JPS56140521A - Transversal type magnetic head - Google Patents

Transversal type magnetic head

Info

Publication number
JPS56140521A
JPS56140521A JP4418780A JP4418780A JPS56140521A JP S56140521 A JPS56140521 A JP S56140521A JP 4418780 A JP4418780 A JP 4418780A JP 4418780 A JP4418780 A JP 4418780A JP S56140521 A JPS56140521 A JP S56140521A
Authority
JP
Japan
Prior art keywords
medium
resistances
read
bits
resistance
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.)
Granted
Application number
JP4418780A
Other languages
Japanese (ja)
Other versions
JPS639284B2 (en
Inventor
Masao Hiyane
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP4418780A priority Critical patent/JPS56140521A/en
Publication of JPS56140521A publication Critical patent/JPS56140521A/en
Publication of JPS639284B2 publication Critical patent/JPS639284B2/ja
Granted 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
    • G11B5/127—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
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
    • G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
    • G11B5/3945—Heads comprising more than one sensitive element
    • G11B5/3948—Heads comprising more than one sensitive element the sensitive elements being active read-out elements
    • G11B5/3951—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged on several parallel planes
    • G11B5/3954—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged on several parallel planes the active elements transducing on a single track
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0007—Circuits or methods for reducing noise, for correction of distortion, or for changing density of recorded information
    • 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
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
    • G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
    • G11B5/397—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read with a plurality of independent magnetoresistive active read-out elements for respectively transducing from selected components
    • G11B5/3974—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read with a plurality of independent magnetoresistive active read-out elements for respectively transducing from selected components from the same information track, e.g. frequency bands

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)

Abstract

PURPOSE:To eliminate an interference signal by effectively utilizing the magnetic flux that medium bits generate, by obtaining a read signal by summing up read signals, obtained by respective thin-film magnetic resistances at respective stages at right angles to a medium running direction after multiplying them by respective coefficients. CONSTITUTION:For example, when medium 4 is moved as shown by the arrow with regard to the relative motion between thin-film magnetic resistances 9-13, and medium 4, resistance values R of resistances 9-13 vary according to the bits of medium 4. Assuming that resistance 11 faces to a medium bit to be read, the medium bit is detected by resistance 11 and also detected by resistances 10 and 12, and 9 and 13 in front of and behind it. In this case, a target signal component is obtained in proportion to space (a). For this purpose, read signals from them are multiplied by proper coefficients respectively and the products are inputted to operational amplifier 14 for addition and subtraction, thereby outputting only the target signal component. Thus, interference signals from two continuous bits are eliminated.
JP4418780A 1980-04-04 1980-04-04 Transversal type magnetic head Granted JPS56140521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4418780A JPS56140521A (en) 1980-04-04 1980-04-04 Transversal type magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4418780A JPS56140521A (en) 1980-04-04 1980-04-04 Transversal type magnetic head

Publications (2)

Publication Number Publication Date
JPS56140521A true JPS56140521A (en) 1981-11-02
JPS639284B2 JPS639284B2 (en) 1988-02-26

Family

ID=12684561

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4418780A Granted JPS56140521A (en) 1980-04-04 1980-04-04 Transversal type magnetic head

Country Status (1)

Country Link
JP (1) JPS56140521A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5258515A (en) * 1975-11-08 1977-05-14 Nec Corp Magnetic resistance effect head
JPS52136610A (en) * 1976-05-12 1977-11-15 Toshiba Corp Magnetic resistance effect head
JPS5482602U (en) * 1977-11-24 1979-06-12

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5258515A (en) * 1975-11-08 1977-05-14 Nec Corp Magnetic resistance effect head
JPS52136610A (en) * 1976-05-12 1977-11-15 Toshiba Corp Magnetic resistance effect head
JPS5482602U (en) * 1977-11-24 1979-06-12

Also Published As

Publication number Publication date
JPS639284B2 (en) 1988-02-26

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