CH335878A - Calculatrice électronique - Google Patents

Calculatrice électronique

Info

Publication number
CH335878A
CH335878A CH335878DA CH335878A CH 335878 A CH335878 A CH 335878A CH 335878D A CH335878D A CH 335878DA CH 335878 A CH335878 A CH 335878A
Authority
CH
Switzerland
Prior art keywords
electronic calculator
calculator
electronic
Prior art date
Application number
Other languages
English (en)
Original Assignee
Ncr Co
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 Ncr Co filed Critical Ncr Co
Publication of CH335878A publication Critical patent/CH335878A/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/54—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements of vacuum tubes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/01—Modifications for accelerating switching
    • H03K19/013—Modifications for accelerating switching in bipolar transistor circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/12—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using diode rectifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers
    • H03K21/02—Input circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/003—Changing the DC level
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/12—Shaping pulses by steepening leading or trailing edges

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Computing Systems (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Logic Circuits (AREA)
  • Manipulation Of Pulses (AREA)
  • X-Ray Techniques (AREA)
CH335878D 1955-02-23 1956-02-21 Calculatrice électronique CH335878A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US490028A US2863054A (en) 1955-02-23 1955-02-23 Logical gate correcting circuit

Publications (1)

Publication Number Publication Date
CH335878A true CH335878A (fr) 1959-01-31

Family

ID=23946314

Family Applications (1)

Application Number Title Priority Date Filing Date
CH335878D CH335878A (fr) 1955-02-23 1956-02-21 Calculatrice électronique

Country Status (7)

Country Link
US (1) US2863054A (fr)
BE (1) BE545443A (fr)
CH (1) CH335878A (fr)
DE (1) DE1086461B (fr)
FR (1) FR1148585A (fr)
GB (1) GB787939A (fr)
NL (2) NL113935C (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3058113A (en) * 1959-03-30 1962-10-09 Ampex Noise elimination circuit for pulse duration modulation recording
NL252942A (fr) * 1959-07-01
US2980858A (en) * 1959-12-07 1961-04-18 Collins Radio Co Digital synchronization circuit operating by inserting extra pulses into or delayingpulses from clock pulse train
US3270288A (en) * 1963-09-18 1966-08-30 Ball Brothers Res Corp System for reshaping and retiming a digital signal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB705478A (en) * 1949-01-17 1954-03-17 Nat Res Dev Electronic computing circuits
US2570225A (en) * 1950-03-13 1951-10-09 Bell Telephone Labor Inc Series electronic switch
US2762936A (en) * 1952-12-20 1956-09-11 Hughes Aircraft Co Diode, pulse-gating circuits

Also Published As

Publication number Publication date
NL204777A (fr)
FR1148585A (fr) 1957-12-11
DE1086461B (de) 1960-08-04
NL113935C (fr)
GB787939A (en) 1957-12-18
BE545443A (fr)
US2863054A (en) 1958-12-02

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