JPS6489887A - Composite video signal output circuit - Google Patents
Composite video signal output circuitInfo
- Publication number
- JPS6489887A JPS6489887A JP62246539A JP24653987A JPS6489887A JP S6489887 A JPS6489887 A JP S6489887A JP 62246539 A JP62246539 A JP 62246539A JP 24653987 A JP24653987 A JP 24653987A JP S6489887 A JPS6489887 A JP S6489887A
- Authority
- JP
- Japan
- Prior art keywords
- video signal
- composite video
- term
- line
- signal
- 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 prevent the occurence of corrugated distortion for a line non- correlation part by executing a direct E-E mode which directly uses an inputted composite video signal in a vertical blanking term. CONSTITUTION:A Y/C separation comb line filter 3 to which the first composite video signal is supplied and an adder 19 which makes the second composite video signal by composing a luminance signal separated by the filter 3 and a chrome signal are provided. Besides, switch means 10 and 20 which select the first composite video signal in a vertical retrace line term, supply it to an output terminal 11, select the second composite video signal except the vertical retrace line term and supply it to the output terminal 11 is provided. Then they are switched to the direct E-E mode in the vertical blanking term by the switch means. Thus, even when a digital signal and the like which does not have line correlation exists in the vertical blanking term of the first composite video signal, the currugated distortion caused by the comb line filter can be prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62246539A JPS6489887A (en) | 1987-09-30 | 1987-09-30 | Composite video signal output circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62246539A JPS6489887A (en) | 1987-09-30 | 1987-09-30 | Composite video signal output circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6489887A true JPS6489887A (en) | 1989-04-05 |
Family
ID=17149913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62246539A Pending JPS6489887A (en) | 1987-09-30 | 1987-09-30 | Composite video signal output circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6489887A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01101792A (en) * | 1987-10-14 | 1989-04-19 | Victor Co Of Japan Ltd | Magnetic recording and reproducing device |
-
1987
- 1987-09-30 JP JP62246539A patent/JPS6489887A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01101792A (en) * | 1987-10-14 | 1989-04-19 | Victor Co Of Japan Ltd | Magnetic recording and reproducing device |
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