JPS6432469A - Floppy disk drive device - Google Patents

Floppy disk drive device

Info

Publication number
JPS6432469A
JPS6432469A JP18851887A JP18851887A JPS6432469A JP S6432469 A JPS6432469 A JP S6432469A JP 18851887 A JP18851887 A JP 18851887A JP 18851887 A JP18851887 A JP 18851887A JP S6432469 A JPS6432469 A JP S6432469A
Authority
JP
Japan
Prior art keywords
slow
revolution
speed
stepping motor
floppy disk
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
JP18851887A
Other languages
Japanese (ja)
Inventor
Torao Ide
Yutaka Tamura
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.)
Toshiba Tec Corp
Original Assignee
Tokyo Electric 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 Tokyo Electric Co Ltd filed Critical Tokyo Electric Co Ltd
Priority to JP18851887A priority Critical patent/JPS6432469A/en
Publication of JPS6432469A publication Critical patent/JPS6432469A/en
Pending legal-status Critical Current

Links

Landscapes

  • Rotational Drive Of Disk (AREA)

Abstract

PURPOSE:To quickly return to a constant speed rotation by providing a slow-up means for bringing a floppy disk to slow-up at the time of starting a rotation of a stepping motor, a revolution speed detecting means for detecting the speed of revolution of the disk, and a demodulating means for executing slow-up again at the time of step-out of the stepping motor. CONSTITUTION:The titled device is provided with a slow-up means for bringing a floppy disk 5 to slow-up at the time of starting a rotation of a stepping motor 6. Also, a revolution speed detection means 7 for detecting the speed of revolution of the floppy disk 5 is provided, and a demodulating means for executing slow-up again at the time of step-out of the stepping motor 6 is provided. The stopping motor causes cocking, therefore, it is used with inertia. In this state, the speed of revolution is always monitored by the revolution speed detecting means, and when the stepping motor causes step-out, the slow-up means is operated again by the demodulating means. In such a way, it can be executed quickly to return to a constant speed rotation.
JP18851887A 1987-07-28 1987-07-28 Floppy disk drive device Pending JPS6432469A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18851887A JPS6432469A (en) 1987-07-28 1987-07-28 Floppy disk drive device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18851887A JPS6432469A (en) 1987-07-28 1987-07-28 Floppy disk drive device

Publications (1)

Publication Number Publication Date
JPS6432469A true JPS6432469A (en) 1989-02-02

Family

ID=16225116

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18851887A Pending JPS6432469A (en) 1987-07-28 1987-07-28 Floppy disk drive device

Country Status (1)

Country Link
JP (1) JPS6432469A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06195862A (en) * 1992-12-22 1994-07-15 Teac Corp Disk device
US7085200B2 (en) 1997-02-27 2006-08-01 Matsushita Electric Industrial Co., Ltd. Stepping motor controlling method and disk apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06195862A (en) * 1992-12-22 1994-07-15 Teac Corp Disk device
US7085200B2 (en) 1997-02-27 2006-08-01 Matsushita Electric Industrial Co., Ltd. Stepping motor controlling method and disk apparatus
US7106668B2 (en) 1997-02-27 2006-09-12 Matsushita Electric Industrial Co., Ltd. Disk drive apparatus

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