JPS5478109A - Magnetic recording, reading and reproducing system - Google Patents

Magnetic recording, reading and reproducing system

Info

Publication number
JPS5478109A
JPS5478109A JP14514177A JP14514177A JPS5478109A JP S5478109 A JPS5478109 A JP S5478109A JP 14514177 A JP14514177 A JP 14514177A JP 14514177 A JP14514177 A JP 14514177A JP S5478109 A JPS5478109 A JP S5478109A
Authority
JP
Japan
Prior art keywords
flop
flip
signal
magnetic recording
reading
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
JP14514177A
Other languages
Japanese (ja)
Inventor
Shizuo Sato
Toyoki Iwama
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14514177A priority Critical patent/JPS5478109A/en
Publication of JPS5478109A publication Critical patent/JPS5478109A/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
    • G11B5/09—Digital recording

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To obtain the reproduction output of digital magnetic recording with a simple circuit by using an RS flip-flop. CONSTITUTION:A reading magnetic head 1 is connected to an RS flip-flop 10 by way of an operational amplifier 2, transformer 5, diodes 6, 7 and waveform amplifiers 8, 9. As a result, the leading edge differentiation signal and trailing edge differentiation signal of the magnetic recording signal having been read with the reading magnetic head 1 are respectively amplified, rectified and shaped, after which they are inputted to the RS flip-flop 10, then the leading edge differentiation signal sets or resets the RS flip-flop 10 and the trailing edge differentiation signal resets or sets the same, thus the output of the RS flip-flop 10 becomes reproduction signal. Hence, the reproduction signal may be obtained without using any differentiation circuit and integrating circuit.
JP14514177A 1977-12-05 1977-12-05 Magnetic recording, reading and reproducing system Pending JPS5478109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14514177A JPS5478109A (en) 1977-12-05 1977-12-05 Magnetic recording, reading and reproducing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14514177A JPS5478109A (en) 1977-12-05 1977-12-05 Magnetic recording, reading and reproducing system

Publications (1)

Publication Number Publication Date
JPS5478109A true JPS5478109A (en) 1979-06-22

Family

ID=15378354

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14514177A Pending JPS5478109A (en) 1977-12-05 1977-12-05 Magnetic recording, reading and reproducing system

Country Status (1)

Country Link
JP (1) JPS5478109A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04223614A (en) * 1990-03-23 1992-08-13 Power Integrations Inc Pulse width modulator control circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04223614A (en) * 1990-03-23 1992-08-13 Power Integrations Inc Pulse width modulator control circuit

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