JPS5549083A - Reproduction system for field index signal - Google Patents
Reproduction system for field index signalInfo
- Publication number
- JPS5549083A JPS5549083A JP12149178A JP12149178A JPS5549083A JP S5549083 A JPS5549083 A JP S5549083A JP 12149178 A JP12149178 A JP 12149178A JP 12149178 A JP12149178 A JP 12149178A JP S5549083 A JPS5549083 A JP S5549083A
- Authority
- JP
- Japan
- Prior art keywords
- synchronizing signal
- terminal
- signal
- field index
- index signal
- 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
- Television Signal Processing For Recording (AREA)
Abstract
PURPOSE: To reproduce a stable field index signal from an output terminal of FF by making a decision on a field in accordance with "1" and "0" of pulse train at the leading edge of a vertical synchronizing signal.
CONSTITUTION: A composite synchronizing signal separated from a video signal by synchronous separator 51 is applied to a J terminal of JKFF54 as a spulse train of a horizontal synchronizing signal converted at constant intervals by two monostable multivibrators 52 and 53 to a duty ratio of pulse width of 50%. The horizontal synchronizing signal applied to this J terminal is applied to a K terminal of FF54 after phase inversion 55, so that a vertical synchronizing signal will be supplied to a clock terminal of FF54. As decision on a field is made in accordance with "1" and "0" of the pulse train at the leading edge of the vertical synchronizing signal, so that a stable field index signal can be reproduced from an output terminal of FF54.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12149178A JPS5549083A (en) | 1978-10-04 | 1978-10-04 | Reproduction system for field index signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12149178A JPS5549083A (en) | 1978-10-04 | 1978-10-04 | Reproduction system for field index signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5549083A true JPS5549083A (en) | 1980-04-08 |
Family
ID=14812469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12149178A Pending JPS5549083A (en) | 1978-10-04 | 1978-10-04 | Reproduction system for field index signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5549083A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5643883A (en) * | 1979-09-17 | 1981-04-22 | Matsushita Electric Ind Co Ltd | Magnetic image recording and reproducing device |
-
1978
- 1978-10-04 JP JP12149178A patent/JPS5549083A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5643883A (en) * | 1979-09-17 | 1981-04-22 | Matsushita Electric Ind Co Ltd | Magnetic image recording and reproducing device |
JPS6261196B2 (en) * | 1979-09-17 | 1987-12-19 | Matsushita Electric Ind Co Ltd |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5346224A (en) | Color video signal reproducing unit | |
JPS5242324A (en) | Chroma signal processing system | |
JPS539418A (en) | Recording and reproducing unit | |
JPS53142123A (en) | Synchronous signal generator of pal system | |
JPS5549083A (en) | Reproduction system for field index signal | |
JPS53131722A (en) | Still and slow-motion reproduction method | |
JPS5275114A (en) | Magnetic video signal recorder | |
JPS54128628A (en) | Frequency conversion circuit for secam color video signal | |
JPS54515A (en) | Reproducing unit of video information | |
JPS5384705A (en) | Signal reproducing system | |
JPS5389317A (en) | Reproducing unit for color video signal | |
JPS545325A (en) | Dubbing system for video recorder | |
JPS5286722A (en) | Color television signal decoding unit | |
JPS5292436A (en) | Optical letter scanning unit | |
JPS5277519A (en) | Tv equipment | |
JPS5428523A (en) | Phase reset system for pilot signal and color subcarrier | |
JPS5269226A (en) | Color difference signal demodulator of pal system television image rec eiver | |
JPS5421222A (en) | Synchronous separation circuit | |
JPS543423A (en) | Synchronous isolator circuit | |
JPS5332613A (en) | Automatic equalizing system with synchronous level | |
JPS5341928A (en) | Television multi-character broadcast receiver | |
JPS527626A (en) | Tv set with built-in video tape reproducing unit | |
JPS52111329A (en) | Generator for index signal | |
JPS5357709A (en) | Gen-lock for pal-system color television signal | |
JPS54144816A (en) | Video signal recording and reproduction unit |