FR1174398A - Electronic device for obtaining addition, subtraction and frequency multiplication of electrical signals - Google Patents

Electronic device for obtaining addition, subtraction and frequency multiplication of electrical signals

Info

Publication number: FR1174398A
Authority: FR; France
Prior art keywords: subtraction; electronic device; electrical signals; frequency multiplication; obtaining addition
Prior art date: 1956-05-02
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

Other languages

French (fr)

Inventor

Olof Erik Hans Rydbeck

Carl Marten Eugen Stenhardt

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.)

1956-05-02

Filing date

1957-04-30

Publication date

1959-03-10

1957-04-30 Application filed filed Critical

1959-03-10 Application granted granted Critical

1959-03-10 Publication of FR1174398A publication Critical patent/FR1174398A/en

Status Expired legal-status Critical Current

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
- G06G7/14—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
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
- H01J31/04—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused with only one or two output electrodes with only two electrically independant groups or electrodes
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Mathematical Physics (AREA)
Theoretical Computer Science (AREA)
Software Systems (AREA)
Computer Hardware Design (AREA)
General Physics & Mathematics (AREA)
Power Engineering (AREA)
Apparatus For Radiation Diagnosis (AREA)
Particle Accelerators (AREA)
Video Image Reproduction Devices For Color Tv Systems (AREA)

FR1174398D 1956-05-02 1957-04-30 Electronic device for obtaining addition, subtraction and frequency multiplication of electrical signals Expired FR1174398A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE856018X		1956-05-02

Publications (1)

Publication Number	Publication Date
FR1174398A true FR1174398A (en)	1959-03-10

Family

ID=20362825

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR1174398D Expired FR1174398A (en)	1956-05-02	1957-04-30	Electronic device for obtaining addition, subtraction and frequency multiplication of electrical signals

Country Status (4)

Country	Link
US (1)	US2974295A (en)
DE (1)	DE1092136B (en)
FR (1)	FR1174398A (en)
GB (1)	GB856018A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3308381A (en) *	1961-07-03	1967-03-07	Hammond Res Corp	Communication system utilizing selective sweep pattern
DE1266989B (en) *	1963-10-30	1968-04-25	Zeiss Carl Fa	Device for interpolation
US3400391A (en) *	1963-10-30	1968-09-03	Zeiss Carl	Interpolation device
US3579013A (en) *	1969-02-12	1971-05-18	Hughes Aircraft Co	Cathode ray tube having radially directed commutator elements
GB2196175B (en) *	1986-10-03	1990-10-17	Trialsite Ltd	Production of pulsed electron beams

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB328680A (en) *	1930-07-22	1930-05-05	John Henry Owen Harries	Improvements in and relating to the production and/or modulation of periodic electric currents
FR809061A (en) *	1935-11-13	1937-02-23		Improvements to very high frequency current generators
US2185684A (en) *	1938-11-05	1940-01-02	Bell Telephone Labor Inc	Signal wave modulation
US2290651A (en) *	1939-09-26	1942-07-21	William H Peck	Television system
US2507170A (en) *	1946-10-23	1950-05-09	Rca Corp	Timing modulation
US2551024A (en) *	1946-12-20	1951-05-01	Gen Electric Co Ltd	Multiplex arrangement for generating time-modulated pulses
GB652397A (en) *	1948-03-16	1951-04-25	Gen Electric Co Ltd	Improvements in and relating to multi-channel pulse signalling systems
US2547397A (en) *	1948-12-29	1951-04-03	Bell Telephone Labor Inc	Signal sampling and modulation
US2533401A (en) *	1949-09-14	1950-12-12	Nat Union Radio Corp	Coincidence detector of the focused rotary electron beam kind
NL84032C (en) *	1953-09-26

1957
- 1957-04-29 GB GB13550/57A patent/GB856018A/en not_active Expired
- 1957-04-29 US US655788A patent/US2974295A/en not_active Expired - Lifetime
- 1957-04-30 FR FR1174398D patent/FR1174398A/en not_active Expired
- 1957-04-30 DE DER21072A patent/DE1092136B/en active Pending

Also Published As

Publication number	Publication date
US2974295A (en)	1961-03-07
DE1092136B (en)	1960-11-03
GB856018A (en)	1960-12-14

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