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| Number | Title | Issue Date |
| 8138968 | Unattended ground sensor system and methods A High Performance Unattended Ground Sensor (HiPer-UGS) system and methods comprising low-power fully functional and independent radar-nodes that communicate directly with a remote radar information gathering or relay point using a long distance communications trans... | 03/20/2012 |
| 7903023 | Obstacle detection system notably for an anticollision system The present invention relates to system for detecting obstacles (13, 55, 56, 57) on the ground (15) onboard a carrier (1). The detection system comprises at least two continuous-wave radars (2, 3, 4). The radars (2, 3, 4) are linke... | 03/08/2011 |
| 7424405 | Method and arrangement for signal processing comprising first and second pulse compression filters The invention refers to a method and an arrangement for signal processing for a target detecting device (1) where a return signal (8) is divided into two parallel branches where a first compression filter (15) compresses the signal in the first ... | 09/09/2008 |
| 7414567 | ADS-B radar system A system and method of using a standard ADS-B transmitter and encoder to identify targets to provide a collision avoidance system, wherein the method includes the steps of providing a standard ADS-B transmitter and encoder, a phase modulator including a digital synt... | 08/19/2008 |
| 7304602 | Axial deviation determining method for on-vehicle radar An on-vehicle radar and a method of determining an axial deviation of the radar using stationary objects free of erroneous determination are disclosed. The amount of axial deviation of the radar is determined from the calculated stationary object line based on the d... | 12/04/2007 |
| 7295150 | Methods and systems for identifying high-quality phase angle measurements in an interferometric radar system A method for determining a mechanical angle to a radar target utilizing a multiple antenna radar altimeter is described. The method comprises receiving radar return signals at the multiple antennas, populating an ambiguity resolution matrix with the electrical phase... | 11/13/2007 |
| 7295158 | System and method for real time effects automation An effects automation system for generating control data for the control of effects devices, based on the relative position of a mobile target. The system uses stationary receivers and stationary transmitter tags coupled to the stationary receivers and a mobile tran... | 11/13/2007 |
| 7292179 | Instantaneous passive range finding A method and apparatus for use in determining the range in a single time sample from a platform to a target are disclosed. The method includes receiving radiation emanating from the target at two points on the platform in a common time sample; detecting the received... | 11/06/2007 |
| 7277046 | Single transmit multi-receiver modulation radar, multi-modulation receiver and method A single transmit multi-receiver modulation radar modulates radar return signals received through an associated receive-signal path with one of a plurality of differing modulation waveforms having low-cross correlation products. Each receive-signal path may be assoc... | 10/02/2007 |
| 7268723 | System and method for locating targets using measurements from a space based radar A system and method for determining a position of a target within an acceptable tolerance using an iterative approach. A airborne or space-based measuring device is used to measure an estimated position of the target. The information from the measuring device is use... | 09/11/2007 |
| 7230565 | Radar A radar can detect target azimuths located outside and adjacent to a scanning angular range of a beam by determining changes in received signal strength (a signal-strength profile) in the azimuthal direction as a function of a beam azimuth in a predetermined scannin... | 06/12/2007 |
| 7190306 | Method and system for detecting with radar the passage by a vehicle of a point for monitoring on a road The invention relates to a method for detecting the passage by a vehicle of a determined point for monitoring on a road, wherein from a remotely situated location a radar beam is transmitted continuously to the point for monitoring, reflections from the transmitted ... | 03/13/2007 |
| 7190305 | Radar apparatus In a radar apparatus, a receiving antenna includes a plurality of antenna elements, each receiving, as a reception signal, radio waves emitted into space and reflected off a target object. An analog signal is obtained by downconverting and putting a bandwidth constr... | 03/13/2007 |
| 7046190 | Process for phase-derived range measurements A method and apparatus for determining range of a radar target is provided. Signal samples based on returns of a target during tracking are processed to produce a wideband envelope range estimate for components of target motion. The components of target motion inclu... | 05/16/2006 |
| 6940447 | Radar device and method for operating a radar device A radar device having means for generating a carrier-frequency signal, means for shaping pulses, means for generating modulated radar pulses from the carrier-frequency signal, means for emitting modulated signals as radar pulses, means for receiving radar pulses and... | 09/06/2005 |
| 6924762 | Radar designed to acquire radar data with high accuracy A radar is provided which transmits a radar wave whose frequency is so modulated as to rise, fall, and be kept constant cyclically. The radar uses beat signals produced by the radar wave and radar echoes received by two antennas to produce radar data on a target. Wh... | 08/02/2005 |
| 6911934 | Apparatus, method and articles of manufacture for sequential lobing high resolution radar A sensor front end that is able to discriminate objects based on their range from the sensor and to derive bearing information therefrom. The sensor system may include a signal source for generating source signal; an antenna system for transmitting the source signal... | 06/28/2005 |
| 6819285 | Monopulse radar system for determining the height of a target An improved method of estimating target elevation angle for dual squinted beam radar systems is disclosed. The target's elevation angle is estimated by receiving complex I/Q data from two receive radar beams and calculating the complex ratio of the complex I/Q data.... | 11/16/2004 |
| 6812883 | In-vehicle radar system A radar system mounted in a reference vehicle can detect a distance and orientation of a preceding vehicle to thereby compute a relative position of a width center of the preceding vehicle. A curving radius of the reference vehicle is then detected for computing a r... | 11/02/2004 |
| 6801152 | Method for determining the optimum observer heading change in bearings-only passive emitter tracking Emitter target range and heading are estimated from bearing measurements enhancing bearings-only estimator convergence to a target track, and permitting optimization of an observer position relative to the target at the end of the total bearing measurement period. O... | 10/05/2004 |
| 6744397 | Systems and methods for target location A method of determining a target location from a vehicle is described. The method includes identifying the target utilizing a video system, determining an angular location vector to the target with respect to the vehicle, determining a position of the vehicle utiliz... | 06/01/2004 |
| 6678039 | Method and system to enhance dynamic range conversion useable with CMOS three-dimensional imaging High dynamic range brightness information is acquired by inputting detection current to a high (adjustable) gain resettable integrator whose output V(t) is compared to a Vth threshold by a comparator whose output is counted by a reset counter as V(t)ࣙVt... | 01/13/2004 |
| 6597307 | Method and radar for detecting distance to a target By changing the direction of a detection radio-wave beam within a detection-angle range and by detecting reflected-signal intensities, wherein each of the reflected-signal intensities is detected for each predetermined unit angle, moving averages of the r... | 07/22/2003 |
| 6590522 | Pulse radar device A pulse radar device, which includes a timing control unit that controls a transmit interval of a pulse signal, a transmitting unit that transmits the pulse signal, a receiving unit that receives a receive signal including a reflection signal component fr... | 07/08/2003 |
| 6577238 | RFID detection system A system 100 is disclosed for monitoring the position of one or more RFID tags 201. The system has a detector 301 incorporating circuitry 304 for detecting changes in the range of an RFID tag 201 from the detector and for triggering an alarm 401 if a dete... | 06/10/2003 |
| 6518916 | Object recognition apparatus This invention relates to an object recognition apparatus. This apparatus comprises an antenna which emits transmission beams toward a plurality of directions; a receiving circuit which receives reflected signals of the transmission beams from predetermin... | 02/11/2003 |
| 6504491 | Simultaneous multi-data stream transmission method and apparatus In a simultaneous multi-data stream transmission method and apparatus a first signal is transmitted at a fixed repetition rate from a first transceiver device (14). A second transceiver (33) then receives and demodulates the information embedded in the fi... | 01/07/2003 |
| 6480142 | Method and apparatus for measuring velocity and turbulence of atmospheric flows A method and apparatus for measuring the parameters of atmospheric turbulent flows utilizes the Doppler shifted frequencies of received radar signals backscattered from sound generated aerodynamically by atmospheric turbulent flows. Doppler frequency band... | 11/12/2002 |
| 6356230 | INTERROGATORS, WIRELESS COMMUNICATION SYSTEMS, METHODS OF OPERATING AN INTERROGATOR, METHODS OF MONITORING MOVEMENT OF A RADIO FREQUENCY IDENTIFICATION DEVICE, METHODS OF MONITORING MOVEMENT OF A REMOTE COMMUNICATION DEVICE AND MOVEMENT MONITORING METHODS Interrogators, wireless communication systems, methods of operating an interrogator, methods of monitoring movement of a radio frequency identification device, methods of monitoring movement of a remote communication device and movement monitoring methods... | 03/12/2002 |
| 6326915 | Radar device with multiplexed display functions for use in backing up a vehicle A radar device for use in backing up a vehicle is disclosed herein. A plurality of wave sensors is installed on a rear portion of a vehicle for detecting an obstacle therebehind. A master controller has a plurality of transceiver circuits and a microproce... | 12/04/2001 |
| 6246357 | Radar apparatus A radar apparatus is provided with signal converting means for FFT-transforming an output signal of reception means for detecting a reception electromagnetic wave; amplitude peak value detecting means for detecting a peak value of an amplitude level from ... | 06/12/2001 |
| 6229597 | Object detecting device An area is divided by a plurality of parallel lines parallel to a vehicle body axis CL of a vehicle V, into fifteen detection areas K1 to K15 each having a width of 1.6 m, and each of the detection areas K1 to K15 is divided by a distance address at a dis... | 05/08/2001 |
| 6201496 | Target angle estimator for search radars A search radar including the improvement of apparatus for enhancing the estimation of the target angle within a search scan of the radar is disclosed. More specifically, the improvement apparatus utilizes the generated scan angles and target amplitude mea... | 03/13/2001 |
| 6157339 | Radar for enabling accurate determination of false image of target A radar is provided, which enables determination of whether a detected target is a false image generated by a side lobe of the beam received by the antenna. In the radar, the first phase difference is obtained by actually calculating the target angle in t... | 12/05/2000 |
| 6130638 | Method and device for determining an azimuth angle and/or an elevation angle in a multibeam radar system Method and device for determining an azimuth angle and/or an elevation angle, based on a multibeam radar system, in which the echo signals of each radar target are recorded over at least two beams. The amplitude of an echo signal recorded in each receivin... | 10/10/2000 |
| 5966092 | Radar system, in particular motor vehicle radar system In a radar system, which is used particularly in motor vehicles, the angle at which a detected radar target is located are determined by providing that echo signals of the radar target are picked up via at least two reception channels, and their amplitude... | 10/12/1999 |
| 5729234 | Remote alignment system An arrangement for coordinating positional and angle information made on separate relatively moving platforms, such as aircraft, having independent coordinate systems, uses measurements of a common reference made on both platforms. The measurements are tr... | 03/17/1998 |
| 5696516 | Radar system and accurate method of range resolution In accordance with the teachings of the present invention, a radar system (20) and method of determining the range (R) to a remote target (14) is provided. The method includes computing a plurality of simulated M-dimensional points (xo (t)) as ... | 12/09/1997 |
| 5629704 | Target position detecting apparatus and method utilizing radar In a radar target position detecting apparatus, beams (, for example, light beams) irradiated from a transmitter(, for example, LED) have a predetermined divergence angle, a plurality of light (beam) receiving elements such as photodiode arrays each havin... | 05/13/1997 |
| 5504486 | Detection system A detection system will detect targets against a fixed background if the target is of a type emitting a gaseous plume. The detection system directs electromagnetic energy, preferably radio frequency signals, toward the fixed background in an area of suspe... | 04/02/1996 |
