JPS6451887A - Video signal processor - Google Patents
Video signal processorInfo
- Publication number
- JPS6451887A JPS6451887A JP20948487A JP20948487A JPS6451887A JP S6451887 A JPS6451887 A JP S6451887A JP 20948487 A JP20948487 A JP 20948487A JP 20948487 A JP20948487 A JP 20948487A JP S6451887 A JPS6451887 A JP S6451887A
- Authority
- JP
- Japan
- Prior art keywords
- signal level
- video signal
- screen
- chroma
- fluctuation
- 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)
- Studio Circuits (AREA)
Abstract
PURPOSE:To prevent the generation of the fluctuation of the density of a color on a slave screen even when a fluctuation is generated in the chroma signal level of a master screen according to the switching of a channel by controlling the chroma signal level of the slave screen based on the chroma signal level of the master screen. CONSTITUTION:An ACC circuit 13 for controlling the chroma signal level in a video signal for forming the slave screen is disposed and at the time of compressing and inserting the slave screen to the master screen, the ACC circuit 13 is operated based on the chroma signal level in the video signal forming the master screen. Accordingly, at the time of generating the fluctuation in the chroma. signal level in the video signal of a television broadcasting, the chroma signal level of the part of the video signal of the television broadcasting is controlled so as to be constant by the ACC circuit 49 of a television receiver 2. Thereby, the chroma signal level of the part of a reproducing video signal is controlled so as to be constant to prevent the generation of the fluctuation of the density of the color of the slave screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20948487A JPS6451887A (en) | 1987-08-24 | 1987-08-24 | Video signal processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20948487A JPS6451887A (en) | 1987-08-24 | 1987-08-24 | Video signal processor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6451887A true JPS6451887A (en) | 1989-02-28 |
Family
ID=16573596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20948487A Pending JPS6451887A (en) | 1987-08-24 | 1987-08-24 | Video signal processor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6451887A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0287885A (en) * | 1988-09-26 | 1990-03-28 | Nec Corp | Video signal circuit |
| US5070395A (en) * | 1989-03-31 | 1991-12-03 | Victor Company Of Japan, Ltd. | Television signal system conversion apparatus |
| US5311317A (en) * | 1991-04-19 | 1994-05-10 | Sony Corporation | Video signal processing apparatus for displaying stored video signal during channel selection |
-
1987
- 1987-08-24 JP JP20948487A patent/JPS6451887A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0287885A (en) * | 1988-09-26 | 1990-03-28 | Nec Corp | Video signal circuit |
| US5070395A (en) * | 1989-03-31 | 1991-12-03 | Victor Company Of Japan, Ltd. | Television signal system conversion apparatus |
| US5311317A (en) * | 1991-04-19 | 1994-05-10 | Sony Corporation | Video signal processing apparatus for displaying stored video signal during channel selection |
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