CN101110923A - Method and apparatus for supplementing channel information - Google Patents
Method and apparatus for supplementing channel information Download PDFInfo
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- CN101110923A CN101110923A CNA2007101390315A CN200710139031A CN101110923A CN 101110923 A CN101110923 A CN 101110923A CN A2007101390315 A CNA2007101390315 A CN A2007101390315A CN 200710139031 A CN200710139031 A CN 200710139031A CN 101110923 A CN101110923 A CN 101110923A
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- channel
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- channel information
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Abstract
A channel list indicates a channel subset of a sequence of candidate channel locations. The channel list is stored in an electronic apparatus that receives and processes multimedia programs carries by channels in the channel subset. Instead of scanning every candidate channel location, the electronic apparatus partially scans the sequence of the channel locations by skipping channel locations of the channel subset. In addition, full channel scanning as well as validity check for the channel subset is applicable for updating the channel list.
Description
Technical field
The present invention is relevant for a kind of scan method and electronic installation, and is particularly to a kind of method and electronic installation that is used in the additional channel information of multimedia channels such as TV.
Background technology
Fig. 1 shows the flow chart of steps of traditional full range scan method of the embodiment of the invention.
When initialization, reset (Reset) channel table (Channel List) (step S11), for example, the channel table in the memory of TV is removed.Then, calculate each candidate channel position (step S12).Common a fixed range or side-play amount (Offset) at interval between the candidate channel position.After confirming first channel, can calculate the next position easily to judge whether have an effective channel at this next position.If there is not effective channel in this next position, then increase a certain distance or side-play amount to calculate the next position again.Then, judge whether the channel (step S13) of each locational calculating gained of lockable, it is in order to confirm whether the channel that calculates at present comprises effective content.If channel can't lock, then get back to step S12, obtain the succeeding channel position to continue scanning.
If channel can lock, then capture TV signal (step S14) that should channel, resolve TV signal (step S15), and the channel information of this channel is stored in the channel table of memory (step S16).Then, judge whether channel finishes scanning (step S17).If, then show all channels (step S18), carry out another full range scan operation otherwise get back to step S11.
When television receiver moved, then need carry out channel scanning once more, so that the user to be provided effective channel table.Sometimes, even television receiver was not moved, effectively channel still can change.For example, some channel only provides TV programme at special time (morning or evening).Sometimes, the particular surroundings of the particular transmission path between television receiver and television broadcasting device may change, and influences effective channel of television receiver.Through overtesting, find because transmission path is bigger in the load of peak hour, so television receiver can't receive some channel.Therefore, television receiver must allow channel table keep renewal, makes the user can watch all effective channels.
Summary of the invention
Therefore, the invention provides a kind of addition type channel scan method, it can be used for multimedia processing electronic installations such as a DTV receiver, and in order to the channel that scanning is lost or do not obtained as yet, the channel that exists does not then scan.
Based on above-mentioned purpose, the embodiment of the invention has disclosed a kind of method of additional channel information, it is applicable to augments a channel table that is stored in the electronic installation, the multimedia programming that this electronic installation is play in order to the channel in the subset of channels (Channel Subset) that receives and handle a succession of candidate's channel position (Candidate Channel Location), this subset of channels is expressed as this channel table.This method comprises and skips over this subset of channels and part scanning (Partially Scanning) these candidate's channel positions, and judge whether at least one candidate channel position that does not before find and have the broadcast program content is arranged during this part scanning step.If then will be somebody's turn to do the candidate channel position that does not before find and join this channel table to upgrade this channel table.
The embodiment of the invention has more disclosed a kind of electronic installation of additional channel information, the multimedia programming that it is play in order to the channel in the subset of channels that receives and handle a succession of candidate's channel position, and this subset of channels is expressed as this channel table.This electronic installation comprises a tuner (tuner), a memory and a processor.This tuner is used for the information of an appointment channel position in order to reception.This memory is in order to store this channel table.This processor is in order to control this tuner and skip over this subset of channels and part scans these candidate's channel positions, whether judgement has at least one candidate channel position that does not before find and have the broadcast program content during this part scanning step, and, if then will be somebody's turn to do the candidate channel position that does not before find and join this channel table to upgrade this channel table.
Description of drawings
Fig. 1 shows the flow chart of steps of traditional full range scan method of the embodiment of the invention.
Fig. 2 A shows the schematic diagram of full range scanning.
Fig. 2 B shows the schematic diagram of the scanning result of full range scanning.
The schematic diagram of Fig. 2 C display part scanning.
The schematic diagram of the scanning result of Fig. 2 D display part scanning.
Fig. 3 shows the flow chart of steps of method of the additional channel information of the embodiment of the invention.
Fig. 4 shows the configuration diagram of electronic installation of the additional channel information of the embodiment of the invention.
Drawing reference numeral:
400～electronic installation
410～tuner
420～controller
430～memory
440～interpreter
450～decoder
460～display unit
Embodiment
For allow purpose of the present invention, feature, and advantage can become apparent, preferred embodiment cited below particularly, and conjunction with figs. Fig. 2 A to Fig. 4 are described in detail.Specification of the present invention provides different embodiment that the technical characterictic of the different execution modes of the present invention is described.Wherein, the usefulness that is configured to explanation of each element among the embodiment is not in order to restriction the present invention.And the part of reference numerals repeats among the embodiment, is for the purpose of simplifying the description, is not the relevance that means between the different embodiment.
The embodiment of the invention has disclosed a kind of method and electronic installation of additional channel information.
In a preferred embodiment, the TV programme that the channel in the subset of channels of television receiver reception and a succession of candidate's channel position of processing is play.Fig. 2 A shows the schematic diagram of full range scanning, and it shows a series of candidate's channel position.Node 202 is represented the corresponding frequency domain position (Frequency Domain Location) of playing the channel of TV programme respectively with each node of 204, that is the position on the frequency space.In actual applications, be not that each channel all has the broadcast TV programme constantly at each.When the user opened television receiver, this television receiver was carried out full range scanning to a series of candidate channel position earlier, and its flow process as shown in Figure 1.Fig. 2 B shows the schematic diagram of the scanning result of full range scanning.Node 202,203,204,205,206 forms a channel table, and the effective programme content that can play of each node carrying, and the device of televising stores this channel table.
Most television receiver all only is equipped with a tuner, and it spends many times in full range scanning.When if effectively channel changes, it is very inefficent all carrying out full range scanning at every turn.Yet, if do not carry out full range scanning, can't the continuous updating channel table, and can't provide all effective channels to select for the user.
Therefore, in a preferred embodiment, except full range scanning, also operating part scanning of television receiver.In part scanning, tv processor skips over the candidate channel position of already present effective channel according to channel table, and only scanning is found and can play the channel of effective programme content.The schematic diagram of Fig. 2 C display part scanning, it skips over node 202,203,204,205,206.After operating part scanning, node 207,208 is the previous not found and position that can play effective programme content, and the channel of corresponding node 207,208 is added to upgrade channel table, shown in Fig. 2 D.
For the operation that makes television receiver more meets different demands, related setting can be provided, with decision carry out full range scanning when and when operating part scanning, and this setting can change according to user's demand.For example, can utilize a remote manipulator to change sweep time.Set with channel table and can be stored in the dissimilar memories according to the different designs demand, for example, dynamic random access memory (Dynamic Random Access Memory, DRAM), synchronous dynamic random access memory (SynchronousDynamic Random Access Memory, SDRAM), double transfer of data random access memory (Double Data Rate Random Access Memory, DDR RAM), flash memory (FlashMemory), but electronic type clear program read-only memory (Electrically ErasableProgrammable Read Only Memory, EEPROM), hard disk ... or the like.
Same, set and can different data structures design with channel table.For example, channel table can come practical application by a chained list (Link List), array (Array) or concordance list (Index Table).If two adjacent channels are separated by with a fixed range, then this fixed range is added to the position of current scanline, to calculate next scanning position.Except the television receiver design, another preferred embodiment is applied to a wireless receiver (Radio Receiver) with this part scanning, with effective channel table of safeguarding.For example, digital radio broadcast (Digital Radio Broadcasting) also has a series of channel, and is not that each channel all has the broadcast TV programme constantly at each.
Fig. 3 shows the flow chart of steps of method of the additional channel information of the embodiment of the invention.
At first, set up an initial channel table and be stored in the memory, this initial channel table may not comprise any channel information.This initial channel table represents to carry the known channel position of effective programme content.Then, skip over the candidate channel position of having known, and select not that the channel position in this channel table scans (step S31) according to this channel table.
Then, judge whether the channel position of this selection can lock (step S32), promptly whether carries effective programme content.If the channel position of this selection can't lock, then get back to step S31, do not scan the succeeding channel position in this channel table according to this channel table selection.If the channel position of this selection can lock, then capture TV signal (step S33) that should channel, resolve TV signal (step S34), and the channel information of this channel is stored in memory to upgrade this channel table (step S35).Then, judge whether to have scanned all candidate channel positions (step S36).If swept, then show all channels (step S37) in this channel table, otherwise get back to step S31, do not scan the succeeding channel position in this channel table according to this channel table selection.
Fig. 4 shows the configuration diagram of electronic installation of the additional channel information of the embodiment of the invention.This electronic installation for box on the TV of supporting part scanning or the machine (Set Top Box, STB).
Then, controller 420 is this candidate channel table and this channel table relatively, need to judge whether operating part scanning.If want operating part scanning, then set or other condition, calculate the channel of needs scanning, and judge whether lockable of this calculating gained channel according to comparative result based on the user, that is Executive is capable effectively checks (validity check), has judged whether this position is loaded with effective channel.If this channel can't lock, then controller 420 more makes the TV signal that tuner 410 receives from the television system supplier, to calculate the succeeding channel that is not stored in this channel table to scan.If this channel lockable, controller 420 acquisitions are to should the channel TV signal, make this TV signal of interpreter 440 deciphers, and the TV signal of 450 pairs of deciphers of decoder is decoded, to be presented at display unit 460.In addition, upgrading this channel table, and it is all scanned up to all candidate channels to repeat aforesaid operations in memory 430 for the channel information that controller 420 stores these channels.
On the other hand, said method and device are applicable to the U.S. or European Digital Television, simulated television system, handheld digital video broadcasting (Digital Video Broadcasting Project Handheld, DVB-H) television system or radio (Radio), audio program or digital radio program (Digital RadioProgram).
The present invention also provides a kind of recording medium (for example discs, disk sheet and removable hard drive or the like), and it writes down the authority sign-off program of an embodied on computer readable, so that carry out the method for above-mentioned additional channel information.At this, be stored in the authority sign-off program on the recording medium, basically (for example the setting up organization chart code segment, sign-off forms code segment, setting program code snippet and deployment program code snippet) formed by most code segment, and the function of these code segment corresponds to the step of said method and the functional block diagram of said system.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limiting the present invention, anyly has the knack of this skill person, without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking the claim scope person of defining.
Claims (20)
1. the method for an additional channel information, it is applicable to augments a channel table that is stored in the electronic installation, the multimedia programming that described electronic installation is play in order to the channel in the subset of channels that receives and handle a succession of candidate's channel position, described subset of channels is indicated by described channel table, comprises the following steps:
Skip over described subset of channels and partly scan described these candidate's channel positions;
Whether judgement has at least one candidate channel position that does not before find and contain effective programme content in above-mentioned part scanning step; And
If then the described candidate channel position that had not before found and contained effective programme content is joined described channel table to upgrade described channel table.
2. the method for additional channel information as claimed in claim 1 is characterized in that, the fixed range of being separated by of two adjacent candidate channel positions in described a succession of candidate channel position.
3. the method for additional channel information as claimed in claim 2 is characterized in that, described these candidate's channel positions are frequency domain position.
4. the method for additional channel information as claimed in claim 3 is characterized in that, described part scanning step also comprises the following steps:
Increase described fixed range to current scanline position to calculate next candidate's channel position; And
Judge whether described next candidate's channel position has been present in the described channel table.
5. the method for additional channel information as claimed in claim 3 is characterized in that, described part scanning step comprises that also the described channel table of direct inspection is to find out next candidate's channel position.
6. the method for additional channel information as claimed in claim 1, it also comprises carries out full range scanning to scan described a succession of candidate channel position with the described channel table of complete renewal.
7. the method for additional channel information as claimed in claim 6, it comprises also when configuration one setting is carried out described full range scanning and when carried out described part scanning step to judge.
8. the method for additional channel information as claimed in claim 1, it comprises that also described subset of channels is carried out validity to be checked to determine that each project in the described subset of channels plays effective programme content.
9. the method for additional channel information as claimed in claim 1 is characterized in that, described multimedia programming is a TV programme.
10. the method for additional channel information as claimed in claim 1 is characterized in that, described multimedia programming is audio program or digital radio program.
11. the electronic installation of an additional channel information, its in order to receive with a subset of channels of handling a succession of candidate's channel position in the multimedia programming play of channel, and described subset of channels is expressed as described channel table, comprising:
One tuner, it is used for the information of an appointment channel position in order to reception;
One memory, it is in order to store described channel table; And
One processor, it is in order to control described tuner and skip over described subset of channels and part scans described these candidate's channel positions, judgement is in described part scanning step, whether at least one candidate channel position that does not before find and have the broadcast program content is arranged, and, if then the described candidate channel position that does not before find is joined described channel table to upgrade described channel table.
12. the electronic installation of additional channel information as claimed in claim 11 is characterized in that, the fixed range of being separated by of two adjacent candidate channel positions in described a succession of candidate channel position.
13. the electronic installation of additional channel information as claimed in claim 12 is characterized in that, described these candidate's channel positions are frequency domain position.
14. the electronic installation of additional channel information as claimed in claim 13, wherein, when carrying out described part scanning step, described processor also increases described fixed range to current scanline position calculating next candidate's channel position, and judges whether described next candidate's channel position has been present in the described channel table.
15. the electronic installation of additional channel information as claimed in claim 13 is characterized in that, when carrying out described part scanning step, described processor checks directly that also described channel table is to find out next candidate's channel position.
16. the electronic installation of additional channel information as claimed in claim 11, described processor are also controlled described tuner and are carried out full range scanning to scan described a succession of candidate channel position with the described channel table of complete renewal.
17. the electronic installation of additional channel information as claimed in claim 16 is characterized in that, described memory also stores a setting, when carries out described full range scanning and when carries out described part scanning step in order to judge.
18. the electronic installation of additional channel information as claimed in claim 11, described processor also check with each project in definite described subset of channels described subset of channels execution validity and play effective programme content.
19. the electronic installation of additional channel information as claimed in claim 11 is characterized in that, described multimedia programming is a TV programme.
20. the electronic installation of additional channel information as claimed in claim 11 is characterized in that, described multimedia programming is audio program or digital radio program.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80795706P | 2006-07-21 | 2006-07-21 | |
| US60/807,957 | 2006-07-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101110923A true CN101110923A (en) | 2008-01-23 |
Family
ID=39042788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101390315A Pending CN101110923A (en) | 2006-07-21 | 2007-07-23 | Method and apparatus for supplementing channel information |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101110923A (en) |
| TW (1) | TWI335179B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104661051A (en) * | 2015-03-09 | 2015-05-27 | 深圳市九洲电器有限公司 | Streaming media pushing method and system |
| CN105187943A (en) * | 2015-09-21 | 2015-12-23 | 三星电子（中国）研发中心 | Television channel supplement method and device |
| CN114501124A (en) * | 2020-11-11 | 2022-05-13 | 瑞昱半导体股份有限公司 | Television channel scanning method and television system |
-
2007
- 2007-07-17 TW TW096125978A patent/TWI335179B/en not_active IP Right Cessation
- 2007-07-23 CN CNA2007101390315A patent/CN101110923A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104661051A (en) * | 2015-03-09 | 2015-05-27 | 深圳市九洲电器有限公司 | Streaming media pushing method and system |
| CN105187943A (en) * | 2015-09-21 | 2015-12-23 | 三星电子（中国）研发中心 | Television channel supplement method and device |
| CN105187943B (en) * | 2015-09-21 | 2018-06-15 | 三星电子（中国）研发中心 | Television channel method of adding and device |
| CN114501124A (en) * | 2020-11-11 | 2022-05-13 | 瑞昱半导体股份有限公司 | Television channel scanning method and television system |
| CN114501124B (en) * | 2020-11-11 | 2024-04-12 | 瑞昱半导体股份有限公司 | Television channel scanning method and television system |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200808052A (en) | 2008-02-01 |
| TWI335179B (en) | 2010-12-21 |
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