US3162853A
(en)
*
|
1961-02-10 |
1964-12-22 |
Cossor Ltd A C |
Diversity radar installations
|
US2707330A
(en)
*
|
1940-03-09 |
1955-05-03 |
Muller Felix |
Method for the investigation and control of wave fields
|
US2493097A
(en)
*
|
1941-03-20 |
1950-01-03 |
Rca Corp |
Position finder
|
US2602160A
(en)
*
|
1942-09-12 |
1952-07-01 |
Wilkins Oscar Lee |
Recognition system
|
US2433283A
(en)
*
|
1942-11-02 |
1947-12-23 |
Rca Corp |
Radio position finding
|
US2551604A
(en)
*
|
1942-11-13 |
1951-05-08 |
Int Standard Electric Corp |
Radio position determining system
|
US2421028A
(en)
*
|
1942-11-24 |
1947-05-27 |
Bell Telephone Labor Inc |
Wave reflection aircraft detector using rotating polarization
|
BE455855A
(de)
*
|
1943-04-12 |
|
|
|
US2426440A
(en)
*
|
1943-07-19 |
1947-08-26 |
Gen Electric |
Aircraft landing system
|
US2490022A
(en)
*
|
1943-09-08 |
1949-12-06 |
Tung Sol Lamp Works Inc |
Secret signaling system
|
BE473180A
(de)
*
|
1943-10-26 |
|
|
|
US2444445A
(en)
*
|
1943-11-10 |
1948-07-06 |
Sperry Corp |
Radio navigation system
|
US2558758A
(en)
*
|
1944-01-22 |
1951-07-03 |
Sperry Corp |
Radio velocity indicator
|
BE477480A
(de)
*
|
1944-03-20 |
|
|
|
US2436376A
(en)
*
|
1944-03-31 |
1948-02-24 |
Bell Telephone Labor Inc |
System for transmitting intelligence
|
US2470787A
(en)
*
|
1944-05-04 |
1949-05-24 |
Paul W Nosker |
System for determining the position or path of an object in space
|
US2540076A
(en)
*
|
1944-09-28 |
1951-02-06 |
Oscar H Dicke |
Radio cycle summation measuring apparatus
|
US2572127A
(en)
*
|
1944-11-30 |
1951-10-23 |
Gen Railway Signal Co |
Airway traffic control system
|
US2516376A
(en)
*
|
1945-01-29 |
1950-07-25 |
Gen Railway Signal Co |
Airway traffic control system
|
US2527548A
(en)
*
|
1945-03-22 |
1950-10-31 |
Charles E Hastings |
Radio velocity and position determining system
|
US2478208A
(en)
*
|
1945-03-26 |
1949-08-09 |
Max I Rothman |
Wave measuring system
|
US2548836A
(en)
*
|
1945-07-09 |
1951-04-10 |
Jr Harvey R Worthington |
Electromagnetic field phase determining apparatus
|
GB620508A
(en)
*
|
1945-08-24 |
1949-03-25 |
William Joseph O Brien |
Improvements in or relating to multiple channel radio receivers
|
US2483557A
(en)
*
|
1945-08-27 |
1949-10-04 |
Decca Record Co Ltd |
Radio beacon system
|
NL71326C
(de)
*
|
1945-08-27 |
|
|
|
US2484824A
(en)
*
|
1945-09-12 |
1949-10-18 |
Paul G Hansel |
Radio direction finding method and apparatus
|
US2455996A
(en)
*
|
1945-12-15 |
1948-12-14 |
Rca Corp |
Frequency modulated radio testing system
|
GB626938A
(en)
*
|
1946-02-05 |
1949-07-25 |
Standard Telephones Cables Ltd |
Improvements in or relating to radio navigation systems
|
US2529510A
(en)
*
|
1946-03-01 |
1950-11-14 |
Theodore M Manley |
Radio system for measuring distance by phase comparison
|
US2803415A
(en)
*
|
1946-03-21 |
1957-08-20 |
Jr Edward F Macnichol |
Navigation control system
|
GB620493A
(en)
*
|
1946-05-17 |
1949-03-25 |
Decca Record Co Ltd |
Improvements in or relating to radio systems for enabling geographical positions to be determined and/or indicated at a receiver
|
GB621575A
(en)
*
|
1946-06-21 |
1949-04-12 |
Standard Telephones Cables Ltd |
Combined radio direction and distance finding system
|
US2582588A
(en)
*
|
1946-08-12 |
1952-01-15 |
Fennessy Edward |
Track control unit
|
US2604620A
(en)
*
|
1946-10-04 |
1952-07-22 |
Brunson S Mccutchen |
Radio navigation system
|
US2579591A
(en)
*
|
1947-04-19 |
1951-12-25 |
Westinghouse Electric Corp |
Relay system
|
US2533229A
(en)
*
|
1947-06-25 |
1950-12-12 |
Jr Edward N Dingley |
Omnidirectional radio beacon
|
US2537574A
(en)
*
|
1947-09-19 |
1951-01-09 |
Rca Corp |
Distance finder with automatic range tracking
|
US2654884A
(en)
*
|
1947-10-21 |
1953-10-06 |
Sperry Corp |
Radio distance measuring system
|
US3025519A
(en)
*
|
1948-11-03 |
1962-03-13 |
Carl W Brown |
Automatic radio navigation system
|
US2718002A
(en)
*
|
1949-02-02 |
1955-09-13 |
Int Standard Electric Corp |
Long range navigation system
|
US2604622A
(en)
*
|
1949-03-30 |
1952-07-22 |
Olive S Petty |
Test device for determining time delay in pulse repeaters
|
US2811717A
(en)
*
|
1949-05-12 |
1957-10-29 |
Sperry Rand Corp |
Automatic phase comparator apparatus
|
US2592719A
(en)
*
|
1949-11-19 |
1952-04-15 |
Raytheon Mfg Co |
Remote direction finder system
|
US2690558A
(en)
*
|
1950-02-04 |
1954-09-28 |
Sylvania Electric Prod |
Radio navigation system
|
US2748385A
(en)
*
|
1950-03-15 |
1956-05-29 |
Marconi Wireless Telegraph Co |
Radio navigation aids for aircraft
|
US2724114A
(en)
*
|
1950-10-16 |
1955-11-15 |
Shell Dev |
Phase-comparison radiolocation system
|
US2709253A
(en)
*
|
1952-01-05 |
1955-05-24 |
Hastings Instr Co Inc |
Radio ranging system
|
US2710959A
(en)
*
|
1952-06-07 |
1955-06-14 |
Collins Radio Co |
Ultra short range altimeter system
|
US2839749A
(en)
*
|
1952-07-08 |
1958-06-17 |
Carleton Henry |
Precision electronic navigation system
|
BE522524A
(de)
*
|
1952-09-02 |
|
|
|
US2778013A
(en)
*
|
1953-04-10 |
1957-01-15 |
Seismograph Service Corp |
Radio surveying apparatus
|
US2837736A
(en)
*
|
1955-02-08 |
1958-06-03 |
Marcel J E Golay |
Radio interferometry
|
US3025520A
(en)
*
|
1955-11-21 |
1962-03-13 |
Gen Dynamics Corp |
Positioning determining device
|
US2945956A
(en)
*
|
1956-05-28 |
1960-07-19 |
Sperry Rand Corp |
Course plotter
|
US2910683A
(en)
*
|
1957-01-24 |
1959-10-27 |
Todd William |
Radio transmission system
|
US2971189A
(en)
*
|
1957-03-22 |
1961-02-07 |
Hastings Raydist Inc |
Radio system
|
GB845493A
(en)
*
|
1957-09-14 |
1960-08-24 |
Gasaccumulator Svenska Ab |
Improvements in combined receiving and transmitting apparatus for receiving and transmitting electro-magnetic signals
|
US3144645A
(en)
*
|
1958-05-12 |
1964-08-11 |
Bendix Corp |
Distance measuring system
|
US3082419A
(en)
*
|
1959-11-04 |
1963-03-19 |
Seismograph Service Corp |
Continuous wave hyperbolic system for landing aircraft
|
US3150366A
(en)
*
|
1960-05-12 |
1964-09-22 |
Bendix Corp |
Distance measuring system
|
NL295277A
(de)
*
|
1962-08-15 |
|
|
|
US3366957A
(en)
*
|
1965-08-31 |
1968-01-30 |
Rosemount Eng Co Ltd |
Distance measurement method and means
|
US7307595B2
(en)
*
|
2004-12-21 |
2007-12-11 |
Q-Track Corporation |
Near field location system and method
|
US7298314B2
(en)
*
|
2002-08-19 |
2007-11-20 |
Q-Track Corporation |
Near field electromagnetic positioning system and method
|
US7414571B2
(en)
*
|
2002-08-19 |
2008-08-19 |
Q-Track Corporation |
Low frequency asset tag tracking system and method
|
US6963301B2
(en)
*
|
2002-08-19 |
2005-11-08 |
G-Track Corporation |
System and method for near-field electromagnetic ranging
|
DE102006059623B3
(de)
*
|
2006-12-14 |
2008-07-24 |
Universität Rostock |
Verfahren und System zur Positionsbestimmung
|
US8774837B2
(en)
|
2011-04-30 |
2014-07-08 |
John Anthony Wright |
Methods, systems and apparatuses of emergency vehicle locating and the disruption thereof
|
US10444336B2
(en)
*
|
2017-07-06 |
2019-10-15 |
Bose Corporation |
Determining location/orientation of an audio device
|