CN105791956A - Method for customizing and querying historical electronic program guide information of digital television receiver - Google Patents
Method for customizing and querying historical electronic program guide information of digital television receiver Download PDFInfo
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- CN105791956A CN105791956A CN201511015460.2A CN201511015460A CN105791956A CN 105791956 A CN105791956 A CN 105791956A CN 201511015460 A CN201511015460 A CN 201511015460A CN 105791956 A CN105791956 A CN 105791956A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims description 20
- 230000000052 comparative effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000004044 response Effects 0.000 abstract description 3
- 239000012634 fragment Substances 0.000 description 4
- 230000003442 weekly effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000003203 everyday effect Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
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Classifications
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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
- H04N21/43—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
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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
- H04N21/43—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
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
- H04N21/4353—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream involving decryption of additional data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
- H04N21/43853—Multiplex stream processing, e.g. multiplex stream decrypting involving multiplex stream decryption
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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
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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
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/482—End-user interface for program selection
- H04N21/4826—End-user interface for program selection using recommendation lists, e.g. of programs or channels sorted out according to their score
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Theoretical Computer Science (AREA)
- Software Systems (AREA)
- Human Computer Interaction (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a method for customizing and querying historical electronic program guide information of a digital television receiver. The method comprises: a step of reading and decoding the latest electronic program guide information data from digital television transport stream in real time according to a preset mode; a step of comparing the obtained latest electronic program guide information data with the corresponding electronic program guide information data stored in a memory that is used for storing the historical electronic program guide information to determine storage; and a step of accepting the query in the set mode, and querying the electronic program guide information data of a specified condition from the memory. According to the method disclosed by the invention, effective information in the digital television transport stream is read and is stored in a local memory for a long time, so as to avoid a user repeatedly decoding the digital television transport stream and directly query the previous, the current and the future digital television guide information, and thus the method has the advantages of being simple to realize, small in system burden, timely in response and low in production cost.
Description
Technical field
The present invention relates to digital TV Broadcasting Techniques field, particularly relate to can customizing and the method for query history electronic program guide information of a kind of DTV receiver.
Background technology
DTV is a system end to end processing signal from programme acquisition, program making, program transmission until user side all in a digital manner, based on broadcast type and " interactive mode " DTV of DVB technical standard, adopt advanced user management technique the quality of programme content and quantity can be made perfection and bring more program to select and better program quality effect for user.Digital television system can transmit multiple business, as liquid crystal-spliced in high-definition television (being abbreviated as " HDTV " or " high definition "), standard definition television (being abbreviated as " SDTV " or " SD "), interactive TV, BSV and data service etc..Compared with simulated television, DTV has the advantages that picture quality height, program capacity big (being more than 10 times of analog television transmission passage program capacity) and sound accompaniment are effective.DTV is the product after television digitization and networking, and relative to traditional simulated television, it can transmit simultaneously and receive multi-channel video signal and other digital informations, stores so that spectators call at any time with information digitalization in season.
On the one hand; existing TV is by the data available in real-time decoding digital television program transmission stream; realize current time and later special time period electronic program guide information; digital television broadcasting would generally provide the electronic program guide information risen the same day and in following 7 days; but, client cannot inquire about the historical electronic program guide information before current time.
On the other hand, it is limited to digital television decoder and needs the data available in real-time decoding current digital television transmission stream, it is desirable to have certain decoding time, it is impossible to demonstrate the electronic program guide information of current channel immediately in real time.
Summary of the invention
It is an object of the invention to overcome the deficiency of prior art, can customizing and the method for query history electronic program guide information of a kind of DTV receiver is provided, by read digital television program transmission stream in specific effective information and by it longer-term storage in local memory, can avoid user that digital TV transmission stream is decoded repeatedly, to realize, direct real-time query is passing, currently and from now on DTV guide information, have realize simple and easy, system burden is little, response is timely, the feature that production cost is low.
The technical solution adopted for the present invention to solve the technical problems is: can customizing and the method for query history electronic program guide information of a kind of DTV receiver, including:
From digital TV transmission stream, read and decode the step of up-to-date electronic program guide information data in real time according to preset pattern；This electronic program guide information includes PSI information and SI information；
The up-to-date electronic program guide information data obtained are deposited, as corresponding in the memorizer storing historical electronic program guide information, the step that electronic program guide information compares with setting, when comparative result is identical, then do not do storage to process, otherwise, up-to-date electronic program guide information data preserved or update in described memorizer；
Accept the inquiry of setting pattern, the electronic program guide information of specified requirements is inquired about from described memorizer, when being absent from the electronic program guide information meeting search condition, return the display interface of original DTV receiver, otherwise, the electronic program guide information meeting search condition obtained is shown in the display interface of DTV receiver.
The described step reading and decoding up-to-date electronic program guide information data according to preset pattern from digital TV transmission stream in real time includes the pattern of the historical electronic program guide information of a preset DTV receiver that can call for user at any time in DTV receiver and arranges interface, this interface includes scanning and storage or updates the selection of time hurdle of electronic program guide information and object choice hurdle, in order to the processor of DTV receiver carries out the scanning of electronic program guide information and storage or renewal according to the time set and object.
Described object choice hurdle includes the some option hurdle of all channels and can input the channel input field of specified channel information, so that after user carries out the clicking or input of correspondence, it is possible to realize the scanning of the electronic program guide information of all-channel or specified channel and storage or renewal.
Described selection of time hurdle include multiple time point option hurdle and can input time information time input field, with when the time set arrives, the processor of DTV receiver starts the scanning of electronic program guide information and storage or renewal.
Described time point option hurdle include start shooting time, shutdown time and specify time point some option.
Further, described pattern arranges and also includes time period selectionbar in interface, when in described memorizer, the historical electronic program guide information of storage exceeds the set time period, extraneous for time period historical electronic program guide information is deleted by the processor of DTV receiver from described memorizer.
The inquiry of described acceptance setting pattern is the query interface of the historical electronic program guide information of a preset DTV receiver that can call for user at any time in DTV receiver, carry out the input of querying condition for user, the historical electronic program guide information meeting search condition is then shown in the display interface of DTV receiver by the processor of DTV receiver.
Can customizing and the method for query history electronic program guide information of a kind of DTV receiver of the present invention, can be instant according to customer demand or when starting shooting or when shutting down every time every time, or every day, weekly special time inquiry all-channel or the PSI information table of specific channel digital television transmission stream and SI information table (containing BAT, SDT, EIT, RST, TDT, TOT, ST etc.) store it in local storage.And can according to the natural law of preservation historical electronic program guide required for client, regularly (at least weekly) again the electronic program guides of all-channel or specific channel is re-searched for, decode and newly-increased electronic program guide data is added in memorizer, delete the data message preserving natural law beyond customer demand simultaneously.User is in routine use, it is not necessary to real-time decoding from digital TV transmission stream again, it is possible to by directly reading locally stored wherein institute's information, show in real time.
Compared with prior art, the invention has the beneficial effects as follows:
1, the present invention by read digital television program transmission stream in specific effective information and by it longer-term storage in local memory, can avoiding user that digital TV transmission stream is decoded repeatedly, to realize, direct real-time query is passing, currently and from now on DTV guide information.Simultaneously can according to the customization requirement of client, real-time update, regular update, all channels, specific channel, special time period electronic program guides content search.The method have realize simple and easy, system burden is little, response is timely, the feature that production cost is low.
2, user is in routine use, it is not necessary to real-time decoding from digital TV transmission stream again, it is possible to by directly reading locally stored wherein institute's information, show in real time.
Below in conjunction with embodiment, the present invention is described in further detail；But a kind of DTV receiver of the present invention can customize and the method for query history electronic program guide information is not limited to embodiment.
Detailed description of the invention
Embodiment,
Can customizing and the method for query history electronic program guide information of a kind of DTV receiver of the present invention, including:
From digital TV transmission stream, read and decode the step of up-to-date electronic program guide information data in real time according to preset pattern；This electronic program guide information includes PSI information and SI information；
The up-to-date electronic program guide information data obtained are deposited, as corresponding in the memorizer storing historical electronic program guide information, the step that electronic program guide information compares with setting, when comparative result is identical, then do not do storage to process, otherwise, up-to-date electronic program guide information data preserved or update in described memorizer；
Accept the inquiry of setting pattern, the electronic program guide information of specified requirements is inquired about from described memorizer, when being absent from the electronic program guide information meeting search condition, return the display interface of original DTV receiver, otherwise, the electronic program guide information meeting search condition obtained is shown in the display interface of DTV receiver.
The described step reading and decoding up-to-date electronic program guide information data according to preset pattern from digital TV transmission stream in real time includes the pattern of the historical electronic program guide information of a preset DTV receiver that can call for user at any time in DTV receiver and arranges interface, this interface includes scanning and storage or updates the selection of time hurdle of electronic program guide information and object choice hurdle, in order to the processor of DTV receiver carries out the scanning of electronic program guide information and storage or renewal according to the time set and object.
Described object choice hurdle includes the some option hurdle of all channels and can input the channel input field of specified channel information, so that after user carries out the clicking or input of correspondence, it is possible to realize the scanning of the electronic program guide information of all-channel or specified channel and storage or renewal.Such as specified channel can be all list the channel of favorite channel list in, be defined as all channels etc. of movie channel.
Described selection of time hurdle include multiple time point option hurdle and can input time information time input field, with when the time set arrives, the processor of DTV receiver starts the scanning of electronic program guide information and storage or renewal.
Described time point option hurdle includes in real time, when starting shooting, shutdown time and specify the some option of time point (such as 1 point, 12 points, 23 etc.).
User can select in real time, and system is namely according to channels all in current television channel list or specified channel, and channel scanning reads up-to-date electronic program guide data one by one；Can also specify when each television startup according to client, shutdown time, or all channel specified channels in the time of appointment (such as 1 point, 12 points, 23 etc.) channel scanning list, channel scanning reads up-to-date electronic program guide data one by one.
Further, described pattern arranges and also includes time period selectionbar in interface, when the historical electronic program guide information stored in described memorizer exceeds the set time period (in such as 14 days, in 1 month, 3 months etc.), extraneous for time period historical electronic program guide information is deleted by the processor of DTV receiver from described memorizer.
The inquiry of described acceptance setting pattern is the query interface of the historical electronic program guide information of a preset DTV receiver that can call for user at any time in DTV receiver, carry out the input of querying condition for user, the historical electronic program guide information meeting search condition is then shown in the display interface of DTV receiver by the processor of DTV receiver.
PSI (ProgramSpecificInformation Program Specific Information) includes four table: PAT (Program Association Table), CAT (CAT Conditional Access Table), PMT (Program Map Table), NIT (network information table).
SI (ServiceInformation business information) includes nine table: SDT (SDT Service Description Table), EIT (Event Information Table), TDT (TDT Time and Date Table), TOT (TOT Time Offset Table), BAT (BAT bouquet association table), RST (Running Status Table), ST (filling table), SIT (selection information table), DIT (intermittent information table).
In order to DTV finds the code stream of needs, identify different business information, must be added to some guidance informations in TS flows, for this, in MPEG-2, special definition PSI information (Program Specific Information), its effect is to carry from one some TS stream of multiple program to be correctly found specific program.PSI data provides and allows to the information that receiver automatically configures, for the different program streams in multiplex stream is demultiplexed and decoded.
PSI information is made up of Program Association Table PAT, CAT Conditional Access Table CAT, Program Map Table PMT and network information table NIT.These tables can be inserted in TS stream.PSI information is to the single TS description flowed, and it is the guidance information of TS stream；PSI information specifies how that carrying transmitting stream of multiple program from one finds the program specified.
Program Association Table PAT is used to be associated program numbers and Program Map Table PID, is the beginning obtaining data.The meaning of Program Association Table PAT is in that, it describes to contain which PID in current TS stream；Only according to the PID obtained, user just can find out other tables (such as pmt table) and information thereof in this, as authority.So PAT is the entrance of Digital TV Receiving, it is that it obtains the beginning of data；Ensure that a TS stream can be received normally, then at least to have a complete effective PAT.
Program Map Table PMT is used to specify the PID of one or more program.The meaning of Program Map Table PMT is in that, which gives the mapping between program number and this program element of composition；It is to say, PMT is the bridge connecting program number with program element.One TV programme has included at least video and voice data, and the video/audio of each program is the transmission in TS flows of the form with bag；Thus, TS stream contains video and the packets of audio data of multiple program.Want to filter out video and the audio frequency of one of them program in a TS stream, then it is to be appreciated that the identification number PID of video and audio frequency in this program.The effect of pmt table is that, it provides the PID of each program video, audio frequency (or other) packet.
CAT Conditional Access Table CAT is used to be associated one or more special EMM stream respectively with unique PID.
Network information table NIT is used to describe whole network, such as information such as how many TS streams, frequency and modulation systems.
Hereinafter it is then the implication of nine tables included by SI business information:
SDT Service Description Table---comprise business datum (such as Business Name, initial time, persistent period etc.)；
The information such as BAT bouquet association table---the title and the service lists thereof that provide bouquet；
Event Information Table---comprise event or program related data, be the main table generating EPG；
Running Status Table---to the state (operation/inoperative) of outgoing event；
TDT Time and Date Table---provide current event and date relevant information, update frequently；
TOT Time Offset Table---give the information on current time date and local time offset；
Fill table---be used for making existing section invalid, as transmitted the border of system at one；
Select information table---only in code stream fragment, such as a segment encode stream of record, comprise the place describing this code stream fragment business information section；
Intermittent information table---only for code stream fragment, in a segment encode stream of record, it will be inserted into the place that code stream fragment business information is interrupted.
Can customizing and the method for query history electronic program guide information of a kind of DTV receiver of the present invention, can be instant according to customer demand or when starting shooting or when shutting down every time every time, or every day, weekly special time inquiry all-channel or the PSI information table of specific channel digital television transmission stream and SI information table (containing BAT, SDT, EIT, RST, TDT, TOT, ST etc.) store it in local storage.And can according to the natural law of preservation historical electronic program guide required for client, regularly (at least weekly) again the electronic program guides of all-channel or specific channel is re-searched for, decode and newly-increased electronic program guide data is added in memorizer, delete the data message preserving natural law beyond customer demand simultaneously.User is in routine use, it is not necessary to real-time decoding from digital TV transmission stream again, it is possible to by directly reading locally stored wherein institute's information, show in real time.
Above-mentioned simply presently preferred embodiments of the present invention, not does any pro forma restriction to the present invention.Although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention.Any those of ordinary skill in the art, when without departing from technical solution of the present invention scope, may utilize the technology contents of the disclosure above and technical solution of the present invention are made many possible variations and modification, or be revised as equivalents Equivalent embodiments.Therefore, every content without departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.
Claims (7)
1. can the customizing and the method for query history electronic program guide information an of DTV receiver, it is characterised in that: including:
From digital TV transmission stream, read and decode the step of up-to-date electronic program guide information data in real time according to preset pattern；This electronic program guide information includes PSI information and SI information；
The up-to-date electronic program guide information data obtained are deposited, as corresponding in the memorizer storing historical electronic program guide information, the step that electronic program guide information compares with setting, when comparative result is identical, then do not do storage to process, otherwise, up-to-date electronic program guide information data preserved or update in described memorizer；
Accept the inquiry of setting pattern, the electronic program guide information of specified requirements is inquired about from described memorizer, when being absent from the electronic program guide information meeting search condition, return the display interface of original DTV receiver, otherwise, the electronic program guide information meeting search condition obtained is shown in the display interface of DTV receiver.
2. can the customizing and the method for query history electronic program guide information of DTV receiver according to claim 1, it is characterized in that: the described step reading and decoding up-to-date electronic program guide information data according to preset pattern from digital TV transmission stream in real time includes the pattern of the historical electronic program guide information of a preset DTV receiver that can call for user at any time in DTV receiver and arranges interface, this interface includes scanning and storage or updates selection of time hurdle and the object choice hurdle of electronic program guide information, so that the processor of DTV receiver carries out the scanning of electronic program guide information and storage or renewal according to the time set and object.
3. can the customizing and the method for query history electronic program guide information of DTV receiver according to claim 2, it is characterized in that: described object choice hurdle includes the some option hurdle of all channels and can input the channel input field of specified channel information, so that after user carries out the clicking or input of correspondence, it is possible to realize the scanning of the electronic program guide information of all-channel or specified channel and storage or renewal.
4. can the customizing and the method for query history electronic program guide information of DTV receiver according to claim 3, it is characterized in that: described selection of time hurdle include multiple time point option hurdle and can input time information time input field, with when the time set arrives, the processor of DTV receiver starts the scanning of electronic program guide information and storage or renewal.
5. can the customizing and the method for query history electronic program guide information of DTV receiver according to claim 4, it is characterised in that: when described time point option hurdle includes starting shooting, shutdown time and specify the some option of time point.
6. can the customizing and the method for query history electronic program guide information of DTV receiver according to claim 1, it is characterized in that: further, described pattern arranges and also includes time period selectionbar in interface, when in described memorizer, the historical electronic program guide information of storage exceeds the set time period, extraneous for time period historical electronic program guide information is deleted by the processor of DTV receiver from described memorizer.
7. can the customizing and the method for query history electronic program guide information of DTV receiver according to claim 1, it is characterized in that: the inquiry of described acceptance setting pattern is the query interface of the historical electronic program guide information of a preset DTV receiver that can call for user at any time in DTV receiver, carry out the input of querying condition for user, the historical electronic program guide information meeting search condition is then shown in the display interface of DTV receiver by the processor of DTV receiver.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111432256A (en) * | 2019-12-03 | 2020-07-17 | 海信视像科技股份有限公司 | Display device and method for presenting electronic program guide |
| CN111935515A (en) * | 2020-08-14 | 2020-11-13 | 北京永新视博数字电视技术有限公司 | Method, device, equipment and medium for generating electronic program guide data table |
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