GB1402681A - Tunnel erase transducer assembly - Google Patents

Tunnel erase transducer assembly

Info

Publication number
GB1402681A
GB1402681A GB2581373A GB2581373A GB1402681A GB 1402681 A GB1402681 A GB 1402681A GB 2581373 A GB2581373 A GB 2581373A GB 2581373 A GB2581373 A GB 2581373A GB 1402681 A GB1402681 A GB 1402681A
Authority
GB
United Kingdom
Prior art keywords
strip
erase
core
bifurcations
bent
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.)
Expired
Application number
GB2581373A
Other languages
English (en)
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1402681A publication Critical patent/GB1402681A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/488—Disposition of heads
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
GB2581373A 1972-06-28 1973-05-30 Tunnel erase transducer assembly Expired GB1402681A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26694772A 1972-06-28 1972-06-28

Publications (1)

Publication Number Publication Date
GB1402681A true GB1402681A (en) 1975-08-13

Family

ID=23016637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2581373A Expired GB1402681A (en) 1972-06-28 1973-05-30 Tunnel erase transducer assembly

Country Status (7)

Country Link
US (1) US3769469A (enrdf_load_stackoverflow)
JP (1) JPS5220255B2 (enrdf_load_stackoverflow)
CA (1) CA998470A (enrdf_load_stackoverflow)
DE (1) DE2329693A1 (enrdf_load_stackoverflow)
FR (1) FR2191188B1 (enrdf_load_stackoverflow)
GB (1) GB1402681A (enrdf_load_stackoverflow)
IT (1) IT982621B (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5788509A (en) * 1980-11-20 1982-06-02 Ibm Protective device for data of magnetic recording device
US4819092A (en) * 1987-05-08 1989-04-04 Colorado Memory Systems, Inc. Apparatus for writing signal density information on a magnetic medium
AU6626294A (en) * 1993-04-09 1994-11-08 Washington University Magnetic recording head with continuously monitored track following servo
US6564307B1 (en) 1999-08-18 2003-05-13 International Business Machines Corporation Method, system, and program for logically erasing data

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB832036A (en) * 1958-01-15 1960-04-06 Gerhard Dirks Improvements in or relating to magnetic recording and reading apparatus
US3155949A (en) * 1961-11-24 1964-11-03 Ibm Tunnel erase magnetic transducer
US3504134A (en) * 1966-07-13 1970-03-31 Ncr Co Multiple magnetic head with a strip core having a common base portion
NL156528B (nl) * 1966-09-15 1978-04-17 Philips Nv Magnetische schrijf-lees-wiskop.
US3684841A (en) * 1969-12-30 1972-08-15 Honeywell Inc Multi-channel magnetic transducer structure having full width erase head in non-magnetic housing
US3668332A (en) * 1970-08-26 1972-06-06 Xerox Corp Magnetic recording heat which accurately defines the width of the recording track

Also Published As

Publication number Publication date
FR2191188B1 (enrdf_load_stackoverflow) 1976-09-17
DE2329693A1 (de) 1974-01-17
JPS4958816A (enrdf_load_stackoverflow) 1974-06-07
IT982621B (it) 1974-10-21
JPS5220255B2 (enrdf_load_stackoverflow) 1977-06-02
CA998470A (en) 1976-10-12
FR2191188A1 (enrdf_load_stackoverflow) 1974-02-01
US3769469A (en) 1973-10-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee