JPS6489778A - Video signal processing circuit - Google Patents
Video signal processing circuitInfo
- Publication number
- JPS6489778A JPS6489778A JP62244003A JP24400387A JPS6489778A JP S6489778 A JPS6489778 A JP S6489778A JP 62244003 A JP62244003 A JP 62244003A JP 24400387 A JP24400387 A JP 24400387A JP S6489778 A JPS6489778 A JP S6489778A
- Authority
- JP
- Japan
- Prior art keywords
- converter
- video
- data
- inputted
- serial
- 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 easily process a video such as a four divided screen and a noise reduction by dividing a memory area into a time base correcting(TBC) area and a video storing area, further, extracting a vertical synchronization signal from digital data inputted to a D/A converter during the operation of the TBC, and controlling the address counter of the video storing area. CONSTITUTION:A video signal including a jitter is A/D-converted by a clock including the jitter, and inputted to a serial-parallel converter 12. The serial- parallel converter 12 makes four sampling data=32 bits into one block, and transfers the data to an A register 13. The data of a D register 17 are successively transferred block, by block eight blocks are transferred at 8TSC, and inputted to a D/A converter at every sampling data. Further, a vertical synchronization signal detecting circuit 25 detects a vertical synchronization signal from digital data transferred from a parallel-serial converter 18 to the D/A converter 19, and resets an address counter 23 for the video storing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62244003A JPS6489778A (en) | 1987-09-30 | 1987-09-30 | Video signal processing circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62244003A JPS6489778A (en) | 1987-09-30 | 1987-09-30 | Video signal processing circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6489778A true JPS6489778A (en) | 1989-04-04 |
Family
ID=17112266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62244003A Pending JPS6489778A (en) | 1987-09-30 | 1987-09-30 | Video signal processing circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6489778A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04233881A (en) * | 1990-06-27 | 1992-08-21 | Samsung Electron Co Ltd | Digital video signal reproducing circuit |
-
1987
- 1987-09-30 JP JP62244003A patent/JPS6489778A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04233881A (en) * | 1990-06-27 | 1992-08-21 | Samsung Electron Co Ltd | Digital video signal reproducing circuit |
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