JPS6421750A - Floppy disk device - Google Patents

Floppy disk device

Info

Publication number
JPS6421750A
JPS6421750A JP17805887A JP17805887A JPS6421750A JP S6421750 A JPS6421750 A JP S6421750A JP 17805887 A JP17805887 A JP 17805887A JP 17805887 A JP17805887 A JP 17805887A JP S6421750 A JPS6421750 A JP S6421750A
Authority
JP
Japan
Prior art keywords
magnetic head
floppy disk
circuit
positioning completion
index
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
JP17805887A
Other languages
Japanese (ja)
Inventor
Terumitsu Okamoto
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP17805887A priority Critical patent/JPS6421750A/en
Publication of JPS6421750A publication Critical patent/JPS6421750A/en
Pending legal-status Critical Current

Links

Landscapes

  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

PURPOSE:To enable to control a floppy disk device even without the receiving means of a positioning completion signal by prohibiting the transmission of a read data signal and an index signal until it is detected that the position error of a magnetic head against an objective track comes smaller than a prescribed value. CONSTITUTION:It is constituted of the magnetic head 11, a regeneration circuit 12, a magnetic head position detection circuit 13, a positioning completion signal output circuit 14, an index detector 15, an index pulse generation circuit 16 and a prohibition circuit 17. Then, until the positioning completion signal output circuit 14 detects that the position error of the magnetic head 11 against the objective track, detected by the magnetic head position detection circuit 13, comes smaller than a predetermined definite value, the transmission of the read data signal and the index signal to the floppy disk control device 2 is prohibited. Thus, even when the means to receive the positioning completion signal is not provided, the floppy disk device 1 can be controlled.
JP17805887A 1987-07-16 1987-07-16 Floppy disk device Pending JPS6421750A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17805887A JPS6421750A (en) 1987-07-16 1987-07-16 Floppy disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17805887A JPS6421750A (en) 1987-07-16 1987-07-16 Floppy disk device

Publications (1)

Publication Number Publication Date
JPS6421750A true JPS6421750A (en) 1989-01-25

Family

ID=16041871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17805887A Pending JPS6421750A (en) 1987-07-16 1987-07-16 Floppy disk device

Country Status (1)

Country Link
JP (1) JPS6421750A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59203270A (en) * 1983-04-30 1984-11-17 Matsushita Electric Ind Co Ltd Recording and reproducing method
JPS62139178A (en) * 1985-12-12 1987-06-22 Nec Corp Floppy disk device
JPS62275351A (en) * 1985-10-31 1987-11-30 Teac Co Magnetic disk device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59203270A (en) * 1983-04-30 1984-11-17 Matsushita Electric Ind Co Ltd Recording and reproducing method
JPS62275351A (en) * 1985-10-31 1987-11-30 Teac Co Magnetic disk device
JPS62139178A (en) * 1985-12-12 1987-06-22 Nec Corp Floppy disk device

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