JPS60136910A - 磁気ヘツドの断線異常検出回路 - Google Patents

磁気ヘツドの断線異常検出回路

Info

Publication number
JPS60136910A
JPS60136910A JP24388883A JP24388883A JPS60136910A JP S60136910 A JPS60136910 A JP S60136910A JP 24388883 A JP24388883 A JP 24388883A JP 24388883 A JP24388883 A JP 24388883A JP S60136910 A JPS60136910 A JP S60136910A
Authority
JP
Japan
Prior art keywords
magnetic head
circuit
voltage
input signal
switched
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.)
Granted
Application number
JP24388883A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0572646B2 (enrdf_load_stackoverflow
Inventor
Maki Yoshinaga
吉永　真樹
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 JP24388883A priority Critical patent/JPS60136910A/ja
Publication of JPS60136910A publication Critical patent/JPS60136910A/ja
Publication of JPH0572646B2 publication Critical patent/JPH0572646B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/455—Arrangements for functional testing of heads; Measuring arrangements for heads
    • 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

Landscapes

  • Digital Magnetic Recording (AREA)
JP24388883A 1983-12-26 1983-12-26 磁気ヘツドの断線異常検出回路 Granted JPS60136910A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24388883A JPS60136910A (ja) 1983-12-26 1983-12-26 磁気ヘツドの断線異常検出回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24388883A JPS60136910A (ja) 1983-12-26 1983-12-26 磁気ヘツドの断線異常検出回路

Publications (2)

Publication Number Publication Date
JPS60136910A true JPS60136910A (ja) 1985-07-20
JPH0572646B2 JPH0572646B2 (enrdf_load_stackoverflow) 1993-10-12

Family

ID=17110479

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24388883A Granted JPS60136910A (ja) 1983-12-26 1983-12-26 磁気ヘツドの断線異常検出回路

Country Status (1)

Country Link
JP (1) JPS60136910A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5392172A (en) * 1992-01-30 1995-02-21 Hitachi, Ltd. Magnetic head circuit having a write current changeover circuit with a clamp voltage depending on write current for high-speed data transfer
US5434717A (en) * 1993-03-19 1995-07-18 Hitachi, Ltd. Read and/or write integrated circuit having an operation timing adjusting circuit and constant current elements
WO2000079521A1 (en) * 1999-06-22 2000-12-28 Koninklijke Philips Electronics N.V. Write drive apparatus
US6952316B2 (en) 2002-11-08 2005-10-04 International Business Machines Corporation Open head detection circuit and method in a voltage or current mode driver

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172516A (en) * 1981-04-16 1982-10-23 Fujitsu Ltd Detection system for fault of magnetic head

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172516A (en) * 1981-04-16 1982-10-23 Fujitsu Ltd Detection system for fault of magnetic head

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5392172A (en) * 1992-01-30 1995-02-21 Hitachi, Ltd. Magnetic head circuit having a write current changeover circuit with a clamp voltage depending on write current for high-speed data transfer
US5434717A (en) * 1993-03-19 1995-07-18 Hitachi, Ltd. Read and/or write integrated circuit having an operation timing adjusting circuit and constant current elements
WO2000079521A1 (en) * 1999-06-22 2000-12-28 Koninklijke Philips Electronics N.V. Write drive apparatus
US6952316B2 (en) 2002-11-08 2005-10-04 International Business Machines Corporation Open head detection circuit and method in a voltage or current mode driver

Also Published As

Publication number Publication date
JPH0572646B2 (enrdf_load_stackoverflow) 1993-10-12

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