JPS648774A - Video signal processing unit - Google Patents
Video signal processing unitInfo
- Publication number
- JPS648774A JPS648774A JP16464387A JP16464387A JPS648774A JP S648774 A JPS648774 A JP S648774A JP 16464387 A JP16464387 A JP 16464387A JP 16464387 A JP16464387 A JP 16464387A JP S648774 A JPS648774 A JP S648774A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- video
- output
- sawtooth wave
- 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 enjoy an abstract video image by using a synthesis signal so as to apply blanking to an output being the result of video signal processing to a TV video signal and extracting the abstract video image. CONSTITUTION:An output signal of a video intermediate frequency amplification circuit VIF 3 is oututted to a video signal processing circuit 5 and outputted to a synchronizing separator circuit 11 via connectors 4,10. A horizontal synchronizing signal Hs and a vertical synchronizing signal Vs are obtained from the circuit 11 and a sawtooth wave is obtained from the output to sawtooth wave generating circuits 12, 13. The sawtooth wave is given to voltage comparator circuits 14-21, from which horizontal and vertical blanking pulses are generated, and they are synthesized by a pulse synthesis circuit 22. An output signal of the circuit 22 is fed to a signal switching circuit 6 of a receiver 9 as an extraction signal. The primary color signal outputted from the circuit 5 and the primary color signal given from the connector are switched at the circuit 6 by using the signal Ys to display plural abstract pictures on the CRT 8.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16464387A JPS648774A (en) | 1987-06-30 | 1987-06-30 | Video signal processing unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16464387A JPS648774A (en) | 1987-06-30 | 1987-06-30 | Video signal processing unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS648774A true JPS648774A (en) | 1989-01-12 |
Family
ID=15797083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16464387A Pending JPS648774A (en) | 1987-06-30 | 1987-06-30 | Video signal processing unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS648774A (en) |
-
1987
- 1987-06-30 JP JP16464387A patent/JPS648774A/en active Pending
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