CN103024455A - Method and system for accelerating electronic program guide (EPG) data searching of set-top box - Google Patents
Method and system for accelerating electronic program guide (EPG) data searching of set-top box Download PDFInfo
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- CN103024455A CN103024455A CN2012105305577A CN201210530557A CN103024455A CN 103024455 A CN103024455 A CN 103024455A CN 2012105305577 A CN2012105305577 A CN 2012105305577A CN 201210530557 A CN201210530557 A CN 201210530557A CN 103024455 A CN103024455 A CN 103024455A
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Abstract
The invention relates to the field of digital television set-top boxes and discloses a method for accelerating electronic program guide (EPG) data searching of a set-top box. The method comprises the following steps: 1, a server side broadcasts the EPG data through multi-frequency points; 2, at least two tuner circuits are arranged on the set-top box, and each tuner circuit corresponds to a demodulator; and 3, one tuner circuit is used for receiving the EPG data of a current frequency point broadcasted by a server and feeding intermediate-frequency signals tuned by the tuner circuit to a corresponding demodulator for demodulating, and transport (TS) streams demodulated by the demodulator are fed into an internal memory for saving; and the other tuner circuits are used for receiving the EPG data of other frequency points near the current frequency point. The invention further discloses a searching system for accelerating EPG data searching of the set-top box. In frequency point switching, the switched frequency point is the frequency point with the EPF data saved, the saved EPG data can be red, and the EPG data can be presented to users only by analyzing the data of the frequency point of a channel, so that user experience is improved.
Description
Technical field
The present invention relates to the set-top box technique field, relate in particular to a kind of searching method and system that accelerates EPG (Electronic Program Guide) data of set top box.
Background technology
EPG is the english abbreviation of Electronic Program Guide, and the meaning is electric program menu.The index of the miscellaneous service that IPTV provides and navigation are all finished by the EPG system.In fact IPTV EPG is exactly the gate system of IPTV.The interface of EPG system and Web classes of pages seemingly, the assembly that on the EPG interface, generally all provides all kinds of menus, button, link etc. directly to click can be for the user selection program time; Also can comprise the dynamic or static content of multimedia that all kinds of users of confession browse on the interface of EPG.Along with the Digital Television develop rapidly, the digital cable customers number becomes explosive growth, user's request is more and more, the user is also more and more to the demand of TV guide simultaneously, except wondering when which program which platform is play, also want to understand the profile information of each program, this is just so that the EPG[electronic program guides of TV] data volume is increasing, the broadcasting and TV front end is in order to save bandwidth, most of broadcasting and TV front ends all adopt multifrequency point to broadcast the EPG data, be the data that each frequency is only broadcast this frequency, so just cause the user whenever to change to a new frequency, if see the EPG data of TV, just must spend the regular hour to search for the EPG data of this frequency, the user must wait for that the EPG data search of this frequency is finished just and can present to the user during this period of time, has so just caused the user to experience relatively poor.
Summary of the invention
The objective of the invention is to show the technical problem that needs the hysteresis certain hour for EPG data of the prior art, a kind of searching method and system that accelerates EPG (Electronic Program Guide) data of set top box is provided.
Purpose of the present invention realizes by following technical proposals:
A kind of searching method of accelerating EPG (Electronic Program Guide) data of set top box, it specifically comprises following steps: 1. server end adopts multifrequency point to broadcast the EPG data, and each frequency is broadcast the EPG data of this frequency; 2. at least two high frequency tuner circuits are set, corresponding No. one demodulator of each high frequency tuner circuit on the set-top box; 3. wherein one road high frequency tuner circuit is used for the EPG data of the current frequency that reception server broadcasts, and the tuning intermediate-freuqncy signal that goes out of this high frequency tuner circuit is sent into corresponding demodulator carry out demodulation, and the TS stream that demodulator demodulates is sent into internal memory and preserved; Other high frequency tuner circuit be used for receiving near the EPG data of other frequencies the current frequency, and send into corresponding demodulator demodulation, the TS stream after the demodulation is sent into internal memory and is preserved.
Further, said method comprises that also the EPG data that read next frequency from internal memory show when the current frequency of switching is next frequency.
Further, said method also comprises, in the information of changing frequency for adding one or subtract in one, tuner corresponding to output EPG data is set to current tuner, again near the frequency that does not have frequency locking the current frequency is carried out frequency locking and decodes the EPG data preserving the frequency locking Information invariability of other frequencies from current tuner tuner farthest.
Further, above-mentioned high frequency tuner circuit is three the tunnel, corresponding No. one demodulator of every road high frequency tuner circuit, the EPG decoding data of the current frequency of broadcasting when one road high frequency tuner circuit reception server wherein and when preserving, in addition respectively EPG decoding data and the preservation of reception server current former and later two frequencies of frequency of broadcasting of two-way high frequency tuner circuit.
The invention also discloses a kind of search system of accelerating EPG (Electronic Program Guide) data of set top box, it specifically comprises server end and set-top box end, and described server end adopts multifrequency point to broadcast the EPG data, and each frequency is broadcast the EPG data of this frequency; At least two high frequency tuner circuits of described set-top box end setting, corresponding No. one demodulator of each high frequency tuner circuit; Wherein one road high frequency tuner circuit is used for the EPG data of the current frequency that reception server broadcasts, and the tuning intermediate-freuqncy signal that goes out of this high frequency tuner circuit is sent into corresponding demodulator carry out demodulation, and the TS stream that demodulator demodulates is sent into internal memory and preserved; Other high frequency tuner circuit be used for receiving near the EPG data of other frequencies the current frequency, and send into corresponding demodulator demodulation, the TS stream after the demodulation is sent into internal memory and is preserved; When the current frequency of switching was next frequency, the EPG data that read next frequency from internal memory showed.
Further, said system comprises the frequency handover module, described frequency handover module is used in the information of changing frequency for adding one or subtract in one, tuner corresponding to output EPG data is set to current tuner, again near the frequency that does not have frequency locking the current frequency is carried out frequency locking and decodes the EPG data preserving the frequency locking Information invariability of other frequencies from current tuner tuner farthest.
Further, above-mentioned high frequency tuner circuit is three the tunnel, corresponding No. one demodulator of every road high frequency tuner circuit, the EPG decoding data of the current frequency of broadcasting when one road high frequency tuner circuit reception server wherein and when preserving, in addition respectively EPG decoding data and the preservation of reception server current former and later two frequencies of frequency of broadcasting of two-way high frequency tuner circuit.
By adopting above technical scheme, the invention has the beneficial effects as follows: when switching frequency, the frequency that switches to is the frequency of having preserved the EPG data, directly the EPG data of preserving are read, only need to analyze the data of this channel place frequency, just can present at once user EPG data, improved user's experience, and in general, the frequency that the user is switched is near the frequency the current frequency, so, the EPG data of the frequency that the user switches to are all preserved in internal memory, and are convenient for users to use.
Description of drawings
Fig. 1 is the searching method flow chart that the present invention accelerates EPG (Electronic Program Guide) data of set top box
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with Figure of description and specific embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The flow chart of the searching method of quickening EPG (Electronic Program Guide) data of set top box of the present invention as shown in Figure 1, it specifically comprises following steps: 1. server end adopts multifrequency point to broadcast the EPG data, and each frequency is broadcast the EPG data of this frequency; 2. at least two high frequency tuner circuits are set, corresponding No. one demodulator of each high frequency tuner circuit on the set-top box; 3. wherein one road high frequency tuner circuit is used for the EPG data of the current frequency that reception server broadcasts, and the tuning intermediate-freuqncy signal that goes out of this high frequency tuner circuit is sent into corresponding demodulator carry out demodulation, and the TS stream that demodulator demodulates is sent into internal memory and preserved; Other high frequency tuner circuit be used for receiving near the EPG data of other frequencies the current frequency, and send into corresponding demodulator demodulation, the TS stream after the demodulation is sent into internal memory and is preserved; 4. when the current frequency of switching was next frequency, the EPG data that read next frequency from internal memory showed.Adopt many high frequency tuner circuits of the present invention to be used for realizing accelerating the search of EPG (Electronic Program Guide) data of set top box, road high frequency tuner circuit wherein is used for the EPG data of the current frequency that reception server broadcasts, remaining high frequency tuner circuit is used for receiving near the EPG data of the frequency of current frequency and the TS stream after the demodulation is preserved, when switching frequency, the frequency of having preserved the EPG data when the frequency that switches to, just can directly the EPG data of preserving be read, only need to analyze the data of this channel place frequency, just can present at once user EPG data, improved user's experience, and in general, the frequency that the user is switched is near the frequency the current frequency, so, the EPG data of the frequency that the user switches to are all preserved in internal memory, and are convenient for users to use.
Further, said method also comprises, in the information of changing frequency for adding one or subtract in one, the tuner of correspondence is set to the tuner of current output EPG data, again near the frequency that does not have frequency locking the current frequency is carried out frequency locking and decodes the EPG data preserving the frequency locking Information invariability of other frequencies from current tuner tuner farthest.
Further, in the said method, described high frequency tuner circuit is three the tunnel, corresponding No. one demodulator of every road high frequency tuner circuit, the EPG decoding data of the current frequency of broadcasting when one road high frequency tuner circuit reception server wherein and when preserving, in addition respectively EPG decoding data and the preservation of reception server current former and later two frequencies of frequency of broadcasting of two-way high frequency tuner circuit.According to custom, the frequency that the user changes generally all is a upper frequency or next frequency, adopt the technical program so that only need three road high frequency tuner circuits just can realize technical scheme of the present invention, reduced production cost, satisfy simultaneously needs, reduced the time of presenting to user EPG data.
For example, three road high frequency tuner circuits are called after a, b, c three tunnel respectively, respectively corresponding the 1st, 2,3 decoder, b road high frequency tuner circuit and the 2nd decoder are to the EPG decoding data of current frequency with when preserving, a road high frequency tuner circuit and the 1st decoder be to EPG decoding data and the preservation of the previous frequency of current frequency, and c road high frequency tuner circuit and the 3rd decoder are to EPG decoding data and the preservation of a rear frequency of current frequency.When changing current frequency and be frequency corresponding to a road tuner, directly the EPG data of the corresponding frequency of a road tuner from the extracting data of preserving, and with EPG decoding data and the preservation to the previous frequency of current frequency of c road high frequency tuner circuit and the 3rd decoder.The processing mode of b road tuner and the 2nd decoder is constant, so, does not need all to change EPG data corresponding to each tuner at every turn, has reduced the expense of system.
The invention also discloses a kind of search system of accelerating EPG (Electronic Program Guide) data of set top box, it specifically comprises server end and set-top box end, and described server end adopts multifrequency point to broadcast the EPG data, and each frequency is broadcast the EPG data of this frequency; At least two high frequency tuner circuits of described set-top box end setting, corresponding No. one demodulator of each high frequency tuner circuit; Wherein one road high frequency tuner circuit is used for the EPG data of the current frequency that reception server broadcasts, and the tuning intermediate-freuqncy signal that goes out of this high frequency tuner circuit is sent into corresponding demodulator carry out demodulation, and the TS stream that demodulator demodulates is sent into internal memory and preserved; Other high frequency tuner circuit be used for receiving near the EPG data of other frequencies the current frequency, and send into corresponding demodulator demodulation, the TS stream after the demodulation is sent into internal memory and is preserved; When the current frequency of switching was next frequency, the EPG data that read next frequency from internal memory showed.Adopt many high frequency tuner circuits of the present invention to be used for realizing accelerating the search of EPG (Electronic Program Guide) data of set top box, road high frequency tuner circuit wherein is used for the EPG data of the current frequency that reception server broadcasts, remaining high frequency tuner circuit is used for receiving near the EPG data of the frequency of current frequency and the TS stream after the demodulation is preserved, when switching frequency, the frequency of having preserved the EPG data when the frequency that switches to, just can directly the EPG data of preserving be read, only need to analyze the data of this channel place frequency, just can present at once user EPG data, improved user's experience, and in general, the frequency that the user is switched is near the frequency the current frequency, so, the EPG data of the frequency that the user switches to are all preserved in internal memory, and are convenient for users to use.
Further, said system also comprises the frequency handover module, described frequency handover module is used in the information of changing frequency for adding one or subtract in one, the tuner of correspondence is set to the tuner of current output EPG data, again near the frequency that does not have frequency locking the current frequency is carried out frequency locking and decodes the EPG data preserving the frequency locking Information invariability of other frequencies from current tuner tuner farthest.In each replacing frequency, only have wherein road high frequency tuner circuit and demodulator need to again search for the EPG data, reduced the expense of system.
Further, in the said system, described high frequency tuner circuit is three the tunnel, corresponding No. one demodulator of every road high frequency tuner circuit, the EPG decoding data of the current frequency of broadcasting when one road high frequency tuner circuit reception server wherein and when preserving, in addition respectively EPG decoding data and the preservation of reception server current former and later two frequencies of frequency of broadcasting of two-way high frequency tuner circuit.According to custom, the frequency that the user changes generally all is a upper frequency or next frequency, adopt the technical program so that only need three road high frequency tuner circuits just can realize technical scheme of the present invention, reduced production cost, satisfy simultaneously needs, reduced the time of presenting to user EPG data.
For example, three road high frequency tuner circuits are called after a, b, c three tunnel respectively, respectively corresponding the 1st, 2,3 decoder, b road high frequency tuner circuit and the 2nd decoder are to the EPG decoding data of current frequency with when preserving, a road high frequency tuner circuit and the 1st decoder be to EPG decoding data and the preservation of the previous frequency of current frequency, and c road high frequency tuner circuit and the 3rd decoder are to EPG decoding data and the preservation of a rear frequency of current frequency.When changing current frequency and be frequency corresponding to a road tuner, directly the EPG data of the corresponding frequency of a road tuner from the extracting data of preserving, and with EPG decoding data and the preservation to the previous frequency of current frequency of c road high frequency tuner circuit and the 3rd decoder.The processing mode of b road tuner and the 2nd decoder is constant, so, does not need all to change EPG data corresponding to each tuner at every turn, has reduced the expense of system.
Above-mentioned explanation illustrates and has described a preferred embodiment of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the disclosed form of this paper, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can in invention contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not break away from the spirit and scope of the present invention, then all should be in the protection range of claims of the present invention.
Claims (7)
1. searching method of accelerating EPG (Electronic Program Guide) data of set top box, it specifically comprises following steps: 1. server end adopts multifrequency point to broadcast the EPG data, and each frequency is broadcast the EPG data of this frequency; 2. at least two high frequency tuner circuits are set, corresponding No. one demodulator of each high frequency tuner circuit on the set-top box; 3. wherein one road high frequency tuner circuit is used for the EPG data of the current frequency that reception server broadcasts, and the tuning intermediate-freuqncy signal that goes out of this high frequency tuner circuit is sent into corresponding demodulator carry out demodulation, and the TS stream that demodulator demodulates is sent into internal memory and preserved; Other high frequency tuner circuit be used for receiving near the EPG data of other frequencies the current frequency, and send into corresponding demodulator demodulation, the TS stream after the demodulation is sent into internal memory and is preserved.
2. the searching method of quickening EPG (Electronic Program Guide) data of set top box as claimed in claim 1 is characterized in that described method comprises that also the EPG data that read next frequency from internal memory show when the current frequency of switching is next frequency.
3. the searching method of quickening EPG (Electronic Program Guide) data of set top box as claimed in claim 2, it is characterized in that described method also comprises, in the information of changing frequency for adding one or subtract in one, tuner corresponding to output EPG data is set to current tuner, again near the frequency that does not have frequency locking the current frequency is carried out frequency locking and decodes the EPG data preserving the frequency locking Information invariability of other frequencies from current tuner tuner farthest.
4. the searching method of quickening EPG (Electronic Program Guide) data of set top box as claimed in claim 3, it is characterized in that described high frequency tuner circuit is three the tunnel, corresponding No. one demodulator of every road high frequency tuner circuit, the EPG decoding data of the current frequency of broadcasting when one road high frequency tuner circuit reception server wherein and when preserving, in addition respectively EPG decoding data and the preservation of reception server current former and later two frequencies of frequency of broadcasting of two-way high frequency tuner circuit.
5. a search system of accelerating EPG (Electronic Program Guide) data of set top box is characterized in that specifically comprising server end and set-top box end, and described server end adopts multifrequency point to broadcast the EPG data, and each frequency is broadcast the EPG data of this frequency; At least two high frequency tuner circuits of described set-top box end setting, corresponding No. one demodulator of each high frequency tuner circuit; Wherein one road high frequency tuner circuit is used for the EPG data of the current frequency that reception server broadcasts, and the tuning intermediate-freuqncy signal that goes out of this high frequency tuner circuit is sent into corresponding demodulator carry out demodulation, and the TS stream that demodulator demodulates is sent into internal memory and preserved; Other high frequency tuner circuit be used for receiving near the EPG data of other frequencies the current frequency, and send into corresponding demodulator demodulation, the TS stream after the demodulation is sent into internal memory and is preserved; When the current frequency of switching was next frequency, the EPG data that read next frequency from internal memory showed.
6. the search system of quickening EPG (Electronic Program Guide) data of set top box as claimed in claim 5, it is characterized in that described system comprises the frequency handover module, described frequency handover module is used in the information of changing frequency for adding one or subtract in one, tuner corresponding to output EPG data is set to current tuner, again near the frequency that does not have frequency locking the current frequency is carried out frequency locking and decodes the EPG data preserving the frequency locking Information invariability of other frequencies from current tuner tuner farthest.
7. the search system of quickening EPG (Electronic Program Guide) data of set top box as claimed in claim 6, it is characterized in that described high frequency tuner circuit is three the tunnel, corresponding No. one demodulator of every road high frequency tuner circuit, the EPG decoding data of the current frequency of broadcasting when one road high frequency tuner circuit reception server wherein and when preserving, in addition respectively EPG decoding data and the preservation of reception server current former and later two frequencies of frequency of broadcasting of two-way high frequency tuner circuit.
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Cited By (5)
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| CN104486675A (en) * | 2014-12-31 | 2015-04-01 | 浙江创佳数字技术有限公司 | Updating method and system of electronic program menu of set top box |
| WO2017198185A1 (en) * | 2016-05-19 | 2017-11-23 | 深圳创维数字技术有限公司 | Method and apparatus for receiving electronic program guide information |
| CN108881989A (en) * | 2018-06-12 | 2018-11-23 | 深圳国微视安科技有限公司 | A kind of quick plug-flow control method of live streaming TS program and system |
| CN109672924A (en) * | 2018-12-27 | 2019-04-23 | 深圳创维－Rgb电子有限公司 | Generation method, device and the computer readable storage medium of electronic program guides |
| CN113613086A (en) * | 2021-08-20 | 2021-11-05 | 四川九州电子科技股份有限公司 | System and method for sharing one satellite antenna by multiple satellite set top boxes |
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| CN113613086A (en) * | 2021-08-20 | 2021-11-05 | 四川九州电子科技股份有限公司 | System and method for sharing one satellite antenna by multiple satellite set top boxes |
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Application publication date: 20130403 |