JPS573249A - Control signal reproducer - Google Patents

Control signal reproducer

Info

Publication number
JPS573249A
JPS573249A JP7699080A JP7699080A JPS573249A JP S573249 A JPS573249 A JP S573249A JP 7699080 A JP7699080 A JP 7699080A JP 7699080 A JP7699080 A JP 7699080A JP S573249 A JPS573249 A JP S573249A
Authority
JP
Japan
Prior art keywords
head
control signal
effect type
magnetic resistance
resistance effect
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
JP7699080A
Other languages
Japanese (ja)
Other versions
JPS6231416B2 (en
Inventor
Masaaki 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.)
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 JP7699080A priority Critical patent/JPS573249A/en
Publication of JPS573249A publication Critical patent/JPS573249A/en
Publication of JPS6231416B2 publication Critical patent/JPS6231416B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
    • G11B15/087—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing recorded signals

Abstract

PURPOSE:To reproduce a control signal stably at an optional tape running speed including the stopping of a tape without reference to fluctuations of temperature and a secular change, by using a magnetic resistance effect type head. CONSTITUTION:From a magnetic resistance effect type head 102 having nearly the same characteristics with a magnetic resistance effect type head 101, the reference resistance value of the head 101 is determined. Then, a current is flowed from a voltage source 112 via a resistance R1 to the head 101, and a current is flowed via a resistance R2 to the head 102; and a difference in voltage drop between the head 101 ane the head 102 is amplified by differential amplifier 106, whose output is held by a sample holding circuit 108, and the held voltage is applied to the R2 to obtain a reproduced control signal from the output terminal 107 of the amplifier 106.
JP7699080A 1980-06-06 1980-06-06 Control signal reproducer Granted JPS573249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7699080A JPS573249A (en) 1980-06-06 1980-06-06 Control signal reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7699080A JPS573249A (en) 1980-06-06 1980-06-06 Control signal reproducer

Publications (2)

Publication Number Publication Date
JPS573249A true JPS573249A (en) 1982-01-08
JPS6231416B2 JPS6231416B2 (en) 1987-07-08

Family

ID=13621207

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7699080A Granted JPS573249A (en) 1980-06-06 1980-06-06 Control signal reproducer

Country Status (1)

Country Link
JP (1) JPS573249A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02295507A (en) * 1989-05-10 1990-12-06 Yasuhiro Kazetani Folding umbrella

Also Published As

Publication number Publication date
JPS6231416B2 (en) 1987-07-08

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