JPS5665353A - Magnetic recording and reproducing device - Google Patents
Magnetic recording and reproducing deviceInfo
- Publication number
- JPS5665353A JPS5665353A JP13888179A JP13888179A JPS5665353A JP S5665353 A JPS5665353 A JP S5665353A JP 13888179 A JP13888179 A JP 13888179A JP 13888179 A JP13888179 A JP 13888179A JP S5665353 A JPS5665353 A JP S5665353A
- Authority
- JP
- Japan
- Prior art keywords
- head
- phase
- reproduced
- control signal
- disorder
- 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
Abstract
PURPOSE: To eliminate the disorder of a reproduced picture by reducing a tracking error at a joint part where joint recording is donw, by making a servo system for tracking respond by detecting a phase change of a control signal by the 2nd head.
CONSTITUTION: The 1st head 21 records a control signal. The 2nd head 22 is provided at a position preceding the above-mentioned position. In reproduction mode, the reproduced control signal from head 22 is supplied to phase comparator 30, where it is phase-compared with signal PG showing the rotary phase of the drum. The comparison output is supplied to motor 70 by way of low-pass filter 50 and amplifier 60 to control the rotary phase of the drum. Consequently, a shift in reproduced track is distributed before and behind a joint part by adequately selecting the transfer functions of filter 50 and the mechanism part and is -90° or +90° at a maximum, so that the disorder of a reproduced picture can nearly be eliminated.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13888179A JPS5665353A (en) | 1979-10-26 | 1979-10-26 | Magnetic recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13888179A JPS5665353A (en) | 1979-10-26 | 1979-10-26 | Magnetic recording and reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5665353A true JPS5665353A (en) | 1981-06-03 |
Family
ID=15232288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13888179A Pending JPS5665353A (en) | 1979-10-26 | 1979-10-26 | Magnetic recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5665353A (en) |
-
1979
- 1979-10-26 JP JP13888179A patent/JPS5665353A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3279404D1 (en) | Editing control methods and apparatus for video tape recorders | |
JPH0210500B2 (en) | ||
JPS57210783A (en) | Magnetic reproducing device | |
JPS5669981A (en) | Phase servo circuit | |
MY109162A (en) | Improved magnetic recording/reproducing apparatus using segment recording system | |
JPS56158581A (en) | Recording and playback system for rotating recording medium | |
JPS5665353A (en) | Magnetic recording and reproducing device | |
US3668310A (en) | Magnetic video recording and reproducing apparatus | |
JPS54133817A (en) | Recording regenerator for video signal | |
JPS5718024A (en) | Head height position controller of magnetic recording and reproducing device | |
JPS5528547A (en) | Magnetic recorder/reproducer | |
JPS542018A (en) | Magnetic tape run driving system for magnetic recording and reproducing unit | |
JPS55142422A (en) | Reproducing unit from disc shape recording medium | |
JPS55114085A (en) | Recording and reproducing device | |
JPS57141066A (en) | Capstan control system for magnetic recording and reproducing device | |
JPS5256906A (en) | Tracking control signal recording and reproduction system in magnetic recording and playback apparatus | |
JPS5254319A (en) | Magnetic video recorder | |
JPS6093655A (en) | Reproducing device of information signal | |
JPS5443707A (en) | Head position controller for vtr | |
JPS5694505A (en) | Magnetic recording and reproducing system | |
JPS6453376A (en) | Synchronizing controller | |
JPS5654633A (en) | Tracking device | |
JPS5661074A (en) | Recording and playback system for tape position alignment signal for magnetic recorder | |
JPS57210491A (en) | Digital audio editing system | |
JPS5422810A (en) | Control system for video recording and reproducing apparatus |