GB912654A - Improvements in or relating to apparatus for sensing of recorded binary data - Google Patents

Improvements in or relating to apparatus for sensing of recorded binary data

Info

Publication number
GB912654A
GB912654A GB3043058A GB3043058A GB912654A GB 912654 A GB912654 A GB 912654A GB 3043058 A GB3043058 A GB 3043058A GB 3043058 A GB3043058 A GB 3043058A GB 912654 A GB912654 A GB 912654A
Authority
GB
United Kingdom
Prior art keywords
sensing
cells
arrangement
binary data
sept
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
GB3043058A
Inventor
Desmond Sydney Ridler
Peter Murden
Roger George
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB4179161A priority Critical patent/GB914646A/en
Priority to GB3043058A priority patent/GB912654A/en
Publication of GB912654A publication Critical patent/GB912654A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

912,654. Sensing record cards. STANDARD TELEPHONES & CABLES Ltd. Sept. 23, 1959 [Sept. 23, 1958], No. 30430/58. Class 106 (1). Relates to the sensing by photo-electric means of binary data stored as opaque and transparent portions in a two-dimensional array on a medium. According to the invention a selected portion of the array is sensed by an arrangement comprising light polarizing and analyzing filter means interposed between a light source and the medium. In the embodiments Kerr cells are used. In one arrangement parallel light is passed through polarizing filter A to emerge plane polarized at 45 degrees to the vertical ; thence through a set of parallel cells B forming the column selector, a first analyzing filter C, a further set of cells D forming the row selector, and a second analyzing filter E to photographic data storage plate F. In another arrangement the column and row selectors are made from complete plates of material, Fig. 3 (not shown).
GB3043058A 1958-09-23 1958-09-23 Improvements in or relating to apparatus for sensing of recorded binary data Expired GB912654A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4179161A GB914646A (en) 1958-09-23 1958-09-23 Improvements related to the sensing of recorded binary data
GB3043058A GB912654A (en) 1958-09-23 1958-09-23 Improvements in or relating to apparatus for sensing of recorded binary data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3043058A GB912654A (en) 1958-09-23 1958-09-23 Improvements in or relating to apparatus for sensing of recorded binary data

Publications (1)

Publication Number Publication Date
GB912654A true GB912654A (en) 1962-12-12

Family

ID=10307562

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4179161A Expired GB914646A (en) 1958-09-23 1958-09-23 Improvements related to the sensing of recorded binary data
GB3043058A Expired GB912654A (en) 1958-09-23 1958-09-23 Improvements in or relating to apparatus for sensing of recorded binary data

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB4179161A Expired GB914646A (en) 1958-09-23 1958-09-23 Improvements related to the sensing of recorded binary data

Country Status (1)

Country Link
GB (2) GB914646A (en)

Also Published As

Publication number Publication date
GB914646A (en) 1963-01-02

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