JPS6484988A - Movement detection circuit - Google Patents
Movement detection circuitInfo
- Publication number
- JPS6484988A JPS6484988A JP62242104A JP24210487A JPS6484988A JP S6484988 A JPS6484988 A JP S6484988A JP 62242104 A JP62242104 A JP 62242104A JP 24210487 A JP24210487 A JP 24210487A JP S6484988 A JPS6484988 A JP S6484988A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- color
- difference
- detection circuit
- detect
- 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 detect a color moving signal without being disturbed by a luminance signal very easily and surely by detecting a difference of an absolute value of a color signal between frames to detect a color moving signal. CONSTITUTION:An input signal 11 digitized by A/D-converting an input video signal is subject to one frame delay by a frame memory 12 and only a color signal is extracted by band pass filters 13, 14 from a signal before one frame delay and a retarded signal. The band pass filters 13, 14 are used to pass frequency components below and over the 3.58MHz component being a color subcarrier of the color signal. The signal is given respectively to absolute value circuits 15, 16 to convert it into a DC signal and a differential detection circuit 17 takes each difference to obtain a detection signal 18 being a difference of the color signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62242104A JPS6484988A (en) | 1987-09-25 | 1987-09-25 | Movement detection circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62242104A JPS6484988A (en) | 1987-09-25 | 1987-09-25 | Movement detection circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6484988A true JPS6484988A (en) | 1989-03-30 |
Family
ID=17084358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62242104A Pending JPS6484988A (en) | 1987-09-25 | 1987-09-25 | Movement detection circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6484988A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60160795A (en) * | 1984-02-01 | 1985-08-22 | Hitachi Ltd | Movement detecting circuit |
-
1987
- 1987-09-25 JP JP62242104A patent/JPS6484988A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60160795A (en) * | 1984-02-01 | 1985-08-22 | Hitachi Ltd | Movement detecting circuit |
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