GB1098889A - Improvements relating to information storage and reading systems - Google Patents

Improvements relating to information storage and reading systems

Info

Publication number
GB1098889A
GB1098889A GB3977465A GB3977465A GB1098889A GB 1098889 A GB1098889 A GB 1098889A GB 3977465 A GB3977465 A GB 3977465A GB 3977465 A GB3977465 A GB 3977465A GB 1098889 A GB1098889 A GB 1098889A
Authority
GB
United Kingdom
Prior art keywords
card
magnetic material
magnetic
switches
magnetic fields
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
GB3977465A
Inventor
Francis Michael Craven
Michael Donov Pennington-Ridge
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.)
Ferranti International PLC
Original Assignee
Ferranti PLC
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 Ferranti PLC filed Critical Ferranti PLC
Priority to GB3977465A priority Critical patent/GB1098889A/en
Priority to CH1329165A priority patent/CH466317A/en
Priority to DE1966F0030777 priority patent/DE1971268U/en
Publication of GB1098889A publication Critical patent/GB1098889A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06K7/088—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 using magneto-sensitive switches, e.g. reed-switches
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C233/00—Carboxylic acid amides
    • C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C233/16—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C311/00—Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
    • C07C311/15—Sulfonamides having sulfur atoms of sulfonamide groups bound to carbon atoms of six-membered aromatic rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Lock And Its Accessories (AREA)

Abstract

1,098,889. Sensing cards. FERRANTI Ltd. Sept. 12, 1966 [Sept. 17, 1965], No. 39774/65. Heading G4M. A coded card which carries areas of magnetic material is read by an array of reed switches, the switches are normally held in one state by associated local magnetic fields e.g. from permanent magnets, and the insertion of the card modifies the configuration of selected magnetic fields so that the states of the corresponding switches are altered. The card may be formed from discrete areas of magnetic material forming magnetic shunts or flux concentrators and enclosed between sheets of non-magnetic material. Alternatively the card may contain a sheet of magnetic material which is perforated at selected positions. A microswitch may be actuated when the card is correctly inserted, and this switch may be used to energize electromagnets producing the local magnetic fields.
GB3977465A 1964-09-30 1965-09-17 Improvements relating to information storage and reading systems Expired GB1098889A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB3977465A GB1098889A (en) 1965-09-17 1965-09-17 Improvements relating to information storage and reading systems
CH1329165A CH466317A (en) 1964-09-30 1965-09-27 Process for the preparation of alkanolamine derivatives
DE1966F0030777 DE1971268U (en) 1965-09-17 1966-09-15 INFORMATION STORAGE AND READING DEVICE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3977465A GB1098889A (en) 1965-09-17 1965-09-17 Improvements relating to information storage and reading systems

Publications (1)

Publication Number Publication Date
GB1098889A true GB1098889A (en) 1968-01-10

Family

ID=10411418

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3977465A Expired GB1098889A (en) 1964-09-30 1965-09-17 Improvements relating to information storage and reading systems

Country Status (2)

Country Link
DE (1) DE1971268U (en)
GB (1) GB1098889A (en)

Also Published As

Publication number Publication date
DE1971268U (en) 1967-10-26

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