BR7702515A - Dispositivo de registro e de leitura magnetica - Google Patents

Dispositivo de registro e de leitura magnetica

Info

Publication number
BR7702515A
BR7702515A BR7702515A BR7702515A BR7702515A BR 7702515 A BR7702515 A BR 7702515A BR 7702515 A BR7702515 A BR 7702515A BR 7702515 A BR7702515 A BR 7702515A BR 7702515 A BR7702515 A BR 7702515A
Authority
BR
Brazil
Prior art keywords
registration
reading device
magnetic reading
magnetic
reading
Prior art date
Application number
BR7702515A
Other languages
English (en)
Portuguese (pt)
Inventor
L Pailler
Original Assignee
Dassault Electronique
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 Dassault Electronique filed Critical Dassault Electronique
Publication of BR7702515A publication Critical patent/BR7702515A/pt

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
    • 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
    • G11B5/10—Structure or manufacture of housings or shields for heads
    • G11B5/11—Shielding of head against electric or magnetic fields
    • G11B5/115—Shielding devices arranged between heads or windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
BR7702515A 1976-07-08 1977-04-20 Dispositivo de registro e de leitura magnetica BR7702515A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7620945A FR2357972A1 (fr) 1976-07-08 1976-07-08 Dispositif d'enregistrement et de lecture magnetique

Publications (1)

Publication Number Publication Date
BR7702515A true BR7702515A (pt) 1978-02-28

Family

ID=9175434

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7702515A BR7702515A (pt) 1976-07-08 1977-04-20 Dispositivo de registro e de leitura magnetica

Country Status (2)

Country Link
BR (1) BR7702515A (enExample)
FR (1) FR2357972A1 (enExample)

Also Published As

Publication number Publication date
FR2357972A1 (fr) 1978-02-03
FR2357972B1 (enExample) 1981-04-30

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