Patents
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)
03/1979
03/13/1979US4144534 Battlefield IFF system
03/06/1979US4143376 Method for sampling tacan signal envelope
03/06/1979US4143373 Adaptive radar systems and methods therefor
03/06/1979US4143372 Side-lobe blanking arrangement for a radar system
03/06/1979US4143371 Arrangement for discriminating clutter signals from target signals in a radar system
03/06/1979US4143370 Vehicle collision anticipating method and device
02/1979
02/27/1979US4142189 Radar system
02/27/1979US4142187 Dual frequency alarm device using Doppler effect for sensing a moving object
02/13/1979US4139851 Two level threshold circuit
02/13/1979US4139850 Arrangement for detecting the presence of radar echos in a pulsed radar system
02/13/1979US4139848 Aircraft proximity warning indicator
02/13/1979US4139847 Automatic ground-clutter rejection in weather pulse radar system
02/06/1979US4138677 Acceleration filter for slowdown discrimination
02/06/1979US4138676 Method and device for increasing the security against transmission errors in an information transmission system
01/1979
01/30/1979US4137533 Angle/vector processed, phase-accumulated single vector rotation, variable order adaptive MTI processor
01/30/1979US4137532 VIP doppler filter bank signal processor for pulse doppler radar
01/30/1979CA1047633A2 Adaptive proximity indicating system
01/30/1979CA1047632A2 Adaptive proximity indicating system
01/30/1979CA1047631A2 Passive aircraft proximity indicating system which adapts mode of operation to side lobe suppression signal strength
01/30/1979CA1047630A2 Passive aircraft proximity indicating system responsive to altitude
01/30/1979CA1047629A2 Adaptive proximity indicating system
01/23/1979US4136394 Golf yardage indicator system
01/23/1979US4136343 Multiple source tracking system
01/23/1979US4136341 Radar system employing two kinds of pulses
01/23/1979US4136340 Sequential probability ratio test for friend identification system
01/16/1979US4135188 Method and apparatus for orally announcing vehicle speed
01/16/1979US4135187 Transponder decoder/encoder circuitry
01/16/1979US4135143 Aircraft altitude annunciator
01/09/1979US4134113 Monopulse motion compensation for a synthetic aperture radar
01/02/1979US4132991 Method and apparatus utilizing time-expanded pulse sequences for distance measurement in a radar
01/02/1979US4132990 Amti target/clutter discriminator
01/02/1979US4132989 Azimuth correlator for real-time synthetic aperture radar image processing
01/02/1979US4132988 Radar intrusion detection system
12/1978
12/26/1978US4131889 Miniature doppler radar systems and microwave receivers suitable therefor
12/19/1978US4130821 Frequency-agile fire control radar system
12/19/1978US4130811 Modulation system
12/12/1978US4129869 Automatical signalling apparatus
12/12/1978US4129868 Radar beacon apparatus
12/12/1978US4129867 Multi-pulse modulator for radar transponder
12/12/1978US4129866 Method of scanning a radar antenna to effect improved radar operation
12/12/1978US4129856 Filter system and method for intrusion alarm
12/12/1978CA1044353A1 Intrusion detection system
12/05/1978US4128839 Means for accumulating aircraft position data for a beacon based collision avoidance system and other purposes
12/05/1978US4128837 Prediction computation for weapon control
12/05/1978US4128835 Method and apparatus for measuring distance between an aircraft and a ground station
12/05/1978US4128834 Range mark generation
11/1978
11/28/1978CA1043451A1 Weather radar transistorized pulse modulator
11/21/1978US4126861 Pulse doppler ranging system (U)
11/21/1978US4126860 Wire detector
11/21/1978US4126859 Ground station for a round-trip-path distance-measuring system
11/21/1978CA1043005A1 Aircraft ground proximity warning instrument
11/14/1978US4125835 Range or time-delay determining subsystem for use in certain radar-like systems
11/14/1978US4125804 Mobile radar method for sensing inclusions in subsoil
11/07/1978US4124850 Video processor for distance measuring equipment
11/07/1978US4124849 Positioning system
10/1978
10/31/1978US4123755 Radar interference reduction
10/31/1978US4123754 Electronic detection and identification system
10/31/1978US4123719 Chirp phase distortion detector in a wideband linearization feedback control loop
10/31/1978US4123142 Ambiguity plane optical processor incorporating magneto-optic, bubble domain histograph
10/31/1978CA1041639A1 Distance measuring using a chirped fm/pulse compression interrogator responder system
10/31/1978CA1041638A1 Vehicle identification system
10/31/1978CA1041637A1 Road vehicle radar system
10/31/1978CA1041636A1 Time interval phase detection in distance measuring apparatus
10/24/1978US4122449 Device for measuring a vehicle speed by utilizing the doppler effect
10/24/1978CA1041199A1 Homodyne communication system
10/17/1978US4121287 Alarm filtering in a ground proximity warning system
10/17/1978US4121213 Radar altimeter simulator
10/17/1978US4121212 Double sideband pulse radar
10/17/1978US4121211 Method and apparatus for determining a signal of uniform period
10/17/1978US4121210 Two dimensional MIPS
10/17/1978US4121209 Two-axis motion compensation for AMTI
10/17/1978US4121208 Device for increasing the safety with respect to transmission faults in an information transmission system
10/17/1978US4121102 Object identification system
10/17/1978CA1040730A1 Automatic t0 control for use in airborne dme system
10/10/1978US4119962 Multiple memory adaptive MTI
10/10/1978CA1040292A2 Electronic identification system
10/03/1978US4118703 Pulse radar apparatus
10/03/1978US4118702 Doppler distance measuring system
10/03/1978US4118701 FM/CW radar system
10/03/1978US4117563 Thread chaser tool for contiguous straight and tapered thread runs
09/1978
09/26/1978US4117538 Radar system with specialized weighting
09/26/1978US4117487 Electronically scanned echo pulse receiver
09/26/1978US4117483 Noise-immune signal processing circuit for pulsed radars
09/26/1978US4117482 Method and apparatus for locating position in a waterway
09/26/1978US4117481 Sidelooking radar and system for identifying objects
09/26/1978US4117464 Microwave motion-detection apparatus employing a gunn oscillator in a self-detecting mode
09/19/1978US4115774 CW radar AM-noise video-cancellation system
09/19/1978US4115772 Pseudo-noise radar system
09/19/1978US4115771 Passive ATCRBS using signals of remote SSR
09/12/1978US4114153 Echo location systems
09/12/1978US4114152 Pulse radar apparatus with integration device
09/12/1978US4114151 Passive transponder apparatus for use in an interrogator-responder system
09/12/1978US4114135 Acoustic device
09/12/1978CA1038480A1 Secure encoder for trilateralization locator
09/05/1978US4112496 Capacitor matrix correlator for use in the correlation of periodic signals
09/05/1978US4111552 Apparatus and method for measuring distance from and speed components of an object traveling vertical to a reference line
09/05/1978CA1038066A1 Alarm filtering in a ground proximity warning system
09/05/1978CA1038039A1 Apparatus for locating non-linear junctions between metallic materials and/or semiconductive materials
08/1978
08/29/1978US4110756 Capture protection for pulse signal tracking system
08/29/1978US4110755 Pulse radar device with phase- or frequency-modulation