GB963219A - Improvements in and relating to sound recording and reproducing apparatus - Google Patents

Improvements in and relating to sound recording and reproducing apparatus

Info

Publication number
GB963219A
GB963219A GB883561A GB883561A GB963219A GB 963219 A GB963219 A GB 963219A GB 883561 A GB883561 A GB 883561A GB 883561 A GB883561 A GB 883561A GB 963219 A GB963219 A GB 963219A
Authority
GB
United Kingdom
Prior art keywords
relating
reproducing apparatus
sound recording
gap
march
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
GB883561A
Inventor
Ronald George Mammatt
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.)
Cosmocord Ltd
Original Assignee
Cosmocord 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 Cosmocord Ltd filed Critical Cosmocord Ltd
Priority to GB883561A priority Critical patent/GB963219A/en
Publication of GB963219A publication Critical patent/GB963219A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Magnetic Heads (AREA)

Abstract

963,219. Magnetic recording &c. heads. COSMOCORD Ltd. March 12, 1962 [March 10, 1961], No. 8835/61. Heading G5R. To avoid cut-off on playback, of recorded sound signals, whose wavelength is related to the head gap-length, a head has a transducing gap limited by edges not parallel to one another. Alternative gap-forms are described.
GB883561A 1961-03-10 1961-03-10 Improvements in and relating to sound recording and reproducing apparatus Expired GB963219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB883561A GB963219A (en) 1961-03-10 1961-03-10 Improvements in and relating to sound recording and reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB883561A GB963219A (en) 1961-03-10 1961-03-10 Improvements in and relating to sound recording and reproducing apparatus

Publications (1)

Publication Number Publication Date
GB963219A true GB963219A (en) 1964-07-08

Family

ID=9860132

Family Applications (1)

Application Number Title Priority Date Filing Date
GB883561A Expired GB963219A (en) 1961-03-10 1961-03-10 Improvements in and relating to sound recording and reproducing apparatus

Country Status (1)

Country Link
GB (1) GB963219A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3582918A (en) * 1968-01-12 1971-06-01 Gen Electric Magnetic head with dissimilar pole pieces
US4803582A (en) * 1983-06-23 1989-02-07 Victor Company Of Japan Ltd. Perpendicular magnetization type magnetic head having a magnetic pole part which forms a closed magnetic path

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3582918A (en) * 1968-01-12 1971-06-01 Gen Electric Magnetic head with dissimilar pole pieces
US4803582A (en) * 1983-06-23 1989-02-07 Victor Company Of Japan Ltd. Perpendicular magnetization type magnetic head having a magnetic pole part which forms a closed magnetic path

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