JPS555518A - False signal suppression circuit for color pick up unit - Google Patents
False signal suppression circuit for color pick up unitInfo
- Publication number
- JPS555518A JPS555518A JP7788378A JP7788378A JPS555518A JP S555518 A JPS555518 A JP S555518A JP 7788378 A JP7788378 A JP 7788378A JP 7788378 A JP7788378 A JP 7788378A JP S555518 A JPS555518 A JP S555518A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- band component
- green
- blue
- synthesized
- 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 enable to eliminate false signal, by arranging the sampling frequencies of each chroma signal from green to blue, and making agreement in the transfer function to horizontal direction.
CONSTITUTION: The green signal G and the red and blue dot sequential signal R/B from the optical low pass filter 2 taking 1/2Px (where: Px is the arrangement pitch of horizontal video element) as the cut off frequency, and pick up elements 3G and 3RG, are the dot sequential differential signal R-GR (greeen signal to red signal) and B-GB (green signal to blue signal) from the subtractor 4. Those signals are fed to the carrier chrominance signal forming circuit 10 to form the carrier chrominance signal Sc. On the other hand, at the luminance signal forming circuit 20, high band component of green signal G is used to obtain the high band component YH, and the low band component YL is obtained through the use of the low band component of each chroma signal G to B so that it can be the same as the low band component as the luminance signal in NTSC system, and the signals YH and YL are synthesized 28 to obtain the luminance signal SY. Further, the carrier chrominance signal SC and the laminance signal SY are synthesized 29 to obtain the synthesized color video signal SO.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7788378A JPS555518A (en) | 1978-06-27 | 1978-06-27 | False signal suppression circuit for color pick up unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7788378A JPS555518A (en) | 1978-06-27 | 1978-06-27 | False signal suppression circuit for color pick up unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS555518A true JPS555518A (en) | 1980-01-16 |
Family
ID=13646464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7788378A Pending JPS555518A (en) | 1978-06-27 | 1978-06-27 | False signal suppression circuit for color pick up unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS555518A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62104294A (en) * | 1985-10-31 | 1987-05-14 | Canon Inc | Multi-board type image pickup device |
-
1978
- 1978-06-27 JP JP7788378A patent/JPS555518A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62104294A (en) * | 1985-10-31 | 1987-05-14 | Canon Inc | Multi-board type image pickup device |
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