JPS6464110A - Magnetic recorder - Google Patents

Magnetic recorder

Info

Publication number
JPS6464110A
JPS6464110A JP22261587A JP22261587A JPS6464110A JP S6464110 A JPS6464110 A JP S6464110A JP 22261587 A JP22261587 A JP 22261587A JP 22261587 A JP22261587 A JP 22261587A JP S6464110 A JPS6464110 A JP S6464110A
Authority
JP
Japan
Prior art keywords
magnetic head
disk
detector
signal
contact
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
JP22261587A
Other languages
Japanese (ja)
Inventor
Hiroyuki Kato
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP22261587A priority Critical patent/JPS6464110A/en
Publication of JPS6464110A publication Critical patent/JPS6464110A/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
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/10—Indicating arrangements; Warning arrangements

Abstract

PURPOSE:To prevent beforehand a downfall of a head, and to prevent a data from being damaged suddenly, by monitoring a deteriorated state of a magnetic head and a disk by a detector which is attached to the magnetic head. CONSTITUTION:An interval of a magnetic head 2 and a disk 1 is generally about 0.3mum in a low part. When the deterioration of the magnetic head and the disk 1 has advanced, the surface becomes rough, therefore, a contact starts partially. When the contact starts, a very small vibration is generated in the magnetic head 2, and its vibration is converted to an electric signal by a detector which is attached to the magnetic head 2. The electric signal which is obtained by this detector 3 is amplified by an amplifier 4, and subsequently, goes into a breaker 5, a noise component is eliminated thereby, only a signal component due to a contact of the magnetic head 2 and the disk 1 is fetched, its signal is compared with an output of a reference signal generator 6 by a discriminator 7, and if it is larger than a reference signal, an alarm of an abnormality is outputted.
JP22261587A 1987-09-04 1987-09-04 Magnetic recorder Pending JPS6464110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22261587A JPS6464110A (en) 1987-09-04 1987-09-04 Magnetic recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22261587A JPS6464110A (en) 1987-09-04 1987-09-04 Magnetic recorder

Publications (1)

Publication Number Publication Date
JPS6464110A true JPS6464110A (en) 1989-03-10

Family

ID=16785232

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22261587A Pending JPS6464110A (en) 1987-09-04 1987-09-04 Magnetic recorder

Country Status (1)

Country Link
JP (1) JPS6464110A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0464787A2 (en) * 1990-07-03 1992-01-08 Mitsubishi Denki Kabushiki Kaisha Storage device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0464787A2 (en) * 1990-07-03 1992-01-08 Mitsubishi Denki Kabushiki Kaisha Storage device
EP0464787A3 (en) * 1990-07-03 1992-02-26 Mitsubishi Denki Kabushiki Kaisha Storage device

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