JPS5535508A - Bright line erasing signal generating circuit at channel switch-over time - Google Patents
Bright line erasing signal generating circuit at channel switch-over timeInfo
- Publication number
- JPS5535508A JPS5535508A JP10813878A JP10813878A JPS5535508A JP S5535508 A JPS5535508 A JP S5535508A JP 10813878 A JP10813878 A JP 10813878A JP 10813878 A JP10813878 A JP 10813878A JP S5535508 A JPS5535508 A JP S5535508A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- bright line
- flop
- flip
- fly
- 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
Abstract
PURPOSE: To switch over the contents of a picture extremely clearly at channel switch-over time causing operation start and termination of bright line erasing in the middle of channel change-over to coincide with a fly-back time of a vertical deflection circuit.
CONSTITUTION: When a detection signal a that a station select button was pushed respectively and a vertical fly-back pulse b are applied from terminals 1, 2, a flip- flop 2 is set by the signal a, and a monostable multibivrator 5 rises up synchronized with the vertical fly-back pulse b to issue an output signal e. At the same time, the flip-flop 3 is reset. By fall of the signal e, a flip-flop 6 is set, and reset by the first vertical fly-back pulse after that. A logical sum output h of the signal e and the output f of the flip-flop 6 being what synchronized with the vertical fly-back pulse b, this output h is used as the bright line erasing signal. Also, station select operation is implemented between time t1 and t2.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10813878A JPS5535508A (en) | 1978-09-05 | 1978-09-05 | Bright line erasing signal generating circuit at channel switch-over time |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10813878A JPS5535508A (en) | 1978-09-05 | 1978-09-05 | Bright line erasing signal generating circuit at channel switch-over time |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5535508A true JPS5535508A (en) | 1980-03-12 |
Family
ID=14476891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10813878A Pending JPS5535508A (en) | 1978-09-05 | 1978-09-05 | Bright line erasing signal generating circuit at channel switch-over time |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5535508A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59153387A (en) * | 1983-02-21 | 1984-09-01 | Sony Corp | Channel selecting circuit |
JPH04176277A (en) * | 1990-11-09 | 1992-06-23 | Matsushita Electric Ind Co Ltd | Picture mute circuit |
-
1978
- 1978-09-05 JP JP10813878A patent/JPS5535508A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59153387A (en) * | 1983-02-21 | 1984-09-01 | Sony Corp | Channel selecting circuit |
JPH04176277A (en) * | 1990-11-09 | 1992-06-23 | Matsushita Electric Ind Co Ltd | Picture mute circuit |
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