GB803624A - Improvements in or relating to magnetic recording or reproducing apparatus - Google Patents

Improvements in or relating to magnetic recording or reproducing apparatus

Info

Publication number
GB803624A
GB803624A GB1903756A GB1903756A GB803624A GB 803624 A GB803624 A GB 803624A GB 1903756 A GB1903756 A GB 1903756A GB 1903756 A GB1903756 A GB 1903756A GB 803624 A GB803624 A GB 803624A
Authority
GB
United Kingdom
Prior art keywords
head
heads
auxiliary
magnetic recording
june
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
GB1903756A
Inventor
Gilbert Faraday Dutton
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB1903756A priority Critical patent/GB803624A/en
Publication of GB803624A publication Critical patent/GB803624A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G11B5/17—Construction or disposition of windings
    • 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)
  • Magnetic Heads (AREA)

Abstract

803,624. Magnetic recording and reproducing heads. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 20, 1957 [June 20, 1956], No. 19037/56. Class 40 (2). In a multi-track recording or reproducing head assembly in which two or more closely spaced heads 1, 2 each have a core of magnetic material with at least one non-magnetic gap 4, 10 therein, main and auxiliary inductive windings are associated with each core, each main winding 6, 7 or 12, 13 being so coupled to the auxiliary winding 14, 8 of the or each adjacent head that cross-talk between the heads is reduced. In use the heads shown are stacked with their gaps 4, 10 lying in a common plane, and signals are fed to or derived from the head 1 by leads a1, a2, and to or from the head 2 by leads b1, b2. In a modification, the auxiliary windings 8, 14 are connected directly together and each serves to couple the other inductively with the main winding of the adjacent head.
GB1903756A 1956-06-20 1956-06-20 Improvements in or relating to magnetic recording or reproducing apparatus Expired GB803624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1903756A GB803624A (en) 1956-06-20 1956-06-20 Improvements in or relating to magnetic recording or reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1903756A GB803624A (en) 1956-06-20 1956-06-20 Improvements in or relating to magnetic recording or reproducing apparatus

Publications (1)

Publication Number Publication Date
GB803624A true GB803624A (en) 1958-10-29

Family

ID=10122701

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1903756A Expired GB803624A (en) 1956-06-20 1956-06-20 Improvements in or relating to magnetic recording or reproducing apparatus

Country Status (1)

Country Link
GB (1) GB803624A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3165592A (en) * 1959-04-23 1965-01-12 Bull Sa Machines Method of and means for neutralizing inductive disturbances in magnetic reproducers
US3591733A (en) * 1969-05-28 1971-07-06 Ibm Magnetic coupling compensation means for a multielement magnet head
JPS4834512U (en) * 1971-08-27 1973-04-25
JPS5165614A (en) * 1974-12-04 1976-06-07 Hitachi Ltd ROWATEIGENYOTA SOSHIGATAHAKUMAKUJIKI HETSUDO
US4008493A (en) * 1975-07-11 1977-02-15 Pizzuto John N Magnetic head structure with minimum feedthrough
US4827360A (en) * 1987-07-20 1989-05-02 Victor Company Of Japan, Ltd. Rotary transformer with winding to cancel crosstalk

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3165592A (en) * 1959-04-23 1965-01-12 Bull Sa Machines Method of and means for neutralizing inductive disturbances in magnetic reproducers
US3591733A (en) * 1969-05-28 1971-07-06 Ibm Magnetic coupling compensation means for a multielement magnet head
JPS4834512U (en) * 1971-08-27 1973-04-25
JPS5165614A (en) * 1974-12-04 1976-06-07 Hitachi Ltd ROWATEIGENYOTA SOSHIGATAHAKUMAKUJIKI HETSUDO
JPS5419287B2 (en) * 1974-12-04 1979-07-13
US4008493A (en) * 1975-07-11 1977-02-15 Pizzuto John N Magnetic head structure with minimum feedthrough
US4827360A (en) * 1987-07-20 1989-05-02 Victor Company Of Japan, Ltd. Rotary transformer with winding to cancel crosstalk

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