JPS54100221A - Video signal process circuit - Google Patents
Video signal process circuitInfo
- Publication number
- JPS54100221A JPS54100221A JP620278A JP620278A JPS54100221A JP S54100221 A JPS54100221 A JP S54100221A JP 620278 A JP620278 A JP 620278A JP 620278 A JP620278 A JP 620278A JP S54100221 A JPS54100221 A JP S54100221A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- added
- video signal
- noise
- 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.)
- Granted
Links
Landscapes
- Picture Signal Circuits (AREA)
Abstract
PURPOSE: To obtain a high-contrast picture by processing the signal through the secondary differential circuit and the waveform shaping circuit through which the noise is suppressed with the low frequency to reduce the overshoot and the contour is emphasized.
CONSTITUTION: The video signal process circuit suppresses the noise of the video signal for the TV receiver, the VTR and the like. In this process circuit, the video signal of input terminal 1 is isolated into the primary differential HPF2 and LPF3 to be supplied, and the signals passed through HPF2 are made to pass through expansion circuit 4 to be turned to signal C with the noise deleted and then added to output signal 6 of LPF2 via adder circuit 5 to deliver signal d. Signal d is furthermore isolated into secondary HPF7 and LPF8 to be added, and the signals passed through HPF7 are added to polarity reversing circuit 9 to deliver signal e to the output. Then signal e is added to the signal passed through LPF8 through adder circuit 10. Thus, output signal f featuring reduced overshoot is delivered to output terminal 6.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP620278A JPS54100221A (en) | 1978-01-25 | 1978-01-25 | Video signal process circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP620278A JPS54100221A (en) | 1978-01-25 | 1978-01-25 | Video signal process circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54100221A true JPS54100221A (en) | 1979-08-07 |
JPS6216065B2 JPS6216065B2 (en) | 1987-04-10 |
Family
ID=11631945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP620278A Granted JPS54100221A (en) | 1978-01-25 | 1978-01-25 | Video signal process circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54100221A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4969012A (en) * | 1972-11-07 | 1974-07-04 |
-
1978
- 1978-01-25 JP JP620278A patent/JPS54100221A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4969012A (en) * | 1972-11-07 | 1974-07-04 |
Also Published As
Publication number | Publication date |
---|---|
JPS6216065B2 (en) | 1987-04-10 |
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