CN102780922B - DTV channel search method and channel searching system - Google Patents
DTV channel search method and channel searching system Download PDFInfo
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Abstract
The invention provides a kind of DTV channel search method and channel searching system, wherein, the method comprises the following steps: DTV obtains the ID that the operator of signal is provided to it; Generate the channel list request Concurrency mating with carrier ID and deliver to server; Described server, according to the channel list request of described carrier ID, sends corresponding channel table to described DTV. Send carrier ID by DTV to server, acquisition request channel table, the carrier ID that server sends according to DTV sends corresponding channel table and completes tuning to DTV, because the capacity of channel table is little, only have tens K, so server sends to DTV required time short channel table, tuning required time is short. The technical scheme of full range point tuning and quick channel search in prior art relatively, channel search method of the present invention has improved tuning speed greatly, has promoted user experience.<!--1-->
Description
Technical field
The present invention relates to TV technology, specially refer to a kind of DTV channel search method andChannel searching system.
Background technology
At present, the automatic channel search mode of DTV mainly contains two kinds, is respectively full range point tuningAnd quick channel search. Wherein, full range point tuning is generally from low frequency to high-frequency order tuning, thisPlant station search mode and generally need about 20 minutes, the shortcoming that exists tuning required time to grow. Hurry upFirst speed tuning needs to carry out locking frequency point, then through processing modes such as intermediate frequency amplification, filtrations, obtainsProgram Association Table, and obtain required Program Map Table and identification code transmission according to Program Association TableBag, finally carries out and has initialized tuning operation nonvolatile random access memory, thisStation search mode approximately needs about 10 minutes, has equally the long shortcoming of tuning required time.
Meanwhile, above-mentioned two kinds of station search modes are more passive, as NIT (NetworkInformationTable, network information table) while having amendment or frequency to have renewal, can not obtain in time renewal.
Summary of the invention
The invention provides a kind of DTV channel search method, be intended to improve tuning speed.
The embodiment of the invention discloses a kind of DTV channel search method, comprise the following steps:
DTV obtains the ID that the operator of signal is provided to it;
Generate the channel list request Concurrency mating with carrier ID and deliver to server;
Described server is according to the channel list request of described carrier ID, to described numeral electricityDepending on sending corresponding channel table and check information;
Described DTV compares the reference information from operator and described check informationRight, if consistent, tuning success, wherein said reference information comprises reference characteristic frequency and baseAccurate feature channel, described check information comprises calibration feature frequency and calibration feature channel.
Preferably, at described server according to the channel list request of described carrier ID, toDescribed DTV sends corresponding channel table and also comprises step afterwards:
Described DTV is preserved described channel table.
Preferably, described DTV obtains the ID that the operator of signal content is provided to itConcrete steps comprise:
DTV provides the operation of signal according to self on-site Address automatic matching to itBusiness, and obtain carrier ID; Or
What Digital TV Receiving user selected provides the operator of signal to it, and obtains operatorID。
Preferably, described server was gone back before sending corresponding channel table to described DTVComprise step:
Described server according to the notice of the described operator that signal is provided to DTV orThe update request of described DTV feedback, upgrades the channel table in described server.
Preferably, DTV channel search method also comprises:
Described DTV compares the reference information from operator and described check informationRight, if inconsistent, point out tuning error message, proceed to local tuning.
The embodiment of the invention also discloses a kind of channel searching system, comprise DTV and server,Wherein,
Described DTV, for obtaining the ID that the operator of signal is provided to it, Yi JishengThe channel list request Concurrency that becomes to mate with carrier ID is delivered to server;
Described server, for according to the channel list request of described carrier ID, to describedDTV sends corresponding channel table and check information;
Described DTV, also for by the reference information from operator and described check informationCompare, if consistent, tuning success, wherein said reference information comprises that reference characteristic is frequentlyPoint and reference characteristic channel, described check information comprises calibration feature frequency and calibration feature frequentlyRoad.
Preferably, described DTV is also for preserving described channel table.
Preferably, described DTV is carried to it according to self on-site Address automatic matchingFor the operator of signal, and obtain carrier ID; Or described Digital TV Receiving user choosingThat selects provides the operator of signal to it, and obtains carrier ID
Preferably, described server is also for according to the described operation that signal is provided to DTVThe update request of business's notice or described DTV feedback, upgrades the frequency in described serverRoad table.
Preferably, described DTV, also for by the reference information from operator with described inCheck information is compared, if inconsistent, points out tuning error message, proceeds to local tuning.
DTV channel search method disclosed in this invention, sends to server by DTVCarrier ID, acquisition request channel table, the carrier ID that server sends according to DTVSend corresponding channel table and complete tuning to DTV, because the capacity of channel table is little, only haveTens K, so server sends to DTV required time short channel table, i.e. tuning instituteTake time short. The technical scheme of full range point tuning and quick channel search in prior art relatively, thisBright channel search method has improved tuning speed greatly, has promoted user experience.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the first embodiment of DTV channel search method in the present invention;
Fig. 2 is the schematic flow sheet of the second embodiment of DTV channel search method in the present invention;
Fig. 3 is the schematic flow sheet of the 3rd embodiment of DTV channel search method in the present invention;
Fig. 4 is the schematic flow sheet of the 4th embodiment of DTV channel search method in the present invention;
Fig. 5 is the structured flowchart of channel searching system preferred embodiment in the present invention.
Realization, functional characteristics and the advantage of the object of the invention, in connection with embodiment, are done with reference to accompanying drawingFurther illustrate.
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain the present invention, noBe used for limiting the present invention.
With reference to Fig. 1, Fig. 1 is the flow process of the first embodiment of DTV channel search method in the present inventionSchematic diagram, before step S11 first by DTV interconnection network, the tuning in the present inventionMethod is network tuning, and user need to open network tuning, if network in certain DTVThe priority of tuning is higher than local tuning (automatic channel search and manually tuning, wherein automatic channel search bagDraw together full range point tuning and quick channel search) time, the operation of opening network tuning without user.
In the present embodiment, this DTV channel search method comprises the following steps:
Step S11, DTV obtains the ID that the operator of signal is provided to it.
As everyone knows, DTV in different cities for its operator that signal content is provided not yetWith (as wired in Beijing song China, Guangdong etc.), some city even have multiple operators (asShenzhen has the martial prowess, Shekou wired etc.), and the signal content difference that provides of different operators. FortuneThe signal content difference that the business of battalion provides refers to channel difference or channel parameter difference, although as channelIdentical but be placed on different frequencies. Because all there is its distinctive channel table in each operator, ifDTV has accessed the inconsistent operator of signal using with DTV, just will search out notTrue channel table, so DTV need to mate or select corresponding operator.
Step S12, generates the channel list request Concurrency mating with carrier ID and delivers to server.
Produce the channel list mating with carrier ID according to the carrier ID of obtaining in step S11Request, in the time that DTV carries out network tuning, sends channel table request to server.
Step S13, server, according to the channel list request of carrier ID, is sent out to DTVSend corresponding channel table.
Server by DTV supplier according to the information of the size of customer volume and each operatorSet up, or set up according to network tuning standard, server is logical by network and DTVLetter. Server is mainly used in storage of channel table, is receiving DTV taking carrier ID as ginsengWhile counting the channel table request sending over, send the channel table corresponding with this carrier ID to numeralTV, completes the network tuning of DTV.
In the time not storing the carrier ID that DTV sends in server, DTVTo obtain less than corresponding channel table, it is unsuccessful that channel table is obtained in prompting.
DTV channel search method of the present invention, DTV is by sending operator to serverID, acquisition request channel table, the carrier ID that server sends according to DTV sends correspondingChannel table complete tuning to DTV, because the capacity of channel table is little, only have tens K,So server sends to DTV required time short channel table, i.e. tuning required timeShort. The technical scheme of full range point tuning and quick channel search in prior art relatively, of the present invention searchingPlatform method has improved tuning speed greatly, has promoted user experience.
With reference to Fig. 2, Fig. 2 is the flow process of the second embodiment of DTV channel search method in the present inventionSchematic diagram. Method in this embodiment is on the basis of the first embodiment, after step S13Also comprise:
Step S14, DTV is preserved channel table.
Because channel table does not substantially change within a period of time, so without each number of openingWord TV all carries out network tuning, and in the present embodiment, DTV is preserved above-described embodiment stepChannel table in rapid 13, is convenient to DTV on the one hand and uses in the time not being connected to network, anotherAlthough network tuning required time is extremely short on the one hand, but will expend time in and resource, will be frequentlyRoad table is kept in DTV, can further reduce and obtains the time of channel table and reduce moneyExpending of source.
In specific embodiment, DTV obtains the ID that the operator of signal content is provided to itConcrete steps comprise: DTV provides to it according to self on-site Address automatic matchingThe operator of signal, and obtain carrier ID; Or Digital TV Receiving is user-selectedProvide the operator of signal to it, and obtain carrier ID.
In the time that DTV has operator's identification module, can pass through operator's identification module basisThe on-site address of the DTV signal that identification is used with DTV is automatically correspondingOperator, and obtain carrier ID.
Certainly DTV also can be selected corresponding operator based on user behavior, as by carryingSelect to user for user interface, now user need to know the letter that DTV usesNumber corresponding operator name.
With reference to Fig. 3, Fig. 3 is the flow process of the 3rd embodiment of DTV channel search method in the present inventionSchematic diagram. Method in this embodiment is on the basis of the first embodiment, before step S13Also comprise:
Step S15, server is according to the described notice that the operator of signal is provided to DTVOr the update request of described DTV feedback, the channel table in update server.
Because signal content may be revised in certain time by operator, for example, increase or reduce oneIndividual channels etc., so server need to be revised signal content and upgrade frequency wherein along with operatorRoad table, DTV obtains from server when ensureing network tuning channel table and operatorSignal content consistent.
Server is according to the notice of the described operator that signal is provided to DTV or numeralThe update request of TV feedback, the channel table in update server. Particularly, work as DTVWhen provider and the common maintenance server of operator, operator will notify clothes when amendment signal contentBusiness device, and helping service device upgrades channel table wherein. Server is according to the feedback of DTVUpgrade channel table and comprise two kinds of modes, a kind of is the DTV that utilizes user, when user is to itWhen DTV carries out network tuning, operator's signal content is checked to renewal, ifThere is amendment signal content in operator, and this information is fed back to server by user's DTV,So that server upgrades in time; Another kind is the sales territory of DTV provider at DTVTerritory arranges and moves commercial machine, and timing checks renewal to operator's signal content, if fortuneThe business of battalion has amendment signal content, and this information is fed back to server by commercial machine, so that serverUpgrade in time.
For the DTV that the makes user channel table in server upgrade after also corresponding renewal,In specific embodiment, the present invention also comprises according to the update status of server mid band table automaticUpgrade the step of the channel table in DTV, in the time that user opens automatic renewal, DTVWhether monitoring server mid band table is had to renewal, after the channel table in server upgrades, numberThe renewal of the automatic completing channel table in word TV backstage, and point out channel table to upgrade. Certainly userAlso can close as required automatic renewal, now DTV to the channel table in server is notNo have renewal to monitor. Or whether the channel table in monitoring server has renewal in real time, butAutomatically do not upgrade channel table wherein according to the renewal of the channel table in server, but pass throughThe mode of prompting is informed user, selects voluntarily when to upgrade the channel in DTV by userTable.
In the time that user selects the not corresponding operator of the signal that uses with DTV, orUser uses the another one operator different from its operator previously having used and does not have in timeAmendment is when operator, selects improperly to cause the channel table that obtains not just because of operator in order to solveTrue technical problem, in specific embodiment, the present invention also comprises that the channel table to obtaining carries outThe step of verification. According to carrier ID, send corresponding channel to DTV at serverWhen table, also send corresponding check information to DTV, DTV will be from operatorReference information and this check information compare, if consistent, tuning success; If it is inconsistent,Point out tuning error message; Wherein, reference information comprises reference characteristic frequency and reference characteristicChannel, check information comprises calibration feature frequency and calibration feature channel, accordingly, benchmark letterBreath and check information are compared and are compared for reference characteristic frequency and calibration feature frequency, orPerson compares for reference characteristic channel and calibration feature channel.
With reference to Fig. 4, Fig. 4 is the stream of the 4th embodiment of DTV channel search method in the present inventionJourney schematic diagram. In this embodiment, this DTV channel search method comprises the following steps:
Step S21, DTV obtains the ID that the operator of signal is provided to it. This step withThe S11 step of the first embodiment is identical, does not repeat them here.
Step S22, generates the channel list request Concurrency mating with carrier ID and delivers to server.This step is identical with the S12 step of the first embodiment, does not repeat them here.
Step S23, server is according to the described notice that the operator of signal is provided to DTVOr the update request of described DTV feedback, the channel table in update server. This stepIdentical with the S15 step of the 3rd embodiment, do not repeat them here.
Step S24, server sends to DTV according to the channel list request of carrier IDCorresponding channel table, and send corresponding check information according to carrier ID to DTV.
Server, according to the channel list request of carrier ID, sends corresponding frequency to DTVRoad table, identical with the S13 step of the first embodiment, do not repeat them here.
Server, according to carrier ID, sends corresponding check information to DTV.
Wherein, check information can be calibration feature frequency or calibration feature channel. Particularly,Due to the NIT (NetworkInformationTable, network information table) of different operators noWith, so check information can be calibration feature frequency, i.e. NIT dominant frequency point verification. Due to notAll have some feature channels with region, i.e. local channel, as there are Shenzhen satellite TV, Shenzhen joy in ShenzhenThe local channels such as pleasure, city, Shenzhen, and the local channel in each city is all incomplete same, soCheck information can be calibration feature channel, i.e. local station verification.
Step S25, DTV compares the reference information from operator and check informationRight, if consistent, tuning success; If inconsistent, point out tuning error message, proceed to thisGround tuning.
Operator sends reference information to DTV constantly, when Digital TV Receiving is to serviceWhen check information that device sends, reference information and check information are compared, if unanimously,The signal that uses with DTV of operator that shows access is consistent, the frequency that DTV obtainsRoad table is correct, the success of network tuning; If inconsistent, show the operator and the DTV that accessThe signal using is inconsistent, points out tuning error message, or after prompting tuning is made mistakes(automatic channel search and manually tuning, wherein automatic channel search comprises full range point tuning to proceed to local tuningAnd quick channel search).
When check information is calibration feature frequency, i.e., when NIT dominant frequency point verification, DTV connectsThe reference information from operator being subject to is reference characteristic frequency, i.e. reference information and check informationCompare and compare for reference characteristic frequency and calibration feature frequency. When check information is schoolTest feature channel, i.e. when local station verification, the letter of the benchmark from operator that DTV is acceptedBreath is reference characteristic channel, and reference information and check information are compared as reference characteristic channelCompare with calibration feature channel.
Step S26, DTV is preserved channel table. The S14 step of this step and the second embodimentIdentical, do not repeat them here.
The invention also discloses a kind of channel searching system, with reference to Fig. 5, Fig. 5 is tuning system in the present inventionThe structured flowchart of system preferred embodiment, this channel searching system comprises DTV 1 in the present embodimentWith server 2, wherein: DTV 1 is for obtaining the ID that the operator of signal is provided to it,And the channel list request Concurrency that generation is mated with carrier ID is delivered to server 2; Numeral electricityBy obtaining the ID that the operator of signal content is provided to it, ensure that DTV 1 uses depending on 1The signal signal that provides with operator identical, and then ensure follow-uply to obtain from server 2Channel table is correct. DTV 1 is by sending the channel list request of carrier ID to server 2Carry out acquisition request channel table.
Server 2 is for according to the channel list request of carrier ID, and it is right to send to DTV 1The channel table of answering. Server 2 is mainly used in storage of channel table, is receiving DTV 1 with fortuneThe business ID of battalion be parameter send over channel table request time, send the frequency corresponding with this carrier IDRoad table, to DTV 1, completes the network tuning of DTV 1. Because the capacity of channel table is little,Only have tens K, so server 2 sends to DTV 1 required time short channel table,Tuning required time is short. The technical side of full range point tuning and quick channel search in prior art relativelyCase, channel searching system of the present invention has improved tuning speed greatly, has promoted user experience.
In specific embodiment, the channel table that DTV 1 also sends for preserving server 2.
Because channel table does not substantially change within a period of time, so without each number of openingWord TV all carries out network tuning, and in the present embodiment, DTV 1 is also for the service of preservingThe channel table that device 2 sends, is convenient to DTV 1 on the one hand and uses in the time not being connected to network,Although network tuning required time is extremely short on the other hand, but to expend time in and resource, willChannel table is kept in DTV 1, can further reduce and obtains the time of channel table and subtractExpending of few resource.
In specific embodiment, DTV 1 is given according to self on-site Address automatic matchingIt provides the operator of signal, and obtains carrier ID; Or DTV 1 receives user instituteThat selects provides the operator of signal to it, and obtains carrier ID.
In the time that DTV 1 accesses corresponding operator by Auto-matching mode, DTV 1Comprise operator's identification module, on-site according to DTV 1 by operator's identification moduleThe address corresponding operator of signal that identification is used with DTV 1 automatically.
Certainly DTV also can be selected operator based on user behavior, as by user is providedInterface is selected to user, and now user need to know the signal correspondence that DTV usesOperator name.
In specific embodiment, server 2 is also for providing signal according to described to DTVThe notice of operator or the update request of described DTV feedback, in update serverChannel table.
Because signal content may be revised in certain time by operator, for example, increase or reduce oneIndividual channels etc., so server 2 need to be revised signal content and upgrade wherein along with operatorChannel table, DTV 1 obtains from server 2 when ensureing network tuning channel table and fortuneThe business's of battalion signal content is consistent.
Server 2 is according to notice or DTV that the operator of signal is provided to DTVThe update request of 1 feedback, the channel table in update server. Particularly, when DTV is carriedWhen supplier and the common maintenance server of operator, when operator amendment signal content by notification serviceDevice 2, and helping service device 2 upgrades channel table wherein. Server 2 is anti-according to DTV 1Feedback is upgraded channel table and is comprised two kinds of modes, and a kind of is the DTV 1 that utilizes user, works as userWhen its DTV 1 is carried out to network tuning, operator's signal content is checked moreNewly, if there is amendment signal content in operator, user's DTV 1 is by this information feedbackGive server 2, so that server 2 upgrades in time; Another kind is that DTV provider is in numeralThe sales region of TV 1 arranges and moves commercial machine, and timing is examined operator's signal contentLook into renewal, if there is amendment signal content in operator, this information is fed back to service by commercial machineDevice 2, so that server 2 upgrades in time.
For the DTV 1 that the makes user channel table in server 2 also more corresponding after upgradingNewly, in the present embodiment, DTV 1 also comprises automatically more new module, automatically new module basis moreThe update status of server 2 mid band tables upgrades the channel table in DTV 1 automatically. Work as userOpen while automatically renewal, more monitoring server 2 mid band tables are had renewal by whether new module automatically,After the channel table in server 2 upgrades, more new module completes DTV 1 intermediate frequency automatically automaticallyThe renewal of road table, and point out channel table to upgrade. Certainly user also can close as required automaticallyUpgrade, now more whether new module does not have renewal to supervise to the channel table in server 2 automaticallyControl. Or whether the channel table in the automatic more real-time monitoring server 2 of new module has renewal, butAutomatically do not upgrade channel table wherein according to the renewal of the channel table in server 2, but logicalCross the mode of prompting and inform user, select voluntarily when to upgrade the frequency in DTV 1 by userRoad table.
In the time that user selects the not corresponding operator of the signal that uses with DTV 1, orUser use the another one operator different with the operator of its previously use and do not have andWhen Shi Xiugai operator, select improperly to cause the channel table that obtains not because of operator in order to solveCorrect technical problem, in concrete the present embodiment server 2 also for according to carrier ID,Send corresponding check information to DTV; DTV 1 is also for by from operatorReference information and described check information are compared, if consistent, tuning success; If it is inconsistent,Point out tuning error message, proceed to local tuning; Wherein, reference information comprises reference characteristicFrequency and reference characteristic channel, check information comprises calibration feature frequency and calibration feature channel.Particularly, due to the NIT of different operators (NetworkInformationTable, network letterBreath table) difference, so check information can be calibration feature frequency, i.e. NIT dominant frequency point verification,Correspondingly, reference information is reference characteristic frequency. Because different geographical all has some feature channels,Be local channel, have the local channels such as Shenzhen satellite TV, Shenzhen amusement, city, Shenzhen as Shenzhen,And the local channel in each city is all incomplete same, so check information can be calibration feature frequencyRoad, i.e. local station verification, correspondingly, reference information is reference characteristic channel.
When check information is calibration feature frequency, when reference information is reference characteristic frequency, benchmarkInformation and check information are compared and are compared for reference characteristic frequency and calibration feature frequency.
When check information is calibration feature channel, when reference information is reference characteristic channel, benchmarkInformation and check information are compared and are compared for reference characteristic channel and calibration feature channel.
The foregoing is only the preferred embodiments of the present invention, not thereby limit patent of the present inventionScope, every equivalent structure or equivalent flow process of utilizing description of the present invention and accompanying drawing content to doConversion, or be directly or indirectly used in other relevant technical fields, be all in like manner included in thisIn bright scope of patent protection.
Claims (10)
1. a DTV channel search method, is characterized in that, comprises the following steps:
DTV obtains the ID that the operator of signal is provided to it;
Generate the channel list request Concurrency mating with carrier ID and deliver to server;
Described server is according to the channel list request of described carrier ID, to described numeral electricityDepending on sending corresponding channel table and check information;
Described DTV compares the reference information from operator and described check informationRight, if consistent, tuning success, wherein said reference information comprises reference characteristic frequency and baseAccurate feature channel, described check information comprises calibration feature frequency and calibration feature channel.
2. method according to claim 1, is characterized in that, at described server rootAccording to the channel list request of described carrier ID, send corresponding channel to described DTVAfter table, also comprise step:
Described DTV is preserved described channel table.
3. method according to claim 1, is characterized in that, described DTV obtainsDrawing it provides the concrete steps of the ID of the operator of signal content to comprise:
DTV provides the operation of signal according to self on-site Address automatic matching to itBusiness, and obtain carrier ID; Or
What Digital TV Receiving user selected provides the operator of signal to it, and obtains operatorID。
4. method according to claim 1, is characterized in that, described server toDescribed DTV sends corresponding channel table and also comprises step before:
Described server according to the notice of the described operator that signal is provided to DTV orThe update request of described DTV feedback, upgrades the channel table in described server.
5. according to the method described in claim 1 to 4 any one, it is characterized in that, also bagDraw together:
Described DTV compares the reference information from operator and described check informationRight, if inconsistent, point out tuning error message, proceed to local tuning.
6. a channel searching system, is characterized in that, comprises DTV and server, wherein,
Described DTV, for obtaining the ID that the operator of signal is provided to it, Yi JishengThe channel list request Concurrency that becomes to mate with carrier ID is delivered to server;
Described server, for according to the channel list request of described carrier ID, to describedDTV sends corresponding channel table and check information;
Described DTV, also for believing the reference information from operator and described verificationBreath is compared, if consistent, tuning success, wherein said reference information comprises reference characteristicFrequency and reference characteristic channel, described check information comprises calibration feature frequency and calibration feature frequentlyRoad.
7. channel searching system according to claim 6, is characterized in that, described numeral electricityDepending on also for preserving described channel table.
8. channel searching system according to claim 6, is characterized in that, described numeral electricityDepending on providing the operator of signal according to self on-site Address automatic matching to it, and obtain fortuneThe business ID of battalion; Or what described Digital TV Receiving user selected provides the operator of signal to it,And obtain carrier ID.
9. channel searching system according to claim 6, is characterized in that, described serverAlso for according to the notice of the described operator that signal is provided to DTV or described numeralThe update request of TV feedback, upgrades the channel table in described server.
10. according to the channel searching system described in claim 6 to 9 any one, it is characterized in that,
Described DTV, also for believing the reference information from operator and described verificationBreath is compared, if inconsistent, points out tuning error message, proceeds to local tuning.
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| CN104853232B (en) * | 2015-05-25 | 2018-09-07 | 广州视源电子科技股份有限公司 | Television channel updating method and device |
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| WO2019028580A1 (en) * | 2017-08-07 | 2019-02-14 | 深圳市智晟达科技有限公司 | Digital television channel search method and system |
| CN109587550B (en) * | 2017-10-27 | 2021-05-14 | 深圳市鼎盛光电有限公司 | Channel searching method and device |
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| US7814525B2 (en) * | 2006-02-09 | 2010-10-12 | Sony Corporation | Navigation within switched digital streamed content |
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| EP1968314A2 (en) * | 1995-10-02 | 2008-09-10 | Starsight Telecast, Inc. | Systems and methods for providing television schedule information |
| CN101087387A (en) * | 2006-06-08 | 2007-12-12 | 深圳Tcl新技术有限公司 | A method and system for analog TV program navigation |
| CN101083715A (en) * | 2006-11-08 | 2007-12-05 | 常德广达广播电视宽带网络有限公司 | Method for quick writing channel information into cable digital TV set-top box |
| CN101651792A (en) * | 2008-08-13 | 2010-02-17 | 深圳Tcl新技术有限公司 | Digital television all-in-one machine and method for searching channels |
| CN102164259A (en) * | 2011-02-01 | 2011-08-24 | 华为终端有限公司 | Television program searching method, receiving method as well as related equipment and system |
| CN102413366A (en) * | 2011-12-02 | 2012-04-11 | 深圳Tcl新技术有限公司 | Channel searching method and device for digital television |
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