JPS6467749A - Digital magnetic recording and reproducing device - Google Patents

Digital magnetic recording and reproducing device

Info

Publication number
JPS6467749A
JPS6467749A JP62224343A JP22434387A JPS6467749A JP S6467749 A JPS6467749 A JP S6467749A JP 62224343 A JP62224343 A JP 62224343A JP 22434387 A JP22434387 A JP 22434387A JP S6467749 A JPS6467749 A JP S6467749A
Authority
JP
Japan
Prior art keywords
tape
length
head
rotary head
irrespective
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
JP62224343A
Other languages
Japanese (ja)
Other versions
JP2568576B2 (en
Inventor
Ikurou Terauchi
Takeshi Iida
Isao Yoshizaki
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 JP62224343A priority Critical patent/JP2568576B2/en
Publication of JPS6467749A publication Critical patent/JPS6467749A/en
Application granted granted Critical
Publication of JP2568576B2 publication Critical patent/JP2568576B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To stably read out data, irrespective of a tape length and a tape thickness, against rotational irregularity of a rotary head, etc., by keeping a relative speed between the tape and the head constant. CONSTITUTION:The titled device is constitutive of a comparator (data length detecting circuit) 13 for comparing a data length read out of the rotary head 11 in contact with a magnetic tape with a reference block length, and a control means (microcomputer) 14 for controlling the rotating speed of reel motors 16 and 17 for driving rotatively reels to be wound with the magnetic tape by receiving outputs of the reel motors 16 and 17 and the comparator 13 as its inputs. Then, the relative speed between the head and the tape is kept constant by this speed control loop. By this method, irrespective of the tape length and the tape thickness, and being strongly against the rotational irregularity of the rotary head, the readout can stably be carried out.
JP62224343A 1987-09-08 1987-09-08 Digital magnetic recording / reproducing device Expired - Fee Related JP2568576B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62224343A JP2568576B2 (en) 1987-09-08 1987-09-08 Digital magnetic recording / reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62224343A JP2568576B2 (en) 1987-09-08 1987-09-08 Digital magnetic recording / reproducing device

Publications (2)

Publication Number Publication Date
JPS6467749A true JPS6467749A (en) 1989-03-14
JP2568576B2 JP2568576B2 (en) 1997-01-08

Family

ID=16812272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62224343A Expired - Fee Related JP2568576B2 (en) 1987-09-08 1987-09-08 Digital magnetic recording / reproducing device

Country Status (1)

Country Link
JP (1) JP2568576B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04192148A (en) * 1990-11-27 1992-07-10 Sharp Corp Data reproducing device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6280854A (en) * 1985-10-04 1987-04-14 Hitachi Ltd Tape speed controller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6280854A (en) * 1985-10-04 1987-04-14 Hitachi Ltd Tape speed controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04192148A (en) * 1990-11-27 1992-07-10 Sharp Corp Data reproducing device

Also Published As

Publication number Publication date
JP2568576B2 (en) 1997-01-08

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Legal Events

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