JPS64871A - Video signal recording and reproducing method - Google Patents
Video signal recording and reproducing methodInfo
- Publication number
- JPS64871A JPS64871A JP62155870A JP15587087A JPS64871A JP S64871 A JPS64871 A JP S64871A JP 62155870 A JP62155870 A JP 62155870A JP 15587087 A JP15587087 A JP 15587087A JP S64871 A JPS64871 A JP S64871A
- Authority
- JP
- Japan
- Prior art keywords
- tape
- signal
- high speed
- speed
- reproduced
- 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
Landscapes
- Television Signal Processing For Recording (AREA)
Abstract
PURPOSE: To speed up the traveling speed of a tape, and to improve a retrieving speed as maintaining the discrimination properties of a reproduced picture at the time of a high speed retrieval by extremely reducing a tape winding angle at the high speed retrieval, and recording the information of whole one screen within the range of said winding angle.
CONSTITUTION: The tape 1 is wound around a drum 6 by 90° at the time of the high speed retrieval, and it means a state that only the lower half of a recording track is in contact with a head. A signal, obtained at the time that the tape 1 is reproduced while it is made to travel at high speed in this state is only from the lower half of the tape 1, but because the information of whole one screen is recorded on both the lower half and the upper half of the track, all odd number lines are reproduced, and the signal of the whole picture frame is obtained. The signal of the scanning line of an even numbered turn is generated by an interpolating processing, and the signal which is close to the reproduced signal of one picture frame can be obtained by reading it after storing it in a field memory again. Thus, by making the tape winding angle at the high speed retrieval small compared with a normal reproduction, a friction resistance between the tape and the drum can be made small, and a tape speed can be made large, and the retrieving speed can be elevated.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62155870A JPH0817472B2 (en) | 1987-06-23 | 1987-06-23 | Video signal recording / playback method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62155870A JPH0817472B2 (en) | 1987-06-23 | 1987-06-23 | Video signal recording / playback method |
Publications (3)
Publication Number | Publication Date |
---|---|
JPS64871A true JPS64871A (en) | 1989-01-05 |
JPH01871A JPH01871A (en) | 1989-01-05 |
JPH0817472B2 JPH0817472B2 (en) | 1996-02-21 |
Family
ID=15615303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62155870A Expired - Fee Related JPH0817472B2 (en) | 1987-06-23 | 1987-06-23 | Video signal recording / playback method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0817472B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03132276A (en) * | 1989-10-18 | 1991-06-05 | Sharp Corp | Recording and reproducing device for video signal |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59138175A (en) * | 1983-01-28 | 1984-08-08 | Sony Corp | Recording device of video signal |
JPS6177107A (en) * | 1984-09-21 | 1986-04-19 | Sony Corp | Recording system for video signal |
JPS61126880A (en) * | 1984-11-26 | 1986-06-14 | Canon Inc | Information regenerating device |
JPS61269473A (en) * | 1985-05-23 | 1986-11-28 | Mitsubishi Electric Corp | Magnetic tape reproducing device |
-
1987
- 1987-06-23 JP JP62155870A patent/JPH0817472B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59138175A (en) * | 1983-01-28 | 1984-08-08 | Sony Corp | Recording device of video signal |
JPS6177107A (en) * | 1984-09-21 | 1986-04-19 | Sony Corp | Recording system for video signal |
JPS61126880A (en) * | 1984-11-26 | 1986-06-14 | Canon Inc | Information regenerating device |
JPS61269473A (en) * | 1985-05-23 | 1986-11-28 | Mitsubishi Electric Corp | Magnetic tape reproducing device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03132276A (en) * | 1989-10-18 | 1991-06-05 | Sharp Corp | Recording and reproducing device for video signal |
Also Published As
Publication number | Publication date |
---|---|
JPH0817472B2 (en) | 1996-02-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |