JPS5631279A - Automatic preset channel selecting circuit of color television receiver - Google Patents
Automatic preset channel selecting circuit of color television receiverInfo
- Publication number
- JPS5631279A JPS5631279A JP10725679A JP10725679A JPS5631279A JP S5631279 A JPS5631279 A JP S5631279A JP 10725679 A JP10725679 A JP 10725679A JP 10725679 A JP10725679 A JP 10725679A JP S5631279 A JPS5631279 A JP S5631279A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- video
- switch
- output
- channel selecting
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/70—Circuits for processing colour signals for colour killing
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
Abstract
PURPOSE:To prevent a generated spurious from being decided as a regular video carrier erroneously, by interrupting the synchronizing separation signal and the horizontal fly-back pulse signal by the color killer signal. CONSTITUTION:In case that the preset button is depressed, the tuning voltage applied to tuner 2 is changed to start sweep of the receiving frequency, and sweep of the receiving frequency is stopped when tuner 2 receives the color television broadcast signal. In this automatic preset automatic channel selecting unit, it is decided by color killer signal deciding circuit 62 whether video.chroma amplifying circuit 5 has detected the burst signal in the composite video signal which is the output signal of video detector 4 or not; and if video.chroma amplifying circuit 5 has detected the burst signal, a signal to make switch 61 close is output to switch 61; and if not, a signal to make switch 61 open is output to switch 61.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10725679A JPS5631279A (en) | 1979-08-24 | 1979-08-24 | Automatic preset channel selecting circuit of color television receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10725679A JPS5631279A (en) | 1979-08-24 | 1979-08-24 | Automatic preset channel selecting circuit of color television receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5631279A true JPS5631279A (en) | 1981-03-30 |
Family
ID=14454433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10725679A Pending JPS5631279A (en) | 1979-08-24 | 1979-08-24 | Automatic preset channel selecting circuit of color television receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5631279A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS645899A (en) * | 1987-06-29 | 1989-01-10 | Tsukioka Hakuou Kk | Manufacture of decorating |
-
1979
- 1979-08-24 JP JP10725679A patent/JPS5631279A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS645899A (en) * | 1987-06-29 | 1989-01-10 | Tsukioka Hakuou Kk | Manufacture of decorating |
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