FR878762A - Procédé de régulation de fréquence - Google Patents

Procédé de régulation de fréquence

Info

Publication number: FR878762A
Authority: FR; France
Prior art keywords: regulation method; frequency regulation; frequency; regulation
Prior art date: 1940-02-20
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

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.)

ELECTRIGAL RES PRODUCTS Inc

Original Assignee

ELECTRIGAL RES PRODUCTS Inc

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.)

1940-02-20

Filing date

1941-01-24

Publication date

1943-01-29

1941-01-24 Application filed by ELECTRIGAL RES PRODUCTS Inc filed Critical ELECTRIGAL RES PRODUCTS Inc

1943-01-29 Application granted granted Critical

1943-01-29 Publication of FR878762A publication Critical patent/FR878762A/fr

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/04—Means in or combined with modulating stage for reducing amplitude modulation
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/10—Angle modulation by means of variable impedance
- H03C3/28—Angle modulation by means of variable impedance using variable impedance driven mechanically or acoustically

FR878762D 1940-02-20 1941-01-24 Procédé de régulation de fréquence Expired FR878762A (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US319877A US2218524A (en)	1940-02-20	1940-02-20	Frequency modulation system
US326898A US2250104A (en)	1940-02-20	1940-03-30	Frequency regulation

Publications (1)

Publication Number	Publication Date
FR878762A true FR878762A (fr)	1943-01-29

Family

ID=26982185

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
FR869048D Expired FR869048A (fr)	1940-02-20	1941-01-02	Systèmes de transmission à modulation de fréquence
FR878762D Expired FR878762A (fr)	1940-02-20	1941-01-24	Procédé de régulation de fréquence

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
FR869048D Expired FR869048A (fr)	1940-02-20	1941-01-02	Systèmes de transmission à modulation de fréquence

Country Status (6)

Country	Link
US (2)	US2218524A (fr)
BE (1)	BE441132A (fr)
DE (1)	DE882424C (fr)
FR (2)	FR869048A (fr)
GB (1)	GB546677A (fr)
NL (1)	NL67475C (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2425657A (en) *	1941-04-17	1947-08-12	Rca Corp	Short-wave apparatus
US2440600A (en) *	1941-05-14	1948-04-27	Rca Corp	Electric motor control
US2475779A (en) *	1941-05-14	1949-07-12	Rca Corp	Wave length modulator and control means
US2794956A (en) *	1942-06-30	1957-06-04	Fox Benjamin	Frequency modulation system
US2966676A (en) *	1942-06-30	1960-12-27	Bessie E Fox	Electronic apparatus and method for measuring distance
US2422422A (en) *	1942-08-31	1947-06-17	Rca Corp	Reactance tube controlled generator
US2415868A (en) *	1942-10-28	1947-02-18	Rca Corp	Timing modulation
US2434259A (en) *	1943-06-22	1948-01-13	Bell Telephone Labor Inc	Circuit arrangement utilizing a plurality of electron discharge devices
US2511137A (en) *	1944-12-16	1950-06-13	Rca Corp	Frequency control
US2609509A (en) *	1945-06-13	1952-09-02	Bertram C Hill	Electrical testing apparatus
US2490448A (en) *	1945-11-09	1949-12-06	Amalgamated Wireless Australas	Frequency changer
US2588730A (en) *	1947-05-02	1952-03-11	Wayne R Johnson	Method and apparatus for frequency response measurement
US2615129A (en) *	1947-05-16	1952-10-21	Edwin M Mcmillan	Synchro-cyclotron
US2659813A (en) *	1950-02-11	1953-11-17	Bell Telephone Labor Inc	Frequency modulation repeater
US2688730A (en) *	1950-10-18	1954-09-07	Smith Meeker Engineering Co	Stable frequency generator system
US2761065A (en) *	1953-05-27	1956-08-28	Harris A Robinson	Frequency control system
US3202918A (en) *	1962-10-03	1965-08-24	Armand P Lucchesi	Frequency multiplier
US3789302A (en) *	1972-03-31	1974-01-29	Microwave Ass Inc	Fm heterodyne transmitter
US10424278B2 (en) *	2017-08-02	2019-09-24	Applied Invention, Llc	Bell with subharmonic difference tone

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE399079A (fr) *	1931-09-17
NL57985C (fr) *	1937-07-09

1940
- 1940-02-20 US US319877A patent/US2218524A/en not_active Expired - Lifetime
- 1940-03-30 US US326898A patent/US2250104A/en not_active Expired - Lifetime
1941
- 1941-01-02 FR FR869048D patent/FR869048A/fr not_active Expired
- 1941-01-24 FR FR878762D patent/FR878762A/fr not_active Expired
- 1941-03-18 GB GB3689/41A patent/GB546677A/en not_active Expired
- 1941-03-27 DE DEW719D patent/DE882424C/de not_active Expired
- 1941-04-10 BE BE441132D patent/BE441132A/xx unknown
1944
- 1944-02-11 NL NL115248A patent/NL67475C/xx active

Also Published As

Publication number	Publication date
DE882424C (de)	1953-07-09
FR869048A (fr)	1942-01-22
US2250104A (en)	1941-07-22
US2218524A (en)	1940-10-22
NL67475C (fr)	1951-03-15
GB546677A (en)	1942-07-24
BE441132A (fr)	1941-10-31

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