FR2145567A1 - - Google Patents

Info

Publication number
FR2145567A1
FR2145567A1 FR7224926A FR7224926A FR2145567A1 FR 2145567 A1 FR2145567 A1 FR 2145567A1 FR 7224926 A FR7224926 A FR 7224926A FR 7224926 A FR7224926 A FR 7224926A FR 2145567 A1 FR2145567 A1 FR 2145567A1
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.)
Granted
Application number
FR7224926A
Other languages
French (fr)
Other versions
FR2145567B1 (sv
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
Philips Gloeilampenfabrieken 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 NL7109572A external-priority patent/NL7109572A/xx
Priority claimed from NL7204924A external-priority patent/NL7204924A/xx
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2145567A1 publication Critical patent/FR2145567A1/fr
Application granted granted Critical
Publication of FR2145567B1 publication Critical patent/FR2145567B1/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
    • 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
    • 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
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/37—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using galvano-magnetic devices, e.g. Hall-effect devices using Hall or Hall-related effect, e.g. planar-Hall effect or pseudo-Hall effect
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Magnetic Record Carriers (AREA)
  • Magnetic Heads (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
FR7224926A 1971-07-10 1972-07-10 Expired FR2145567B1 (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7109572A NL7109572A (sv) 1971-07-10 1971-07-10
NL7204924A NL7204924A (sv) 1972-04-13 1972-04-13

Publications (2)

Publication Number Publication Date
FR2145567A1 true FR2145567A1 (sv) 1973-02-23
FR2145567B1 FR2145567B1 (sv) 1978-11-03

Family

ID=26644673

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7224926A Expired FR2145567B1 (sv) 1971-07-10 1972-07-10

Country Status (8)

Country Link
JP (1) JPS5326488B1 (sv)
BE (1) BE786085A (sv)
CA (1) CA1003955A (sv)
DE (1) DE2231877C3 (sv)
FR (1) FR2145567B1 (sv)
GB (1) GB1385984A (sv)
IT (1) IT964614B (sv)
SE (1) SE385630B (sv)

Also Published As

Publication number Publication date
CA1003955A (en) 1977-01-18
DE2231877B2 (de) 1978-04-20
SE385630B (sv) 1976-07-12
DE2231877A1 (de) 1973-01-18
IT964614B (it) 1974-01-31
JPS5326488B1 (sv) 1978-08-02
DE2231877C3 (de) 1978-12-07
GB1385984A (en) 1975-03-05
BE786085A (fr) 1973-01-10
FR2145567B1 (sv) 1978-11-03

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Legal Events

Date Code Title Description
ST Notification of lapse