JPS5779784A - Memory device - Google Patents
Memory deviceInfo
- Publication number
- JPS5779784A JPS5779784A JP55154896A JP15489680A JPS5779784A JP S5779784 A JPS5779784 A JP S5779784A JP 55154896 A JP55154896 A JP 55154896A JP 15489680 A JP15489680 A JP 15489680A JP S5779784 A JPS5779784 A JP S5779784A
- Authority
- JP
- Japan
- Prior art keywords
- video signal
- color video
- signal
- frame memory
- field
- 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
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/87—Regeneration of colour television signals
- H04N9/89—Time-base error compensation
- H04N9/896—Time-base error compensation using a digital memory with independent write-in and read-out clock generators
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE:To make excellent compensation, by executing readout so that the phase of a subcarrier signal cincides, in reading out a color video signal before one field from a memory and replacing it with an input color video signal to be compensated. CONSTITUTION:After an analog color video signal applied to an input terminal 2 is converted into a digital coded signal at an A-D converter 3, it is stored in a frame memory 1 via a switching replacement circuit 4, shift register 5, and latch circuit 6. A signal read out from the frame memory 1 is given to an output terminal 24 via a latch circuit 21, shift register 22 and D-A converter 23. A color video signal before one field shifted by 1H at an odd number field and an even number field is read out so that the phase of the subcarrier of the input color video signal coincides in the frame memory 1 and replaced with the input color signal to be compensated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55154896A JPS5779784A (en) | 1980-11-04 | 1980-11-04 | Memory device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55154896A JPS5779784A (en) | 1980-11-04 | 1980-11-04 | Memory device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5779784A true JPS5779784A (en) | 1982-05-19 |
JPH029757B2 JPH029757B2 (en) | 1990-03-05 |
Family
ID=15594320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55154896A Granted JPS5779784A (en) | 1980-11-04 | 1980-11-04 | Memory device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5779784A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01215193A (en) * | 1988-02-23 | 1989-08-29 | Matsushita Electric Ind Co Ltd | Video signal processor |
JPH01296893A (en) * | 1988-05-25 | 1989-11-30 | Matsushita Electric Ind Co Ltd | Video signal processor |
JPH04117888A (en) * | 1990-09-07 | 1992-04-17 | Matsushita Electric Ind Co Ltd | Error correction method for pal system color video signal |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5471614A (en) * | 1977-11-17 | 1979-06-08 | Sony Corp | Signl correcting method of digital video signal |
-
1980
- 1980-11-04 JP JP55154896A patent/JPS5779784A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5471614A (en) * | 1977-11-17 | 1979-06-08 | Sony Corp | Signl correcting method of digital video signal |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01215193A (en) * | 1988-02-23 | 1989-08-29 | Matsushita Electric Ind Co Ltd | Video signal processor |
JPH01296893A (en) * | 1988-05-25 | 1989-11-30 | Matsushita Electric Ind Co Ltd | Video signal processor |
JPH04117888A (en) * | 1990-09-07 | 1992-04-17 | Matsushita Electric Ind Co Ltd | Error correction method for pal system color video signal |
Also Published As
Publication number | Publication date |
---|---|
JPH029757B2 (en) | 1990-03-05 |
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