CA432262A - Radiorecepteur a modulation des frequences - Google Patents

Radiorecepteur a modulation des frequences

Info

Publication number: CA432262A
Authority: CA; Canada
Prior art keywords: frequency modulation; radio receiver; modulation radio; receiver; frequency
Prior art date: 1943-04-27
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

CA432262A

Other languages

English (en)

Inventor

B. Dome Robert

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.)

General Electric Canada Co

Original Assignee

Canadian General Electric 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.)

1943-04-27

Publication date

1946-01-01

1946-01-01 Application granted granted Critical

1946-01-01 Publication of CA432262A publication Critical patent/CA432262A/fr

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/06—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators
- H03D3/08—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators by means of diodes, e.g. Foster-Seeley discriminator
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/06—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators
- H03D3/08—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators by means of diodes, e.g. Foster-Seeley discriminator
- H03D3/10—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators by means of diodes, e.g. Foster-Seeley discriminator in which the diodes are simultaneously conducting during the same half period of the signal, e.g. radio detector
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/22—Automatic control in amplifiers having discharge tubes
- H03G3/26—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise, e.g. squelch systems
- H03G3/28—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise, e.g. squelch systems in frequency-modulation receivers ; in angle-modulation receivers

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Amplifiers (AREA)
Video Image Reproduction Devices For Color Tv Systems (AREA)

CA432262A 1943-04-27 Radiorecepteur a modulation des frequences Expired CA432262A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US484718A US2362806A (en)	1943-04-27	1943-04-27	Frequency modulation receiver

Publications (1)

Publication Number	Publication Date
CA432262A true CA432262A (fr)	1946-01-01

Family

ID=23925312

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA432262A Expired CA432262A (fr)	1943-04-27		Radiorecepteur a modulation des frequences

Country Status (5)

Country	Link
US (1)	US2362806A (fr)
BE (3)	BE479154A (fr)
CA (1)	CA432262A (fr)
FR (2)	FR938602A (fr)
GB (1)	GB594769A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2519890A (en) *	1944-12-09	1950-08-22	Rca Corp	Angle modulated wave receiver
US2501120A (en) *	1945-04-26	1950-03-21	Rca Corp	Frequency modulation receiver tuning aid
US2525359A (en) *	1946-04-04	1950-10-10	Rca Corp	Frequency modulation receiver tuning aid
US2620439A (en) *	1947-11-05	1952-12-02	Gen Electric	Noise balancing circuits
US2612602A (en) *	1948-11-19	1952-09-30	Gen Electric	Noise suppression circuit
CN107453346B (zh) *	2016-05-30	2022-03-18	中国电力科学研究院	一种适用于配电网重构的负荷曲线时段划分方法

0
- BE BE479153D patent/BE479153A/xx unknown
- FR FR961086D patent/FR961086A/fr not_active Expired
- CA CA432262A patent/CA432262A/fr not_active Expired
- BE BE482547D patent/BE482547A/xx unknown
- BE BE479154D patent/BE479154A/xx unknown
1943
- 1943-04-27 US US484718A patent/US2362806A/en not_active Expired - Lifetime
1944
- 1944-04-26 GB GB7770/44A patent/GB594769A/en not_active Expired
1946
- 1946-09-02 FR FR938602D patent/FR938602A/fr not_active Expired

Also Published As

Publication number	Publication date
GB594769A (en)	1947-11-19
US2362806A (en)	1944-11-14
FR938602A (fr)	1948-10-20
BE482547A (fr)
FR961086A (fr)	1950-05-03
BE479153A (fr)
BE479154A (fr)

Publication	Publication Date	Title
CA432262A (fr)	1946-01-01	Radiorecepteur a modulation des frequences
CA414042A (fr)	1943-07-20	Recepteur a modulation des frequences
AU118264B2 (en)		Frequency modulation receiver
CA409927A (fr)	1943-01-12	Radiorecepteur a hautes frequences
AU119138B2 (en)		Frequency modulation receiver circuit
AU119287B2 (en)		Frequency modulation receiver circuits
CA414084A (fr)	1943-07-27	Systeme de radiofrequences
AU120004B2 (en)		Radio receiver
CA406300A (fr)	1942-07-21	Radiorecepteur a hautes frequences
CA415245A (fr)	1943-09-14	Dispositif de syntonisation de la radio
AU118628B2 (en)	1944-06-29	Frequency modulation communication system
CA412400A (fr)	1943-05-11	Radioemetteur
AU125062B2 (en)	1947-08-14	Frequency modulation
CA417697A (fr)	1944-01-11	Systeme de modulation des frequences de la radio
CA416876A (fr)	1943-12-07	Radiorecepteur superheterodyne
CA411514A (fr)	1943-03-30	Radiorecepteur superheterodyne
AU122457B2 (en)	1946-10-24	Frequency modulation receiver
CA410745A (fr)	1943-02-23	Radiorecepteur a signaux porteurs
CA413098A (fr)	1943-06-08	Arrangement de syntonisation de la radio
AU833243A (en)	1944-06-29	Frequency modulation communication system
CA409830A (fr)	1943-01-05	Mecanisme de syntonisation de radiorecepteur
CA409999A (fr)	1943-01-12	Mecanisme de syntonisation de radiorecepteur
CA410273A (fr)	1943-01-26	Antenne a hautes frequences
AU131440B2 (en)	1944-01-04	High frequency antenna
CA412118A (fr)	1943-04-27	Agencement de syntonisation de radiorecepteur