JPS6460811A - Rotary drum controller - Google Patents

Rotary drum controller

Info

Publication number
JPS6460811A
JPS6460811A JP21840387A JP21840387A JPS6460811A JP S6460811 A JPS6460811 A JP S6460811A JP 21840387 A JP21840387 A JP 21840387A JP 21840387 A JP21840387 A JP 21840387A JP S6460811 A JPS6460811 A JP S6460811A
Authority
JP
Japan
Prior art keywords
head
displacement
driving part
coil
control current
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
JP21840387A
Other languages
Japanese (ja)
Other versions
JPH0677296B2 (en
Inventor
Akifumi Kodama
Akira Sano
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 JP21840387A priority Critical patent/JPH0677296B2/en
Priority to GB8820306A priority patent/GB2209238B/en
Priority to GB8820305A priority patent/GB2209237B/en
Priority to DE19883829050 priority patent/DE3829050A1/en
Priority to DE19883829040 priority patent/DE3829040A1/en
Publication of JPS6460811A publication Critical patent/JPS6460811A/en
Publication of JPH0677296B2 publication Critical patent/JPH0677296B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To prevent a driving part from being thermally damaged due to the self- heating of the part, by detecting the control current supplied to the coil of the driving part, and limiting a control current so that the displacement of a head can be set at the relation (required speed - 1) X track pitch < limitation of displacement of head < limitation of structural displacement of head. CONSTITUTION:A driving circuit which drives the driving part consisting of a coil 42 arranged in a magnetic circuit and the head displaceable in the width direction of a tape by cooperating with the coil at a period related to the rotating period of a rotary drum 3, and a current limiter which limits the control current so that the displacement of the head 5 can be set at relation (required speed - 1) X track pitch < displacement of head < structural displacement limitation of head are provided. In other words, by supplying the control current from the outside to the driving part and displacing the head 5 in the width direction of the tape magnetically by cooperating with the coil 42, tracking is performed to conform a head locus with a recording locus at the time of reproduction. In such a way, it is possible to prevent the driving part from being damaged due to the self-heating of the part, and to prevent mechanical damage from being generated by eliminating the excessive displacement of the head.
JP21840387A 1987-08-27 1987-09-01 Rotating drum controller Expired - Fee Related JPH0677296B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP21840387A JPH0677296B2 (en) 1987-09-01 1987-09-01 Rotating drum controller
GB8820306A GB2209238B (en) 1987-08-27 1988-08-26 Head-carrier drum control apparatus
GB8820305A GB2209237B (en) 1987-08-27 1988-08-26 Head-carrier drum control system
DE19883829050 DE3829050A1 (en) 1987-08-27 1988-08-26 HEADBALL DRUM CONTROL SYSTEM
DE19883829040 DE3829040A1 (en) 1987-08-27 1988-08-26 HEAD BEARING DRUM CONTROL DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21840387A JPH0677296B2 (en) 1987-09-01 1987-09-01 Rotating drum controller

Publications (2)

Publication Number Publication Date
JPS6460811A true JPS6460811A (en) 1989-03-07
JPH0677296B2 JPH0677296B2 (en) 1994-09-28

Family

ID=16719364

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21840387A Expired - Fee Related JPH0677296B2 (en) 1987-08-27 1987-09-01 Rotating drum controller

Country Status (1)

Country Link
JP (1) JPH0677296B2 (en)

Also Published As

Publication number Publication date
JPH0677296B2 (en) 1994-09-28

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees