JPS5526781A - Transmitter for digital video signal - Google Patents
Transmitter for digital video signalInfo
- Publication number
- JPS5526781A JPS5526781A JP10032878A JP10032878A JPS5526781A JP S5526781 A JPS5526781 A JP S5526781A JP 10032878 A JP10032878 A JP 10032878A JP 10032878 A JP10032878 A JP 10032878A JP S5526781 A JPS5526781 A JP S5526781A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- video
- video signal
- discrimination
- video information
- 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
Abstract
PURPOSE: To attain accurate restoration into an original analog signal in regeneration by removing a period except that for video information and adding a signal for the discrimination of orders of frames and fields of a video signal, when the video signal is digitized and recorded.
CONSTITUTION: A composite color video signal from terminal 3 is supplied to A/D converter 4 and separator circuit 5. A signal digitized by converter 4 is inputted to time-axis expander circuit 6 composed of RAM, where the time axis of the digital signal is expanded so that horizontal and vertical periods except that for an image will be removed. A burst signal separated by circuit 5 is applied to continuous-wave generator 12, thereby generating chrominance subcarrier SC. This signal and vertical and horizontal synchronizing signals VD and HD are converted by ID signal generator 14 into name discrimination signals LD, FLD and FRD for a line, field and frame, which are coded 15 and added 8 to video information before being recorded on magnetic tape 2. For regeneration, discrimination signals are decoded 21 to generate 26 composite synchronizing signals and the video information is compressed 23 in terms of time axis and D/A-converted 24, thereby obtaining the original analog information.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10032878A JPS5526781A (en) | 1978-08-17 | 1978-08-17 | Transmitter for digital video signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10032878A JPS5526781A (en) | 1978-08-17 | 1978-08-17 | Transmitter for digital video signal |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5526781A true JPS5526781A (en) | 1980-02-26 |
JPS637080B2 JPS637080B2 (en) | 1988-02-15 |
Family
ID=14271087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10032878A Granted JPS5526781A (en) | 1978-08-17 | 1978-08-17 | Transmitter for digital video signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5526781A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56160182A (en) * | 1980-04-16 | 1981-12-09 | Sony Corp | Processor of digital video signal |
JPS56160181A (en) * | 1980-04-23 | 1981-12-09 | Sony Corp | Processing system of digital video signal |
JPS5773577A (en) * | 1980-10-27 | 1982-05-08 | Sony Corp | Control signal fetch circuit |
JPS57142085A (en) * | 1981-02-27 | 1982-09-02 | Victor Co Of Japan Ltd | Digital video signal recording system |
JPS57142086A (en) * | 1981-02-27 | 1982-09-02 | Victor Co Of Japan Ltd | Digital video signal reproducer |
JPS60171869A (en) * | 1984-02-15 | 1985-09-05 | Sony Corp | Synchronizing signal generator |
JPS60220694A (en) * | 1984-04-17 | 1985-11-05 | Sony Corp | Digital vtr |
JPS6170880A (en) * | 1984-09-14 | 1986-04-11 | Matsushita Electric Ind Co Ltd | Recording and reproducing device of video signal |
JPS61171295A (en) * | 1985-01-25 | 1986-08-01 | Hitachi Ltd | Device for correcting time base of video signal |
JPS62173887U (en) * | 1986-04-23 | 1987-11-05 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5317218A (en) * | 1976-07-31 | 1978-02-17 | Sony Corp | Recording method of image signal |
-
1978
- 1978-08-17 JP JP10032878A patent/JPS5526781A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5317218A (en) * | 1976-07-31 | 1978-02-17 | Sony Corp | Recording method of image signal |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56160182A (en) * | 1980-04-16 | 1981-12-09 | Sony Corp | Processor of digital video signal |
JPS56160181A (en) * | 1980-04-23 | 1981-12-09 | Sony Corp | Processing system of digital video signal |
JPH0212075B2 (en) * | 1980-10-27 | 1990-03-16 | Sony Corp | |
JPS5773577A (en) * | 1980-10-27 | 1982-05-08 | Sony Corp | Control signal fetch circuit |
DE3142355A1 (en) * | 1980-10-27 | 1982-09-02 | Sony Corp., Tokyo | METHOD AND CIRCUIT ARRANGEMENT FOR DETERMINING A CONTROL SIGNAL ASSIGNED TO A DIGITAL DATA SIGNAL |
JPS57142085A (en) * | 1981-02-27 | 1982-09-02 | Victor Co Of Japan Ltd | Digital video signal recording system |
JPS57142086A (en) * | 1981-02-27 | 1982-09-02 | Victor Co Of Japan Ltd | Digital video signal reproducer |
JPS60171869A (en) * | 1984-02-15 | 1985-09-05 | Sony Corp | Synchronizing signal generator |
JPS60220694A (en) * | 1984-04-17 | 1985-11-05 | Sony Corp | Digital vtr |
JPS6170880A (en) * | 1984-09-14 | 1986-04-11 | Matsushita Electric Ind Co Ltd | Recording and reproducing device of video signal |
JPH0580872B2 (en) * | 1984-09-14 | 1993-11-10 | Matsushita Electric Ind Co Ltd | |
JPS61171295A (en) * | 1985-01-25 | 1986-08-01 | Hitachi Ltd | Device for correcting time base of video signal |
JPS62173887U (en) * | 1986-04-23 | 1987-11-05 |
Also Published As
Publication number | Publication date |
---|---|
JPS637080B2 (en) | 1988-02-15 |
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