DE2124934C3 - Schreibkopf zum Aufzeichnen von binären Digits auf einem sich bewegenden Magnetband in großer Dichte - Google Patents

Schreibkopf zum Aufzeichnen von binären Digits auf einem sich bewegenden Magnetband in großer Dichte

Info

Publication number
DE2124934C3
DE2124934C3 DE2124934A DE2124934A DE2124934C3 DE 2124934 C3 DE2124934 C3 DE 2124934C3 DE 2124934 A DE2124934 A DE 2124934A DE 2124934 A DE2124934 A DE 2124934A DE 2124934 C3 DE2124934 C3 DE 2124934C3
Authority
DE
Germany
Prior art keywords
magnetization
field
recording
films
gap
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
DE2124934A
Other languages
German (de)
English (en)
Other versions
DE2124934B2 (de
DE2124934A1 (de
Inventor
Paul Emmanuel Oberg
Maynard Carlton Paul
Gerald Francis Sauter
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.)
Unisys Corp
Original Assignee
Sperry Rand 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 Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of DE2124934A1 publication Critical patent/DE2124934A1/de
Publication of DE2124934B2 publication Critical patent/DE2124934B2/de
Application granted granted Critical
Publication of DE2124934C3 publication Critical patent/DE2124934C3/de
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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/09—Digital recording
    • 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
    • G11B5/3176—Structure of heads comprising at least in the transducing gap regions two magnetic thin films disposed respectively at both sides of the gaps
    • G11B5/3179—Structure of heads comprising at least in the transducing gap regions two magnetic thin films disposed respectively at both sides of the gaps the films being mainly disposed in parallel planes
    • G11B5/3183—Structure of heads comprising at least in the transducing gap regions two magnetic thin films disposed respectively at both sides of the gaps the films being mainly disposed in parallel planes intersecting the gap plane, e.g. "horizontal head structure"
    • 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
    • G11B2005/0002—Special dispositions or recording techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Digital Magnetic Recording (AREA)
  • Magnetic Heads (AREA)
DE2124934A 1970-05-21 1971-05-19 Schreibkopf zum Aufzeichnen von binären Digits auf einem sich bewegenden Magnetband in großer Dichte Expired DE2124934C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3919470A 1970-05-21 1970-05-21

Publications (3)

Publication Number Publication Date
DE2124934A1 DE2124934A1 (de) 1972-02-03
DE2124934B2 DE2124934B2 (de) 1978-12-21
DE2124934C3 true DE2124934C3 (de) 1979-09-27

Family

ID=21904170

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2124934A Expired DE2124934C3 (de) 1970-05-21 1971-05-19 Schreibkopf zum Aufzeichnen von binären Digits auf einem sich bewegenden Magnetband in großer Dichte

Country Status (5)

Country Link
US (1) US3683407A (enExample)
JP (1) JPS5217726B1 (enExample)
DE (1) DE2124934C3 (enExample)
FR (1) FR2100675B1 (enExample)
GB (1) GB1351705A (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5838843B2 (ja) * 1973-11-20 1983-08-25 ティーディーケイ株式会社 磁気記録再生方式
US4751598A (en) * 1985-02-01 1988-06-14 Censtor Corporation Thin-film, cross-field, closed-flux, anisotropic electromagnetic field device
US4931886A (en) * 1988-06-29 1990-06-05 Digital Equipment Corporation Apparatus and methods to suppress perpendicular fields in longitudinal recording
US5321570A (en) * 1989-10-02 1994-06-14 Behr Michael I Systems using superimposed, orthogonal buried servo signals
US5223994A (en) * 1989-10-02 1993-06-29 Behr Michael I System using superimposed, orthogonal buried servo signals
FR2712419B1 (fr) * 1993-11-09 1995-12-22 Thomson Csf Tête magnétique d'enregistrement/lecture.
US6816339B1 (en) * 2000-01-10 2004-11-09 Seagate Technology Llc Perpendicular magnetic recording head with longitudinal magnetic field generator to facilitate magnetization switching
US6717770B1 (en) 2000-03-24 2004-04-06 Seagate Technology Llc Recording head for applying a magnetic field perpendicular to the magnetizations within magnetic storage media

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3564588A (en) * 1964-07-07 1971-02-16 Us Navy Chemiluminescent system for detecting living microorganisms

Also Published As

Publication number Publication date
FR2100675B1 (enExample) 1973-06-08
DE2124934B2 (de) 1978-12-21
GB1351705A (en) 1974-05-01
DE2124934A1 (de) 1972-02-03
FR2100675A1 (enExample) 1972-03-24
US3683407A (en) 1972-08-08
JPS5217726B1 (enExample) 1977-05-17

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
EGA New person/name/address of the applicant
8340 Patent of addition ceased/non-payment of fee of main patent