JPS5473516A - Waveform shaping circuit for video signal - Google Patents
Waveform shaping circuit for video signalInfo
- Publication number
- JPS5473516A JPS5473516A JP14088477A JP14088477A JPS5473516A JP S5473516 A JPS5473516 A JP S5473516A JP 14088477 A JP14088477 A JP 14088477A JP 14088477 A JP14088477 A JP 14088477A JP S5473516 A JPS5473516 A JP S5473516A
- Authority
- JP
- Japan
- Prior art keywords
- differential output
- signal
- video signal
- waveform
- waveform shaping
- 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)
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE: To ensure the waveform shaping with no preshoot nor overshoot by multiplying the primary differential output and the secondary differential output of the video signal to correct the secondary differential output waveform and then making the peak value of the waveforms approximate to each other with the positive and negative polarity pulses.
CONSTITUTION: The narrow-band video signal SA is applied to differentiating circuit 2 and 3 to obtain primary differential output SB and secondary differential output SC and then to supply them to multipliers 4∼6 in sequence. The peak positions of signal SD and SE drift more inside than the peak position of the rise pulse of SC with a waveform sharpened. At the same time, the peak position of SD shifts inward for signal SF and SG as well, and signal SH and SI also show the similar trend to SE. Composite output SJ, SK and SL are obtained through the subtraction and addition via compounders 7∼9 with SL added 10 to SA to sharpen the both rise and fall. Thus, video shgnal SM featuring a wide band virtually is extracted.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14088477A JPS5473516A (en) | 1977-11-24 | 1977-11-24 | Waveform shaping circuit for video signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14088477A JPS5473516A (en) | 1977-11-24 | 1977-11-24 | Waveform shaping circuit for video signal |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5473516A true JPS5473516A (en) | 1979-06-12 |
JPS6216064B2 JPS6216064B2 (en) | 1987-04-10 |
Family
ID=15279003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14088477A Granted JPS5473516A (en) | 1977-11-24 | 1977-11-24 | Waveform shaping circuit for video signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5473516A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57143984A (en) * | 1981-01-30 | 1982-09-06 | Bosch Gmbh Robert | Method of generating opening strain correction signal |
US4736242A (en) * | 1984-10-06 | 1988-04-05 | Victor Company Of Japan, Ltd. | Transitory scanning speed phase compensation using luminance edge detection |
JPH0265471A (en) * | 1988-08-31 | 1990-03-06 | Matsushita Electric Ind Co Ltd | Contour correcting device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20230166970A1 (en) | 2020-03-27 | 2023-06-01 | Mitsubishi Materials Corporation | Thermoelectric conversion material, thermoelectric conversion element, and thermoelectric conversion module |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5268315A (en) * | 1975-12-02 | 1977-06-07 | Faroudja Y C | Method and device for shortening transfer time of high speed aperiodic signal |
-
1977
- 1977-11-24 JP JP14088477A patent/JPS5473516A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5268315A (en) * | 1975-12-02 | 1977-06-07 | Faroudja Y C | Method and device for shortening transfer time of high speed aperiodic signal |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57143984A (en) * | 1981-01-30 | 1982-09-06 | Bosch Gmbh Robert | Method of generating opening strain correction signal |
US4736242A (en) * | 1984-10-06 | 1988-04-05 | Victor Company Of Japan, Ltd. | Transitory scanning speed phase compensation using luminance edge detection |
JPH0265471A (en) * | 1988-08-31 | 1990-03-06 | Matsushita Electric Ind Co Ltd | Contour correcting device |
Also Published As
Publication number | Publication date |
---|---|
JPS6216064B2 (en) | 1987-04-10 |
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