JPS5496918A - Clamping system - Google Patents
Clamping systemInfo
- Publication number
- JPS5496918A JPS5496918A JP333878A JP333878A JPS5496918A JP S5496918 A JPS5496918 A JP S5496918A JP 333878 A JP333878 A JP 333878A JP 333878 A JP333878 A JP 333878A JP S5496918 A JPS5496918 A JP S5496918A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- clamping
- vertical
- video signal
- signal
- 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 apply the steady pedestal clamp to the video signal which is affected by the ghost fault by deciding the clamping period through the synchronization secured by the vertical synchronous signal when the clamping is given is the vertical flyback time of the video signal.
CONSTITUTION: The video signal supplied through input terminal 1 is isolated through synchronization isolater circuit 7, and the isolated horizontal synchronous signal 9 is applied to gate pulse generator circuit 12. At the same time, the isolated composite synchronous signal 8 is separated via vertical synchronization isolator circuit 10 to obtain vertical synchronous signal 11. Signal 11 is then applied to circuit 12 to reset the counter of circuit 12. At the area where the clamping is carried out by the output of circuit 12 and for the vertical flyback time, switch 5 is closed, and the clamping time is decided for the video signal sent from terminal 1. Then the output to which the steady pedestal clamping is applied via buffer amplifier 3 is delivered to output terminal 14.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP333878A JPS5496918A (en) | 1978-01-18 | 1978-01-18 | Clamping system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP333878A JPS5496918A (en) | 1978-01-18 | 1978-01-18 | Clamping system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5496918A true JPS5496918A (en) | 1979-07-31 |
Family
ID=11554561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP333878A Pending JPS5496918A (en) | 1978-01-18 | 1978-01-18 | Clamping system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5496918A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58132471U (en) * | 1982-03-03 | 1983-09-07 | ソニー株式会社 | Ghost removal device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5248655U (en) * | 1975-10-03 | 1977-04-06 |
-
1978
- 1978-01-18 JP JP333878A patent/JPS5496918A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5248655U (en) * | 1975-10-03 | 1977-04-06 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58132471U (en) * | 1982-03-03 | 1983-09-07 | ソニー株式会社 | Ghost removal device |
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