BE487637A - - Google Patents

Info

Publication number
BE487637A
BE487637A BE487637DA BE487637A BE 487637 A BE487637 A BE 487637A BE 487637D A BE487637D A BE 487637DA BE 487637 A BE487637 A BE 487637A
Authority
BE
Belgium
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 BE487637A publication Critical patent/BE487637A/xx

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/24—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating logarithmic or exponential functions, e.g. hyperbolic functions
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/14—Arrangements for performing computing operations, e.g. operational amplifiers for addition or subtraction 
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
    • G06G7/161—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division with pulse modulation, e.g. modulation of amplitude, width, frequency, phase or form
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/18—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals
    • G06G7/1806—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals with respect to a variable other than time
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/19—Arrangements for performing computing operations, e.g. operational amplifiers for forming integrals of products, e.g. Fourier integrals, Laplace integrals, correlation integrals; for analysis or synthesis of functions using orthogonal functions
    • G06G7/1921—Arrangements for performing computing operations, e.g. operational amplifiers for forming integrals of products, e.g. Fourier integrals, Laplace integrals, correlation integrals; for analysis or synthesis of functions using orthogonal functions for forming Fourier integrals, harmonic analysis and synthesis
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/22—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating trigonometric functions; for conversion of co-ordinates; for computations involving vector quantities

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Analysis (AREA)
  • Algebra (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Power Engineering (AREA)
  • Feedback Control In General (AREA)
  • Tests Of Electric Status Of Batteries (AREA)
  • Electrotherapy Devices (AREA)
  • Control Of Eletrric Generators (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Generation Of Surge Voltage And Current (AREA)
BE487637D 1948-03-02 BE487637A (en:Method)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12633A US2652194A (en) 1948-03-02 1948-03-02 Electrical computer
US119637A US2671608A (en) 1948-03-02 1949-10-05 Electrical computer
US225721A US2666576A (en) 1948-03-02 1951-05-11 Electrical computer

Publications (1)

Publication Number Publication Date
BE487637A true BE487637A (en:Method)

Family

ID=27359667

Family Applications (1)

Application Number Title Priority Date Filing Date
BE487637D BE487637A (en:Method) 1948-03-02

Country Status (7)

Country Link
US (3) US2652194A (en:Method)
BE (1) BE487637A (en:Method)
CH (1) CH275493A (en:Method)
DE (1) DE815559C (en:Method)
FR (1) FR987026A (en:Method)
GB (3) GB663225A (en:Method)
NL (1) NL145103B (en:Method)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126904A (en) * 1964-03-31 Response in automatic control
US2700501A (en) * 1951-12-28 1955-01-25 Wang An Voltage detector
US3017106A (en) * 1954-01-13 1962-01-16 Sun Oil Co Computing circuits
US2880935A (en) * 1954-09-27 1959-04-07 Gilfillan Bros Inc Means for electronic multiplication
US2971698A (en) * 1955-03-14 1961-02-14 Gilfillan Bros Inc Function generating circuits requiring only linear elements
US3021064A (en) * 1955-05-24 1962-02-13 Digital Control Systems Inc Ordered time interval computing systems
NL208551A (en:Method) * 1955-07-02
US2901173A (en) * 1955-10-20 1959-08-25 Labinal Ets Apparatus for measuring the product of two concurrently varying quantities
US3004707A (en) * 1955-11-17 1961-10-17 Robert E Wilson Pulse center determining system
US2926852A (en) * 1956-05-01 1960-03-01 Hughes Aircraft Co Electronic resolver
GB745816A (en) * 1956-08-27 1956-03-07 Bendix Aviat Corp Improvements in digital integrating devices, particularly adapted for differential analysis
US2950053A (en) * 1956-10-15 1960-08-23 Hazeltine Research Inc Electrical integrator
US3048337A (en) * 1957-07-02 1962-08-07 Westinghouse Electric Corp Electron means for generating trigonometric functions
US2934274A (en) * 1957-07-31 1960-04-26 Itt Voltage ratio device
US3050253A (en) * 1958-11-17 1962-08-21 Phillips Petroleum Co Detector for sensing small rate of change signals
US3022005A (en) * 1959-01-12 1962-02-20 Ibm System for comparing information items to determine similarity therebetween
NL255345A (en:Method) * 1959-08-31
US3141969A (en) * 1960-05-03 1964-07-21 Curtiss Wright Corp Method of and apparatus for performing computations
US3131296A (en) * 1961-04-13 1964-04-28 Erik V Bohn Pulse position analog computer
US3205348A (en) * 1961-09-28 1965-09-07 Gulton Ind Inc Quotient circuit
US3268661A (en) * 1962-04-09 1966-08-23 Melpar Inc System for determining consonant formant loci
DE1260204B (de) * 1963-03-20 1968-02-01 Versuchsanstalt Fuer Luftfahrt Schaltungsanordnung zur Erzeugung einer Spannung aus drei gegebenen Spannungen A, B,C, die der Spannung A und einer Funktion des Verhaeltnisses B/C proportional ist
CH446740A (de) * 1965-04-15 1967-11-15 Philips Nv Analog-Digital-Wandler
DE2806596C2 (de) * 1978-02-16 1979-11-29 Danfoss A/S, Nordborg (Daenemark) Anordnung zum Potenzieren eines Signals
CN110648621B (zh) * 2019-10-30 2023-04-18 京东方科技集团股份有限公司 移位寄存器及其驱动方法、栅极驱动电路及显示装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2313666A (en) * 1940-01-26 1943-03-09 Rca Corp Logarithmic instrument circuit
US2401729A (en) * 1941-12-06 1946-06-11 Alfred N Goldsmith Impulse counting and selecting device
US2412467A (en) * 1942-04-30 1946-12-10 Rca Corp Electronic computer
US2403873A (en) * 1942-08-06 1946-07-09 Ncr Co Impulse emitter
US2422698A (en) * 1942-11-05 1947-06-24 Bell Telephone Labor Inc Time measuring system
US2426910A (en) * 1944-01-27 1947-09-02 Rca Corp Measurement of time between pulses
US2433254A (en) * 1946-01-07 1947-12-23 Aiken William Ross Electrical timing system
US2594731A (en) * 1949-07-14 1952-04-29 Teleregister Corp Apparatus for displaying magnetically stored data
US2558430A (en) * 1949-07-30 1951-06-26 Rca Corp Polynomial equation solver

Also Published As

Publication number Publication date
GB663225A (en) 1951-12-19
US2652194A (en) 1953-09-15
GB710916A (en) 1954-06-23
NL145103B (nl)
US2666576A (en) 1954-01-19
CH275493A (de) 1951-05-31
DE815559C (de) 1951-11-19
GB681500A (en) 1952-10-22
FR987026A (fr) 1951-08-08
US2671608A (en) 1954-03-09

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