NL79628B - - Google Patents

Info

Publication number: NL79628B
Authority: NL; Netherlands

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.)

1935-10-17

Publication of NL79628B publication Critical patent/NL79628B/xx

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
- H03J7/042—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant with reactance tube
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
- 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

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Amplifiers (AREA)
Circuits Of Receivers In General (AREA)
Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Measurement Of Resistance Or Impedance (AREA)
Measuring Phase Differences (AREA)

NL79628D 1935-10-17 NL79628B (US08124317-20120228-C00034.png)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US45413A US2121103A (en)	1935-10-17	1935-10-17	Frequency variation response circuits

Publications (1)

Publication Number	Publication Date
NL79628B true NL79628B (US08124317-20120228-C00034.png)

Family

ID=21937734

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
NL79628D NL79628B (US08124317-20120228-C00034.png)	1935-10-17
NL52037D NL52037C (US08124317-20120228-C00034.png)	1935-10-17	1936-10-16

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
NL52037D NL52037C (US08124317-20120228-C00034.png)	1935-10-17	1936-10-16

Country Status (4)

Country	Link
US (2)	US2121103A (US08124317-20120228-C00034.png)
DE (2)	DE685380C (US08124317-20120228-C00034.png)
GB (1)	GB489094A (US08124317-20120228-C00034.png)
NL (2)	NL52037C (US08124317-20120228-C00034.png)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2433361A (en) *	1940-01-20	1947-12-30	Submarine Signal Co	Method and apparatus for echo ranging
DE938386C (de) *	1941-04-01	1956-01-26	Heinz Fleck Dr	Gleichrichter mit Gegenkopplung auf einen vorgeschalteten Verstaerker
DE878971C (de) *	1941-08-16	1953-04-23	Philips Nv	UEberlagerungsempfaenger mit selbsttaetiger Frequenzregelung
DE943955C (de) *	1942-01-18	1956-06-07	Telefunken Gmbh	Auf Frequenzaenderungen ansprechende Schaltungsanordnung
US2434914A (en) *	1942-04-21	1948-01-27	Standard Telephones Cables Ltd	Frequency indicating cathode-ray oscilloscope
US2447098A (en) *	1943-06-28	1948-08-17	Stanolind Oil & Gas Co	Signaling system
US2523341A (en) *	1943-11-02	1950-09-26	Int Standard Electric Corp	Vibrating device
US2457136A (en) *	1943-12-08	1948-12-28	Int Standard Electric Corp	Arrangement for frequency measurements
US2425999A (en) *	1943-12-20	1947-08-19	Gen Electric	Signal portraying apparatus
DE898036C (de) *	1944-01-04	1953-11-26	Svenska Aktiebolag Gasaccumula	Vorrichtung zum Messen von Phasenwinkeln, beispielsweise fuer die Bestimmung einer Funkpeilrichtung
GB577758A (en) *	1944-03-25	1946-05-30	Eric Lawrence Casling White	Improvements in or relating to apparatus for transmitting or receiving frequency-modulated oscillations
US2527523A (en) *	1944-08-11	1950-10-31	Farnsworth Res Corp	Frequency control system
US2444651A (en) *	1944-11-30	1948-07-06	Rca Corp	Shaping circuit for cathode beam tubes
US2541067A (en) *	1944-11-30	1951-02-13	Sperry Corp	Frequency responsive device
US2477570A (en) *	1945-01-05	1949-08-02	Russell A Berg	Radio relay system
US2495023A (en) *	1945-05-03	1950-01-17	Paul B Sebring	Discriminator circuit
NL70931C (US08124317-20120228-C00034.png) *	1945-06-14
DE977658C (de) *	1945-09-07	1968-01-25	Rca Corp	Detektor fuer phasenwinkelmodulierte Traegerfrequenzspannungen
US2648979A (en) *	1946-08-09	1953-08-18	Seismograph Service Corp	Transducer testing apparatus
US2655036A (en) *	1947-10-01	1953-10-13	Gen Motors Corp	Frequency modulated torsional vibration analyzer
US2620439A (en) *	1947-11-05	1952-12-02	Gen Electric	Noise balancing circuits
US2543256A (en) *	1948-05-20	1951-02-27	Rca Corp	Diversity receiver for multiplex frequency shift tones
NL144559B (nl) *	1949-01-27		Pechiney Saint Gobain	Werkwijze ter bereiding van agglomeraten van actief aluminiumoxyde, alsmede gevormde agglomeraten van actief aluminiumoxyde verkregen volgens deze werkwijze.
NL95329C (US08124317-20120228-C00034.png) *	1949-05-13
US2613271A (en) *	1950-04-07	1952-10-07	Rca Corp	Tuning indicator for frequency shift telegraphy
US2688726A (en) *	1951-01-11	1954-09-07	Northrop Aircraft Inc	Phase-amplitude-frequency measuring system
US2692947A (en) *	1951-05-11	1954-10-26	Sperry Corp	Locator of inflection points of a response curve
DE921389C (de) *	1951-12-06	1954-12-16	Sueddeutsche Telefon App	Umschaltbarer UEberlagerungsempfaenger fuer AM/FM-UEbertragungen
DE949242C (de) *	1952-03-16	1956-09-13	Blaupunkt Werke G M B H Zweign	UEberlagerungsempfaenger fuer frequenzmodulierte Schwingungen mit automatischer Scharfeinstellung
US2835803A (en) *	1953-10-12	1958-05-20	Esther Marion Armstrong	Linear detector for subcarrier frequency modulated waves
BE532476A (US08124317-20120228-C00034.png) *	1953-10-12
BE543501A (US08124317-20120228-C00034.png) *	1953-10-21
US2880315A (en) *	1954-10-05	1959-03-31	Gen Electric	Angular modulation detector
DE976553C (de) *	1954-10-28	1963-11-14	Telefunken Patent	Empfaenger fuer Telegrafie-Nachrichten mit Frequenzumtastung
US3015776A (en) *	1957-02-09	1962-01-02	Sud Atlas Werke G M B H	Indicating fluctuations in frequency and amplitude
US9063067B1 (en)	2010-11-17	2015-06-23	Alvin P. Schmitt	Moisture sensing devices
US8879919B2 (en)	2011-09-09	2014-11-04	Harris Corporation	Photonic communications device with an FM/PM discriminator and related methods
US8526817B2 (en)	2012-01-24	2013-09-03	Harris Corporation	Communications device with discriminator for generating intermediate frequency signal and related methods
US8620158B2 (en)	2012-01-24	2013-12-31	Harris Corporation	Communications device with discriminator and wavelength division multiplexing for generating intermediate frequency signal and related methods

0
- NL NL79628D patent/NL79628B/xx unknown
1935
- 1935-10-17 US US45413A patent/US2121103A/en not_active Expired - Lifetime
1936
- 1936-10-16 DE DER97596D patent/DE685380C/de not_active Expired
- 1936-10-16 NL NL52037D patent/NL52037C/xx active
- 1936-10-19 GB GB28373/36A patent/GB489094A/en not_active Expired
1937
- 1937-04-03 DE DER99029A patent/DE706234C/de not_active Expired
1938
- 1938-01-14 US US184926A patent/US2233751A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
NL52037C (US08124317-20120228-C00034.png)	1942-03-16
US2121103A (en)	1938-06-21
US2233751A (en)	1941-03-04
GB489094A (en)	1938-07-19
DE706234C (de)	1941-05-21
DE685380C (de)	1939-12-16

Publication	Publication Date	Title
BE402725A (US08124317-20120228-C00034.png)
FR778582A (US08124317-20120228-C00034.png)	1935-03-15
FR782880A (US08124317-20120228-C00034.png)	1935-07-03
BE408090A (US08124317-20120228-C00034.png)	1935-03-30
BE408744A (US08124317-20120228-C00034.png)
BE405881A (US08124317-20120228-C00034.png)
BE407131A (US08124317-20120228-C00034.png)
BE407302A (US08124317-20120228-C00034.png)	1935-02-28
BE407388A (US08124317-20120228-C00034.png)
BE407411A (US08124317-20120228-C00034.png)
BE407478A (US08124317-20120228-C00034.png)
BE407487A (US08124317-20120228-C00034.png)
BE407491A (US08124317-20120228-C00034.png)	1936-11-30
BE407519A (US08124317-20120228-C00034.png)	1935-02-28
BE407622A (US08124317-20120228-C00034.png)	1936-02-28
BE407630A (US08124317-20120228-C00034.png)
BE407652A (US08124317-20120228-C00034.png)
BE407653A (US08124317-20120228-C00034.png)
BE407703A (US08124317-20120228-C00034.png)
BE407774A (US08124317-20120228-C00034.png)
BE407804A (US08124317-20120228-C00034.png)	1935-03-30
BE407883A (US08124317-20120228-C00034.png)	1935-03-30
BE408024A (US08124317-20120228-C00034.png)
BE408083A (US08124317-20120228-C00034.png)
BE408442A (US08124317-20120228-C00034.png)