JPS55160325A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPS55160325A
JPS55160325A JP6814179A JP6814179A JPS55160325A JP S55160325 A JPS55160325 A JP S55160325A JP 6814179 A JP6814179 A JP 6814179A JP 6814179 A JP6814179 A JP 6814179A JP S55160325 A JPS55160325 A JP S55160325A
Authority
JP
Japan
Prior art keywords
rectangular wave
waveform
circuit
signal
impedance
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
Application number
JP6814179A
Other languages
Japanese (ja)
Other versions
JPS6215931B2 (en
Inventor
Ryuhei Nakabe
Norihiko Miyawaki
Hironori Arima
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6814179A priority Critical patent/JPS55160325A/en
Publication of JPS55160325A publication Critical patent/JPS55160325A/en
Publication of JPS6215931B2 publication Critical patent/JPS6215931B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

PURPOSE: To reduce the cost by simplifying a circuit and to make it possible to drive a device even by a high-impedance circuit by supplying the high-impedance driving circuit with a signal with a rectangular wave superposed on a fixed waveform in reproduction.
CONSTITUTION: Trigger pulse A is applied from terminal 37, flipflop 38 obtains rectangular wave B and resistance 39 and capacitor 40 obtain sawtooth waveform C, which is applied to the base of transistor 41. Further, rectangular wave D obtained by inverting the polarity of rectangular wave B is supplied to the emitter of TR41 via resistance 42 and mixed waveform E of waveforms C and D is applied to the base of transistor 43 of a converting-element driving circuit of high impedance, so that waveform E shown by the dotted line will be obtained by element capacity. On the other hand, a search signal and an error signal obtained by the search signal are supplied to terminal 44 and place a reproducing head on a track with the above-mentioned signal. Consequently, the driving-stage circuit is simplified and the cost can also be lowered.
COPYRIGHT: (C)1980,JPO&Japio
JP6814179A 1979-05-30 1979-05-30 Magnetic recording and reproducing device Granted JPS55160325A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6814179A JPS55160325A (en) 1979-05-30 1979-05-30 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6814179A JPS55160325A (en) 1979-05-30 1979-05-30 Magnetic recording and reproducing device

Publications (2)

Publication Number Publication Date
JPS55160325A true JPS55160325A (en) 1980-12-13
JPS6215931B2 JPS6215931B2 (en) 1987-04-09

Family

ID=13365164

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6814179A Granted JPS55160325A (en) 1979-05-30 1979-05-30 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS55160325A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6455726A (en) * 1987-08-27 1989-03-02 Mitsubishi Electric Corp Rotary drum controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6455726A (en) * 1987-08-27 1989-03-02 Mitsubishi Electric Corp Rotary drum controller

Also Published As

Publication number Publication date
JPS6215931B2 (en) 1987-04-09

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