NL7006501A - - Google Patents

Info

Publication number
NL7006501A
NL7006501A NL7006501A NL7006501A NL7006501A NL 7006501 A NL7006501 A NL 7006501A NL 7006501 A NL7006501 A NL 7006501A NL 7006501 A NL7006501 A NL 7006501A NL 7006501 A NL7006501 A NL 7006501A
Authority
NL
Netherlands
Application number
NL7006501A
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 filed Critical
Publication of NL7006501A publication Critical patent/NL7006501A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
    • H03M11/02—Details
    • H03M11/04—Coding of multifunction keys
    • H03M11/14—Coding of multifunction keys by using additional keys, e.g. shift keys, which determine the function performed by the multifunction key
    • H03M11/16—Coding of multifunction keys by using additional keys, e.g. shift keys, which determine the function performed by the multifunction key wherein the shift keys are operated after the operation of the multifunction keys
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Calculators And Similar Devices (AREA)
NL7006501A 1969-05-05 1970-05-02 NL7006501A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82159069A 1969-05-05 1969-05-05

Publications (1)

Publication Number Publication Date
NL7006501A true NL7006501A (xx) 1970-11-09

Family

ID=25233774

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7006501A NL7006501A (xx) 1969-05-05 1970-05-02

Country Status (5)

Country Link
US (1) US3597600A (xx)
JP (1) JPS5138504B1 (xx)
CA (1) CA933664A (xx)
GB (1) GB1278151A (xx)
NL (1) NL7006501A (xx)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS521619B1 (xx) * 1971-02-24 1977-01-17
US3762637A (en) * 1971-08-05 1973-10-02 Scm Corp Dual-function keys for sign change and correction of erroneous entries
US3839630A (en) * 1971-12-27 1974-10-01 Hewlett Packard Co Programmable calculator employing algebraic language
US4178633A (en) * 1971-12-27 1979-12-11 Hewlett-Packard Company Programmable calculator including multifunction keys
IT963237B (it) * 1972-07-21 1974-01-10 Praxis Spa Procedimento per il trattamento di dati nella trasmissione e o nel tra sferimento di dati e mezzi per rea lizzarlo
US3955074A (en) * 1972-10-30 1976-05-04 Hewlett-Packard Company General purpose calculator having keys with more than one function assigned thereto
US3984816A (en) * 1973-05-16 1976-10-05 Texas Instruments, Inc. Expandable function electronic calculator
US3892958A (en) * 1974-01-11 1975-07-01 Hewlett Packard Co Inverse/complementary function prefix key
US3914587A (en) * 1974-03-29 1975-10-21 Rockwell International Corp Calculator having a memory preset key
JPS5545471Y2 (xx) * 1975-04-03 1980-10-24
US4164666A (en) * 1976-06-08 1979-08-14 Toyko Shibaura Electric Co., Ltd. Electronic apparatus using complementary MOS transistor dynamic clocked logic circuits
DE2640848C2 (de) * 1976-09-10 1983-02-10 Siemens AG, 1000 Berlin und 8000 München Anordnung zum Codieren und Decodieren von alphanumerischen Informationszeichen
JPS609293B2 (ja) * 1978-06-29 1985-03-09 カシオ計算機株式会社 キ−入力制御方式
US4490056A (en) * 1982-09-22 1984-12-25 Whitaker Ranald O Combinational keyboard utilizing sequential operation of keys
US4567567A (en) * 1983-01-21 1986-01-28 The Laitram Corporation Computer keyboard displaying many operating instructions with few keys
US4680725A (en) * 1983-01-21 1987-07-14 The Laitram Corporation Dual function decimal key
USD774033S1 (en) * 2014-09-15 2016-12-13 Amazon Technologies, Inc. Keypad

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978680A (en) * 1957-12-06 1961-04-04 Bell Telephone Labor Inc Precession storage delay circuit
US3200375A (en) * 1961-09-05 1965-08-10 Hughes Aircraft Co Keyboard for controlling signal generator having means for changing key designations
DE1290743B (de) * 1964-09-21 1969-03-13 Olympia Werke Ag Vorrichtung zum Auswaehlen von Gangarten in Rechenmaschinen
US3405392A (en) * 1965-04-30 1968-10-08 Sperry Rand Corp Electronic calculators
US3509329A (en) * 1966-10-24 1970-04-28 Wang Laboratories Calculator

Also Published As

Publication number Publication date
CA933664A (en) 1973-09-11
GB1278151A (en) 1972-06-14
JPS5138504B1 (xx) 1976-10-22
US3597600A (en) 1971-08-03

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