GB1397240A - Data handling systems - Google Patents

Data handling systems

Info

Publication number
GB1397240A
GB1397240A GB5030171A GB5030171A GB1397240A GB 1397240 A GB1397240 A GB 1397240A GB 5030171 A GB5030171 A GB 5030171A GB 5030171 A GB5030171 A GB 5030171A GB 1397240 A GB1397240 A GB 1397240A
Authority
GB
United Kingdom
Prior art keywords
data
circuitry
oct
store
data handling
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
GB5030171A
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.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB5030171A priority Critical patent/GB1397240A/en
Priority to DE19722252897 priority patent/DE2252897A1/en
Priority to FR7238147A priority patent/FR2159019A5/fr
Publication of GB1397240A publication Critical patent/GB1397240A/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
    • G06K7/089—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 hand-held scanners

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Measuring Leads Or Probes (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

1397240 Card reader PLESSEY CO Ltd 2 Oct 1972 [28 Oct 1971] 50301/71 Heading G4M A probe for reading magnetically encoded data on a magnetic track has a tubular body 1 having a magnetic read head 2 at one end and containing a " start acceptance" logic circuit 3, a store 4, " data complete "logic circuitry 5, transmission acceptance circuitry 6 and a battery 1A or leads connected to a power source. Circuitry 6 controls an audio or visual indicator 7 and erases data in store 4 if errors in the data are detected.
GB5030171A 1971-10-28 1971-10-28 Data handling systems Expired GB1397240A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB5030171A GB1397240A (en) 1971-10-28 1971-10-28 Data handling systems
DE19722252897 DE2252897A1 (en) 1971-10-28 1972-10-27 PROBE FOR READING MAGNETICALLY RECORDED DATA
FR7238147A FR2159019A5 (en) 1971-10-28 1972-10-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5030171A GB1397240A (en) 1971-10-28 1971-10-28 Data handling systems

Publications (1)

Publication Number Publication Date
GB1397240A true GB1397240A (en) 1975-06-11

Family

ID=10455411

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5030171A Expired GB1397240A (en) 1971-10-28 1971-10-28 Data handling systems

Country Status (3)

Country Link
DE (1) DE2252897A1 (en)
FR (1) FR2159019A5 (en)
GB (1) GB1397240A (en)

Also Published As

Publication number Publication date
FR2159019A5 (en) 1973-06-15
DE2252897A1 (en) 1973-05-03

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees