JPS6455725A - Rotary drum controller - Google Patents

Rotary drum controller

Info

Publication number
JPS6455725A
JPS6455725A JP21329687A JP21329687A JPS6455725A JP S6455725 A JPS6455725 A JP S6455725A JP 21329687 A JP21329687 A JP 21329687A JP 21329687 A JP21329687 A JP 21329687A JP S6455725 A JPS6455725 A JP S6455725A
Authority
JP
Japan
Prior art keywords
driving
drum
vicinity
driving part
head
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
JP21329687A
Other languages
Japanese (ja)
Other versions
JPH0636245B2 (en
Inventor
Akifumi Kodama
Masanori Kojima
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 JP21329687A priority Critical patent/JPH0636245B2/en
Priority to GB8820305A priority patent/GB2209237B/en
Priority to DE19883829050 priority patent/DE3829050A1/en
Priority to US07/236,988 priority patent/US4970611A/en
Priority to GB8820306A priority patent/GB2209238B/en
Priority to DE19883829040 priority patent/DE3829040A1/en
Publication of JPS6455725A publication Critical patent/JPS6455725A/en
Publication of JPH0636245B2 publication Critical patent/JPH0636245B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To prevent deterioration of a tracking at the time of reproducting and to always stably execute the noiseless reproduction with a satisfactory S/N by current-driving a driving part at the period related to the rotation period of a rotary drum and in the vicinity of a basic frequency and voltage-driving it in the vicinity of a mechanical resonance frequency. CONSTITUTION:On a driving part 4a of a rotary drum driving device, a head 5 is arranged which is cooperated with a coil and drives a magnetic tape 13 in the shaft direction and a current is supplied from a contact 14 to the driving part 4a. The contact 14 is brought into contact with an electrode 15 and connected electrically to the coil. The head 5 is connected to an upper transformer 7, and a lower transformer 8 coupled magnetically with the transformer 7 and the driving part 4a are housed, and arranged into the drum by an upper drum 3 and a lower drum 2. The driving part 4a of the driving device is current- driven at the period related to the rotation period of the drum and in the vicinity of the driving basic frequency, voltage driven in the vicinity of the mechanical resonance frequency and the head locus at the time of recording and the head locus at the time of reproducing are made coincident.
JP21329687A 1987-08-27 1987-08-27 Rotating drum controller Expired - Lifetime JPH0636245B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP21329687A JPH0636245B2 (en) 1987-08-27 1987-08-27 Rotating drum controller
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
US07/236,988 US4970611A (en) 1987-08-27 1988-08-26 Variable tape speed head-carrier drum control apparatus
GB8820306A GB2209238B (en) 1987-08-27 1988-08-26 Head-carrier drum control apparatus
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
JP21329687A JPH0636245B2 (en) 1987-08-27 1987-08-27 Rotating drum controller

Publications (2)

Publication Number Publication Date
JPS6455725A true JPS6455725A (en) 1989-03-02
JPH0636245B2 JPH0636245B2 (en) 1994-05-11

Family

ID=16636773

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21329687A Expired - Lifetime JPH0636245B2 (en) 1987-08-27 1987-08-27 Rotating drum controller

Country Status (1)

Country Link
JP (1) JPH0636245B2 (en)

Also Published As

Publication number Publication date
JPH0636245B2 (en) 1994-05-11

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