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GB943880A - Improvements in or relating to electrical signal code generating equipment - Google Patents

Improvements in or relating to electrical signal code generating equipment

Info

Publication number
GB943880A
GB943880A GB15910/61A GB1591061A GB943880A GB 943880 A GB943880 A GB 943880A GB 15910/61 A GB15910/61 A GB 15910/61A GB 1591061 A GB1591061 A GB 1591061A GB 943880 A GB943880 A GB 943880A
Authority
GB
United Kingdom
Prior art keywords
lamps
holes
depressed
blades
light
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
GB15910/61A
Other languages
English (en)
Inventor
Haydn Victor Purdy
Ronald Campbell Mcintosh
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.)
Purdy and Mcintosh Electronic Developments Ltd
Original Assignee
Purdy and Mcintosh Electronic Developments 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
Priority to NL277886D priority Critical patent/NL277886A/xx
Application filed by Purdy and Mcintosh Electronic Developments Ltd filed Critical Purdy and Mcintosh Electronic Developments Ltd
Priority to GB15910/61A priority patent/GB943880A/en
Priority to FR895913A priority patent/FR1325917A/fr
Priority to US191188A priority patent/US3253087A/en
Publication of GB943880A publication Critical patent/GB943880A/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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K21/00—Information retrieval from punched cards designed for manual use or handling by machine; Apparatus for handling such cards, e.g. marking or correcting
    • G06K21/04—Information retrieval from punched cards designed for manual use or handling by machine; Apparatus for handling such cards, e.g. marking or correcting in which coincidence of markings is sensed optically, e.g. peek-a-boo system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/16—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00 of transmitters, e.g. code-bars, code-discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Input From Keyboards Or The Like (AREA)
GB15910/61A 1961-05-02 1961-05-02 Improvements in or relating to electrical signal code generating equipment Expired GB943880A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL277886D NL277886A (xx) 1961-05-02
GB15910/61A GB943880A (en) 1961-05-02 1961-05-02 Improvements in or relating to electrical signal code generating equipment
FR895913A FR1325917A (fr) 1961-05-02 1962-04-27 équipements générateurs de codes de signaux électriques
US191188A US3253087A (en) 1961-05-02 1962-04-30 Electrical signal code generating equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15910/61A GB943880A (en) 1961-05-02 1961-05-02 Improvements in or relating to electrical signal code generating equipment

Publications (1)

Publication Number Publication Date
GB943880A true GB943880A (en) 1963-12-11

Family

ID=10067754

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15910/61A Expired GB943880A (en) 1961-05-02 1961-05-02 Improvements in or relating to electrical signal code generating equipment

Country Status (3)

Country Link
US (1) US3253087A (xx)
GB (1) GB943880A (xx)
NL (1) NL277886A (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603982A (en) * 1969-05-02 1971-09-07 Ncr Co Data entry means
CH505432A (de) * 1969-07-08 1971-03-31 Ciba Geigy Ag Verfahren zur Feststellung des Vorhandenseins aller für ein Arbeitsprogramm vorgeschriebenen Informationskarten und Vorrichtung zur Durchführung dieses Verfahrens
US3676689A (en) * 1970-12-30 1972-07-11 Ibm Optical code generating apparatus
DE2139543B2 (de) * 1971-08-06 1974-03-07 Standard Elektrik Lorenz Ag, 7000 Stuttgart Fotoelektrische Tastatur für Dateneingabegeräte oder dergleichen
US3856127A (en) * 1972-11-24 1974-12-24 U Halfon Photo-optical keyboard
US4795900A (en) * 1986-03-27 1989-01-03 Sadao Kokubu Optical switch device employing a fluorescent substance with a radioactive element as a light source

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB469809A (en) * 1936-01-31 1937-08-03 Creed & Co Ltd Improvements in or relating to telegraph keyboard transmitters
US2408754A (en) * 1944-07-27 1946-10-08 Teleregister Corp Photoelectric transmitting typewriter apparatus
US2438825A (en) * 1945-06-16 1948-03-30 Trans Lux Corp Selector
US2709001A (en) * 1952-10-10 1955-05-24 Walter A Stahl Sorting stamp
US2953300A (en) * 1957-01-22 1960-09-20 Edward D O'brian Tabulating constructions
US3017463A (en) * 1959-04-10 1962-01-16 Bendix Corp Keyboard apparatus

Also Published As

Publication number Publication date
US3253087A (en) 1966-05-24
NL277886A (xx)

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