| Patents for G01S 13 - Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified (37,701) |
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| 01/25/1977 | US4005420 CW radar system |
| 01/25/1977 | US4005419 Beacon side lobe detector |
| 01/25/1977 | US4005418 Cooperative signal processing beacon transponder |
| 01/25/1977 | US4005417 Frequency spectrum analyzer |
| 01/25/1977 | US4005415 Automated radar data processing system |
| 01/18/1977 | US4004212 Mine detector system |
| 01/11/1977 | US4003054 Method of compensating for imbalances in a quadrature demodulator |
| 01/11/1977 | US4003053 Target adaptive radar system |
| 01/11/1977 | US4003052 Digital prefilter for clutter attenuation in MTI radars |
| 01/11/1977 | US4003051 Expanded range gate moving target indicator |
| 01/11/1977 | US4003050 Full range correlator for use in a collision avoidance system |
| 01/11/1977 | US4003049 Dual mode automobile collision avoidance radar |
| 01/04/1977 | US4001825 Pulse radar apparatus |
| 01/04/1977 | US4001824 Dme timing apparatus and methods |
| 01/04/1977 | US4001823 Pulse radar method and system |
| 01/04/1977 | US4001822 Electronic license plate for motor vehicles |
| 12/28/1976 | US4000491 Iff testing |
| 12/28/1976 | US4000490 Traveling range gate tracking system |
| 12/21/1976 | US3998410 Apparatus and method for detecting a digital change in data |
| 12/14/1976 | US3997913 Electronic time compressor/expander utilizing magnetic storage |
| 12/14/1976 | US3997900 Four beam printed antenna for Doopler application |
| 12/14/1976 | US3997898 Channeling method and apparatus |
| 12/14/1976 | US3997897 Radar system with displaced primary and secondary radiation lobes |
| 12/07/1976 | US3996590 Method and apparatus for automatically detecting and tracking moving objects and similar applications |
| 12/07/1976 | US3996589 Monopulse radar system |
| 12/07/1976 | US3996588 System for automatic frequency control |
| 12/07/1976 | US3996587 Semipassive responder utilizing a low voltage, low power drain reflective varactor phase modulator |
| 12/07/1976 | US3996555 Identification of vehicles |
| 11/30/1976 | US3995272 Signal conditioning circuit |
| 11/30/1976 | US3995271 Adaptive clutter cancellation and interference rejection system for AMTI radar |
| 11/30/1976 | US3994229 Pulse doppler proximity fuze |
| 11/23/1976 | US3993995 Respiration monitor |
| 11/23/1976 | US3993994 Adaptive clutter cancellation for synthetic aperture AMTI radar |
| 11/16/1976 | US3992711 First and fourth harmonic system |
| 11/16/1976 | US3992710 Target tracker having target recognition means |
| 11/16/1976 | US3992709 Doppler radar |
| 11/16/1976 | US3992708 Optical tracking analog flywheel |
| 11/09/1976 | US3991417 MTI canceller utilizing fiber optic delay medium and frequency reiteration |
| 11/02/1976 | US3990076 Pseudo pulse doppler radar |
| 10/26/1976 | US3988732 3-Channel selectable polarization, target discrimination antenna |
| 10/26/1976 | US3988731 Augmented perspective radar display |
| 10/26/1976 | US3988679 Wideband receiving system including multi-channel filter for eliminating narrowband interference |
| 10/26/1976 | US3988056 Liquid-crystal display method and information-processing apparatus applying this method |
| 10/26/1976 | US3987988 Ground speed calculation for digital dme |
| 10/19/1976 | US3987443 Radar |
| 10/19/1976 | US3987442 Digital MTI radar system |
| 10/19/1976 | US3987441 Tracking gate servoed by relative range |
| 10/19/1976 | US3987440 Track while scan operation on scintillating point targets |
| 10/19/1976 | US3987402 Multi-channel gain controls |
| 10/12/1976 | US3986187 Automatic signal tracking circuit |
| 10/12/1976 | US3986182 Multi-zone intrusion detection system |
| 10/12/1976 | US3986167 Communication apparatus for communicating between a first and a second object |
| 10/05/1976 | US3984836 Relative distance indicating speedometer for a vehicle |
| 10/05/1976 | US3984835 Homodyne communication system |
| 10/05/1976 | US3984771 Accurate digital phase/frequency extractor |
| 09/28/1976 | US3983558 Moving target indicating (MTI) radar systems employing vehicle discriminator apparatus |
| 09/28/1976 | US3983557 Digital DME with compensation for ground station intermittencies |
| 09/28/1976 | US3983555 Radar receivers |
| 09/28/1976 | US3983474 Tracking and determining orientation of object using coordinate transformation means, system and process |
| 09/21/1976 | US3982243 Device for transmission of information from an information emitter to an information seeker |
| 09/21/1976 | US3981440 Digital signal detector |
| 09/14/1976 | US3981013 Non-jammable plural frequency radar system |
| 09/14/1976 | US3981012 Random frequency radar systems |
| 09/14/1976 | US3981011 Object identification system using an RF roll-call technique |
| 09/14/1976 | US3981010 Object locating system |
| 09/14/1976 | US3981009 Bernoulli-DeMoivre sliding window friend-accept decider |
| 09/14/1976 | US3981008 Navigational and collision avoidance apparatus |
| 09/07/1976 | US3979752 Pulse-type radar with modulated carrier frequency |
| 09/07/1976 | US3979749 Range readout apparatus |
| 09/07/1976 | US3979748 Pulse radar apparatus |
| 09/07/1976 | US3979678 Pulse radar apparatus |
| 08/31/1976 | US3978482 Dynamically focused thinned array |
| 08/31/1976 | US3978481 Anti-collision vehicular radar system |
| 08/24/1976 | US3977001 Friend-accept decider test simulator |
| 08/24/1976 | US3977000 Monopulse radar receiver |
| 08/24/1976 | US3976999 Airborne target recognition system |
| 08/24/1976 | US3976998 Synthetic aperture radars |
| 08/17/1976 | US3975734 Synthetic aperture radars including moving target indication |
| 08/17/1976 | US3975731 Airborne positioning system |
| 08/17/1976 | US3975730 Radar data selection equipment |
| 08/17/1976 | US3975729 Target detecting system |
| 08/10/1976 | US3974501 Dual-mode adaptive parameter processor for continuous wave radar ranging systems |
| 08/10/1976 | US3974500 Velocity sensing apparatus |
| 08/10/1976 | US3974365 Radio altimeter rate linearizer |
| 08/10/1976 | US3974328 Line scan area signature detection system |
| 08/03/1976 | US3973260 Dispersed pulse measurement for AGC and dynamic thresholding of a chirped radar receiver |
| 08/03/1976 | US3973259 Device for indicating changes in the position of an object |
| 08/03/1976 | US3973258 Transient event data acquisition apparatus for use with radar systems and the like |
| 08/03/1976 | US3973145 Weather radar transistorized pulse modulator |
| 08/03/1976 | US3972382 Hydraulic brake system with automatic brake means for vehicles |
| 07/27/1976 | US3972042 Metal target detection system |
| 07/27/1976 | US3972041 Adaptive clutter velocity cancellation system for pulsed digital MTI system |
| 07/27/1976 | US3971993 High capacity recirculating delay loop integrator |
| 07/27/1976 | US3971990 Base-band pulse object sensor system |
| 07/27/1976 | US3971923 Ramp function generator |
| 07/20/1976 | US3971025 Airport ground surveiliance system with aircraft taxi control feature |
| 07/20/1976 | US3971020 Three dimensional radar system with integrated PPI presentation |
| 07/20/1976 | US3971018 Marine traffic conflict assessment system |
| 07/13/1976 | US3969726 Two channel monopulse receiver |
| 07/13/1976 | US3969725 Distance measuring equipment |