JPS6429186A - Control pulse generating circuit for television receiver - Google Patents
Control pulse generating circuit for television receiverInfo
- Publication number
- JPS6429186A JPS6429186A JP62186242A JP18624287A JPS6429186A JP S6429186 A JPS6429186 A JP S6429186A JP 62186242 A JP62186242 A JP 62186242A JP 18624287 A JP18624287 A JP 18624287A JP S6429186 A JPS6429186 A JP S6429186A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- differentiating
- control pulse
- width
- generating circuit
- 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
Landscapes
- Picture Signal Circuits (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE:To enable a correct control pulse to be generated by differentiating a horizontal flyback pulse and narrowing the pulse width of it. CONSTITUTION:The horizontal flyback pulse is differentiated and a first transition pulse of it is made to be a square wave. By using a last transition pulse obtained by differentiating that pulse, the last transition pulse obtained by differentiating a horizontal synchronizing pulse is gated. That means, as transistors 22 and 23 constitute an NAND gate, the collector of a transistor 26 obtains a wave form (g) which only the common term of the two pulses turn on and this pulse drives a pedestal clamp circuit 27 and a burst gate pulse 28. Thus, even when the width of the last transition pulse obtained by differentiating the horizontal synchronizing pulse is extended by dispersion, the pulse width can be prevented being extended and the correct control pulse can be generated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62186242A JPS6429186A (en) | 1987-07-24 | 1987-07-24 | Control pulse generating circuit for television receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62186242A JPS6429186A (en) | 1987-07-24 | 1987-07-24 | Control pulse generating circuit for television receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6429186A true JPS6429186A (en) | 1989-01-31 |
Family
ID=16184836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62186242A Pending JPS6429186A (en) | 1987-07-24 | 1987-07-24 | Control pulse generating circuit for television receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6429186A (en) |
-
1987
- 1987-07-24 JP JP62186242A patent/JPS6429186A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3381713D1 (en) | METHOD AND DEVICE FOR CONTROLLING ACCESS TO SELECTED TELEVISION PROGRAMS. | |
MY108013A (en) | Apparatus for positioning a timing signal, relative to a synchronization signal, derived in the deflection section of a television system. | |
JPS6429186A (en) | Control pulse generating circuit for television receiver | |
JPS56103581A (en) | Cipher process system of video signal | |
JPS5432923A (en) | Television video signal processing unit | |
JPS56119581A (en) | Clamp circuit | |
GB1119358A (en) | Method for synchronizing color television signals | |
JPS5453823A (en) | Television receiver | |
JPS53126814A (en) | Synchronous pulse reproducing device | |
ES2096594T3 (en) | PROCEDURE FOR PROCESSING A PAL COLOR TELEVISION SIGNAL. | |
JPS5327380A (en) | Modulating circuit for semiconductor laser light | |
JPS5526784A (en) | Video amplifier | |
JPS5483312A (en) | Solid image pickup device | |
JPS5275218A (en) | Picture quality adjusting unit | |
JPS5661874A (en) | Chroma-key signal generating device | |
JPS5318911A (en) | Picture quality control unit for television receiver | |
JPS5363807A (en) | Direct current component regenerator of television receiver | |
JPS5229114A (en) | Synchronous circuit | |
JPS5387103A (en) | Adjustment system for pulse duty | |
JPS5397725A (en) | Television picture receiver possessing waveform display function | |
FR2376581A1 (en) | Pulse generator for TV line frequency control - maintains synchronisation during loss of video signals | |
JPS5442929A (en) | Television picture receiver | |
JPS5422713A (en) | High voltage control circuit | |
JPS5397724A (en) | Television picture receiver possessing waveform display function | |
JPS53116028A (en) | Video receiver |