FR1220423A - Digital electronic calculator - Google Patents

Digital electronic calculator

Info

Publication number
FR1220423A
FR1220423A FR790401A FR790401A FR1220423A FR 1220423 A FR1220423 A FR 1220423A FR 790401 A FR790401 A FR 790401A FR 790401 A FR790401 A FR 790401A FR 1220423 A FR1220423 A FR 1220423A
Authority
FR
France
Prior art keywords
digital electronic
electronic calculator
calculator
digital
electronic
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
FR790401A
Other languages
French (fr)
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.)
AV Roe and Co Ltd
Original Assignee
AV Roe and Co 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
Application filed by AV Roe and Co Ltd filed Critical AV Roe and Co Ltd
Application granted granted Critical
Publication of FR1220423A publication Critical patent/FR1220423A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/64—Digital differential analysers, i.e. computing devices for differentiation, integration or solving differential or integral equations, using pulses representing increments; Other incremental computing devices for solving difference equations
    • G06F7/66—Digital differential analysers, i.e. computing devices for differentiation, integration or solving differential or integral equations, using pulses representing increments; Other incremental computing devices for solving difference equations wherein pulses represent unitary increments only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers
    • 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
    • H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
    • H03K5/24—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/08—Continuously compensating for, or preventing, undesired influence of physical parameters of noise

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Measurement Of Current Or Voltage (AREA)
FR790401A 1958-03-25 1959-03-25 Digital electronic calculator Expired FR1220423A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9506/58A GB880014A (en) 1958-03-25 1958-03-25 Improvements relating to digital computing engines

Publications (1)

Publication Number Publication Date
FR1220423A true FR1220423A (en) 1960-05-24

Family

ID=9873284

Family Applications (1)

Application Number Title Priority Date Filing Date
FR790401A Expired FR1220423A (en) 1958-03-25 1959-03-25 Digital electronic calculator

Country Status (2)

Country Link
FR (1) FR1220423A (en)
GB (1) GB880014A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB949196A (en) * 1959-05-19 1964-02-12 Emi Ltd Improvements in or relating to digital differential analysers

Also Published As

Publication number Publication date
GB880014A (en) 1961-10-18

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