JPS6473521A - Video head driving device - Google Patents

Video head driving device

Info

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
Application number
JP62230608A
Other languages
Japanese (ja)
Inventor
Yutaka Suzuki
Tetsuo Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62230608A priority Critical patent/JPS6473521A/en
Publication of JPS6473521A publication Critical patent/JPS6473521A/en
Pending legal-status Critical Current

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.
JP62230608A 1987-09-14 1987-09-14 Video head driving device Pending JPS6473521A (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
JPS57210783A (en) Magnetic reproducing device
JPS54111215A (en) Converter of video signals
EP0356995A3 (en) Apparatus for supplying control codes to sound field reproduction apparatus
EP0387047A3 (en) Magneto-optical recording apparatus
ES2022844B3 (en) VIDEO RECORDER
JPS6473521A (en) Video head driving device
MY104786A (en) Rotary head recording and reproducing apparatus.
JPS5345509A (en) Automatic tracking apparatus
EP0392789A3 (en) Tracking control device for a magnetic recording and reproducing apparatus
JPS5457826A (en) Video tape recorder
JPS5271212A (en) Magnetic playback apparatus
JPS54138414A (en) Rotary head type magnetic recorder-reproducer
JPS5467314A (en) Magnetic recording reproducer
JPS54140414A (en) Picture signal reproducing method
SU911603A1 (en) Device for visualization of information reproduced from magnetic tape
JPS56114486A (en) Magnetic video recording and reproducing device providing two-head helical scanning
JPS55135305A (en) Sound reproducing device with picture display
JPS6410409A (en) Magnetic recording and reproducing device
JPS6486364A (en) Recording disk and manufacture thereof
GB1116075A (en) Magnetic tape recording and playback system
JPS5421315A (en) Magnetic recorder
JPS6421704A (en) Floppy disk controller
JPS6245731U (en)
JPS55153129A (en) Signal reproducing device
JPS5680971A (en) Reproduction system for video signal