whether the history frequency point number is consistent；If the current frequency point number and the history frequency point number are inconsistent, prompting message is exported, the prompting message is for prompting user's searching programs.The embodiment of the present invention can prompt user's searching programs by the variation of intelligence, efficient front monitoring front-end NIT, the response of unnecessary so as to avoid some, frequent prompt user's searching programs.

Description

A kind of reminding method and relevant device of set-top box searching programs
Technical field
The present invention relates to digital TV technology more particularly to a kind of reminding methods and correlation of set-top box searching programs Equipment.
Background technology
With the rapid development of digital television techniques, DTV STB also enters huge numbers of families, and becomes people Watch the major ways of TV programme.In addition, becoming increasingly abundant for digital television function also promotes the continuous of set-top box functionality Go out newly, and program searching is exactly one of set-top box basic function.NIT (Network Information Table, the network information Table) it is the table that digital television system is used to transmit the network information, including version number, frequency point information, logical channel Number and the information such as Service_ID, main purposes, which is set-top box, can carry out searching for TV programme when program changes Rope.Most of set-top boxes are to realize program searching, principle by front monitoring front-end NIT at present：When front end NIT versions It changes, set-top box will prompt user to scan for program.And any information for including in NIT changes, then can draw It plays NIT versions to change therewith, as long as thus, the information one in NIT changes, set-top box will be promoted to prompt user Carry out program searching.Currently, since program source is more and more abundant, the information in the NIT of front end may frequently change, every in this way Secondary variation can all trigger set-top box prompt user's searching programs, and the variation of some information is It is not necessary to prompt user in NIT Searching programs, such as when only having logical channel numbers to be changed in NIT, this set-top box is It is not necessary to go prompt user Searching programs, frequently prompt user's searching programs can increase the live load of set-top box in addition.
Invention content
An embodiment of the present invention provides a kind of reminding methods and relevant device of set-top box searching programs, can pass through intelligence Can, the variation of efficient front monitoring front-end NIT prompt user's searching programs, so as to avoid unnecessary prompt user search section Purpose responds.
First aspect of the embodiment of the present invention provides a kind of reminding method of set-top box searching programs, including：
Set-top box parses network information table NIT, to obtain the current NIT version numbers that the NIT includes；
The set-top box obtains history frequency point number and the history NIT version numbers prestored in the database；
The set-top box detects the current NIT version numbers and whether history NIT version numbers are consistent；
If the current NIT version numbers and history NIT version numbers are inconsistent, the set-top box counts the NIT In current frequency point number, and detect the current frequency point number and whether the history frequency point number consistent；
If the current frequency point number and the history frequency point number are inconsistent, the set-top box exports prompting message, described Prompting message is for prompting user's searching programs.
Second aspect of the embodiment of the present invention provides a kind of set-top box, including：
Resolution unit, for parsing network information table NIT, to obtain the current NIT version numbers that the NIT includes；
Acquiring unit, for obtaining the history frequency point number and the history NIT version numbers that prestore in the database；
Detection unit, it is whether consistent for detecting the current NIT version numbers and history NIT version numbers；
Statistic unit detects the current NIT version numbers and history NIT version numbers for working as the detection unit When inconsistent, the current frequency point number in the NIT is counted；
The detection unit is additionally operable to detect the current frequency point number and whether the history frequency point number is consistent；
Output unit detects that the current frequency point number and the history frequency point number are inconsistent for working as the detection unit When, prompting message is exported, the prompting message is for prompting user's searching programs.
In the embodiment of the present invention, set-top box parses network information table NIT first, to obtain the current NIT that the NIT includes Version number then obtains history frequency point number and the history NIT version numbers prestored in the database, then detects described current Whether NIT version numbers and history NIT version numbers are consistent, and only when above-mentioned two NIT version numbers are inconsistent, set-top box is Then the current frequency point number in the NIT is counted, and whether further detects the current frequency point number and the history frequency point number Unanimously, only when above-mentioned two frequency point number is inconsistent, set-top box can just export prompting message to prompt user's searching programs.It is logical It crosses the implementation embodiment of the present invention, when the NIT of monitoring STB front end, after detecting that the version of NIT changes, does not prompt immediately User carries out program searching, but whether the frequency point number further detected in NIT has change, only when frequency point number also changes User's searching programs are just prompted when change, to allow set-top box to pass through intelligence, the variation of efficient front monitoring front-end NIT prompts User's searching programs, the response of unnecessary so as to avoid some, frequent prompt user's searching programs.
In addition, by implementing the embodiment of the present invention, set-top box is no longer caused by detecting that any information changes in NIT NIT versions, which change, suggests that user carries out program searching, and in the no variation of NIT intermediate frequencies points, other information changes In the case of, set-top box can impact, into one in the information for automatically updating variation from the background to watch program to user Step enhances user experience.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of flow diagram of the reminding method of set-top box searching programs disclosed by the embodiments of the present invention；
Fig. 2 is the flow diagram of the reminding method of another set-top box searching programs disclosed by the embodiments of the present invention；
Fig. 3 is a kind of structural schematic diagram of set-top box disclosed by the embodiments of the present invention；
Fig. 4 is the structural schematic diagram of another set-top box disclosed by the embodiments of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a kind of reminding methods and relevant device of set-top box searching programs, can pass through intelligence Can, the variation of efficient front monitoring front-end NIT prompt user's searching programs, so as to avoid unnecessary prompt user search section Purpose responds.It is described in detail separately below.
Referring to Fig. 1, the flow that Fig. 1 is a kind of reminding method of set-top box searching programs disclosed by the embodiments of the present invention is shown It is intended to.In the reminding method of set-top box searching programs described in Fig. 1, in order to realize that set-top box is purposive to TV programme It scans for, write-in program in set-top box of the embodiment of the present invention, for monitoring the variation in set-top box front-end NIT in real time.For The implementation embodiment of the present invention, set-top box one end are connected with television set, and one end is connected with external information source device, can protect in this way Card normally carries out signal transmission in power supply.In the embodiment of the present invention, set-top box, which will have, receives digital television program Function, it is possibility to have the multimedia functions such as game, e _-Government Service, security service, videozine subscription are played in shopping online. Wherein, set-top box can be digital satellite set-top box (Digital Video Broadcasting-Satellite, DVB-S), Can be Europe superscript digital ground set-top box (Digital Video Broadcasting-Terrestrial, DVB-T), international number Word terrestrial set top box (Digital Terrestrial Multimedia Broadcast, DTMB), can also be cable television Top box of digital machine (Digital Video Broadcasting-Cable, DVB-C) etc., wherein each set-top box again can be further It is subdivided into one-way set-top box, bi-directional set-top box and high definition set top box, the embodiment of the present invention is not construed as limiting the type of set-top box.
As shown in Figure 1, a kind of reminding method of set-top box searching programs disclosed by the embodiments of the present invention may include following Step：
S101, set-top box parse network information table NIT, to obtain the current NIT version numbers that the NIT includes.
In the embodiment of the present invention, set-top box starts NIT monitoring programmes, then by the monitoring programme to including in current NIT Content is parsed, to obtain NIT version numbers, the content in current NIT in addition to including NIT version numbers, further include frequency point information, Logical channel numbers.
In the embodiment of the present invention, the content in current NIT, which changes, can cause the variation of NIT versions, such as current NIT Version number be 10, when the logical channel numbers that NIT includes are changed, then the version number of current NIT also changes therewith Become, 11 may be become.
S102, set-top box obtain history frequency point number and the history NIT version numbers prestored in the database.
In the embodiment of the present invention, set-top box is gone through what is parsed when one parsing NIT (history NIT) before monitoring programme Content in history NIT is preserved into database, and is counted in frequency point information while the frequency point information in parsing history NIT Frequency points, and the frequency points are saved in database together.Set-top box obtains the history prestored in the database Frequency point number as parses the frequency points counted when the frequency point information in history NIT；Set-top box acquisition is stored in advance in data History NIT version numbers in library, the NIT version numbers obtained when as parsing history NIT.
S103, set-top box detect the current NIT version numbers and whether history NIT version numbers are consistent.
In the embodiment of the present invention, set-top box detection executes the current NIT version numbers and execution step that step S101 is obtained Whether the history NIT version numbers that S102 is obtained are identical.
For example, when the current NIT version numbers are 10, history NIT version numbers are also 10, then set-top box executes After this step, detection show that Liang Ge version numbers are identical；When the current NIT version numbers be 11, history NIT version numbers Also it is 10, then after set-top box executes this step, detection show that Liang Ge version numbers are different, then continues to execute step S104.
If S104, the current NIT version numbers and history NIT version numbers are inconsistent, the set-top box counts institute The current frequency point number in NIT is stated, and detects the current frequency point number and whether the history frequency point number is consistent.
In the embodiment of the present invention, the current NIT version numbers and the history NIT are obtained when set-top box executes step S103 Version number differs, then set-top box starts to parse the current frequency point information that current NIT includes, and the current frequency point information is to hold It is obtained when row step S101, includes again multiple current frequency points in the current frequency point information, set-top box often parses one and works as Preceding frequency point, then counting is primary, when set-top box parses current frequency points all in the current frequency point information, then stops counting Number, to obtain the current frequency point number in NIT.The detection of the set-top box further current frequency point number and execution step S102 When obtained history frequency point number it is whether equal.
For example, it is 10 that the frequency points in the frequency point information that NIT includes once are counted before set-top box, i.e. history frequency Points are 10, which is preserved to database, and set-top box counts a frequency point in the frequency point information that current NIT includes Number is 10, i.e., current frequency point number is 10, is detected after executing this step and show that two values are equal；It is primary before set-top box Frequency points in the frequency point information that statistics NIT includes are 10, i.e. history frequency point number is 10, which is preserved to number According to library, it is 12 that set-top box, which counts the frequency points in the frequency point information that current NIT includes, i.e., current frequency point number is 12, works as execution Detection show that two values are unequal after this step, that is, has frequency point increase, then continue to execute next step S105；Work as machine It is 10 that the frequency points in the frequency point information that NIT includes once are counted before top box, i.e. history frequency point number is 10, by the history frequency point Number is preserved to database, and it is 8 that set-top box, which counts the frequency points in the frequency point information that current NIT includes, i.e., current frequency point number is 8, it is detected after executing this step and show that two values are unequal, that is, had frequency point reduction, then continue to execute next step S105。
Step S105, if the current frequency point number and the history frequency point number are inconsistent, the set-top box output prompt Message, the prompting message is for prompting user's searching programs.
In the embodiment of the present invention, the current frequency point number and the history frequency point number are obtained when set-top box executes step S104 It is unequal, that is, there is frequency point to increase or have frequency point reduction, then the set-top box exports prompting message, and the prompting message is sent To the display screen for the television set being connect with the set-top box, TV programme can be carried out so that user can recognize in time Search.
By implementing method described in Fig. 1, when the NIT of monitoring STB front end, when detecting that the version of NIT changes Afterwards, prompt user carries out program searching immediately, but whether the frequency point number further detected in NIT has a change, only when User's searching programs are just prompted when frequency point number also changes, to allow set-top box to pass through intelligence, efficient front monitoring front-end The variation of NIT selectively prompts user's searching programs, and prompt user unnecessary so as to avoid some, frequent searches Socket purpose responds.
In addition, by implementing the embodiment of the present invention, set-top box is no longer caused by detecting that any information changes in NIT NIT versions, which change, suggests that user carries out program searching, and in the no variation of NIT intermediate frequencies points, other information changes In the case of, set-top box can impact, into one in the information for automatically updating variation from the background to watch program to user Step enhances user experience.
Referring to Fig. 2, Fig. 2 is the flow of the reminding method of another set-top box searching programs disclosed by the embodiments of the present invention Schematic diagram.As shown in Fig. 2, the reminding method of the set-top box searching programs may comprise steps of：
S201, set-top box parse network information table NIT, to obtain the current NIT version numbers that the NIT includes.
In the embodiment of the present invention, the version number of itself is not only contained in NIT, further comprises frequency point information and logical channel Number.
S202, set-top box obtain history frequency point number and the history NIT version numbers prestored in the database.
Content (such as history NIT version numbers, the history in history NIT are not only stored in the embodiment of the present invention, in database Frequency point information and historical logic channel number) and history NIT intermediate-frequeney points a numerical value, be also stored some set-top boxes acquiescence frequency point Information, the frequency point in the frequency point information of the acquiescence is without statistic record in frequency point number.
S203, set-top box detect the current NIT version numbers and whether history NIT version numbers are consistent.
In the embodiment of the present invention, set-top box will execute the obtained current NIT version numbers of step S201 and execute step S202 obtained history NIT version numbers are compared, if current NIT version numbers are identical as old version number, set-top box The history frequency point number that step S202 is got will be executed and be assigned to new variable, the new variable is for preserving working as in NIT Preceding frequency point number, and the initial value of the variable is 0, and the variable assigned value is preserved into database, reason for doing so is that frequencies The variation of points can just promote set-top box to prompt the user with carry out program searching, and the history frequency point number of acquisition is assigned to the variable And preserve to database, lead to prompting search so as to avoid because of frequency points difference；If current NIT version numbers have occurred Variation is differed with history NIT version numbers, then then executes step S204.
If S204, the current NIT version numbers and history NIT version numbers are inconsistent, set-top box includes to the NIT Current frequency point information in current frequency point parsed, the current frequency point information includes multiple current frequency points.
In the embodiment of the present invention, the current NIT version numbers and the history NIT are obtained when set-top box executes step S203 Version number differs, then set-top box further parses current frequency point information in NIT, because including again in the current frequency point information Multiple current frequency points, therefore it is the current frequency point of parsing one by one that set-top box, which parses current frequency point information,.
S205, set-top box count once whenever parsing a current frequency point from the current frequency point information, When the set-top box parses all current frequency points from the current frequency point information, stop counting, to obtain State the current frequency point number in NIT.
In the embodiment of the present invention, set-top box is also worked as in statistics while the current frequency point in parsing current frequency point information The number of preceding frequency point, i.e. set-top box often parse a current frequency point, then count it is primary, when parsing all current frequency points When, stop counting, the numerical value that this set-top box obtains in the module for counting is exactly the number of current NIT intermediate-frequeney points, that is, is worked as Preceding frequency point number.
In the embodiment of the present invention, for set-top box while counting frequency points, there is also following operations：The set-top box is every When parsing a current frequency point from the current frequency point information, by the current frequency point setting flag bit, to obtain To labeled current frequency point, and by the corresponding frequency point attribute information of the labeled current frequency point and it is stored in advance in described What the history frequency point information in database included carries the frequency point attribute letter corresponding to each history frequency point of the flag bit Breath is compared one by one, and the frequency point attribute information includes frequency point mark, symbol rate and modulation system.
For example, set-top box parses a current frequency point from current frequency point information every time, then in current frequency point Front increases a flag bit, and the flag bit is assigned to identical value, and assignment both can be for numerical value (such as：0 or 1 etc.), Can be character (such as：L or F etc.), it can also be that other can play the role of the symbol of mark (such as：$ or * etc.), the present invention is implemented Example is not construed as limiting.The corresponding frequency point category of current frequency point (i.e. labeled current frequency point) with flag bit that set-top box will obtain Property information (including frequency point mark, symbol rate and modulation system) with the frequency point attribute information corresponding to the history frequency point in database It is compared one by one, the frequency point in the history frequency point information that history frequency point here obtains when being set-top box parsing history NIT, together Sample also carries flag bit, when set-top box preserves history frequency point information into database, and first by history frequency point setting one The flag bit of a flag bit, the flag bit and current frequency point assigns identical value, then preserves again into database.
In the embodiment of the present invention, set-top box count current frequency points, by each the current frequency point parsed While frequency point attribute information is compared with the frequency point attribute information of history frequency point in database, set-top box is also in parsing NIT Include carries each current logic channel number of different service identifiers Service_ID.
As an alternative embodiment, when set-top box comparison to the labeled corresponding frequency of current frequency point When point attribute information is inconsistent with the frequency point attribute information carried corresponding to each history frequency point of the flag bit, The letter of the history frequency point in the database is then updated according to the corresponding frequency point attribute information of the labeled current frequency point Breath, to obtain updated history frequency point information.In addition, set-top box can stop parsing NIT carrying of including immediately The current logic channel number of Service_ID.
For example, when set-top box parses a current frequency point, and flag bit is set, the labeled current frequency Putting corresponding frequency point attribute information is：Frequency point is identified as 307, symbol rate 6900, modulation system QAM64, by the frequency point attribute The frequency point attribute information of history frequency point in information and date library is compared one by one, first looks for whether having identical frequency point mark Know, is when finding the frequency point attribute information there are one history frequency point：Frequency point is identified as 307, symbol rate 6875, modulation system QAM64 then illustrates that the frequency point attribute information of the labeled current frequency point is sent out compared with the frequency point attribute information of the history frequency point Variation is given birth to, at this point, set-top box can update the history frequency point according to the frequency point attribute information of the labeled current frequency point The symbol rate of history frequency point was both changed to 6900 by frequency point attribute information by 6875.It is each by what is parsed according to aforesaid operations A current frequency point is compared with history frequency point, it is hereby achieved that updated history frequency point information.It is to be noted that：Set-top box Only by the frequency point attribute information of the history frequency point preserved in the frequency point attribute information of current frequency point and database (i.e. in history NIT History frequency point information) compared, without with acquiescence frequency point that is originally giving tacit consent in database and being not provided with flag bit believe Breath is compared.
Again for example, when set-top box parses a current frequency point, and flag bit is set, it is described labeled current The corresponding frequency point attribute information of frequency point is：Frequency point is identified as 307, symbol rate 6900, modulation system QAM64, by the frequency point category The frequency point attribute information of history frequency point in property information and date library is compared one by one, first looks for whether having identical frequency point Mark finds the frequency point for not having frequency point to be identified as 307 in history frequency point after comparing one by one, then illustrates current frequency point information at this time Occur new frequency point compared with history frequency point information, that is, have frequency point increase, then believes the corresponding frequency point attribute of the current frequency point " frequency point is identified as 307, symbol rate 6900, modulation system QAM64 " is ceased to preserve into the history frequency point information in database, with Obtain updated history frequency point information.It is to be noted that：Set-top box only will be in the frequency point attribute information of current frequency point and database The frequency point attribute information (i.e. history frequency point information in history NIT) of the history frequency point of preservation is compared, without with database In originally gave tacit consent to and the acquiescence frequency point information that is not provided with flag bit compared.
As an alternative embodiment, when each described labeled current frequency point pair is arrived in set-top box comparison All there is the frequency point attribute information corresponding to a history frequency point in the database therewith in the frequency point attribute information answered When completely the same, each current logic channel number for carrying different Service_ID that the NIT includes is parsed.
In the embodiment of the present invention, when the corresponding frequency point attribute of the labeled current frequency point of each that set-top box parses When information is all completely the same therewith in the presence of the frequency point attribute information corresponding to a history frequency point in the database, meaning Taste current frequency point information compared with history frequency point information, and both no frequency point increased or decreased, also without frequency point attribute information Change, then set-top box will continue to each current logic channel number for carrying different Service_ID that parsing NIT includes.
In the embodiment of the present invention, the set-top box is whenever parsing a current logic for carrying Service_ID When channel number, compare the current logic channel number and prestore in the database carry the Service_ID Historical logic channel number it is whether consistent；If it is not, then the set-top box updates the data using the current logic channel number The historical logic channel number for carrying the Service_ID in library.
For example, when set-top box parses a current logic channel number, which is 10, and corresponding Service_ID be 156, when current logic channel number and historical logic channel number are compared, first from historical logic frequency Service_ID is found in Taoist monastic name and is 156 historical logic channel number, then compares historical logic channel number and current logic frequency Whether Taoist monastic name is identical, if historical logic channel number is also 10, the two is identical, then set-top box continues to parse next current logic Channel number；If historical logic channel number be 10, it is assumed that be 12, then with identical Service_ID current logic channel number with Historical logic channel number is different, then current logic channel number 10 is replaced historical logic channel number 12 by set-top box, set-top box after The continuous next current logic channel number of parsing, when having parsed all logical channel numbers, then after being updated in database at this time The logical channel numbers for carrying Service_ID.
S206, set-top box detect the current frequency point number and whether the history frequency point number is consistent.
In the embodiment of the present invention, set-top box is obtained the current frequency point number that step S205 is obtained is executed with step S202 is executed History frequency point number be compared, whether equal compare two values.
As an alternative embodiment, comparison is worked as while set-top box counts current frequency points in step S205 On the basis of the frequency point attribute information of preceding frequency point and the frequency point attribute information of history frequency point are different, when the set-top box detects When the current frequency point number is consistent with the history frequency point number, the history frequency point number is preserved again into the database, And history NIT version numbers in the database are updated using the current NIT version numbers；It is mentioned here will be described History frequency point number is preserved again into the database, refer to set-top box when executing step S202 by the history frequency point number of acquisition It is assigned to the variable for preserving current frequency point number in NIT, then again preserves the value in the variable into database.Using institute It refers to preserving current NIT version numbers to number to state the history NIT version numbers that current NIT version numbers update in the database According in library, to substitute, override history NIT version numbers.
And each current logic channel number for carrying Service_ID that the set-top box includes using the NIT Update prestores historical logic channel number in the database.
In the embodiment of the present invention, set-top box count current frequency points, by each the current frequency point parsed While frequency point attribute information is compared with the frequency point attribute information of history frequency point in database, set-top box is also in parsing NIT Include carries each current logic channel number of Service_ID, as long as when set-top box comparison to current frequency point Frequency point attribute information and the frequency point attribute information of history frequency point are all different, then can stop the solution to current logic channel number at once Analysis.When having parsed all current frequency points, and current frequency point number is consistent with history frequency point number, i.e., set-top box will not prompt user to search Rope, then set-top box automatically updating current logic channel number from the background.
If S207, the current frequency point number and the history frequency point number are inconsistent, the set-top box exports prompting message, The prompting message is for prompting user's searching programs.
In the embodiment of the present invention, after the set-top box output prompting message, further include：
The set-top box receives the search instruction for responding the prompting message input, and instructs search section according to described search Mesh；
The set-top box updates the history frequency point number in the database using the current frequency point number, and utilizes The current NIT version numbers update the history NIT version numbers in the database；
The set-top box utilize include the labeled current frequency point the current frequency point information update database in The updated history frequency point information；
And the set-top box is currently patrolled using each of service identifiers Service_ID that carry that the NIT includes It collects channel number and updates the historical logic channel number prestored in the database.
In the embodiment of the present invention, after user carries out program searching according to prompting message, the history that is preserved in database NIT version numbers, history frequency point number, history frequency point information and historical logic channel number can all automatically update again, be updated to work as Preceding NIT version numbers, current frequency point number, current frequency point information and current logic channel number.
By implementing method described in Fig. 2, when the NIT of monitoring STB front end, detecting NIT version numbers first, whether there is or not changes Change, whether there is or not increases and decreases for the frequency points for further detecting in NIT, only when NIT version numbers change and frequency point in NIT When number increases or decreases, set-top box just prompts user to carry out television program search, to allow set-top box to pass through intelligence, height The variation of the front monitoring front-end NIT of effect selectively prompts user's searching programs, unnecessary so as to avoid some, frequent Prompt user's searching programs response.
In addition, by implementing the embodiment of the present invention, set-top box is no longer caused by detecting that any information changes in NIT NIT versions, which change, suggests that user carries out program searching, and in the no variation of NIT intermediate frequencies points, other information changes In the case of, set-top box does not prompt user to scan for, but in the information for automatically updating variation from the background, such as NIT version numbers, frequency Point information and logical channel numbers impact to watch program to user, further enhance user experience.
The following is an embodiment of the apparatus of the present invention, and apparatus of the present invention embodiment is for executing the method for the present invention embodiment one to two The method of realization is illustrated only and is not disclosed with the relevant part of the embodiment of the present invention, particular technique details for convenience of description , please refer to the embodiment of the present invention one and embodiment two.
Referring to Fig. 3, Fig. 3 is a kind of structural schematic diagram of set-top box disclosed by the embodiments of the present invention.Machine top shown in Fig. 3 Box, the reminding method for executing set-top box searching programs disclosed by the embodiments of the present invention.In order to implement the embodiment of the present invention, scheme Set-top box shown in 3 will have the function of receiving digital television program, and one end of set-top box is connected with television set, one end and outside Information source device is connected, and can ensure normally to carry out signal transmission in power supply in this way.As shown in figure 3, the present invention is real Applying a kind of set-top box disclosed in example includes：
Resolution unit 301, for parsing network information table NIT, to obtain the current NIT version numbers that the NIT includes.
In the embodiment of the present invention, this unit 301 starts NIT monitoring programmes, then by the monitoring programme to including in current NIT Content parsed, to obtain NIT version numbers, the content in current NIT in addition to including NIT version numbers, further include frequency point letter Breath, logical channel numbers.
In the embodiment of the present invention, the content in current NIT, which changes, can cause the variation of NIT versions, such as current NIT Version number be 10, when the logical channel numbers that NIT includes are changed, then the version number of current NIT also changes therewith Become, 11 may be become.
Acquiring unit 302, for obtaining the history frequency point number and the history NIT version numbers that prestore in the database.
In the embodiment of the present invention, what this unit 302 was got is that the above-mentioned resolution unit 301 that is preserved in database is previous Content when secondary parsing NIT (history NIT) in the history NIT that is parsed, frequency point information in parsing history NIT it is same Frequency points in Shi Tongji frequency point informations.This unit 302 obtains the history frequency point number prestored in the database, as solves Analyse the frequency points counted when the frequency point information in history NIT；This unit obtains the history NIT prestored in the database Version number, the NIT version numbers obtained when as parsing history NIT.
Detection unit 303, it is whether consistent for detecting the current NIT version numbers and history NIT version numbers.
Wherein, this unit 303 detects the current NIT version numbers and above-mentioned acquiring unit that above-mentioned resolution unit 301 is obtained Whether the 302 history NIT version numbers that are obtained are identical.
For example, when the current NIT version numbers are 10, history NIT version numbers are also 10, then this unit 303 Detection show that Liang Ge version numbers are identical；When the current NIT version numbers are 11, history NIT version numbers are also 10, then The detection of this unit 303 show that Liang Ge version numbers are different.
Statistic unit 304 detects the current NIT version numbers and the history NIT for working as above-mentioned detection unit 303 When version number is inconsistent, the current frequency point number in the NIT is counted.
In the embodiment of the present invention, when the detection of above-mentioned detection unit 303 obtains the current NIT version numbers and the history NIT version numbers differ, then this unit 304 obtain that the current NIT parsed includes from above-mentioned resolution unit 301 it is current Frequency point information, and start to parse current frequency point information, the current frequency point information that the current NIT includes is above-mentioned resolution unit It is obtained when the 301 current NIT of parsing, includes again multiple current frequency points in the current frequency point information, this unit 304 often parses One current frequency point then counts once, when this unit 304 parses current frequency points all in the current frequency point information, then Stop counting, to obtain the current frequency point number in NIT.
Above-mentioned detection unit 303 is additionally operable to detect the current frequency point number and whether the history frequency point number is consistent.
Wherein, the current frequency point number is that the statistics of above-mentioned statistic unit 304 show that the history frequency point number is above-mentioned obtains Unit 302 is taken to be got from database.
For example, it is 10 when above-mentioned acquiring unit 302 gets history frequency point number from database, the history frequency point Number is obtained when once counting the frequency points in the frequency point information that NIT (history NIT) includes before above-mentioned statistic unit 304, It is 10 that above-mentioned statistic unit 304, which counts the frequency points in the frequency point information that current NIT includes, i.e., current frequency point number is 10, on It states detection unit 303 and then show that two values are equal by detection；When above-mentioned acquiring unit 302 is got from database History frequency point number is 10, and it is 12 that above-mentioned statistic unit 304, which counts the frequency points in the frequency point information that current NIT includes, that is, is worked as Preceding frequency point number is 12, and above-mentioned detection unit 303 then show that two values are unequal by detection, that is, has frequency point increase；When It is 10 that above-mentioned acquiring unit 302 gets history frequency point number from database, and above-mentioned statistic unit 304 counts current NIT and includes Frequency point information in frequency points be 8, i.e., current frequency point number be 8, above-mentioned detection unit 303 then by detection obtain two numbers Value is unequal, that is, has frequency point reduction.
Output unit 305 detects the current frequency point number and the history frequency point number for working as above-mentioned detection unit 303 When inconsistent, prompting message is exported, the prompting message is for prompting user's searching programs.
Wherein, set-top box real time monitoring front end NIT shown in Fig. 3 is not stood after detecting that the version of NIT changes I.e. prompt user carries out program searching, but whether the frequency point number further detected in NIT has change, only when frequency point number User's searching programs are just prompted when changing, to allow set-top box to pass through intelligence, the variation of efficient front monitoring front-end NIT User's searching programs selectively are prompted, unnecessary so as to avoid some, frequent prompt user searching programs Response.
Further, the set-top box shown in Fig. 3 no longer NIT versions hair caused by detecting that any information changes in NIT Changing suggests that user carries out program searching, in the case where NIT intermediate frequencies points do not change and other information changes, Set-top box can impact to watch program to user, further enhance in the information for automatically updating variation from the background User experience.
Referring to Fig. 4, Fig. 4 is the structural schematic diagram of another set-top box disclosed by the embodiments of the present invention, for realizing this The reminding method of set-top box searching programs disclosed in inventive embodiments.As shown in figure 4, a kind of machine top disclosed by the embodiments of the present invention Box includes：
Resolution unit 301, for parsing network information table NIT, to obtain the current NIT version numbers that the NIT includes.
Wherein, the version number of itself is not only contained in NIT, further comprises frequency point information and logical channel numbers.
Acquiring unit 302, for obtaining the history frequency point number and the history NIT version numbers that prestore in the database.
Content (such as history NIT version numbers, the history in history NIT are not only stored in the embodiment of the present invention, in database Frequency point information and historical logic channel number) and history NIT intermediate-frequeney points a numerical value, be also stored some set-top boxes acquiescence frequency point Information, the frequency point in the frequency point information of the acquiescence is without statistic record in frequency point number.
Detection unit 303, it is whether consistent for detecting the current NIT version numbers and history NIT version numbers.
In the embodiment of the present invention, current NIT version numbers that this unit 303 parses above-mentioned resolution unit 301 with it is upper The history NIT version numbers that acquiring unit 302 is got are stated to be compared, if current NIT version numbers are identical as old version number, Then the history frequency point number got is assigned to new variable by above-mentioned acquiring unit 302, and the new variable is for preserving in NIT Current frequency point number, and the initial value of the variable is 0, and the reason of the variable assigned value is preserved into database, is done so It can just promote set-top box to prompt the user with carry out program searching in the variation of frequency point number, the history frequency point number of acquisition is assigned to this It variable and preserves to database, leads to prompting search so as to avoid because of frequency points difference.
Statistic unit 304 detects the current NIT version numbers and the history NIT for working as above-mentioned detection unit 303 When version number is inconsistent, the current frequency point number in the NIT is counted.Wherein, this unit 304 may include 306 He of parsing module Counting module 307.
Parsing module 306 detects the current NIT version numbers and the history NIT for working as above-mentioned detection unit 303 When version number is inconsistent, the current frequency point in the current frequency point information for including to the NIT parses, the current frequency point letter Breath includes multiple current frequency points.
Wherein, this module 306 is in the current frequency point in parsing current frequency point information, while also including in parsing NIT The each current logic channel number for carrying different service identifiers Service_ID.
Counting module 307 is parsed whenever from the current frequency point information described in one for above-mentioned parsing module 306 When current frequency point, count it is primary, when above-mentioned parsing module 306 parsed from the current frequency point information it is all described current When frequency point, stop counting, to obtain the current frequency point number in the NIT.
Comparison unit 308 is parsed whenever from the current frequency point information described in one for above-mentioned parsing module 306 When current frequency point, the current frequency point setting flag bit to obtain labeled current frequency point, and described labeled is worked as The corresponding frequency point attribute information of preceding frequency point and prestore carrying that history frequency point information in the database includes It states the frequency point attribute information corresponding to each history frequency point of flag bit to be compared one by one, the frequency point attribute information includes frequency Point identification, symbol rate and modulation system.
For example, above-mentioned parsing module 306 parses a current frequency point from current frequency point information every time, then is working as Increase a flag bit before preceding frequency point, and the flag bit is assigned to identical value, assignment both can be for numerical value (such as：0 or 1 etc.), can also be character (such as：L or F etc.), it can also be that other can play the role of the symbol of mark (such as：$ or * etc.), this hair Bright embodiment is not construed as limiting.This unit 308 is right by the obtained current frequency point (i.e. labeled current frequency point) with flag bit Frequency point attribute information (including frequency point mark, symbol rate and modulation system) and the frequency corresponding to the history frequency point in database answered Point attribute information is compared one by one, and history frequency point here is the frequency point in the history frequency point information in history NIT, equally Flag bit is carried, the flag bit of the flag bit and current frequency point assigns identical value.
Updating unit 309, for arriving the labeled corresponding frequency point of current frequency point when the comparison of above-mentioned comparison unit 308 When attribute information is inconsistent with the frequency point attribute information carried corresponding to each history frequency point of the flag bit, then The history frequency point information in the database is updated according to the corresponding frequency point attribute information of the labeled current frequency point, To obtain updated history frequency point information.
Wherein, when above-mentioned comparison unit 308 comparison to the corresponding frequency point attribute information of the labeled current frequency point with When the frequency point attribute information carried corresponding to each history frequency point of the flag bit is inconsistent, this unit 309 exists While more new historical frequency point information, what the meeting of above-mentioned parsing module 306 stopping parsing immediately NIT included carries Service_ The current logic channel number of ID.
For example, when above-mentioned parsing module 306 parses a current frequency point, and flag bit is set, the label The corresponding frequency point attribute information of current frequency point crossed is：Frequency point is identified as 307, symbol rate 6900, modulation system QAM64, on Comparison unit 308 is stated to be compared the frequency point attribute information of the frequency point attribute information and the history frequency point in database one by one, It first looks for whether thering is identical frequency point to identify, is when finding the frequency point attribute information there are one history frequency point：Frequency point identifies For 307, symbol rate 6875, modulation system QAM64, then illustrate that the frequency point attribute information of the labeled current frequency point is gone through with this The frequency point attribute information of history frequency point is compared to being changed, at this point, this unit 309 can be according to the frequency of the labeled current frequency point Attribute information is put to update the frequency point attribute information of the history frequency point, the symbol rate of history frequency point was both changed to 6900 by 6875. Each the current frequency point parsed is compared with history frequency point according to aforesaid operations, it is hereby achieved that updated History frequency point information.It is to be noted that：Above-mentioned comparison unit 308 only preserves the frequency point attribute information of current frequency point with database The frequency point attribute information (i.e. history frequency point information in history NIT) of history frequency point compared, without with database Central Plains Acquiescence frequency point information that is first giving tacit consent to and being not provided with flag bit is compared.
Again for example, when above-mentioned parsing module 306 parses a current frequency point, and flag bit is set, the mark The corresponding frequency point attribute information of current frequency point recorded a demerit is：Frequency point is identified as 307, symbol rate 6900, modulation system QAM64, It is right one by one that above-mentioned comparison unit 308 carries out the frequency point attribute information of the frequency point attribute information and the history frequency point in database Than first looking for whether thering is identical frequency point to identify, finding there is no frequency point to be identified as 307 in history frequency point after comparing one by one Frequency point then illustrates that new frequency point occurs compared with history frequency point information in current frequency point information at this time, that is, has frequency point increase, then originally By the corresponding frequency point attribute information of the current frequency point, " frequency point is identified as 307, symbol rate 6900, modulation system to unit 309 QAM64 " is preserved into the history frequency point information in database, to obtain updated history frequency point information.It is to be noted that：It is above-mentioned Comparison unit 308 is only by the frequency point attribute information of the history frequency point preserved in the frequency point attribute information of current frequency point and database (i.e. history frequency point information in history NIT) is compared, without with it is originally giving tacit consent in database and be not provided with flag bit Acquiescence frequency point information compared.
Above-mentioned detection unit 303 is additionally operable to detect the current frequency point number and whether the history frequency point number is consistent；
Output unit 305 detects the current frequency point number and the history frequency point number for working as above-mentioned detection unit 303 When inconsistent, prompting message is exported, the prompting message is for prompting user's searching programs.
Receiving unit 310, for receiving the search instruction for responding the prompting message input.
Search unit 311, the described search for being received according to above-mentioned receiving unit 310 instruct searching programs.
Above-mentioned updating unit 309 is additionally operable to after above-mentioned search unit 311 has searched for program, utilize the current frequency point Number updates the history frequency point numbers in the databases, using the current NIT version numbers update in the database described in go through History NIT version numbers, updated in the database using the current frequency point information including the labeled current frequency point described in Updated history frequency point information, and carry each current of service identifiers Service_ID using what the NIT included Logical channel numbers update prestores historical logic channel number in the database.
In one embodiment, above-mentioned updating unit 309 is additionally operable to detect the current frequency when above-mentioned detection unit 303 When points are consistent with the history frequency point number, the history frequency point number is preserved again into the database, is worked as using described Preceding NIT version numbers update the history NIT version numbers in the database, and are carried using what the NIT included Each current logic channel number update of Service_ID prestores historical logic channel number in the database.
In one embodiment, above-mentioned parsing module 306 is additionally operable to when the comparison of above-mentioned comparison unit 308 is to described in each The corresponding frequency point attribute information of labeled current frequency point all exists corresponding to a history frequency point in the database Frequency point attribute information it is completely the same therewith when, parse each current logic for carrying Service_ID that the NIT includes Channel number.
In the embodiment of the present invention, when the labeled current frequency point of each that above-mentioned parsing module 306 parses corresponds to The frequency point attribute information that all exists corresponding to history frequency point in the database of frequency point attribute information it is complete therewith When complete consistent, it is meant that current frequency point information is compared with history frequency point information, and both no frequency point increased or decreased, also without frequency point The change of attribute information, then above-mentioned parsing module 306 will continue to parsing NIT include carry each of different Service_ID Current logic channel number.
Above-mentioned comparison unit 308 is additionally operable to above-mentioned parsing module 306 whenever parsing one and carries Service_ID's When the current logic channel number, compares the current logic channel number and prestore carrying in the database Whether the historical logic channel number for stating Service_ID is consistent；
Above-mentioned updating unit 309, be additionally operable to when above-mentioned comparison unit 308 comparison to the current logic channel number in advance When the storage historical logic channel number for carrying the Service_ID in the database is inconsistent, using described current Logical channel numbers update the historical logic channel number for carrying the Service_ID in the database.
For example, when above-mentioned parsing module 306 parses a current logic channel number, it is assumed that the current logical channel Number it is 10, and corresponding Service_ID is 156, above-mentioned comparison unit 308 is by current logic channel number and historical logic channel When number being compared, the historical logic channel number that Service_ID is 156 is found from historical logic channel number first, then right Whether more identical as current logic channel number than historical logic channel number, if historical logic channel number is also 10, the two is identical, then Above-mentioned parsing module 306 continues to parse next current logic channel number；If historical logic channel number is not 10, it is assumed that it is 12, Then the current logic channel number with identical Service_ID is different from historical logic channel number, then above-mentioned updating unit 309 will Current logic channel number 10 replaces historical logic channel number 12, and above-mentioned parsing module 306 continues to parse next current logic Channel number then obtains in database when having parsed all logical channel numbers and updated carries Service_ID's at this time Logical channel numbers.
Wherein, when set-top box real time monitoring front end NIT shown in Fig. 4, detection NIT version numbers have unchanged first, and into One step detects the frequency points in NIT, and whether there is or not increases and decreases, only when NIT version numbers change and frequency points in NIT have increasing When adding deduct few, set-top box just prompts user to carry out television program search, to allow set-top box to pass through intelligence, efficient prison The variation of control front end NIT selectively prompts user's searching programs, prompt unnecessary so as to avoid some, frequent The response of user's searching programs.
In addition, the set-top box shown in Fig. 4 no longer NIT versions caused by detecting that any information changes in NIT become Change suggest that user carry out program searching, NIT intermediate frequencies count without variation and other information change in the case of, machine top Box does not prompt user to scan for, but in the information for automatically updating variation from the background, such as NIT version numbers, frequency point information and patrols Channel number is collected, be impacted to which program will not be watched to user, further enhance user experience.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment each method, being can It is completed with instructing relevant hardware by computer program, which can be stored in a computer read/write memory medium In, which can be magnetic disc, CD, read-only memory (Read-OnlyMemory, ROM) or random access memory Device (Random Access Memory, abbreviation RAM) etc..
The reminding method to set-top box searching programs disclosed by the embodiments of the present invention and relevant device have carried out in detail above It introduces, principle and implementation of the present invention are described for specific case used herein, the explanation of above example It is merely used to help understand the method and its core concept of the present invention；Meanwhile for those of ordinary skill in the art, according to this The thought of invention, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification is not answered It is interpreted as limitation of the present invention.

Claims (12)

1. a kind of reminding method of set-top box searching programs, which is characterized in that including：
Set top box through network information table NIT monitoring programmes parse NIT, to obtain the current NIT version numbers that the NIT includes；
The set-top box obtains history frequency point number and the history NIT version numbers prestored in the database；
The set-top box detects the current NIT version numbers and whether history NIT version numbers are consistent；
If the current NIT version numbers and history NIT version numbers are inconsistent, the set-top box counts in the NIT Current frequency point number, and detect the current frequency point number and whether the history frequency point number is consistent；
If the current frequency point number and the history frequency point number are inconsistent, the set-top box exports prompting message, the prompt Message is for prompting user's searching programs.
2. according to the method described in claim 1, it is characterized in that, the set-top box counts the current frequency point number in the NIT, Including：
Current frequency point in the current frequency point information that the set-top box includes to the NIT parses, the current frequency point letter Breath includes multiple current frequency points；
The set-top box counts once whenever parsing a current frequency point from the current frequency point information, works as institute When stating set-top box and parsing all current frequency points from the current frequency point information, stop counting, to obtain the NIT In current frequency point number.
3. according to the method described in claim 2, it is characterized in that, the method further includes：
The set-top box from the current frequency point information whenever parsing a current frequency point, by the current frequency point Flag bit is set, to obtain labeled current frequency point, and by the corresponding frequency point attribute information of the labeled current frequency point With each history frequency point institute for carrying the flag bit for prestoring history frequency point information in the database and including Corresponding frequency point attribute information is compared one by one, and the frequency point attribute information includes frequency point mark, symbol rate and modulation system；
When set-top box comparison to the corresponding frequency point attribute information of the labeled current frequency point with it is described carry it is described When frequency point attribute information corresponding to each history frequency point of flag bit is inconsistent, then according to the labeled current frequency point Corresponding frequency point attribute information updates the history frequency point information in the database, is believed with obtaining updated history frequency point Breath.
4. according to the method described in claim 3, it is characterized in that, the method further includes：
The set-top box receives the search instruction for responding the prompting message input, and instructs searching programs according to described search；
The set-top box updates the history frequency point number in the database using the current frequency point number, and described in utilization Current NIT version numbers update the history NIT version numbers in the database；
It includes that the current frequency point information of the labeled current frequency point updates the institute in the database that the set-top box, which utilizes, State updated history frequency point information；
And each current logic frequency for carrying service identifiers Service_ID that the set-top box includes using the NIT Taoist monastic name update prestores historical logic channel number in the database.
5. according to the method described in claim 3, it is characterized in that, the method further includes：
When the set-top box detects that the current frequency point number is consistent with the history frequency point number, by the history frequency point number weight It is new to preserve into the database, and update using the current NIT version numbers described history NIT editions in the database This number；
The set-top box is deposited in advance using each current logic channel number update for carrying Service_ID that the NIT includes The historical logic channel number of storage in the database.
6. according to the method described in claim 3, it is characterized in that, the method further includes：
When set-top box comparison to the corresponding frequency point attribute information of each described labeled current frequency point in the data When all completely the same therewith in the presence of the frequency point attribute information corresponding to a history frequency point in library, parsing the NIT includes The each current logic channel number for carrying Service_ID；
The set-top box is worked as whenever parsing a current logic channel number for carrying Service_ID described in comparison Preceding logical channel numbers are with the historical logic channel number for carrying the Service_ID for prestoring in the database It is no consistent；
If it is not, then the set-top box using the current logic channel number update in the database carry it is described The historical logic channel number of Service_ID.
7. a kind of set-top box, which is characterized in that including：
Resolution unit, for parsing NIT by network information table NIT monitoring programmes, to obtain the current NIT that the NIT includes Version number；
Acquiring unit, for obtaining the history frequency point number and the history NIT version numbers that prestore in the database；
Detection unit, it is whether consistent for detecting the current NIT version numbers and history NIT version numbers；
Statistic unit detects that the current NIT version numbers differ with history NIT version numbers for working as the detection unit When cause, the current frequency point number in the NIT is counted；
The detection unit is additionally operable to detect the current frequency point number and whether the history frequency point number is consistent；
Output unit, for when the detection unit detects that the current frequency point number and the history frequency point number are inconsistent, Prompting message is exported, the prompting message is for prompting user's searching programs.
8. set-top box according to claim 7, which is characterized in that the statistic unit includes：
Parsing module detects that the current NIT version numbers differ with history NIT version numbers for working as the detection unit When cause, the current frequency point in the current frequency point information for including to the NIT parses, and the current frequency point information includes multiple Current frequency point；
Counting module, for the parsing module whenever parsing a current frequency point from the current frequency point information When, it counts once, when the parsing module parses all current frequency points from the current frequency point information, stops It counts, to obtain the current frequency point number in the NIT.
9. set-top box according to claim 8, which is characterized in that the set-top box further includes：
Comparison unit, for the parsing module whenever parsing a current frequency point from the current frequency point information When, by the current frequency point setting flag bit, to obtain labeled current frequency point, and by the labeled current frequency point pair The frequency point attribute information answered and prestore that history frequency point information in the database includes carry the flag bit Each history frequency point corresponding to frequency point attribute information compared one by one, the frequency point attribute information include frequency point mark, Symbol rate and modulation system；
Updating unit, for when the comparison unit comparison to the corresponding frequency point attribute information of the labeled current frequency point with When the frequency point attribute information carried corresponding to each history frequency point of the flag bit is inconsistent, then according to the mark The corresponding frequency point attribute information of current frequency point recorded a demerit updates the history frequency point information in the database, to be updated History frequency point information afterwards.
10. set-top box according to claim 9, which is characterized in that the set-top box further includes：
Receiving unit, for receiving the search instruction for responding the prompting message input；
Search unit, the described search for being received according to the receiving unit instruct searching programs；
The updating unit is additionally operable to update the history frequency point number in the database, Yi Jili using the current frequency point number The history NIT version numbers in the database are updated with the current NIT version numbers；
The updating unit is additionally operable to utilize the current frequency point information update data for including the labeled current frequency point The updated history frequency point information in library；
The updating unit is additionally operable to currently patrol using each of service identifiers Service_ID that carry that the NIT includes It collects channel number and updates the historical logic channel number prestored in the database.
11. set-top box according to claim 9, which is characterized in that
The updating unit is additionally operable to detect that the current frequency point number is consistent with the history frequency point number when the detection unit When, the history frequency point number is preserved again into the database, and the number is updated using the current NIT version numbers According to the history NIT version numbers in library；
The updating unit is additionally operable to each current logic channel number for carrying Service_ID for including using the NIT Update prestores historical logic channel number in the database.
12. set-top box according to claim 9, which is characterized in that
The parsing module is additionally operable to arrive each described labeled corresponding frequency of current frequency point when comparison unit comparison All there is the frequency point attribute information corresponding to history frequency point therewith complete one in the database in point attribute information When cause, each current logic channel number for carrying Service_ID that the NIT includes is parsed；
The comparison unit is additionally operable to the parsing module and currently patrols whenever parsing one and carry the described of Service_ID When volume channel number, compare the current logic channel number and prestore in the database carry the Service_ Whether the historical logic channel number of ID is consistent；
The updating unit is additionally operable to when comparison unit comparison to the current logic channel number and is stored in advance in described When the historical logic channel number for carrying the Service_ID in database is inconsistent, the current logic channel number is utilized Update the historical logic channel number for carrying the Service_ID in the database.
CN201410453576.3A 2014-09-05 2014-09-05 A kind of reminding method and relevant device of set-top box searching programs Active CN104301785B (en)

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CN105657415B (en) * 2016-01-18 2018-07-03 深圳创维数字技术有限公司 A kind of set-top box automatic testing method and terminal
CN105959779A (en) * 2016-06-16 2016-09-21 珠海迈科智能科技股份有限公司 Method and device for updating satellite frequency points in set top box
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101600059A (en) * 2008-06-06 2009-12-09 乐金电子(中国)研究开发中心有限公司 The fast automatic update method and the device of digital television program
CN101742059A (en) * 2008-11-21 2010-06-16 康佳集团股份有限公司 Method for managing program receiving parameters of terminal device by using network information table
CN102413366A (en) * 2011-12-02 2012-04-11 深圳Tcl新技术有限公司 Method and device for searching channels in digital television
CN102790912A (en) * 2012-08-17 2012-11-21 广东省广播电视网络股份有限公司 Channel information and menu information updating method of set-top box

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101600059A (en) * 2008-06-06 2009-12-09 乐金电子(中国)研究开发中心有限公司 The fast automatic update method and the device of digital television program
CN101742059A (en) * 2008-11-21 2010-06-16 康佳集团股份有限公司 Method for managing program receiving parameters of terminal device by using network information table
CN102413366A (en) * 2011-12-02 2012-04-11 深圳Tcl新技术有限公司 Method and device for searching channels in digital television
CN102790912A (en) * 2012-08-17 2012-11-21 广东省广播电视网络股份有限公司 Channel information and menu information updating method of set-top box

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