JPS5544211A - Video recording and reproducing unit - Google Patents
Video recording and reproducing unitInfo
- Publication number
- JPS5544211A JPS5544211A JP11579278A JP11579278A JPS5544211A JP S5544211 A JPS5544211 A JP S5544211A JP 11579278 A JP11579278 A JP 11579278A JP 11579278 A JP11579278 A JP 11579278A JP S5544211 A JPS5544211 A JP S5544211A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- selection pulse
- track
- video signal
- selection
- 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 avoid waving on screen of television receiver at slow reproduction, by inserting the equivalent vertical synchronizing signal before the vertical synchronizing signal of normal video signal.
CONSTITUTION: For example, when the tracks 8, 9 recorded on 1, 2ch of the rotary head are at 1/2 flow reproduction, the head of 1, 2ch alternately and sequentially tracks on q-i, h-j, i-k, j-l. In this case, the distance between the start point 7 of the video signal and the selection pulse position 6 is α+αH/2, α-αH, α-αH/ 2 (αH is the number of track shift.) by taking the track as α. The selection pulse at the position 6 of selection pulse and the control pulse on the magnetic tape produce the equivalent vertical pulse signal having four phases to the selection pulse delayed in αH/4 unit for the selection pulse, and this pulse is inserted to immediatly be fore the video signal obtained with the said track.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11579278A JPS5544211A (en) | 1978-09-22 | 1978-09-22 | Video recording and reproducing unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11579278A JPS5544211A (en) | 1978-09-22 | 1978-09-22 | Video recording and reproducing unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5544211A true JPS5544211A (en) | 1980-03-28 |
JPS6147033B2 JPS6147033B2 (en) | 1986-10-17 |
Family
ID=14671176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11579278A Granted JPS5544211A (en) | 1978-09-22 | 1978-09-22 | Video recording and reproducing unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5544211A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5780883A (en) * | 1980-11-06 | 1982-05-20 | Matsushita Electric Ind Co Ltd | Rotary head type magnetic picture recording and reproducing device |
US4404601A (en) * | 1980-02-16 | 1983-09-13 | Sony Corporation | Head tracking control system |
JPS6016776A (en) * | 1984-06-11 | 1985-01-28 | Matsushita Electric Ind Co Ltd | Rotary head type magnetic video recording and reproducing device |
-
1978
- 1978-09-22 JP JP11579278A patent/JPS5544211A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4404601A (en) * | 1980-02-16 | 1983-09-13 | Sony Corporation | Head tracking control system |
JPS5780883A (en) * | 1980-11-06 | 1982-05-20 | Matsushita Electric Ind Co Ltd | Rotary head type magnetic picture recording and reproducing device |
JPS6016776A (en) * | 1984-06-11 | 1985-01-28 | Matsushita Electric Ind Co Ltd | Rotary head type magnetic video recording and reproducing device |
Also Published As
Publication number | Publication date |
---|---|
JPS6147033B2 (en) | 1986-10-17 |
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