FR1107894A - Appareil d'enregistrement magnétique - Google Patents

Appareil d'enregistrement magnétique

Info

Publication number
FR1107894A
FR1107894A FR1107894DA FR1107894A FR 1107894 A FR1107894 A FR 1107894A FR 1107894D A FR1107894D A FR 1107894DA FR 1107894 A FR1107894 A FR 1107894A
Authority
FR
France
Prior art keywords
magnetic recording
recording device
magnetic
recording
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
Other languages
English (en)
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.)
Underwood Corp
Original Assignee
Underwood 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 Underwood Corp filed Critical Underwood Corp
Application granted granted Critical
Publication of FR1107894A publication Critical patent/FR1107894A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1488—Digital recording or reproducing using self-clocking codes characterised by the use of three levels
    • G11B20/1492—Digital recording or reproducing using self-clocking codes characterised by the use of three levels two levels are symmetric, in respect of the sign to the third level which is "zero"

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Digital Magnetic Recording (AREA)
FR1107894D 1953-05-26 1954-05-25 Appareil d'enregistrement magnétique Expired FR1107894A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US357502A US2764463A (en) 1953-05-26 1953-05-26 Magnetic recording system

Publications (1)

Publication Number Publication Date
FR1107894A true FR1107894A (fr) 1956-01-05

Family

ID=23405888

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1107894D Expired FR1107894A (fr) 1953-05-26 1954-05-25 Appareil d'enregistrement magnétique

Country Status (3)

Country Link
US (1) US2764463A (fr)
FR (1) FR1107894A (fr)
GB (1) GB759089A (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB785879A (en) * 1954-02-25 1957-11-06 Standard Telephones Cables Ltd Improvements in or relating to apparatus for the storage of intelligence signals
US2922144A (en) * 1954-03-01 1960-01-19 Smith Corona Marchant Inc Read-record circuits
US2864077A (en) * 1954-03-10 1958-12-09 Turk John E De Means for distinguishing positive and negative pulses in magnetic tape recording
US2896192A (en) * 1954-08-09 1959-07-21 Lab For Electronics Inc Data processing apparatus
US2917726A (en) * 1955-03-25 1959-12-15 Underwood Corp Magnetic recording system
US2972735A (en) * 1955-05-04 1961-02-21 Lab For Electronics Inc Data processing
US2941189A (en) * 1955-07-19 1960-06-14 Automatic Elect Lab Magnetic memory apparatus
US2937371A (en) * 1955-07-26 1960-05-17 Curtiss Wright Corp Information transfer system
NL211269A (fr) * 1955-10-17
US2954441A (en) * 1955-12-13 1960-09-27 Ampex Wide band magnetic system
US2903677A (en) * 1956-01-13 1959-09-08 Hughes Aircraft Co Timing track recording apparatus
US3008124A (en) * 1956-02-23 1961-11-07 Philco Corp System for transmission and reception of binary digital information
US3024445A (en) * 1956-10-18 1962-03-06 Rca Corp Information transferring system
US3064242A (en) * 1957-04-11 1962-11-13 Sperry Rand Corp Magnetic record sensing apparatus
US2942184A (en) * 1957-07-15 1960-06-21 Gen Motors Corp Vehicle accelerometer
US3108265A (en) * 1957-08-14 1963-10-22 Time Inc Magnetic data recording system
US3108260A (en) * 1957-12-05 1963-10-22 Bell Telephone Labor Inc Magnetic recording and reproducing system
US2952008A (en) * 1957-12-26 1960-09-06 Ibm Record actuated timing and checking means
US3038148A (en) * 1958-04-25 1962-06-05 Ibm Apparatus for increasing the storage capacity of a magnetic drum
US2954267A (en) * 1958-06-05 1960-09-27 Olivetti Corp Of America Modified return-to-zero digital recording system
US2994853A (en) * 1958-07-07 1961-08-01 Ibm Information record reading system
US3085246A (en) * 1958-11-26 1963-04-09 Ibm Magnetic recording method
US3067422A (en) * 1958-12-24 1962-12-04 Ibm Phase distortion correction for high density magnetic recording
US3031646A (en) * 1959-01-26 1962-04-24 Gen Precision Inc Checking circuit for digital computers
US3159840A (en) * 1960-11-14 1964-12-01 Honeywell Inc Pattern sensitivity compensation in high pulse density recording
NL262775A (fr) * 1961-03-24
NO300692B1 (no) 1994-04-29 1997-07-07 Biotec Mackzymal As Solubilisert forgrenet ß-1,3-glukan og anvendelse derav samt anvendelse av usolubilisert forgrenet ß-1,3-glukan

Also Published As

Publication number Publication date
GB759089A (en) 1956-10-10
US2764463A (en) 1956-09-25

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