JPS5468614A - Tracking control device of magnetic picture recording reproducer - Google Patents
Tracking control device of magnetic picture recording reproducerInfo
- Publication number
- JPS5468614A JPS5468614A JP13592677A JP13592677A JPS5468614A JP S5468614 A JPS5468614 A JP S5468614A JP 13592677 A JP13592677 A JP 13592677A JP 13592677 A JP13592677 A JP 13592677A JP S5468614 A JPS5468614 A JP S5468614A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- signals
- circuit
- control
- tracking control
- 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
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
PURPOSE: To dispense with control signal and control track, by performing tracking control with pilot signal recorded in the color signal in the vertical synchronizing signal period.
CONSTITUTION: Reproduced RF signal is divided into a luminance signal and a color signal by a circuit 8, and the color signal is high band transformed in a circuit 10 to be signal C. Gate circuits 54, 55 pick up pilot signals V1', V3', which are recorded in the signal C, and said polot signals are rectified by diodes D1, D2 to be signals (f), (g). These signals are supplied to clamp circuits 57, 58, and passed through filters 59, 60 to be direct-current voltages corresponding to the amplitudes of reproduction pilot signals. Then, these voltages enter a comparator circuit 61 and become high or low voltage, based on the voltage when the amplitudes of signals V1' and V3' are equal to ech other. Therefore, by constituting the error voltage of circuit 61 so that the rotating speed of capstan motor be higher when V1'>V3' and lower when V1'<V3', the head can be stably scanned on the recording track without using control signals or the like.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13592677A JPS5468614A (en) | 1977-11-11 | 1977-11-11 | Tracking control device of magnetic picture recording reproducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13592677A JPS5468614A (en) | 1977-11-11 | 1977-11-11 | Tracking control device of magnetic picture recording reproducer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5468614A true JPS5468614A (en) | 1979-06-01 |
JPS611814B2 JPS611814B2 (en) | 1986-01-20 |
Family
ID=15163075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13592677A Granted JPS5468614A (en) | 1977-11-11 | 1977-11-11 | Tracking control device of magnetic picture recording reproducer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5468614A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0048581A1 (en) * | 1980-09-17 | 1982-03-31 | Matsushita Electric Industrial Co., Ltd. | Signal tracking method in a tracking control signal recording and reproducing system |
-
1977
- 1977-11-11 JP JP13592677A patent/JPS5468614A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0048581A1 (en) * | 1980-09-17 | 1982-03-31 | Matsushita Electric Industrial Co., Ltd. | Signal tracking method in a tracking control signal recording and reproducing system |
Also Published As
Publication number | Publication date |
---|---|
JPS611814B2 (en) | 1986-01-20 |
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