JPS588050B2 - 磁界パタ−ン検出装置 - Google Patents

磁界パタ−ン検出装置

Info

Publication number
JPS588050B2
JPS588050B2 JP50022490A JP2249075A JPS588050B2 JP S588050 B2 JPS588050 B2 JP S588050B2 JP 50022490 A JP50022490 A JP 50022490A JP 2249075 A JP2249075 A JP 2249075A JP S588050 B2 JPS588050 B2 JP S588050B2
Authority
JP
Japan
Prior art keywords
magnetic
bubble
magnetic field
field pattern
plate
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
JP50022490A
Other languages
English (en)
Japanese (ja)
Other versions
JPS50120812A (enrdf_load_stackoverflow
Inventor
フレデリツク・アテ・デ・ヨンゲ
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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
Priority claimed from NL7402690A external-priority patent/NL7402690A/xx
Priority claimed from NL7402694A external-priority patent/NL7402694A/xx
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of JPS50120812A publication Critical patent/JPS50120812A/ja
Publication of JPS588050B2 publication Critical patent/JPS588050B2/ja
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/06—Diagnosis, testing or measuring for television systems or their details for recorders
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • 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
    • 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
    • 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
    • G11B5/4907—Details for scanning
    • G11B5/4915—Structure of specially adapted heads
    • G11B5/4923—Structure of specially adapted heads in which zones of the transducing part are being physically controllable
    • G11B5/493—Control of magnetic properties, e.g. saturation, anisotropy
    • G11B5/4938—Control of magnetic properties, e.g. saturation, anisotropy of thin magnetic films
    • G11B5/4946—Control of magnetic properties, e.g. saturation, anisotropy of thin magnetic films for formation or displacement of magnetic domains, e.g. walls, bubbles
    • 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
    • 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
    • G11B5/58—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 with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Magnetic Heads (AREA)
  • Magnetic Record Carriers (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
JP50022490A 1974-02-28 1975-02-25 磁界パタ−ン検出装置 Expired JPS588050B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7402690A NL7402690A (en) 1974-02-28 1974-02-28 Storage and reproduction of data - using disc and platelet of magnetisable material with bubble generated in platelet
NL7402694A NL7402694A (nl) 1974-02-28 1974-02-28 Inrichting voor het opslaan en weergeven van informatie.

Publications (2)

Publication Number Publication Date
JPS50120812A JPS50120812A (enrdf_load_stackoverflow) 1975-09-22
JPS588050B2 true JPS588050B2 (ja) 1983-02-14

Family

ID=26644969

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50022490A Expired JPS588050B2 (ja) 1974-02-28 1975-02-25 磁界パタ−ン検出装置

Country Status (5)

Country Link
JP (1) JPS588050B2 (enrdf_load_stackoverflow)
CA (1) CA1063239A (enrdf_load_stackoverflow)
DE (1) DE2506426A1 (enrdf_load_stackoverflow)
FR (1) FR2262850B1 (enrdf_load_stackoverflow)
GB (1) GB1491963A (enrdf_load_stackoverflow)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2362844A1 (de) * 1973-01-10 1974-07-11 Philips Nv Vorrichtung zur magnetischen aufzeichnung mit einer magnetischen streifendomaene als eingabe/ausgabekopf

Also Published As

Publication number Publication date
GB1491963A (en) 1977-11-16
FR2262850B1 (enrdf_load_stackoverflow) 1980-03-28
CA1063239A (en) 1979-09-25
DE2506426A1 (de) 1975-09-04
JPS50120812A (enrdf_load_stackoverflow) 1975-09-22
FR2262850A1 (enrdf_load_stackoverflow) 1975-09-26

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