JPS5458425A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS5458425A
JPS5458425A JP12545277A JP12545277A JPS5458425A JP S5458425 A JPS5458425 A JP S5458425A JP 12545277 A JP12545277 A JP 12545277A JP 12545277 A JP12545277 A JP 12545277A JP S5458425 A JPS5458425 A JP S5458425A
Authority
JP
Japan
Prior art keywords
gap length
signals
tracks
magnetic head
signals used
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.)
Pending
Application number
JP12545277A
Other languages
Japanese (ja)
Inventor
Makoto Watanabe
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12545277A priority Critical patent/JPS5458425A/en
Publication of JPS5458425A publication Critical patent/JPS5458425A/en
Pending 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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track

Landscapes

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

Abstract

PURPOSE:To reduce crosstalk between tracks with narrow tracks by making the gap length of side gaps integer times longer than the longest wavelength of the signals used, with a magnetic head for magnetic reproduction. CONSTITUTION:Magnetic material blocks 1, 2 are butten together and bonded by a bonding agent 7 such as glass or the like to form a gap part, whereby the ring form magnetic head is formed. The gap length 3 for write/read is about 1/3 the minimum magnetization inversion spacing out of the signals used in ordinary digital recording. Side gaps of a gap length 4 are formed on both side face parts of a track width 5 for recording and reproducting. The side face gap length is given the effective gap length integer times the longest wavelength of the signals used. Thereby, the signals being recorded by being leaked to the track side faces are reduced at the writing and high track density recording with less effect by the crosstalk signals from the adjoining tracks is made possible at the reading.
JP12545277A 1977-10-18 1977-10-18 Magnetic head Pending JPS5458425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12545277A JPS5458425A (en) 1977-10-18 1977-10-18 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12545277A JPS5458425A (en) 1977-10-18 1977-10-18 Magnetic head

Publications (1)

Publication Number Publication Date
JPS5458425A true JPS5458425A (en) 1979-05-11

Family

ID=14910431

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12545277A Pending JPS5458425A (en) 1977-10-18 1977-10-18 Magnetic head

Country Status (1)

Country Link
JP (1) JPS5458425A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01317214A (en) * 1988-06-17 1989-12-21 Matsushita Electric Ind Co Ltd Magnetic head
JPH0223506A (en) * 1988-07-12 1990-01-25 Nec Corp Magnetic head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01317214A (en) * 1988-06-17 1989-12-21 Matsushita Electric Ind Co Ltd Magnetic head
JPH0223506A (en) * 1988-07-12 1990-01-25 Nec Corp Magnetic head

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