GB1103292A - Apparatus for reading timing indicia from a moving record medium - Google Patents

Apparatus for reading timing indicia from a moving record medium

Info

Publication number
GB1103292A
GB1103292A GB2570965A GB2570965A GB1103292A GB 1103292 A GB1103292 A GB 1103292A GB 2570965 A GB2570965 A GB 2570965A GB 2570965 A GB2570965 A GB 2570965A GB 1103292 A GB1103292 A GB 1103292A
Authority
GB
United Kingdom
Prior art keywords
flip
flop
record medium
gates
june
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
GB2570965A
Inventor
Ronald John Frank Eitel
Geoffrey Philip Gilbert
Peter Edwin Wright
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.)
English Electric Computers Ltd
Original Assignee
English Electric Computers 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 English Electric Computers Ltd filed Critical English Electric Computers Ltd
Priority to GB2570965A priority Critical patent/GB1103292A/en
Priority to FR65962A priority patent/FR1495497A/en
Publication of GB1103292A publication Critical patent/GB1103292A/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
    • G06K7/01—Details
    • G06K7/016—Synchronisation of sensing process
    • G06K7/0163—Synchronisation of sensing process by means of additional timing marks on the record-carrier

Landscapes

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

Abstract

1,103,292. Counters. ENGLISH ELECTRIC COMPUTERS Ltd. 17 June. 1966 [17 June, 1965], No. 25709/65. Headings G4A and G4D. Passage of sprocket-holes in a tape 11 results in the successive activation of photo-cells A, B, and the successive marking through AND gates 20-23 of leads A<SP>1</SP>B<SP>1</SP>, AB<SP>1</SP>, AB, A<SP>1</SP>B. With flip-flop 28 initially set by a signal from 38, AND gates 24-27 respond to these markings to operate flip-flops 28-31 as a shift register. When any flip-flop turns on feed-back over a delay circuit 32-35 turns off the preceding flip-flop. Tape flutter causing temporary reversal has no effect provided the amplitude is low. Completion of a cycle produces an output fed to a counter at 36.
GB2570965A 1965-06-17 1965-06-17 Apparatus for reading timing indicia from a moving record medium Expired GB1103292A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2570965A GB1103292A (en) 1965-06-17 1965-06-17 Apparatus for reading timing indicia from a moving record medium
FR65962A FR1495497A (en) 1965-06-17 1966-06-17 Timing index reading device on a moving recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2570965A GB1103292A (en) 1965-06-17 1965-06-17 Apparatus for reading timing indicia from a moving record medium

Publications (1)

Publication Number Publication Date
GB1103292A true GB1103292A (en) 1968-02-14

Family

ID=10232014

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2570965A Expired GB1103292A (en) 1965-06-17 1965-06-17 Apparatus for reading timing indicia from a moving record medium

Country Status (1)

Country Link
GB (1) GB1103292A (en)

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