JPS6464110A - Magnetic recorder - Google Patents
Magnetic recorderInfo
- 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
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
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0464787A2 (en) * | 1990-07-03 | 1992-01-08 | Mitsubishi Denki Kabushiki Kaisha | Storage device |
-
1987
- 1987-09-04 JP JP22261587A patent/JPS6464110A/en active Pending
Cited By (2)
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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