BE487637A - - Google Patents

Info

Publication number: BE487637A
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.)

1948-03-02

Publication of BE487637A publication Critical patent/BE487637A/xx

Classifications

- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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; CALCULATING OR 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; CALCULATING OR 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; CALCULATING OR 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; CALCULATING OR 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; CALCULATING OR 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

BE487637D 1948-03-02 BE487637A (xx)

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 (xx)

Family

ID=27359667

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE487637D BE487637A (xx)	1948-03-02

Country Status (7)

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

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 (xx) *	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 (xx) *	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

0
- NL NL717102029A patent/NL145103B/xx unknown
- BE BE487637D patent/BE487637A/xx unknown
1948
- 1948-03-02 US US12633A patent/US2652194A/en not_active Expired - Lifetime
1949
- 1949-02-07 CH CH275493D patent/CH275493A/de unknown
- 1949-02-11 DE DEP33907D patent/DE815559C/de not_active Expired
- 1949-02-16 GB GB4279/49A patent/GB663225A/en not_active Expired
- 1949-02-22 FR FR987026D patent/FR987026A/fr not_active Expired
- 1949-10-05 US US119637A patent/US2671608A/en not_active Expired - Lifetime
1950
- 1950-09-18 GB GB22871/50A patent/GB681500A/en not_active Expired
1951
- 1951-05-11 US US225721A patent/US2666576A/en not_active Expired - Lifetime
1952
- 1952-04-23 GB GB10221/52A patent/GB710916A/en not_active Expired

Also Published As

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

Publication	Publication Date	Title
AT165629B (xx)	1950-03-25
AT165757B (xx)	1950-04-25
AT166638B (xx)	1950-08-25
FR964140A (xx)	1950-08-07
FR940580A (xx)	1948-12-24
BE448428A (xx)
BE480221A (xx)
BE481876A (xx)
BE491788A (xx)	1949-11-14
BE412124A (xx)
BE429008A (xx)
BE43050A (xx)
BE481873A (xx)
BE461649A (xx)
NL97461C (xx)
BE469104A (xx)
NL80454C (xx)
NL77162C (xx)
BE477919A (xx)
NL74623C (xx)
NL72012C (xx)	1953-03-16
NL70098C (xx)
BE478011A (xx)
LU29337A1 (xx)	1951-07-27
BE267826A (xx)