NL284427A - - Google Patents

Info

Publication number: NL284427A
Authority: NL; Netherlands
Prior art keywords: stage; circuit; tuned; base; transistor
Prior art date: 1961-10-18

Application number

Other languages

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.)

1961-10-18

Publication of NL284427A publication Critical patent/NL284427A/xx

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D5/00—Circuits for demodulating amplitude-modulated or angle-modulated oscillations at will
- 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
- H03D3/14—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 semiconductor devices having more than two electrodes
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
- H03G3/3068—Circuits generating control signals for both R.F. and I.F. stages

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Circuits Of Receivers In General (AREA)
Amplifiers (AREA)
Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Superheterodyne Receivers (AREA)

NL284427D 1961-10-18 NL284427A (xx)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US145833A US3172040A (en)	1961-10-18	1961-10-18	Am/fm receiver having automatic gain control

Publications (1)

Publication Number	Publication Date
NL284427A true NL284427A (xx)

Family

ID=22514766

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL284427D NL284427A (xx)	1961-10-18

Country Status (7)

Country	Link
US (1)	US3172040A (xx)
BE (1)	BE623643A (xx)
DE (1)	DE1201424B (xx)
FR (1)	FR1337030A (xx)
GB (1)	GB989860A (xx)
NL (1)	NL284427A (xx)
SE (1)	SE308742B (xx)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3287644A (en) *	1963-05-20	1966-11-22	Zenith Radio Corp	Automatic gain controlled plural wave band radio receiver
US3289088A (en) *	1963-05-29	1966-11-29	Gerald M Berger	Automatic non-linear gain control circuit
US3389338A (en) *	1964-11-24	1968-06-18	Bendix Corp	Simplified band switching for fm-am receiver
US3457513A (en) *	1965-10-11	1969-07-22	Avco Corp	Multi-purpose receiver with single detector for demodulating a plurality of types of signals
US3382440A (en) *	1966-10-10	1968-05-07	William T. Turner	Apparatus for automatically converting a radio receiver to an fm or vhf receiver
US3528013A (en) *	1967-09-25	1970-09-08	Zenith Radio Corp	Dual frequency intermediate-frequency coupling circuit
US3679979A (en) *	1969-06-26	1972-07-25	Sarkes Tarzian	Am, fm, and fm stereo tuner having simplified am to fm switching means
GB1284007A (en) *	1969-09-17	1972-08-02	Matsushita Electric Ind Co Ltd	Am-fm radio receiver
US4050022A (en) *	1975-10-20	1977-09-20	General Electric Company	AM-FM receiver having improved mode conversion
US4150336A (en) *	1978-01-06	1979-04-17	Quadracast Systems, Inc.	AM/FM Intermediate frequency gain stage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA448851A (en) *		1948-06-01	Wentz Huff John	Combined amplitude modulation and frequency modulation receiver stage
BE514215A (xx) *	1951-09-17
US2709748A (en) *	1952-08-16	1955-05-31	Westinghouse Electric Corp	Radio detector apparatus

0
- BE BE623643D patent/BE623643A/xx unknown
- NL NL284427D patent/NL284427A/xx unknown
1961
- 1961-10-18 US US145833A patent/US3172040A/en not_active Expired - Lifetime
1962
- 1962-10-02 GB GB37398/62A patent/GB989860A/en not_active Expired
- 1962-10-17 SE SE11145/62A patent/SE308742B/xx unknown
- 1962-10-17 FR FR912520A patent/FR1337030A/fr not_active Expired
- 1962-10-17 DE DER33700A patent/DE1201424B/de active Pending

Also Published As

Publication number	Publication date
GB989860A (en)	1965-04-22
BE623643A (xx)
DE1201424B (de)	1965-09-23
SE308742B (xx)	1969-02-24
US3172040A (en)	1965-03-02
FR1337030A (fr)	1963-09-06

Similar Documents

Publication	Publication Date	Title
NL284427A (xx)
US2496063A (en)	1950-01-31	Automatic tuning circuit for radio receivers
GB1024258A (en)	1966-03-30	Improvements in or relating to automatic frequency control circuit arrangements
US2281661A (en)	1942-05-05	Tuning system
GB1273315A (en)	1972-05-10	Signal overload compensation circuit for antenna tuning system
US3243708A (en)	1966-03-29	Vehicular radio receiver for both amplitude and frequency modulation reception
GB1267907A (en)	1972-03-22	Signal overload compensation circuit for antenna tuning system
US2894126A (en)	1959-07-07	Radio frequency amplifier and converter
US3167719A (en)	1965-01-26	Phase locked detector
GB1151048A (en)	1969-05-07	Aerial Input Circuit for Radio Receivers.
US2075526A (en)	1937-03-30	Radio signal receiving system
US2207934A (en)	1940-07-16	Automatic frequency control system
US2983815A (en)	1961-05-09	Automatic gain control
US2569687A (en)	1951-10-02	Signal detector circuit
US2885545A (en)	1959-05-05	Superregenerative receiver with antenna and open-circuited diode connected to input
US2511014A (en)	1950-06-13	Diversity receiving combination
US3077562A (en)	1963-02-12	High gain radio receiver
US2037498A (en)	1936-04-14	Variable radio frequency selectivity control
GB856892A (en)	1960-12-21	Means for reducing the threshold of angular-modulation receivers
US2612602A (en)	1952-09-30	Noise suppression circuit
US2148604A (en)	1939-02-28	Signal-translating system
US2140391A (en)	1938-12-13	Automatic selectivity control
US2171679A (en)	1939-09-05	Heterodyne receiver
GB702310A (en)	1954-01-13	Improvements in wide-band amplifier circuits
US2013650A (en)	1935-09-10	Preselector circuit for high frequency receivers