JPS5718009A - Reproducing device of magnetic sheet - Google Patents

Reproducing device of magnetic sheet

Info

Publication number
JPS5718009A
JPS5718009A JP9318380A JP9318380A JPS5718009A JP S5718009 A JPS5718009 A JP S5718009A JP 9318380 A JP9318380 A JP 9318380A JP 9318380 A JP9318380 A JP 9318380A JP S5718009 A JPS5718009 A JP S5718009A
Authority
JP
Japan
Prior art keywords
potentiometer
resistance
head
gain
linear speed
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.)
Pending
Application number
JP9318380A
Other languages
Japanese (ja)
Inventor
Kenji Tateishi
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 JP9318380A priority Critical patent/JPS5718009A/en
Publication of JPS5718009A publication Critical patent/JPS5718009A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor

Abstract

PURPOSE:To assuredly prevent the lowering of the reproduced signal, by giving the compensation to the level of reproduction caused by the difference of the shift linear speed of a magnetic head or to the variation of the frequency characteristics. CONSTITUTION:When a turntable rotates, a head attaching table shifts in the radius direction. Accordingly the resistance value of a potentiometer changes. If a resistance 45 is defined as a potentiometer, the gain of an amplifying circuit can be varied by the resistance value of the potentiometer. When a potentiometer is inserted in parllel or in series to the resistance 44 or 45, not only the gain but the frequency characteristics can be controlled. Both the record/reproduction level and the high-range characteristics are lowered at the part of a head where the shift linear speed is low. In this connection, the change of resistanc value is set for the potentiometer in order to increase the degree of amplification to the high-range frequency.
JP9318380A 1980-07-07 1980-07-07 Reproducing device of magnetic sheet Pending JPS5718009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9318380A JPS5718009A (en) 1980-07-07 1980-07-07 Reproducing device of magnetic sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9318380A JPS5718009A (en) 1980-07-07 1980-07-07 Reproducing device of magnetic sheet

Publications (1)

Publication Number Publication Date
JPS5718009A true JPS5718009A (en) 1982-01-29

Family

ID=14075456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9318380A Pending JPS5718009A (en) 1980-07-07 1980-07-07 Reproducing device of magnetic sheet

Country Status (1)

Country Link
JP (1) JPS5718009A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5362509A (en) * 1976-11-16 1978-06-05 Toshiba Corp Recording-reproducing method for rotary magnetic disk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5362509A (en) * 1976-11-16 1978-06-05 Toshiba Corp Recording-reproducing method for rotary magnetic disk

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