US2465341A
(en)
*
|
1941-02-08 |
1949-03-29 |
Int Standard Electric Corp |
Electric wave transmission system
|
DE878971C
(de)
*
|
1941-08-16 |
1953-04-23 |
Philips Nv |
UEberlagerungsempfaenger mit selbsttaetiger Frequenzregelung
|
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
|
US2470843A
(en)
*
|
1944-10-04 |
1949-05-24 |
Philco Corp |
Stop-on carrier tuner
|
US2486551A
(en)
*
|
1944-10-04 |
1949-11-01 |
Philco Corp |
Automatic tuning electric system
|
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
(fr)
*
|
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
(fr)
*
|
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
|
US2714663A
(en)
*
|
1950-05-29 |
1955-08-02 |
Rca Corp |
Stabilization of microwave oscillations
|
US2714662A
(en)
*
|
1950-05-29 |
1955-08-02 |
Rca Corp |
Frequency 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
|
NL169676B
(nl)
*
|
1952-05-17 |
|
Philip Morris Inc |
Werkwijze voor het doen zwellen van tabak.
|
NL89589C
(fr)
*
|
1952-05-17 |
|
|
|
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
|
NL92231C
(fr)
*
|
1952-11-17 |
|
|
|
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
(fr)
*
|
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
|