GB782327A - Improvements in or relating to magnetic tape recording reproducing heads - Google Patents

Improvements in or relating to magnetic tape recording reproducing heads

Info

Publication number
GB782327A
GB782327A GB29071/55A GB2907155A GB782327A GB 782327 A GB782327 A GB 782327A GB 29071/55 A GB29071/55 A GB 29071/55A GB 2907155 A GB2907155 A GB 2907155A GB 782327 A GB782327 A GB 782327A
Authority
GB
United Kingdom
Prior art keywords
plate
hall
core
excitation current
magnetic field
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
GB29071/55A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB782327A publication Critical patent/GB782327A/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
    • 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

Landscapes

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

Abstract

782,327. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 12, 1955 [Oct. 15, 1954], No. 29071/55. Class 37. [Also in Group XXXVIII] A magnetic tape recording reproducing head comprising a ferromagnetic, e.g. ferrite, core 1, 2, having a gap 3 along which a recorded tape 4 is passed includes at least one Hall-plate 5 so disposed that a magnetic field set up by the tape in the core extends transversely to the main faces of the plate whereby upon an electric excitation current being passed through the plate transversely to the direction of the magnetic field an electric field of strength determined by those of the excitation current and of the magnetic field is set up within the plate transversely to the plane through the respective directions of the excitation current and mag. netic field. A formula is given in the Specification by which a Hall-plate which is suitable for a reproducing head is selected. Ribs 6 may be provided for cooling the Hall-plate and core. The Hall-plate may be ground and of germanium, silicon or indium-antimonide, or alternatively applied by vacuum evaporation to one or both core parts 1, 2.
GB29071/55A 1954-10-15 1955-10-12 Improvements in or relating to magnetic tape recording reproducing heads Expired GB782327A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL782327X 1954-10-15

Publications (1)

Publication Number Publication Date
GB782327A true GB782327A (en) 1957-09-04

Family

ID=19832184

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29071/55A Expired GB782327A (en) 1954-10-15 1955-10-12 Improvements in or relating to magnetic tape recording reproducing heads

Country Status (1)

Country Link
GB (1) GB782327A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1124998B (en) * 1960-09-30 1962-03-08 Siemens Ag Signal generator with a Hall generator scanning head
DE1134528B (en) * 1958-05-23 1962-08-09 Siemens Ag Headphone with reverb generator
DE1138957B (en) * 1958-06-10 1962-10-31 Siemens Ag Magnetic head
DE1160007B (en) * 1959-12-18 1963-12-27 Siemens Ag Magnetic reading head with Hall generator
DE1190037B (en) * 1963-09-16 1965-04-01 Akad Wissenschaften Ddr System for a gapless magnetic head for writing and / or (only) reading of magnetically stored information
DE1201874B (en) * 1958-05-22 1965-09-30 Siemens Ag Playback head for magnetic recordings

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1201874B (en) * 1958-05-22 1965-09-30 Siemens Ag Playback head for magnetic recordings
DE1134528B (en) * 1958-05-23 1962-08-09 Siemens Ag Headphone with reverb generator
DE1138957B (en) * 1958-06-10 1962-10-31 Siemens Ag Magnetic head
DE1160007B (en) * 1959-12-18 1963-12-27 Siemens Ag Magnetic reading head with Hall generator
DE1124998B (en) * 1960-09-30 1962-03-08 Siemens Ag Signal generator with a Hall generator scanning head
DE1190037B (en) * 1963-09-16 1965-04-01 Akad Wissenschaften Ddr System for a gapless magnetic head for writing and / or (only) reading of magnetically stored information

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