NL79628B - - Google Patents

Info

Publication number
NL79628B
NL79628B NL79628DA NL79628B NL 79628 B NL79628 B NL 79628B NL 79628D A NL79628D A NL 79628DA NL 79628 B NL79628 B NL 79628B
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.)
Publication of NL79628B publication Critical patent/NL79628B/xx

Links

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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (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 (es)

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 (es)

Family

ID=21937734

Family Applications (2)

Application Number Title Priority Date Filing Date
NL79628D NL79628B (es) 1935-10-17
NL52037D NL52037C (es) 1935-10-17 1936-10-16

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL52037D NL52037C (es) 1935-10-17 1936-10-16

Country Status (4)

Country Link
US (2) US2121103A (es)
DE (2) DE685380C (es)
GB (1) GB489094A (es)
NL (2) NL52037C (es)

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
BE475237A (es) * 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 (es) * 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
BE532476A (es) * 1953-10-12
US2835803A (en) * 1953-10-12 1958-05-20 Esther Marion Armstrong Linear detector for subcarrier frequency modulated waves
BE532653A (es) * 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

Also Published As

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

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