BE442115A - - Google Patents

Info

Publication number
BE442115A
BE442115A BE442115DA BE442115A BE 442115 A BE442115 A BE 442115A BE 442115D A BE442115D A BE 442115DA BE 442115 A BE442115 A BE 442115A
Authority
BE
Belgium
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 BE442115A publication Critical patent/BE442115A/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
    • H03J7/047—Automatic frequency control using an auxiliary signal, e.g. low frequency scanning of the locking range or superimposing a special signal on the input signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/22—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element in which an automatic frequency control circuit is brought into action after the scanning action has been stopped
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/30—Automatic scanning over a band of frequencies where the scanning is accomplished by mechanical means, e.g. by a motor
BE442115D 1940-02-29 BE442115A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US321377A US2287925A (en) 1940-02-29 1940-02-29 Radio receiver

Publications (1)

Publication Number Publication Date
BE442115A true BE442115A (xx)

Family

ID=23250364

Family Applications (1)

Application Number Title Priority Date Filing Date
BE442115D BE442115A (xx) 1940-02-29

Country Status (5)

Country Link
US (1) US2287925A (xx)
BE (1) BE442115A (xx)
FR (1) FR882606A (xx)
GB (1) GB549769A (xx)
NL (1) NL63645C (xx)

Families Citing this family (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2465341A (en) * 1941-02-08 1949-03-29 Int Standard Electric Corp Electric wave transmission system
BE446845A (xx) * 1941-08-16
FR884674A (fr) * 1941-09-23 1943-08-24 Materiel Telephonique Appareils récepteurs radioélectriques
US2459846A (en) * 1942-04-09 1949-01-25 Int Standard Electric Corp Voltage control arrangement
US2462856A (en) * 1942-05-19 1949-03-01 Sperry Corp Transmitter and/or receiver circuits
US2474354A (en) * 1942-05-19 1949-06-28 Patelhold Patentverwertung Automatic frequency control circuits
US2453988A (en) * 1942-07-10 1948-11-16 Radio Patents Corp Automatic frequency control
US2442583A (en) * 1942-10-10 1948-06-01 Rca Corp Scanning receiving system
US2444151A (en) * 1942-11-16 1948-06-29 Rca Corp Scanning receiver for detecting signals of unknown frequency
US2422381A (en) * 1942-12-08 1947-06-17 Victor S Johnson Method of lining up unicontrolled tuned radio apparatus
US2452575A (en) * 1943-04-22 1948-11-02 Sperry Corp Automatic frequency control
US2434293A (en) * 1943-05-11 1948-01-13 Sperry Gyroscope Co Inc Frequency control of an oscillator of the velocity modulation type
US2514443A (en) * 1943-06-07 1950-07-11 Rca Corp Selectivity control system
US2502294A (en) * 1943-08-19 1950-03-28 Wallace Marcel Double sweep panoramic radio receiver
US2434294A (en) * 1943-10-22 1948-01-13 Sperry Gyroscope Co Inc Frequency control system
US2647994A (en) * 1943-12-04 1953-08-04 Us Navy Automatic frequency control in pulse transmission systems
US2572216A (en) * 1944-04-01 1951-10-23 Bell Telephone Labor Inc Signal receiving system
US2425013A (en) * 1944-04-07 1947-08-05 Sperry Gyroscope Co Inc Frequency control system
US2498932A (en) * 1944-08-18 1950-02-28 Panoramic Radio Corp High-frequency tuning circuit
US2486551A (en) * 1944-10-04 1949-11-01 Philco Corp Automatic tuning electric system
US2470843A (en) * 1944-10-04 1949-05-24 Philco Corp Stop-on carrier tuner
US2419984A (en) * 1944-10-19 1947-05-06 Philco Corp Wide-band superheterodyne receiver
US2427191A (en) * 1944-10-25 1947-09-09 Philco Corp Blanking control for radio beacon systems
US2469324A (en) * 1945-02-09 1949-05-03 Rca Corp Circuit tuner
US2499514A (en) * 1945-02-27 1950-03-07 Rca Corp Beat frequency sweep oscillator
US2455472A (en) * 1945-04-10 1948-12-07 Bell Telephone Labor Inc Method and system for electronically generating complex signals
US2686875A (en) * 1945-07-20 1954-08-17 Westinghouse Electric Corp Frequency control system
US2499584A (en) * 1945-10-15 1950-03-07 Belmont Radio Corp Signal-seeking tuner
US2702861A (en) * 1946-02-21 1955-02-22 Sidney A Wingate Wobbulator
US2588240A (en) * 1946-03-27 1952-03-04 Bell Telephone Labor Inc Pulsing circuit
US2700101A (en) * 1946-04-19 1955-01-18 Wallace Panoramic device
US2648063A (en) * 1946-08-01 1953-08-04 Us Navy Transceiver system
NL77668C (xx) * 1947-01-27
US2560312A (en) * 1947-10-03 1951-07-10 Philco Corp Tuning aid for radio receivers
US2660511A (en) * 1947-10-24 1953-11-24 Nielsen A C Co Lockout and recycling device for an apparatus for determining the listening habits of wave signal receiver users
US2507525A (en) * 1948-02-06 1950-05-16 Marcel Wallace Panoramic system
US2653243A (en) * 1948-08-17 1953-09-22 Westinghouse Electric Corp Automatic tuning of resonant circuits
US2601384A (en) * 1948-11-03 1952-06-24 Rca Corp Electronic signal seeking receiver
BE491024A (xx) * 1948-11-27
US2802943A (en) * 1949-07-16 1957-08-13 Rca Corp Automatic adjustment of frequency stabilization systems
US2553368A (en) * 1950-01-07 1951-05-15 Philco Corp Automatic frequency control for television receivers
US2692330A (en) * 1950-05-22 1954-10-19 Rca Corp Noise reduction arrangement
US2714662A (en) * 1950-05-29 1955-08-02 Rca Corp Frequency stabilization of microwave oscillations
US2714663A (en) * 1950-05-29 1955-08-02 Rca Corp Stabilization of microwave oscillations
US2729745A (en) * 1951-06-05 1956-01-03 Sperry Rand Corp Sweep arrangements for servo systems
US2757279A (en) * 1951-11-20 1956-07-31 Raytheon Mfg Co Two-way communication systems
NL89589C (xx) * 1952-05-17
NL169676B (nl) * 1952-05-17 Philip Morris Inc Werkwijze voor het doen zwellen van tabak.
US2838671A (en) * 1952-07-10 1958-06-10 Farnsworth Res Corp Automatic frequency control circuit
US2794910A (en) * 1952-08-19 1957-06-04 Philips Corp Automatic frequency stabilizing circuit
NL173887B (nl) * 1952-11-17 Becton Dickinson Co Inrichting voor het scheiden van de vloeibare fase van de cellulaire fase bij een bloedmonster.
US2903648A (en) * 1953-08-31 1959-09-08 Raymond W Bonner Electrical audio range sweep oscillator
US2891105A (en) * 1953-09-23 1959-06-16 Rca Corp Automatic frequency control apparatus
US2777064A (en) * 1953-12-11 1957-01-08 Harris A Robinson Frequency control system
US2882391A (en) * 1954-09-07 1959-04-14 Gen Motors Corp Electric radio tuner
US2901597A (en) * 1955-07-19 1959-08-25 Craig L Whitman Transmitter frequency control
US2833923A (en) * 1955-10-13 1958-05-06 Gen Electric Hunting a. f. c. system
US2837646A (en) * 1955-10-24 1958-06-03 Hughes Aircraft Co Coherent detector circuit
US2956239A (en) * 1956-09-22 1960-10-11 Philips Corp Phase lock system
US2923815A (en) * 1956-12-12 1960-02-02 Cgs Lab Inc Remote tuning of oscillator via duplex conductor
US2924783A (en) * 1956-12-27 1960-02-09 Itt Wide band automatic frequency control systems
US3076151A (en) * 1957-03-15 1963-01-29 Gen Electric Afc with search sweep control
US3000006A (en) * 1957-03-20 1961-09-12 Melpar Inc Mixed-base data transmission
US2930905A (en) * 1957-07-30 1960-03-29 Eugene S Mcvey Relaxation oscillator and integrator
US3156867A (en) * 1960-09-19 1964-11-10 James Scott And Company Electr Electric signal spectrum analysers including automatic frequency control
NL269766A (xx) * 1960-09-30
US3155919A (en) * 1961-01-03 1964-11-03 Collins Radio Co A. f. c. spectrum lock-in circuit
US3227963A (en) * 1962-03-19 1966-01-04 Beckman Instruments Inc Digital frequency synthesizer having a plurality of cascaded phase-locked digit selector stages
US3208005A (en) * 1963-03-26 1965-09-21 Guttman Julius Multichannel frequency synthesizer
US3218571A (en) * 1963-07-24 1965-11-16 Avco Corp Electronic servo controlled automatic frequency scanning system
US3383625A (en) * 1966-10-04 1968-05-14 Western Electric Co System for generating a smoothly and continuously varying signal having a variable frequency
US4307465A (en) * 1979-10-15 1981-12-22 Gte Laboratories Incorporated Digital communications receiver

Also Published As

Publication number Publication date
US2287925A (en) 1942-06-30
NL63645C (xx)
GB549769A (en) 1942-12-07
FR882606A (fr) 1943-06-09

Similar Documents

Publication Publication Date Title
AT166693B (xx)
BE440256A (xx)
BE437891A (xx)
BE438794A (xx)
BE439921A (xx)
BE437808A (xx)
NL63645C (xx)
BE440307A (xx)
BE440295A (xx)
BE440291A (xx)
SE103103C1 (xx)
BE440284A (xx)
BE439407A (xx)
BE440248A (xx)
BE440246A (xx)
BE440192A (xx)
BE440185A (xx)
BE440179A (xx)
BE440126A (xx)
BE440123A (xx)
BE439773A (xx)
BE440038A (xx)
BE439958A (xx)
BE439954A (xx)
BE439282A (xx)