JPS6471395A - Video signal processing circuit - Google Patents
Video signal processing circuitInfo
- Publication number
- JPS6471395A JPS6471395A JP62228737A JP22873787A JPS6471395A JP S6471395 A JPS6471395 A JP S6471395A JP 62228737 A JP62228737 A JP 62228737A JP 22873787 A JP22873787 A JP 22873787A JP S6471395 A JPS6471395 A JP S6471395A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- color
- video signal
- signal processing
- processing circuit
- 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
Abstract
PURPOSE:To obtain a high-quality picture without color-dislocation or dot disturbance by subtracting a luminance signal component from a color signal, and extracting the color signal without a separation error. CONSTITUTION:The composite video signal entering a terminal 1 is made into a color signal (a) by a BPF 12, 1H-delayed by a 1H delay circuit 2 of a logic circuit 25, and made into a signal (b). A signal (f) extracted from the circuit 25 is supplied to a subtracter 24, here subtracted from the signal (a), and made into a signal (c). Since the signal (c) is that obtained by subtracting the signal (f) from the signal (a) contained with the separation error signal, it is the color signal without the separation error, and is outputted from a terminal 6. On the other hand, the signal (c) is supplied to a subtracter 8, and here, made into the Y signal (c) subtracted from the output composite video signal in a delay circuit 23. Consequently, the high-quality picture without the color dislocation and the dot disturbance can be obtained.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62228737A JP2548950B2 (en) | 1987-09-11 | 1987-09-11 | Video signal processing circuit |
US07/241,746 US5099314A (en) | 1987-09-11 | 1988-09-08 | Luminance signal/color signal separation circuit |
DE3844818A DE3844818C2 (en) | 1987-09-11 | 1988-09-09 | |
DE3844820A DE3844820C2 (en) | 1987-09-11 | 1988-09-09 | Brightness and colour signal separation circuit |
GB8821170A GB2209905B (en) | 1987-09-11 | 1988-09-09 | Luminance signal/color signal separation circuit |
DE3830795A DE3830795A1 (en) | 1987-09-11 | 1988-09-09 | BRIGHTNESS / COLOR SIGNAL CIRCUIT |
KR1019880011734A KR920008661B1 (en) | 1987-09-11 | 1988-09-10 | Picture signal processing apparatus |
GB9120970A GB2250657B (en) | 1987-09-11 | 1991-10-03 | Luminance signal/color signal separation circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62228737A JP2548950B2 (en) | 1987-09-11 | 1987-09-11 | Video signal processing circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6471395A true JPS6471395A (en) | 1989-03-16 |
JP2548950B2 JP2548950B2 (en) | 1996-10-30 |
Family
ID=16881029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62228737A Expired - Lifetime JP2548950B2 (en) | 1987-09-11 | 1987-09-11 | Video signal processing circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2548950B2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57111195A (en) * | 1980-12-27 | 1982-07-10 | Sony Corp | Picture filter |
JPS5939184A (en) * | 1982-08-27 | 1984-03-03 | Sony Corp | Separation circuit of chrominance carrier signal |
-
1987
- 1987-09-11 JP JP62228737A patent/JP2548950B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57111195A (en) * | 1980-12-27 | 1982-07-10 | Sony Corp | Picture filter |
JPS5939184A (en) * | 1982-08-27 | 1984-03-03 | Sony Corp | Separation circuit of chrominance carrier signal |
Also Published As
Publication number | Publication date |
---|---|
JP2548950B2 (en) | 1996-10-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080808 Year of fee payment: 12 |
|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080808 Year of fee payment: 12 |