GB909217A - Improved magnetic recording and reproducing apparatus and record member therefor - Google Patents

Improved magnetic recording and reproducing apparatus and record member therefor

Info

Publication number
GB909217A
GB909217A GB2190760A GB2190760A GB909217A GB 909217 A GB909217 A GB 909217A GB 2190760 A GB2190760 A GB 2190760A GB 2190760 A GB2190760 A GB 2190760A GB 909217 A GB909217 A GB 909217A
Authority
GB
United Kingdom
Prior art keywords
magnetic recording
reproducing apparatus
improved magnetic
record member
member therefor
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
GB2190760A
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.)
Ampex Corp
Original Assignee
Ampex Corp
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 Ampex Corp filed Critical Ampex Corp
Publication of GB909217A publication Critical patent/GB909217A/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
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/115—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam,e.g. of electrons or X-rays other than a beam of light for reproducing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
    • G06K1/125—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by magnetic means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

909,217. Magnetic records. AMPEX CORPORATION. June 22, 1960 [July 20, 1959], No. 21907/60. Drawings to Specification. Class 106 (1). A magnetic record consists of a perforated non-magnetic base material with magnetic material in the perforations. The thickness of the base is several times the diameter of the perforations so that the record consists of a plurality of rod-like elements of magnetic material.
GB2190760A 1959-07-20 1960-06-22 Improved magnetic recording and reproducing apparatus and record member therefor Expired GB909217A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82830359A 1959-07-20 1959-07-20

Publications (1)

Publication Number Publication Date
GB909217A true GB909217A (en) 1962-10-31

Family

ID=25251409

Family Applications (3)

Application Number Title Priority Date Filing Date
GB2190760A Expired GB909217A (en) 1959-07-20 1960-06-22 Improved magnetic recording and reproducing apparatus and record member therefor
GB1927562A Expired GB921658A (en) 1959-07-20 1960-06-22 Improved reproducing head
GB1927462A Expired GB951361A (en) 1959-07-20 1960-06-22 Improved recording head

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB1927562A Expired GB921658A (en) 1959-07-20 1960-06-22 Improved reproducing head
GB1927462A Expired GB951361A (en) 1959-07-20 1960-06-22 Improved recording head

Country Status (2)

Country Link
DE (1) DE1207444B (en)
GB (3) GB909217A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5044081Y1 (en) * 1974-10-17 1975-12-16

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247483A (en) * 1963-03-26 1966-04-19 Ibm Character recognition system employing a plurality of spaced serial transducers
US3651311A (en) * 1969-11-26 1972-03-21 Digitronics Corp Information signal generation apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE663728C (en) * 1933-09-20 1938-08-12 Veronika Oexmann Geb Daltrop Record-shaped magnetogram carrier
US2782043A (en) * 1950-08-22 1957-02-19 Rca Corp Magnetic tape

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5044081Y1 (en) * 1974-10-17 1975-12-16

Also Published As

Publication number Publication date
GB921658A (en) 1963-03-20
GB951361A (en) 1964-03-04
DE1207444B (en) 1965-12-23

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