JPS6421704A - Floppy disk controller - Google Patents

Floppy disk controller

Info

Publication number
JPS6421704A
JPS6421704A JP17591487A JP17591487A JPS6421704A JP S6421704 A JPS6421704 A JP S6421704A JP 17591487 A JP17591487 A JP 17591487A JP 17591487 A JP17591487 A JP 17591487A JP S6421704 A JPS6421704 A JP S6421704A
Authority
JP
Japan
Prior art keywords
floppy disk
signal
data
delay
interchangeability
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
JP17591487A
Other languages
Japanese (ja)
Inventor
Tetsuo Shinagawa
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 JP17591487A priority Critical patent/JPS6421704A/en
Publication of JPS6421704A publication Critical patent/JPS6421704A/en
Pending legal-status Critical Current

Links

Landscapes

  • Digital Magnetic Recording (AREA)

Abstract

PURPOSE:To secure the interchangeability of a floppy disk with an on-going device, by performing the operation control of a delay time found by a track position-delay time conversion means on a floppy disk device using a wide-write/ narrow-read head. CONSTITUTION:A floppy disk control circuit 5 which as least outputs a signal WG7 to instruct the recording of data to the floppy disk device 6 and a signal WD9 including the data to be written on a data field, and delay means 1 and 2 which delay the signal WG7 and the signal WD9, etc., are provided. By delaying the signal WG7 and the signal WD9 for a prescribed time, the operation control of the floppy disk device using the wide-write/narrow-read head is performed. In such a way, it is possible to record the data with the same disk format as the one using an on-going tunnel-erasing head, and to secure the interchangeability of the floppy disk between both floppy disk devices.
JP17591487A 1987-07-16 1987-07-16 Floppy disk controller Pending JPS6421704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17591487A JPS6421704A (en) 1987-07-16 1987-07-16 Floppy disk controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17591487A JPS6421704A (en) 1987-07-16 1987-07-16 Floppy disk controller

Publications (1)

Publication Number Publication Date
JPS6421704A true JPS6421704A (en) 1989-01-25

Family

ID=16004453

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17591487A Pending JPS6421704A (en) 1987-07-16 1987-07-16 Floppy disk controller

Country Status (1)

Country Link
JP (1) JPS6421704A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH035954A (en) * 1989-06-01 1991-01-11 Nec Corp Disk device
US6034205A (en) * 1997-07-25 2000-03-07 Solvay (Societe Anonyme) Thermoplastic polymers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH035954A (en) * 1989-06-01 1991-01-11 Nec Corp Disk device
US6034205A (en) * 1997-07-25 2000-03-07 Solvay (Societe Anonyme) Thermoplastic polymers

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