JPS648793A - Luminance signal chrominance signal separation filter corresponding to picture correlation - Google Patents
Luminance signal chrominance signal separation filter corresponding to picture correlationInfo
- Publication number
- JPS648793A JPS648793A JP16441687A JP16441687A JPS648793A JP S648793 A JPS648793 A JP S648793A JP 16441687 A JP16441687 A JP 16441687A JP 16441687 A JP16441687 A JP 16441687A JP S648793 A JPS648793 A JP S648793A
- Authority
- JP
- Japan
- Prior art keywords
- sampling
- signal
- noticed
- given
- extraction filter
- 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
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE:To reduce dot disturbance by using a delay means so as to retard a composite video signal thereby obtaining a sampling value of plural noticed sampling points at the same time. CONSTITUTION:A decoded color TV signal of the NTSC system from a terminal 1 is given to an A/D converter 4, which samples a TV signal by a sampling frequency. The sampled TV signal is given to a one line delay circuit 5a and the sampling in a noticed sampling point and the sampled value at the sampling point of the picture of the noticed sampling point by one line higher and lower are extracted simultaneously through a one line delay circuit 5b. The sampled value extracted from the circuits 5a, 5b is given to a vertical direction color signal extraction filter 6a, a horizontal direction color signal extraction filter 6b, a horizontal/vertical direction color signal extraction filter 6c and a picture correlation discrimination circuit 7 to reduce the dot disturbance.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16441687A JPS648793A (en) | 1987-07-01 | 1987-07-01 | Luminance signal chrominance signal separation filter corresponding to picture correlation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16441687A JPS648793A (en) | 1987-07-01 | 1987-07-01 | Luminance signal chrominance signal separation filter corresponding to picture correlation |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS648793A true JPS648793A (en) | 1989-01-12 |
Family
ID=15792732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16441687A Pending JPS648793A (en) | 1987-07-01 | 1987-07-01 | Luminance signal chrominance signal separation filter corresponding to picture correlation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS648793A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0583732A (en) * | 1990-06-09 | 1993-04-02 | Samsung Electron Co Ltd | Luminance and color-signal separating circuit |
-
1987
- 1987-07-01 JP JP16441687A patent/JPS648793A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0583732A (en) * | 1990-06-09 | 1993-04-02 | Samsung Electron Co Ltd | Luminance and color-signal separating circuit |
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