CN1078083A - The autocontrol method of accurate receiving preselected television programmes - Google Patents
The autocontrol method of accurate receiving preselected television programmes Download PDFInfo
- Publication number
- CN1078083A CN1078083A CN 92102984 CN92102984A CN1078083A CN 1078083 A CN1078083 A CN 1078083A CN 92102984 CN92102984 CN 92102984 CN 92102984 A CN92102984 A CN 92102984A CN 1078083 A CN1078083 A CN 1078083A
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- Prior art keywords
- program
- television programmes
- feature
- broadcast
- autocontrol method
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Television Signal Processing For Recording (AREA)
Abstract
The invention discloses a kind of accurately receiving preselected television programmes autocontrol method, it can make video tape recorder accurately receive the program of admission preliminary election, is not subjected to reproduction time change and influences.Compile a digital number for pre-announce items by TV station, broadcast with pix carrier.The preselected television programmes automatic control equipment receives the admission of preliminary election program and stops record with digital relatively the identification with the reception number of Computer Storage preliminary election program.
Description
The present invention relates to a kind of improved receiving preselected television programmes autocontrol method, particularly a kind of accurately autocontrol method of receiving preselected television programmes.
Existing video tape recorder is equipped with the electronic type clock timer preselected television programmes device that can program, and the preselected television programmes method is earlier to set the channel that will enroll, set the date of carrying out video, the time started and the time of finishing of video again at memory.Video tape recorder regularly starts the channel of admission setting and regularly stops record by clock.If the program of preliminary election does not have punctual the broadcast, video tape recorder is still enrolled by the time of former setting, and timing stops record, the result has influenced and watched.
Task of the present invention is that a kind of improved preselected television programmes autocontrol method will be provided, and program, program that it can make video tape recorder accurately receive the admission preliminary election finish and stop record automatically, not influenced by reproduction time.
Task of the present invention is finished as follows: at first TV station compiles individual 4 figure place sign indicating numbers for each pre-announce items, each issue forecast published.TV station with color primaries simulation numeral, for example redly represent 1, green represents 0, weaves into standard digital, international 2 numbers for example by the rule unification.TV station plays before each program with pix carrier and divides two field scans at each line head delegation or last column number, every frame of broadcasting this program synchronously, so per 1/50 second one-shot has the pix carrier of number.The digital 2 seconds time of broadcast items.After finishing, program uses said method close of transmission symbol again.Because number appears at the edge of screen, again end to end at program, to not influence of picture, spectators note less than.
The TV programme preselector is made up of TV signal receiving circuit and computer two parts.Television reception circuit can be shared with video tape recorder.Computer is made up of digital demodulator, central processing unit, memory.Preliminary election program method is earlier to set the channel that will enroll, set the number of preliminary election program again at memory.But have 25 programs of 25 memory preliminary elections.After set finishing, central processing unit gives instruction, begin by memory order to setting contents of channel circulation receive, each channel time of reception 1/25 second, so the number that TV station sends can not missed.The TV signal of receiving demodulates the color primaries signal after the demodulation of television circuit look, the color primaries signal send into computer digital demodulator, simulation digital number demodulation up to specification is come out.Not having digital picture intelligence is that 4 figure places are formed because of the number of against regulation digital rule and each program, so wrong demodulation can not occur.The memory number that the number that demodulation is come out is corresponding with it compares, if digital same computer output receives instruction, receives this channel, stop each channel circulation is received, video tape recorder is just accurately enrolled the program of preliminary election, when receiving that terminating symbol, computer output stopping record instruction, video tape recorder stop record.The TV programme preselector continues previous channel feature circulation reception.
Owing in TV tech, used digital communication theory, so realized the automatic control of accurate receiving preselected television programmes.Embodiment does not limit the scope of application of the present invention.
Claims (3)
1, a kind of autocontrol method of preselected television programmes, feature of the present invention are that TV station compiles a number, is made up of television reception circuit and computer with pix carrier broadcast number, preselector for each pre-announce items.
2, carry digital its feature of broadcast by color primaries simulation number according to claim 1 with image, broadcast synchronously in each line head delegation or last column.
3, set a previous channel feature and program number according to each memory of its feature of claim 1 preselector, press the circulation of setting contents of channel memory order and receive, look demodulation output color primaries signal connects digital demodulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92102984 CN1078083A (en) | 1992-04-27 | 1992-04-27 | The autocontrol method of accurate receiving preselected television programmes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92102984 CN1078083A (en) | 1992-04-27 | 1992-04-27 | The autocontrol method of accurate receiving preselected television programmes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1078083A true CN1078083A (en) | 1993-11-03 |
Family
ID=4939951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92102984 Pending CN1078083A (en) | 1992-04-27 | 1992-04-27 | The autocontrol method of accurate receiving preselected television programmes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1078083A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055189C (en) * | 1995-05-23 | 2000-08-02 | 日本电气株式会社 | Programme auto-controller |
-
1992
- 1992-04-27 CN CN 92102984 patent/CN1078083A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055189C (en) * | 1995-05-23 | 2000-08-02 | 日本电气株式会社 | Programme auto-controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |