DE2440553A1 - Einrichtung zum schreiben und/oder lesen magnetisierbarer kennkarten - Google Patents

Einrichtung zum schreiben und/oder lesen magnetisierbarer kennkarten

Info

Publication number
DE2440553A1
DE2440553A1 DE19742440553 DE2440553A DE2440553A1 DE 2440553 A1 DE2440553 A1 DE 2440553A1 DE 19742440553 DE19742440553 DE 19742440553 DE 2440553 A DE2440553 A DE 2440553A DE 2440553 A1 DE2440553 A1 DE 2440553A1
Authority
DE
Germany
Prior art keywords
reading
magnetic head
writing
conductor
magnetic
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.)
Pending
Application number
DE19742440553
Other languages
German (de)
English (en)
Inventor
Heinz Lienhard
Gernot Ing Grad Schneider
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.)
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
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 Landis and Gyr AG filed Critical Landis and Gyr AG
Publication of DE2440553A1 publication Critical patent/DE2440553A1/de
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • 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
    • G06K7/082—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 using inductive or magnetic sensors
    • G06K7/087—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 using inductive or magnetic sensors flux-sensitive, e.g. magnetic, detectors
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/49—Fixed mounting or arrangements, e.g. one head per track
    • G11B5/4907—Details for scanning
    • G11B5/4915—Structure of specially adapted heads
    • G11B5/4923—Structure of specially adapted heads in which zones of the transducing part are being physically controllable
    • G11B5/493—Control of magnetic properties, e.g. saturation, anisotropy
    • G11B5/4938—Control of magnetic properties, e.g. saturation, anisotropy of thin magnetic films
    • G11B5/4946—Control of magnetic properties, e.g. saturation, anisotropy of thin magnetic films for formation or displacement of magnetic domains, e.g. walls, bubbles

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Credit Cards Or The Like (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Magnetic Record Carriers (AREA)
DE19742440553 1974-07-19 1974-08-21 Einrichtung zum schreiben und/oder lesen magnetisierbarer kennkarten Pending DE2440553A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH996774A CH574139A5 (enrdf_load_stackoverflow) 1974-07-19 1974-07-19

Publications (1)

Publication Number Publication Date
DE2440553A1 true DE2440553A1 (de) 1976-01-29

Family

ID=4357652

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742440553 Pending DE2440553A1 (de) 1974-07-19 1974-08-21 Einrichtung zum schreiben und/oder lesen magnetisierbarer kennkarten

Country Status (3)

Country Link
CH (1) CH574139A5 (enrdf_load_stackoverflow)
DE (1) DE2440553A1 (enrdf_load_stackoverflow)
IT (1) IT1039909B (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
CH574139A5 (enrdf_load_stackoverflow) 1976-03-31
IT1039909B (it) 1979-12-10

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