NL277886A - - Google Patents

Info

Publication number
NL277886A
NL277886A NL277886DA NL277886A NL 277886 A NL277886 A NL 277886A NL 277886D A NL277886D A NL 277886DA NL 277886 A NL277886 A NL 277886A
Authority
NL
Netherlands
Application number
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.)
Publication of NL277886A publication Critical patent/NL277886A/xx

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)
NL277886D 1961-05-02 NL277886A (fr)

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
NL277886A true NL277886A (fr)

Family

ID=10067754

Family Applications (1)

Application Number Title Priority Date Filing Date
NL277886D NL277886A (fr) 1961-05-02

Country Status (3)

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

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
GB943880A (en) 1963-12-11
US3253087A (en) 1966-05-24

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