FR2158196B1 - - Google Patents

Info

Publication number
FR2158196B1
FR2158196B1 FR7234258A FR7234258A FR2158196B1 FR 2158196 B1 FR2158196 B1 FR 2158196B1 FR 7234258 A FR7234258 A FR 7234258A FR 7234258 A FR7234258 A FR 7234258A FR 2158196 B1 FR2158196 B1 FR 2158196B1
Authority
FR
France
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
FR7234258A
Other languages
French (fr)
Other versions
FR2158196A1 (enrdf_load_stackoverflow
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 FR2158196A1 publication Critical patent/FR2158196A1/fr
Application granted granted Critical
Publication of FR2158196B1 publication Critical patent/FR2158196B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
    • 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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track
    • G11B5/2452—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track where the dimensions of the effective gap are controlled
    • 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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • 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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3103—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing
    • 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
    • G11B5/49—Fixed mounting or arrangements, e.g. one head per track
    • G11B5/4969—Details for track selection or addressing

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
FR7234258A 1971-11-03 1972-09-20 Expired FR2158196B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5102971A GB1357400A (en) 1971-11-03 1971-11-03 Magnetic recording and reproducing apparatus

Publications (2)

Publication Number Publication Date
FR2158196A1 FR2158196A1 (enrdf_load_stackoverflow) 1973-06-15
FR2158196B1 true FR2158196B1 (enrdf_load_stackoverflow) 1976-01-30

Family

ID=10458359

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7234258A Expired FR2158196B1 (enrdf_load_stackoverflow) 1971-11-03 1972-09-20

Country Status (4)

Country Link
JP (1) JPS5529489B2 (enrdf_load_stackoverflow)
DE (1) DE2242095A1 (enrdf_load_stackoverflow)
FR (1) FR2158196B1 (enrdf_load_stackoverflow)
GB (1) GB1357400A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5165613A (ja) * 1974-12-04 1976-06-07 Hitachi Ltd Tasoshigatahakumakuhetsudo
FR2480014A1 (fr) 1980-04-02 1981-10-09 Cii Honeywell Bull Transducteur magnetique de lecture et/ou d'enregistrement d'informations contenues sur un support magnetique
FR2480015A1 (fr) 1980-04-02 1981-10-09 Cii Honeywell Bull Transducteur magnetique a entrefer de grande dimension variable pour la lecture et l'ecriture des informations contenues dans un support magnetique
DE3204183A1 (de) * 1982-02-06 1983-08-11 Robert Bosch Gmbh, 7000 Stuttgart Duennschicht-magnetkopf
GB0722956D0 (en) * 2007-11-22 2008-01-02 Barnes Charles F J Magnetic write head

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2954547A (en) * 1956-02-16 1960-09-27 Ibm Selector for a multiple track record of a magnetic memory system
FR1520060A (fr) * 1967-04-20 1968-04-05 Sperry Rand Corp Tête magnétique en fil plaqué

Also Published As

Publication number Publication date
FR2158196A1 (enrdf_load_stackoverflow) 1973-06-15
DE2242095A1 (de) 1973-05-10
JPS5529489B2 (enrdf_load_stackoverflow) 1980-08-04
JPS4858816A (enrdf_load_stackoverflow) 1973-08-17
GB1357400A (en) 1974-06-19

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Legal Events

Date Code Title Description
ST Notification of lapse