JPS5627589A - Color auxiliary modulator - Google Patents
Color auxiliary modulatorInfo
- Publication number
- JPS5627589A JPS5627589A JP10317379A JP10317379A JPS5627589A JP S5627589 A JPS5627589 A JP S5627589A JP 10317379 A JP10317379 A JP 10317379A JP 10317379 A JP10317379 A JP 10317379A JP S5627589 A JPS5627589 A JP S5627589A
- Authority
- JP
- Japan
- Prior art keywords
- color
- level
- output
- black
- phase
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N11/00—Colour television systems
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE:To make an edge part clear by improving the phase reproducibility of a chrominance signal part at a boundary between a black-and-white part and other- color part by increasing the logical level of a chrominance signal when a color display signal assigning white or black color is supplied. CONSTITUTION:Color data CD1-CD3 are input following color burst flag pulse CBF. When color data CD1-CD3 are all held at level ''L'' or ''H'', symmetric rectangular signal selecting circuit 3 generates an output of level ''L'' and NAND gate 8 sends out an output of level ''H'', causing the output of the 1st mixing circuit 9 to change. As a result, the phase detection range is widened and the phase reproducibility improves.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10317379A JPS603261B2 (en) | 1979-08-15 | 1979-08-15 | Color sub-modulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10317379A JPS603261B2 (en) | 1979-08-15 | 1979-08-15 | Color sub-modulator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5627589A true JPS5627589A (en) | 1981-03-17 |
JPS603261B2 JPS603261B2 (en) | 1985-01-26 |
Family
ID=14347107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10317379A Expired JPS603261B2 (en) | 1979-08-15 | 1979-08-15 | Color sub-modulator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS603261B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6073865U (en) * | 1983-10-28 | 1985-05-24 | ダイハツ工業株式会社 | Structure of exhaust gas recirculation passage |
-
1979
- 1979-08-15 JP JP10317379A patent/JPS603261B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS603261B2 (en) | 1985-01-26 |
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