JPS57141180A - Recording and reproducing device - Google Patents
Recording and reproducing deviceInfo
- Publication number
- JPS57141180A JPS57141180A JP56027315A JP2731581A JPS57141180A JP S57141180 A JPS57141180 A JP S57141180A JP 56027315 A JP56027315 A JP 56027315A JP 2731581 A JP2731581 A JP 2731581A JP S57141180 A JPS57141180 A JP S57141180A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- vertical synchronizing
- sheet
- synchronizing signal
- eccentricity
- 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
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/781—Television signal recording using magnetic recording on disks or drums
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Rotational Drive Of Disk (AREA)
Abstract
PURPOSE:To form recording tracks concentrically by providing a magnetic sheet with a reference track where a vertical synchronizing signal and a reference signal are recorded, and detecting the extent of eccentricity of the sheet by reproducing the signals on the reference track during recording. CONSTITUTION:The innermost track 2 of a magnetic sheet 1 is used as a reference track, where a vertical synchronizing signal and a reference signal containing a wobbling frequency component are recorded. In recording a video signal, the reference track 2 is scanned firstly to detect the vertical synchronizing signal, and the phase difference of the video signal from the vertical synchronizing signal and the extent of eccentricity of the sheet 1 are stored in a storage device 29. On the basis of the stored phase difference, the vertical synchronizing signal of the video signal is delayed and a driving power source 14 is controlled according to the extent of eccentricity to record the signal on a sheet 1 by a head 9 over rotary phase servocontrol over a driver 13.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56027315A JPS57141180A (en) | 1981-02-26 | 1981-02-26 | Recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56027315A JPS57141180A (en) | 1981-02-26 | 1981-02-26 | Recording and reproducing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57141180A true JPS57141180A (en) | 1982-09-01 |
JPS6352835B2 JPS6352835B2 (en) | 1988-10-20 |
Family
ID=12217647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56027315A Granted JPS57141180A (en) | 1981-02-26 | 1981-02-26 | Recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57141180A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59219080A (en) * | 1983-05-26 | 1984-12-10 | Nippon Kogaku Kk <Nikon> | Disc recording device |
JPS62170072A (en) * | 1986-01-21 | 1987-07-27 | Nippon Kogaku Kk <Nikon> | Reproducing device for discoid rotary recording medium |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02185498A (en) * | 1989-01-13 | 1990-07-19 | Abisare:Kk | Method and apparatus for holding drawing paper of plotter |
-
1981
- 1981-02-26 JP JP56027315A patent/JPS57141180A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59219080A (en) * | 1983-05-26 | 1984-12-10 | Nippon Kogaku Kk <Nikon> | Disc recording device |
JPH0430788B2 (en) * | 1983-05-26 | 1992-05-22 | ||
JPS62170072A (en) * | 1986-01-21 | 1987-07-27 | Nippon Kogaku Kk <Nikon> | Reproducing device for discoid rotary recording medium |
Also Published As
Publication number | Publication date |
---|---|
JPS6352835B2 (en) | 1988-10-20 |
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