CN1148960C - Control method of decreasing time delay in setting channel - Google Patents
Control method of decreasing time delay in setting channel Download PDFInfo
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- CN1148960C CN1148960C CNB011417463A CN01141746A CN1148960C CN 1148960 C CN1148960 C CN 1148960C CN B011417463 A CNB011417463 A CN B011417463A CN 01141746 A CN01141746 A CN 01141746A CN 1148960 C CN1148960 C CN 1148960C
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000003247 decreasing effect Effects 0.000 title 1
- 238000012217 deletion Methods 0.000 claims abstract description 33
- 230000037430 deletion Effects 0.000 claims abstract description 33
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 claims description 3
- 239000012467 final product Substances 0.000 description 4
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013497 data interchange Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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Abstract
The present invention relates to a method for reducing time delay when set channels are adjusted and deleted. In the method, station numbers and channel information of programs are separately stored into a program station number index table and a channel information table in an E<2>PROM. When channels are set, only the program station number index table is called out into an RAM of an MCU to be adjusted and deleted, and after the operation of adjustment and deletion is affirmed, the program station number index table is stored in the E<2> PROM. Data exchange quantity is reduced so as to reduce the time delay. The method is suitable for two station searching methods of voltage tuning and frequency tuning, and can be applied to a DVR and a television set.
Description
Technical field
The present invention relates to the control method that a kind of minimizing is provided with the channel time delay, specifically is a kind ofly set channel to be adjusted and during deletion action, reduced the method for time delay.
Background technology
The user is in the use to television set, tend to hobby according to oneself, by changing through searching the set good program channel of platform process, program station number to all channels of receiving is readjusted, be placed in the road, rank ten as likeing best the program of watching, and one to central eight in central authorities are placed on 11 to 18 channels, do very being beneficial to memory and changing platform like this.Television set is after the automatic channel search process is finished in addition, and channel that can duplicate or the weak platform that at all can not watch or harmonic wave platform or useless platform (as encoded channel, the user does not have decipher) need be deleted this user.
A kind of method is to use TV " SKIP " mode, with the shielding of unwanted channel, makes the user when " program+/-" key of remote controller, and the channel that conductively-closed is fallen does not occur.The defective of this mode is that channel is not deleted veritably, and causes discontinuous and user uncomfortable of program station number when using.
In addition, the problem of existence is; Adopt the voltage tuning or the platform mode of searching of frequency tuning no matter be, the user is when the panel button by television set or remote controller are readjusted with deletion action to set channel, exist tangible time delay, because of the operating time long, button reaction is slow, and influences other operation.
Summary of the invention
The purpose of this invention is to provide the control method that a kind of minimizing is provided with the channel time delay, specifically is a kind ofly set channel to be adjusted and during deletion action, reduced the method for time delay.Be suitable for voltage tuning and frequency tuning and search the platform mode for two kinds, can be applicable to digital video (DVR) and television set.
Channel setting before the present invention can by automatic channel search or manually search platform or automatically with manually search platform and combine and finish.
Automatic channel search: from the low-frequency range to the high band, search for one by one automatically, and increase progressively dispense station number automatically from 0 or 1, to determine corresponding program channel.
Manually search platform: by manual search up or down, search adjacent channel automatically and stop, prompting is stored to how many platforms number.
Automatically with manually search platform and combine: utilize automatic channel search earlier, with whole channel search one time, and order assignment platform number, again by manually being provided with, the platform of current channel number can be set to other number, as with number conflict mutually of its platform, then with another number with when foreground number exchange mutually.
Searching after the platform process finishes, set channel all is with platform number and correspondingly determines that the channel information of channel is fixed together, and is stored to E
2PROM, the corresponding fixing platform of the channel information of a certain location storage number.Like this at E
2Platform of being stored in the PROM number and channel information will be called in, accessed, be needed the data volume of exchange big when adjusting with deletion action together, and it is many to take byte, thereby causes operational time delay.
Channel setting of the present invention is meant: to through searching the channel information of the definite program channel of platform process institute, heavily be adjustment, the delete procedure that carries out according to user preferences to program station number.Wherein adjust is that the platform of determining channel number is redistributed; Deletion then be with finish the repetition channel of searching the platform process and being occurred, the weak platform that can't watch, harmonic wave platform, useless platform (as encoded channel, the user does not have decipher) removes.
Because no matter with that a kind of platform mode of searching, after searching platform and finishing, the channel information of all receivable program channels determines, and platform number can change.Therefore can number come channel is provided with by only changing platform.Based on this, design of the present invention: at first with platform number and the channel information of definite channel at E
2Separate storage in the PROM, part storage of channel information (as: frequency dividing ratio (frequency synthesis), DA conversion value (voltage tuning), band information, S-SYSTEM, sound accompaniment standard, AFC control bit, SKIP control bit etc.), another part storage platform number, but each other to instead; Secondly when adjusting with deletion action.Only platform number is changed, adjusted and the time delay of deletion thereby realize reducing.
The object of the present invention is achieved like this: a kind of minimizing is provided with the control method of channel time delay, comprises and searches the platform step: be used for determining program channel by the automatic or manual mode, and initialization platform number; It is characterized in that also comprising the steps:
Storing step: with the channel information of definite channel and platform number at E
2Separate storage in the PROM, and form channel information table and initialized program station number concordance list by the ascending order of frequency respectively;
Transfer step: will be stored in E
2Program station number concordance list among the PROM is called among the RAM of micro controller MCU;
Step is set: in RAM, the program station number concordance list is adjusted and deletion action;
Storing step: after adjusting and deletion action finishes, the program station number concordance list after the affirmation is stored to E again from RAM
2PROM;
Program station number concordance list in the described storing step be used for storing a certain number the channel information of corresponding channel at channel information table position, the i.e. address pointer of channel information;
Described the adjustment of in the step program station number concordance list in the modulated RAM of going into being carried out is set: be the platform that will desire to redistribute number the location pointer of channel information of corresponding channel directly exchange;
Described the deletion of in the step program station number concordance list in the modulated RAM of going into being carried out is set: be with in the program station number concordance list, the address pointer deletion of corresponding number pairing channel information of desire deletion channel maybe will move to the last of program station number concordance list for this corresponding number.
The described setting when adjusting with deletion action to corresponding in the program station number concordance list in the RAM number in the step, with this platform number pairing channel information from E
2Call in RAM among the PROM.
Described searching after the platform step finishes, frequency dividing ratio in the channel information or DA conversion value, S-SYSTEM, sound accompaniment standard pressed default value is unified to be set, the AFC control bit will all be set to effectively, it is invalid that the SKIP control bit that searches out program channel is set to, and the SKIP that does not search out program channel is set to effectively.
The described setting in the step when carrying out deletion action, channel information SKIP control bit is set to open, so that deleted channel recovers.
Technique effect of the present invention is: with platform number and channel information at E
2Separate storage in the PROM makes when channel is provided with, and reduces the exchange capacity of data, thereby improves operating efficiency, saves time.
Description of drawings
The hardware block diagram that Fig. 1 the present invention carries out for software.
Fig. 2 the present invention relates to the flow chart that channel is provided with adjustment process.
Fig. 3 the present invention relates to the flow chart that channel is provided with delete procedure.
Fig. 4 the present invention relates to the flow chart of display interface operation.
Embodiment
Before the present invention, all be that platform number and channel information are fixed together, at E
2The fixing platform of the corresponding initialization of the channel information of a certain location storage of PROM number when channel is set, number is called in, is accessed with channel information because of platform, and the required data volume that exchanges is big, and it is many to take byte, and causes operational time delay.
The method of mobile channel information is feasible in theory, but needs mobile data too many, and storage is at E
2Among the PROM, need pass through I
2The C bus is read and write, and the operation required time is long, will influence other operations.
The time delay of the present invention when realizing reducing adjustment, deletion channel need be with platform number and channel information separate storage, and a part is deposited channel information, and constitutes the channel information table; Another part is deposited platform number, and constitutes the program station number concordance list, is used for storing a certain number corresponding channel information position at the channel information table.
When automatic channel search, with initialization program station number concordance list, and by the channel information of the corresponding channel of frequency sequential storage from small to large.At E
2Form program station number concordance list (1-N, N are maximum channels that television set can receive) in the PROM; Channel information table (1-N, N are maximum channels that television set can receive).
Channel information table institute stored channel information only changes with program standard change back searching platform process (comprise automatic channel search, manually search platform and fine setting).Operations such as adjustment in the channel, deletion platform number are set all no longer to be related to the channel information table is operated.
During automatic channel search, according to band information, the frequency dividing ratio of the ascending sequential storage channel of frequency or add conversion value, S-SYSTEM, sound accompaniment standard and set by default value is unified, the AFC control bit will all be set to effectively, it is invalid that " SKIP " control bit that searches out channel is set to, the channel that does not search out " the SKIP control bit all is set to effectively.When manually searching platform, only current program station number is operated, operated in E
2Carry out among the RAM of PROM (when the channel information data of foreground correspondence when start or channel switch by E
2PROM calls among the RAM), after change is confirmed, according to the program station number concordance list find this number the position of corresponding channel information in the channel information table, the new data that will confirm in RAM writes E
2Among the PROM.
If do not want after the change to preserve, can cancel, at this moment, will be from E
2The channel information of reading among the PROM when the foreground correspondence is written among the RAM again, and according to current demonstration of this Data Update and sound accompaniment output.Similar to fine setting, program standard when change during to the change operation of channel information and automatic channel search.
The program station number concordance list is used for storing a certain number corresponding channel information in the position of channel information, is equivalent to the address pointer of channel information, only initialization behind automatic channel search.After the initialization, platform number 1 pairing channel information is 1 channel information in the channel information table, and the pairing channel information of platform N is the N channel information in the channel information table.
When adjusting channel, only need exchange the position indicator pointer of corresponding number correspondence in the program station number concordance list and get final product; The deletion channel then only needs the deletion of the position indicator pointer in this platform number corresponding program station number concordance list, and will all position indicator pointers thereafter moves in proper order and get final product; Also can not delete this position indicator pointer, the SKIP control bit that it moves on in the last and corresponding channel of program station number concordance list is opened (can make by the channel that does not remove like this and recover again).
For the channel adjustment, exchange once the data interchange that platform number only need carry out two byte, simplified much compared with channel information is exchanged, need the data volume of exchange also to reduce.For channel deletion, the data volume that need move by the mode of revising the program station number concordance list has reduced 3-4 doubly (channel information of a Dui Ying channel is generally 3-4 byte therewith) than the data volume that the method for mobile channel information need move.
When start, the program station number concordance list is promptly by E
2The PROM reflection is in RAM, and adjustment and deletion action are all carried out in the RAM of MCU earlier, after operations such as channel adjustment, deletion are finished and confirmed, again the program station number rope table among the RAM are duplicated back E
2Among the PROM.If after selecting cancellation under the situation that operations such as channel adjustment, deletion are arranged, will be again E
2Program station number concordance list reflection among the PROM because data manipulation speed is very fast among the RAM, can be ignored its operating time in RAM, so only need carry out the I of N byte
2The write operation of a C read operation or N byte (N is maximum channels that television set can receive), it is very short to operate the used time, can not feel to have tangible time delay when the user operates.
Adopt the present invention directly can realize setting (comprise and adjusting and deletion) easily, can avoid the existing defective of common channel setting method simultaneously channel by revising the program station number concordance list.Illustrate as follows:
In when start, MCU with whole program platform concordance list from E
2Read in fully among the PROM among the RAM, channel information is then only read in pairing channel information current number, to save the RAM resource among the MCU.When the user to channel adjust, when deleting, the program station number concordance list is operated by user's setting in the time of in RAM, to E
2Program station number concordance list among the PROM need not be operated, and after setting was finished, the user had two kinds of selections: confirm to set effectively, MCU will be the program station number index table stores after setting among the RAM to E
2PROM is to replace old program station number concordance list; It is invalid to confirm to set, and MCU will be from E
2Again the program station number concordance list that reads back old among the PROM is to replace user's setting.Finally being operating as of described process through I
2Read operation that C carries out or write operation.Particularly after the deletion of a certain channel, thereafter platform moves on number automatically on the program station number concordance list, and platform number is kept continuously, do not produce usefulness " SKIP " mode and the platform that causes number discontinuous and use uncomfortable.
Press frequency sequential storage channel information from small to large behind the automatic channel search, after searching platform and finishing, the channel of finding certain two program station number is identical, only needing to preserve one gets final product, the user can get final product one of channel deletion on the channel setup menu, the channel of back is automatically adjusted, and handles being actually that the platform concordance list finishes by revising according to method of the present invention.Be modified among the RAM and carry out, just write E after the affirmation
2PROM.
When two channels were adjusted, the program that the user only needs to show according to background frame in the channel setup menu was adjusted new and old number, can finish the channel setting easily, handled in fact also and finished by revising the platform concordance list.Revise and also in RAM, carry out, after confirming, just write E
2PROM.Can in the program station number concordance list, do to insert operation according to user's hobby in addition.
Subprogram among Fig. 4 is the flow chart of corresponding diagram 2, Fig. 3 respectively, when entering program station number, the user adjusts menu, about can passing through, right and left key selects, when the user chose a certain current program station number, screen automatically switched to the pairing program channel of current program station number, when needing to adjust, can finish by the direct input of numerical key, this process is carried out in RAM, after the affirmation, is stored in E
2PROM.
Claims (4)
1, a kind of minimizing is provided with the control method of channel time delay, comprises and searches the platform step: be used for determining program channel by the automatic or manual mode, and initialization platform number; It is characterized in that also comprising the steps:
Storing step: with the channel information of definite channel and platform number at E
2Separate storage in the PROM, and form channel information table and initialized program station number concordance list by the ascending order of frequency respectively;
Transfer step: will be stored in E
2Program station number concordance list among the PROM is called among the RAM of microcontroller MCU;
Step is set: in RAM, the program station number concordance list is adjusted and deletion action;
Storing step: after adjusting and deletion action finishes, the program station number concordance list after the affirmation is stored to E again from RAM
2PROM;
Program station number concordance list in the described storing step be used for storing a certain number the channel information of corresponding channel at channel information table position, the i.e. address pointer of channel information;
Described the adjustment of in the step program station number concordance list in the modulated RAM of going into being carried out is set: be the platform that will desire to redistribute number the location pointer of channel information of corresponding channel directly exchange;
The described setting in the step: be with in the program station number concordance list to the deletion that red-letter day, the platform concordance list was carried out in the modulated RAM of going into, the address pointer deletion of corresponding number pairing channel information of desire deletion channel maybe will move to the last of a program station number concordance list for this corresponding number.
2, minimizing as claimed in claim 1 is provided with the control method of channel time delay, it is characterized in that described the setting in the step the program platform in the RAM when in concordance list corresponding number adjusted with deletion action, with this platform number pairing channel information from E
2Call in RAM among the PROM.
3, minimizing as claimed in claim 1 is provided with the control method of channel time delay, it is characterized in that described searching after the platform step finishes, frequency dividing ratio in the channel information or DA conversion value, S-SYSTEM, sound accompaniment standard pressed default value is unified to be set, the AFC control bit will all be set to effectively, it is invalid that the SKIP control bit that searches out program channel is set to, and the SKIP that does not search out program channel is set to effectively.
4, minimizing as claimed in claim 1 is provided with the control method of channel time delay, it is characterized in that described the setting in the step when carrying out deletion action, and channel information SKIP control bit is set to open, so that deleted channel recovers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011417463A CN1148960C (en) | 2001-09-17 | 2001-09-17 | Control method of decreasing time delay in setting channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011417463A CN1148960C (en) | 2001-09-17 | 2001-09-17 | Control method of decreasing time delay in setting channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1358025A CN1358025A (en) | 2002-07-10 |
| CN1148960C true CN1148960C (en) | 2004-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011417463A Expired - Fee Related CN1148960C (en) | 2001-09-17 | 2001-09-17 | Control method of decreasing time delay in setting channel |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100474453B1 (en) * | 2002-10-01 | 2005-03-10 | 삼성전자주식회사 | Image displayer easy to set channel |
| CN100355283C (en) * | 2005-07-21 | 2007-12-12 | 上海交通大学 | Television channel delivering method of network based on channel switch and rating |
| CN101047818B (en) * | 2006-03-28 | 2013-06-12 | 友达光电股份有限公司 | Band allocation data symmetric adjustment system and method |
| CN103517132B (en) * | 2013-09-27 | 2017-02-08 | 天脉聚源(北京)传媒科技有限公司 | Program list setting method and device |
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2001
- 2001-09-17 CN CNB011417463A patent/CN1148960C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1358025A (en) | 2002-07-10 |
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