JPS5674807A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPS5674807A
JPS5674807A JP15007679A JP15007679A JPS5674807A JP S5674807 A JPS5674807 A JP S5674807A JP 15007679 A JP15007679 A JP 15007679A JP 15007679 A JP15007679 A JP 15007679A JP S5674807 A JPS5674807 A JP S5674807A
Authority
JP
Japan
Prior art keywords
read
write
reproduction
data
magnetic heads
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
JP15007679A
Other languages
Japanese (ja)
Inventor
Fukashi Oi
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 JP15007679A priority Critical patent/JPS5674807A/en
Publication of JPS5674807A publication Critical patent/JPS5674807A/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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE:To enhance the transfer velocity of the data to a higher-rank unit, by performing a simultaneous recording/reproduction with two or more magnetic heads via several pairs of read/write circuits. CONSTITUTION:The read/write is controlled via two pairs of the read/write circuit parts 13 for two or more units of the magnetic heads 12 and 12 for both surfaces of each of the disks 11 which form the disk stack 1 which are controlled for their rotations by the servo circuit 14 or the like. Thus the transfer velocity of the data is enhanced greatly in comparison with the unit which performs a serial process by a head having the same recording density through a parallel process, since a simultaneous recording/reproduction is carried out by two or more heads and in synchronization with each other.
JP15007679A 1979-11-21 1979-11-21 Magnetic disk device Pending JPS5674807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15007679A JPS5674807A (en) 1979-11-21 1979-11-21 Magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15007679A JPS5674807A (en) 1979-11-21 1979-11-21 Magnetic disk device

Publications (1)

Publication Number Publication Date
JPS5674807A true JPS5674807A (en) 1981-06-20

Family

ID=15488986

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15007679A Pending JPS5674807A (en) 1979-11-21 1979-11-21 Magnetic disk device

Country Status (1)

Country Link
JP (1) JPS5674807A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2561428A1 (en) * 1984-03-16 1985-09-20 Cii Honeywell Bull RECORDING METHOD IN DISK MEMORY AND DISK MEMORY SYSTEM
US5457583A (en) * 1991-07-18 1995-10-10 Victor Company Of Japan, Ltd. Disc recorder for recording information

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2561428A1 (en) * 1984-03-16 1985-09-20 Cii Honeywell Bull RECORDING METHOD IN DISK MEMORY AND DISK MEMORY SYSTEM
US5457583A (en) * 1991-07-18 1995-10-10 Victor Company Of Japan, Ltd. Disc recorder for recording information

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