JPS6473521A - Video head driving device - Google Patents
Video head driving deviceInfo
- Publication number
- JPS6473521A JPS6473521A JP62230608A JP23060887A JPS6473521A JP S6473521 A JPS6473521 A JP S6473521A JP 62230608 A JP62230608 A JP 62230608A JP 23060887 A JP23060887 A JP 23060887A JP S6473521 A JPS6473521 A JP S6473521A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- reswinging
- sawtooth wave
- period
- contact
- 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 smoothly and correctly scan by means of a video head without the resonance of an actuator by extracting a sawtooth wave signal in a period in which the video head is brought into contact with a magnetic tape and extracting a reswinging signal in the period in which they are not in contact. CONSTITUTION:A sawtooth wave signal generating means 51 generates a sawtooth wave signal C for driving an actuator so that video heads 1 and 2 can scan on the track of the magnetic tape in a confirmity with a reproduction mode, and reswinging signal generating means 55 and 56 generate a reswinging signal (d) to combine the reswinging parts of the sawtooth wave signal by means of a smooth waveform. A signal synthesizing means 50 extracts the sawtooth wave signal C in the period in which the video heads 1 and 2 are brought into contact with a magnetic tape 23, and extracts the reswinging signal (d) in the period in which they are not in contact. Consequently, to actuators 21 and 22, a driving signal, in which a tracking signal is added to the synthesizing signal, is impressed. Thus, the reswinging actions of the actuators 21 and 22 can be smoothly executed, and the problems of the resonance, etc., can be prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62230608A JPS6473521A (en) | 1987-09-14 | 1987-09-14 | Video head driving device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62230608A JPS6473521A (en) | 1987-09-14 | 1987-09-14 | Video head driving device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6473521A true JPS6473521A (en) | 1989-03-17 |
Family
ID=16910423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62230608A Pending JPS6473521A (en) | 1987-09-14 | 1987-09-14 | Video head driving device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6473521A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5345212A (en) * | 1976-10-05 | 1978-04-22 | Sony Corp | Corrector for tracking |
JPS6010414A (en) * | 1983-06-30 | 1985-01-19 | Nec Home Electronics Ltd | Shaping circuit of deflecting voltage |
JPS60158782A (en) * | 1984-01-27 | 1985-08-20 | Sony Corp | Video tape recorder |
-
1987
- 1987-09-14 JP JP62230608A patent/JPS6473521A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5345212A (en) * | 1976-10-05 | 1978-04-22 | Sony Corp | Corrector for tracking |
JPS6010414A (en) * | 1983-06-30 | 1985-01-19 | Nec Home Electronics Ltd | Shaping circuit of deflecting voltage |
JPS60158782A (en) * | 1984-01-27 | 1985-08-20 | Sony Corp | Video tape recorder |
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