CN1925581A - Channel switching method - Google Patents
Channel switching method Download PDFInfo
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- CN1925581A CN1925581A CN 200510029233 CN200510029233A CN1925581A CN 1925581 A CN1925581 A CN 1925581A CN 200510029233 CN200510029233 CN 200510029233 CN 200510029233 A CN200510029233 A CN 200510029233A CN 1925581 A CN1925581 A CN 1925581A
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Abstract
This invention relates to channel switch method, which comprises the following steps: sorting the broadcast signal channels into multiple sets and according to user input Up and Down orders and ruled channel set adjusting relative channel Up and Down; according to the input Left or Right orders, processing adjust from relative channel set on channel Left and Right.
Description
Technical field
The invention relates to channel conversion method, specifically, the receiving channels of receiving broadcast signal is categorized as after a plurality of channel groups exactly, upwards (Up) or the instruction of (Down) downwards imported by instruction inputting device according to the user, by the channel group of regulation with corresponding channel upwards (Up) or downwards (Down) regulate; Import left (Left) or the instruction of (Right) to the right according to the user, and the channel in relevant channel group to corresponding channel left (Left) or to the right (Right) regulate.
Background technology
Fig. 1 is the schematic diagram that expression describes common channel conversion method.As shown in Figure 1, for common channel conversion method, broadcast signal receiver is retrieved listening to the channel of watching automatically, then, the channel information of retrieving is stored on the memory.Perhaps the user directly retrieves channel, then the channel retrieving information is stored on the memory.Then, import as the user under the situation of the instruction that requires to carry out channel conversion, system will show the channel that is retrieved in order according to the channel information that is stored in the memory, watch thereby can allow the user select to listen to the user.
As shown in Figure 1, so-called " current channel " promptly is meant the current channel of watching of listening to of user.In Fig. 1, the situation of listening to the broadcast singal of watching the 9-0 channel is indicated.
In addition, the designation that is indicated in Fig. 1 is meant broadcast signal receiver automatically to can listening to after the channel of watching retrieves, and with the channel correlation information stores that retrieves in memory.Or the user directly retrieves channel, then with the channel correlation information stores that retrieves in memory.Above-mentioned designation just is meant above-mentioned retrieval and stored channel information.
When the user listens in the process of watching the broadcasting of current 9-0 channel, listen to and watch and press under the situation of the instruction key of (Up) upwards that current channel is converted to the 9-1 channel if the user wants that current channel is converted to a last channel.Then, again the broadcast singal of corresponding channel is exported.That is to say, if the user presses instruction key upwards, current channel will according to 9-0 → 9-1 → 11-0 →,,,,,, the order of 7-0 → 7-1 → 9-0 number changes.In contrast, press as the user under the situation of the instruction key of (Down) downwards,
Current channel will be changed according to the order opposite with said sequence.
But for this common channel conversion method, it is all right that it is applied to the less analog broadcasting of channel number.But, the situation of digital broadcasting and the situation of analog broadcasting differ widely, the channel of digital broadcasting can reach more than hundreds of, if also using this common channel conversion method changes channel, so in this case, the user wants according to the requirement of oneself channel to be changed with regard to repeatedly inputting channel conversion instruction and channel is regulated of needs.Simultaneously, also can waste the too many time of user.This is its existing problem.
Summary of the invention
Therefore, the present invention proposes for addressing the above problem.The objective of the invention is to for the user provides the fast method of conversion of a kind of channel, thus make the user can according to oneself requirement and channel is changed apace.
To achieve these goals, has the feature that constitutes by following step according to channel conversion method of the present invention: the receiving channels of receiving broadcast signal is distinguished according to the identical channel of main designation, thus they are categorized as different channel groups' the 1st step; Through after above-mentioned the 1st step, whether the user has been imported the 2nd step that the situation of the instruction of request channel alteration is judged; Judged result according to above-mentioned the 2nd step, if being the request up/down of input, above-mentioned inputting channel alteration command carries out the instruction of channel alteration, then the channel group is selected and the channel up/down is regulated according to the order of up/down, then, from through above-mentioned to the channel group select and the channel up/down regulated after the channel group in the 3rd step of a channel of selection; Judged result according to above-mentioned the 2nd step, if being the request left/right of input, above-mentioned inputting channel alteration command carries out the instruction of channel alteration, then from the channel group's of current selection channel, channel is selected and the channel left/right is regulated, then, from through above-mentioned to the channel group select and the channel left/right regulated after the channel group in the 4th step of a channel of selection.
In addition, to achieve these goals, also has the feature that constitutes by following step according to channel conversion method of the present invention: the receiving channels of receiving broadcast signal is classified it according to analog channel and digital channel.Then, more above-mentioned digital channel is distinguished according to the identical channel of main designation, thus they are categorized as different channel groups.Then, the 1st step that determines of the order that sorted analog channel and digital channel group's up/down is regulated; Through after above-mentioned the 1st step, whether the user has been imported the 2nd step that the situation of the instruction of request channel alteration is judged; Judged result according to above-mentioned the 2nd step, if being the request up/down of input, above-mentioned inputting channel alteration command carries out the instruction of channel alteration, then analog channel or digital channel group are selected and the channel up/down is regulated according to the order of up/down, then, from through above-mentioned to the digital channel group select and the channel up/down regulated after the channel group in the 3rd step of a channel of selection; According to the judged result of above-mentioned the 2nd step,, above-mentioned inputting channel alteration command carries out the instruction of channel alteration if being the request left/right of importing.Simultaneously, if the current channel of seeing belongs to the channel among the digital channel group, then from the digital channel group's of current selection channel, channel is selected and the channel left/right is regulated, then, from through above-mentioned to the channel group select and the channel left/right regulated after the channel group in the 4th step of a channel of selection.
Effect of the present invention:
As mentioned above, for foundation channel conversion method of the present invention, after the channel classification with receiving broadcast signal is a plurality of channel groups, import upwards (Up) or the situation of the instruction of (Down) downwards according to the user, by the channel group of regulation with corresponding channel upwards (Up) or downwards (Down) regulate; Import left (Left) or the situation of the instruction of (Right) to the right according to the user, and the channel in relevant channel group to corresponding channel left (Left) or to the right (Right) regulate.Like this, the user just can only pass through the instruction of input up/down/left/right, and channel is regulated apace, thereby just can indiscriminately ad. as one wishes watch and oneself want the channel watched, for the user provides very big convenience, therefore, this is a very useful invention.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 is the schematic diagram that expression describes common channel conversion method.
Fig. 2 is that expression is applicable to the structural representation according to the broadcast signal receiver of channel conversion method of the present invention.
Fig. 3 is the schematic diagram that expression describes the embodiment according to channel conversion method of the present invention.
Fig. 4 is that expression is classified channel according to certain standard to foundation channel conversion method of the present invention, then a schematic diagram that embodiment describes of channel being changed by the desirable mode of user according to classification results.
Fig. 5 is the schematic diagram that expression describes the another one embodiment according to channel conversion method of the present invention.
Fig. 6 is expression to according to channel conversion method of the present invention and channel being classified according to certain standard, then the schematic diagram that describes of the another one embodiment that channel is changed according to the desirable mode of user according to classification results.
The symbol description of major part in the accompanying drawing:
20: analog tuner device/demodulating equipment 21: digital tuning device/demodulating equipment
22: conversion equipment 23: demultplexer
24: image processor 25: image output device
26: control device 27: storage device
28:OSD device 29: instruction inputting device
Embodiment
To before describing according to channel conversion method of the present invention, at first to carry out simple explanation to main (Major) designation of channel and less important (Minor) designation of channel, like this, help user's understanding.
For the main designation of above-mentioned channel and the notion of less important designation, the conversion of the broadcast mode that carries out to the digital broadcasting mode along with original analog broadcasting mode, the designation of the analog broadcast channel that is now just using still keeps.Simultaneously, as the scheme that proposes for digital broadcast signal is transmitted, be exactly the mode that channel is represented, it is that the primary block that channel is formed with 2 numerals according to the mode of 11-1 is represented.The designation of the analog channel that used originally as main designation, be that is to say that in 2 primary blocks representing the channel designation, the designation of channel mainly relies on first digit to decide here.And arbitrarily decision of second primary block person that is the broadcasting.Therefore, it is less important designation.That is to say that in 2 bit digital, it is determined by the 2nd bit digital.(about the main designation of above-mentioned channel and the content of less important designation are disclosed knowledge.Therefore, just only make brief description here, no longer be described in detail.)
Below, with reference to the accompanying drawings the embodiment according to channel conversion method of the present invention is described in detail.
At first, Fig. 2 is that expression is applicable to the structural representation according to the broadcast signal receiver of channel conversion method of the present invention.
As shown in the figure, being applicable to that broadcast signal receiver according to channel conversion method of the present invention has by following components constitutes: analog broadcast signal is selected, and carried out the analog tuner device/demodulating equipment 20 of demodulation; Digital broadcast signal is selected, and carried out the digital tuning device/demodulating equipment 21 of demodulation; From the restituted signal of above-mentioned analog tuner device/demodulating equipment 20 and digital tuning device/demodulating equipment 21, select the conversion equipment 22 of a signal; Be separated into the demultplexer 23 of voice signal and signal of video signal in the restituted signal with above-mentioned conversion equipment 22 selections; Above-mentioned demultplexer 23 isolated signal of video signal are processed into the image processor 24 that to listen to the signal of watching and carry out the signal of video signal processing; The storage device 27 that the working procedure of above-mentioned control device 26 is stored; Above-mentioned various piece is controlled, according to the user to the selection situation of channel and the switching motion of above-mentioned conversion equipment 22 is controlled, simultaneously, the control device 26 controlled of above-mentioned OSD device 28 is exported osd signal for the information with channel correlation shows on the picture of image output device 25 process; According to user's operation and inputting channel transformation directive, power supply control command etc. are the instruction inputting device 29 of instruction that the operation of broadcast signal receiver is controlled; Under the control of above-mentioned control device 26, for relevant channel information is shown the OSD device 28 of the osd signal of exporting regulation on picture; And the signal of video signal that will handle through above-mentioned image processor 24 and the image output device 25 that on picture, shows by the signal of OSD device 28 outputs.
As mentioned above, for being applicable to broadcast signal receiver of the present invention, it can with according to the broadcast singal of the specified channel of user's operation and selection via analog tuner device/demodulating equipment 20, digital tuning device/demodulating equipment 21 is adjusted, then, approve by the information of 26 pairs of above-mentioned adjustment of process of control device.Whether approval and the 26 pairs of received broadcast singals of control device that receive adjustment information are that analog signal is still judged for the situation of digital signal.Then, according to above-mentioned judged result, and the control signal of regulation is approved via conversion equipment 22.Here, if channel correlation is an analog broadcast channel, then above-mentioned conversion equipment 22 just will be selected by the broadcast singal of the channel correlation of analog tuner device/demodulating equipment 20 tuning/demodulation, then with its output.On the contrary, if above-mentioned channel correlation is a broadcast channel, then above-mentioned conversion equipment 22 just will be selected by the broadcast singal of the channel correlation of digital tuning device/demodulating equipment 21 tuning/demodulation, then with its output.Then, will be separated into signal of video signal and voice signal via demultplexer 23 through the broadcast singal of demodulation again, then it be exported.Then, again the signal of video signal of above-mentioned separation is approved via image processor 24, and it is carried out signal of video signal handle.Simultaneously, the voice signal of above-mentioned separation is handled by the acoustic processing/output equipment (not indicating on the figure) of regulation, then, it is exported.In addition, will approve by image output device 25, and then, convert thereof into again and can listen to the signal watched and export to the user through the signal of video signal that above-mentioned image processor 24 carries out after the image processing.
Below, with reference to Fig. 3 to Fig. 6 foundation channel conversion method of the present invention is described in more details.
At first, Fig. 3 is the schematic diagram that expression describes the embodiment according to channel conversion method of the present invention.As shown in Figure 3:
S300,310 distinguishes the receiving channels of receiving broadcast signal according to the identical channel of main designation, then it is categorized as different channel groups.Then, the order that sorted each channel group's up/down is regulated determines.
Whether S320 through after the above-mentioned S310 step, has imported the situation of the instruction that request changes channel and has judged that if request is not changed channel, flow process finishes by 26 couples of users of control device.
Whether S330 then, according to above-mentioned S320 judged result, has exported the instruction that request is changed channel if judge the user, be that the situation of upwards (Up)/downwards (Down) instruction of regulating is judged to the instruction imported then.
S340, then, according to above-mentioned S330 judged result, if the instruction of user's input is the instruction that upwards (Up)/downward (Down) regulates, then according to upwards the direction and the basis of (Up)/downwards (Down) have determined that upwards the order of (Up)/downwards (Down) makes progress (Up)/adjusting of (Down) downwards to the channel group.Then, from through selecting a channel in the channel group after the adjusting of upwards (Up)/downwards (Down), then current channel is converted to selected channel, flow process finishes.
S350, on the other hand, according to above-mentioned S330 judged result, if user institute input instruction is not the upwards instruction of (Up)/downwards (Down) adjusting.Whether be that the situation of the instruction regulated of (Left)/to the right (Right) is left judged then to instruction that the user imported, if the instruction that not have (Left)/to the right (Right) left to regulate, the flow process end.
S360, then, according to above-mentioned S350 judged result, under the situation of the user input instruction regulated of (Left)/to the right (Right) left, in the channel group's of current selection channel according to the instruction of user's input, to the channel that will regulate left (Left)/to the right (Right) regulate, flow process finishes.
That is to say that for the foundation embodiments of the invention, for example: as shown in Figure 4, (Fig. 4 is that expression is a plurality of channel groups according to the channel with identical main designation with above-mentioned channel classification here.Then, according to above-mentioned classification situation, to an instance graph that embodiment shows of the channel conversion method of converted channel.Wherein, symbol 40,41,42,43,44 are meant and the corresponding channel group of each main designation.In addition, channel 6-0 number, 7-0 number, 9-0 number, 11-0 number, 13-0 number is the expression analog channel, and channel in addition is exactly a digital channel.More than these situations supposition users receive the channel information that broadcasting office provides and understood in advance by each broadcast signal receiver by receiving broadcast signal.If) now the user watching the broadcasting of 9-0 analog channel.If the user selects instruction that (Right) to the right regulate and relevant instruction key is pressed, so, channel will according to 9-0 → 9-1 → 9-2 → 9-0 → 9-1,,,,,, order change.(in contrast, if the user selects the instruction of (Left) adjusting left and relevant instruction key is pressed, then the conversion of above-mentioned channel will be regulated according to the order opposite with said sequence.) here, after channel 9-2 number, preferably whether channel is changed again for the situation of 9-0 channel and confirmed.In addition, under the state of 9-0 channel,, and current channel is moved to the 9-1 channel from the 9-0 channel if import the instruction of (Right) adjusting to the right.In this case, above-mentioned 9-1 channel is a broadcast channel just.Therefore, the broadcast singal of conversion equipment 22 after will carrying out tuning/demodulation process through above-mentioned digital tuning/demodulating equipment 21 under the control of control device 26 selected, and then it is exported.
In addition, if the user has selected the instruction of downward adjusting and relevant instruction key has been pressed, so, the channel group of No. 42 indications of symbol under the current 9-0 channel of watching of user will carry out channel switch according to following order, promptly according to No. 11 channel groups 43 of main designation → main No. 13 channel groups 44 of designation → main No. 6 channel groups 40 of designation → main No. 7 channel groups 41 of designation → main No. 9 channel groups 42 of designation,,,,,, order carry out channel group's conversion.Here, through when above-mentioned each channel group carries out channel switch, all can according to a channel of in its each channel group's channel, selecting (for example: 6-0,7-0,9-0,11-0 13-0) changes.
Below, have a look situation according to the another one embodiment of channel conversion method of the present invention.As shown in Figure 5:
S500,510 divides into analog channel and digital channel with the receiving channels of broadcast singal, then, the digital channel after distinguishing is distinguished according to the identical channel of main designation again.Then, it is categorized as different channel groups again.Then, the order of more sorted analog channel and digital channel group's up/down being regulated determines.
Whether S520 with through after the above-mentioned S510 step, has then imported request by 26 couples of users of control device and the situation that channel carries out the instruction of conversion has been judged if request is not changed channel, flow process finishes.
Whether S530 then, according to above-mentioned S520 judged result, if judge that the user has imported request channel is carried out the instruction of conversion, is that the situation of upwards (Up)/downwards (Down) instruction of regulating is judged to its instruction of importing then.
S540, according to above-mentioned S530 judged result, when judging the instruction that instruction that the user imported is regulated for upwards (Up)/downwards (Down), then the order of regulating according to the direction of upwards (Up)/downwards (Down) and according to upwards (Up)/downwards (Down) that set to analog channel or digital channel group upwards (Up)/downwards (Down) regulate.Then, when by the digital channel group to channel make progress (Up)/during the adjusting of (Down) downwards, just in the digital channel group of current selection, select a channel, then current channel is converted to selected channel, the flow process end.
S550, on the other hand, according to above-mentioned S530 judged result, if user institute input instruction is not the upwards instruction of (Up)/downwards (Down) adjusting.Whether be that the situation of the instruction regulated of (Left)/to the right (Right) is left judged then to instruction that the user imported, if the instruction that not have (Left)/to the right (Right) left to regulate, the flow process end.
S560, then, according to above-mentioned S550 judged result, under the situation of the user input instruction regulated of (Left)/to the right (Right) left, in the channel group's of current selection channel according to the instruction of user's input, to the channel that will regulate left (Left)/to the right (Right) regulate, flow process finishes.
Like this, for the another one embodiment according to channel conversion method of the present invention, for example: as shown in Figure 6, (here, the receiving channels with broadcast singal is categorized as analog broadcast channel and radio channel data.Then, will be a plurality of channel groups according to the identical channel classification of main designation through the broadcast channel of above-mentioned classification again.Then, show according to the channel conversion method of above-mentioned classification situation converted channel.Here, for just no longer describing, this partial content has been dispensed for the convenience that illustrates with corresponding to partial content shown in Figure 5.) for 6-0 number and 7-0 channel, the analog channel that its each symbol is meant for No. 60 and No. 61.In addition channel then belongs to the digital channel in the digital channel group 62,63,64.Above-mentioned digital channel group the 62,63, the 64th classifies according to the main identical channel categories of designation in the digital channel.
If the current broadcasting of watching the 6-1 channel of user, so, if the user selects the instruction of (Right) adjusting to the right and relevant instruction key is pressed.That is to say, if the user has imported the instruction that (Right) to the right regulates, then channel will according to 6-1 → 6-2 → 6-3 → 6-1,,,,,, order change.If the user selects the instruction of upwards (Up) adjusting and relevant instruction key is pressed.That is to say, if the user has imported the upwards instruction of (Up) adjusting.So, channel will be changed according to following order, promptly according to No. 7 digital channel groups 63 of main designation → main No. 9 digital channel groups of designation 64 → channel designation 6-0 analog channel 60 → channel designation 7-0 analog channel 61 → main No. 6 digital channel groups 62 of designation,,,,,, order carry out channel group's conversion.
For above-mentioned foundation 2 embodiment of the present invention, when between the channel group, carrying out channel adjustment, if the user selected upwards (Up) or downwards (Down) instruction and supress the corresponding instruction key.That is to say, if the user has imported upwards (Up) or the instruction of (Down) adjusting downwards, here only to channel towards channel (the 6-0 channel among the embodiment as previously described according to the some selections of the channel group after the direction of upwards (Up)/downwards (Down) of user's input, 7-0 channel, 9-0 channel etc.) situation that direction is regulated is illustrated.But, in fact be not to regulate towards channel correlation group's specific channel, above-mentioned broadcast signal receiver just designs its working procedure in the process of making in advance.Perhaps the user also can set or be provided with in advance.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.
Claims (5)
1, a kind of channel conversion method is characterized in that being made of following step:
The 1st step is distinguished the receiving channels of receiving broadcast signal according to the identical channel of main designation, thus they are categorized as different channel groups;
Whether the 2nd step through after above-mentioned the 1st step, has been imported the situation of the instruction of request channel alteration and has been judged to the user;
The 3rd step, judged result according to above-mentioned the 2nd step, if being the request up/down of input, above-mentioned inputting channel alteration command carries out the instruction of channel alteration, then the channel group is selected and the channel up/down is regulated according to the order of up/down, then, from through above-mentioned to the channel group select and the channel up/down regulated after the channel group in channel of selection;
The 4th step, judged result according to above-mentioned the 2nd step, if being the request left/right of input, above-mentioned inputting channel alteration command carries out the instruction of channel alteration, then from the channel group's of current selection channel, channel is selected and the channel left/right is regulated, then, from through above-mentioned to the channel group select and the channel left/right regulated after the channel group in channel of selection.
2, channel conversion method as claimed in claim 1 is characterized in that:
The order that the channel group's of described the 1st step up/down is regulated is to regulate successively according to the order of the main designation of described channel.
3, a kind of channel conversion method is characterized in that being made of following step:
The 1st step, the receiving channels of receiving broadcast signal is classified it according to analog channel and digital channel, then, again above-mentioned digital channel is distinguished according to the identical channel of main designation, thus they are categorized as different channel groups, then, the order that sorted analog channel and digital channel group's up/down is regulated determines;
Whether the 2nd step through after above-mentioned the 1st step, has been imported the situation of the instruction of request channel alteration and has been judged to the user;
The 3rd step, judged result according to above-mentioned the 2nd step, if being the request up/down of input, above-mentioned inputting channel alteration command carries out the instruction of channel alteration, then analog channel or digital channel group are selected and the channel up/down is regulated according to the order of up/down, then, from through above-mentioned to the digital channel group select and the channel up/down regulated after the channel group in channel of selection;
The 4th step, judged result according to above-mentioned the 2nd step, if being the request left/right of input, above-mentioned inputting channel alteration command carries out the instruction of channel alteration, simultaneously, if the current channel of seeing belongs to the channel among the digital channel group, then from the digital channel group's of current selection channel, channel is selected and the channel left/right is regulated, then, from through above-mentioned to the channel group select and the channel left/right regulated after the channel group in channel of selection.
4, channel conversion method as claimed in claim 3 is characterized in that:
The order that the analog channel of described the 1st step and digital channel group's up/down is regulated is: at first, analog channel is determined its order according to the order of channel designation, then, the digital channel group is determined its order according to the order of main designation.
5, as claim 1 or 3 described channel conversion methods, it is characterized in that:
Some channels of selecting from described channel mass selection are that expression the fastest channel of order conversion speed according to its less important designation from the channel correlation group is selected.
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| CNB2005100292335A CN100444625C (en) | 2005-08-31 | 2005-08-31 | Channel switching method |
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| CNB2005100292335A CN100444625C (en) | 2005-08-31 | 2005-08-31 | Channel switching method |
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| CN1925581A true CN1925581A (en) | 2007-03-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011023063A1 (en) * | 2009-08-25 | 2011-03-03 | 中兴通讯股份有限公司 | Method and system for reducing time delay of internet protocol television (iptv) channel switching |
| CN101584207B (en) * | 2007-10-23 | 2011-08-03 | Lg电子株式会社 | Apparatus and method for displaying electronic program guide |
| CN102547437A (en) * | 2010-12-27 | 2012-07-04 | 深圳市乐通天下科技有限公司 | Method for controlling playing of video classification information |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6137539A (en) * | 1998-10-09 | 2000-10-24 | Matshushita Electric Industrial Co, Ltd | Digital television status display |
| JP2004179928A (en) * | 2002-11-27 | 2004-06-24 | Hitachi Ltd | Digital broadcasting receiver, receiving method and receiving circuit |
| CN1207899C (en) * | 2003-06-02 | 2005-06-22 | 海信集团有限公司 | Changeable tabulation typed high-speed method for searching TV stations in full range |
| JP2005167951A (en) * | 2003-12-01 | 2005-06-23 | Hidenori Kakeya | Tv remote control device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101584207B (en) * | 2007-10-23 | 2011-08-03 | Lg电子株式会社 | Apparatus and method for displaying electronic program guide |
| WO2011023063A1 (en) * | 2009-08-25 | 2011-03-03 | 中兴通讯股份有限公司 | Method and system for reducing time delay of internet protocol television (iptv) channel switching |
| CN101656872B (en) * | 2009-08-25 | 2011-07-20 | 中兴通讯股份有限公司 | Method and system for reducing time delay of switching channels of network TV |
| US8677439B2 (en) | 2009-08-25 | 2014-03-18 | Zte Corporation | Method and system for reducing channel switching delay of an IPTV |
| CN102547437A (en) * | 2010-12-27 | 2012-07-04 | 深圳市乐通天下科技有限公司 | Method for controlling playing of video classification information |
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