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| Number | Title | Issue Date |
| 7423578 | Split aperture array for increased short range target coverage A phased array radar system comprising a plurality of radiating elements configured in a common array aperture for detecting and tracking targets; and a transmit and receive arrangement responsive to a first control signal for configuring the plurality of radiating ... | 09/09/2008 |
| 7423587 | Method for frequency-driven generation of a multiresolution decomposition of the input to wave-based sensing arrays A method for generating a multiresolution decomposition of an array signal by a bank of spatial bandpass filters is disclosed. The signal processing operation is implemented through the use of the directivities of the individual array elements and does not degrade t... | 09/09/2008 |
| 7382311 | Method, computer program product and system for differentiating physical sources from second order nonlinear signal effects A system for differentiating between a signal from a physical source and a nonlinear signal effect includes an array, a delay control element and a signal processing element. The array is configured to detect a signal at a particular location using an initial time d... | 06/03/2008 |
| 7379707 | System for concurrent mobile two-way data communications and TV reception A low profile mobile in-motion antenna and transmit/receive terminal system for two-way “VSAT” type satellite communication using FSS service, preferably in Ku band, supporting at the same time TV signal reception from the same satellite or a separate DBS satell... | 05/27/2008 |
| 7342535 | Beam-forming apparatus and method using a spatial interpolation based on regular spatial sampling A beam-forming apparatus and method for improving system performance using a spatial interpolation and at least one Angle of Arrival (AoA) in a system based on regular spatial sampling is provided. The AoA is estimated using a carrier-to-interference ratio. Beam-for... | 03/11/2008 |
| 7333055 | System and method for microwave imaging using an interleaved pattern in a programmable reflector array An antenna array for use within a microwave imaging system includes a plurality of reflecting antenna elements, each capable of being programmed with respective phase-shifts in a first pattern to direct a first beam of microwave radiation towards a first target, and... | 02/19/2008 |
| 7327304 | System and method for minimizing background noise in a microwave image using a programmable reflector array A microwave imaging system captures a microwave image of a target and minimizes noise in the microwave image using phase differentiation. A reflector antenna array is provided including a plurality of antenna elements for reflecting microwave radiation towards the t... | 02/05/2008 |
| 7324043 | Phase shifters deposited en masse for an electronically scanned antenna A system and method for an electronically scanned antenna is provided in which phase shifters are deposited en masse along with other electronically scanned antenna components on a wafer scale substrate using a thin film process. Alternative wafer scale sizes may be... | 01/29/2008 |
| 7315276 | Beam compression radar A concept is described for broadening the beam of a phased array radar antenna to provide continuous illumination of all radar targets within the search space, and this beam is compressed upon reception to realize the angular resolution that is possible with the ant... | 01/01/2008 |
| 7283085 | System and method for efficient, high-resolution microwave imaging using complementary transmit and receive beam patterns A scanning panel for use in a microwave imaging system captures a microwave image of a target using two complementary arrays of antenna elements. Each of the antenna elements in a first array is capable of being programmed with a respective phase delay to direct a t... | 10/16/2007 |
| 7270182 | Earth loop installed with sonic apparatus A method for installing a heat exchange pipe loop in a borehole, the method, in at least certain aspects, including drilling a borehole with a sonic drill system having a head and casing connected thereto, a drill apparatus on a lower end of the casing movable by th... | 09/18/2007 |
| 7262729 | Radio detection and ranging intrusion detection system A radar system having a processor, a waveform generator, a plurality of antenna interfaces, a set of first antennas configured to transmit a waveform, and a set of second antennas configured to receive a reflected waveform is disclosed. The waveform generator and an... | 08/28/2007 |
| 7245359 | Vehicular radar system A radar system of a vehicle has a zero-cross comparator, an integrator, and a sensor. The comparator compares a light reception signal output from each one of photoreceptive elements with a predetermined standard signal and outputs a comparison signal indicating two... | 07/17/2007 |
| 7242461 | Vehicular radar system An integrator of a vehicular radar system has multiple switches and multiple capacitors, which are connected with the switches, for each one of photoreceptive elements. The integrator integrates light reception signals, which are output from the photoreceptive eleme... | 07/10/2007 |
| 7239265 | Method for evaluating and controlling a radar installation A method is disclosed for evaluating the terrain surrounding a radar site. The method comprises to calculate the radar horizon around a radar site from stored terrain elevation information. The information obtained can be used for controlling the scanning profile of... | 07/03/2007 |
| 7221307 | Determination of the presence of closely spaced targets An active or passive sensor observes a region, and generates evidence of the type of target or object viewed. The evidence is processed to determine the prior probability that the object is of a particular type. The prior probability so determined is thresholded to ... | 05/22/2007 |
| 7221310 | Electric wave axis adjusting apparatus for radar mounted on vehicle The present invention provides an electric wave axis adjusting apparatus for an on-vehicle radar capable of readily and precisely adjusting an electric wave axis only by making the scanning range and a detection range identical to each other and changing a scanning ... | 05/22/2007 |
| 7202810 | Radar apparatus and radar signal processing method A radar apparatus and a radar signal processing method can prevent misdetection even in the case of targets running side by side without an azimuth angle error being varied in accordance with the velocities of the targets. An antenna direction control part controls ... | 04/10/2007 |
| 7165009 | Apparatus, method and articles of manufacture for velocity and bearing determination of an object A sensor front end is disclosed that is able to discriminate objects based on their range from the sensor and to derive bearing information therefrom. The sensor system includes a signal source for transmitting at least a first and a second sensor signal toward the ... | 01/16/2007 |
| 7151476 | Radar system having a beamless emission signature A radar system having a beamless emission signature is described. In one implementation, the radar system includes a transmission system and a receiver system. The transmission system is configured to transmit a pattern comprising a plurality of radar signals having... | 12/19/2006 |
| 7136012 | Approach radar with array antenna having rows and columns skewed relative to the horizontal A monopulse precision landing or other land-based radar system uses an array antenna and a beamformer to produce sum, azimuth difference and elevation difference beams relative to the array. The rows and columns of the array are skewed relative to the horizontal for... | 11/14/2006 |
| 7132975 | Apparatus and method for detecting moving objects An ultra wideband radar system for detecting moving objects comprising an antenna, which may be scanned in at least one dimension, and a signal processor wherein the signal processor includes a scan combiner that combines scan information in accordance with a candid... | 11/07/2006 |
| 7088286 | Apparatus for detecting direction of target using difference in phase of radio wave signals received through plural channels An apparatus for detecting a direction of a target is provided. The apparatus transmits and receives radio waves through a plurality of transmission/reception channels causing a phase difference in signals to be received through the transmission/reception channels a... | 08/08/2006 |
| 7081847 | Radar system with switchable angular resolution A radar system with a radar sensor (10) which comprises a transmitting module (20), a receiving module (22) and a supply network (64), wherein the transmitting module (20) comprises a first plurality of partial antennas (26, 28,... | 07/25/2006 |
| 7071867 | Method, apparatus, and computer program product for radar detection of moving target Methods, apparatus, and computer program products are provided for tracking at least one moving target with a radar device without requiring the use of Doppler information. The invention comprises scanning an area with radar signals at a first time to receive a firs... | 07/04/2006 |
| 7064713 | Multiple element patch antenna and electrical feed network A feed network for coupling elements of a multi-element patch antenna to transmit or receive circuitry may include segments having dimensions that maximize the impedance of the feed network. Increasing the feed network impedance can simplify matching of the feed net... | 06/20/2006 |
| 7053849 | Switchable polarizer A switchable polarizer assembly, having a coupler, a polarizer module with a plurality of apertures, each aperture adapted for a desired transition, an antenna adapter and a central waveguide with a center longitudinal axis passing through the coupler and the antenn... | 05/30/2006 |
| 7053814 | RF lightwave coding system for radar pulse compression An apparatus for preparing a RF radar transmit waveform and for decoding RF return waveforms comprising: a RF-lightwave encoder and a decoding preprocessor to phase-encode the RF radar transmit waveform and partially decode the return signal, the encoder including s... | 05/30/2006 |
| 7038615 | Efficient technique for estimating elevation angle when using a broad beam for search in a radar A method and apparatus for estimating elevation angle when using a broad search beam such as a cosecant-squared beam is provided. The range of a target detected during a search with a broad beam covering a broad angular search area is determined. Based on the determ... | 05/02/2006 |
| 7031333 | Reduced pin count media independent interface A system and method are disclosed for providing a method of communicating between a media access control (MAC) layer and a physical (PHY) layer. The method includes sending a 100 MHz time-division multiplexed signal on a receive data line and sending a time-division... | 04/18/2006 |
| 7026978 | Object detector and object detecting method A plurality of primary detection regions A to I are scanned by switching a beam width and a beam direction of an antenna. The primary detection regions A to I are formed such that one detection region overlaps at least one of other detection regions. A small region ... | 04/11/2006 |
| 7009562 | Single ku-band multi-polarization gallium arsenide transmit chip The present invention is a wide band GaAs microwave monolithic integrated circuit (MMIC) transmit chip that is capable of transmitting linearly or circularly polarized signals when connected to a pair of orthogonal cross-polarized antennas. In an active phased-array... | 03/07/2006 |
| 6975267 | Low profile active electronically scanned antenna (AESA) for Ka-band radar systems A vertically integrated Ka-band active electronically scanned antenna including, among other things, a transitioning RF waveguide relocator panel located behind a radiator faceplate and an array of beam control tiles respectively coupled to one of a plurality of tra... | 12/13/2005 |
| 6975263 | Device for position determination by means of radio waves A device for determining the position of a vehicle on a roadway by using radio waves which are emitted from the device and reflected by the vehicle and received by at least two array antennas (1, 2) arranged across the roadway, wherein the array antennas (... | 12/13/2005 |
| 6972713 | Method, apparatus, and computer program product for radar crossrange superresolution Methods, apparatus, and computer program products are provided for improving the crossrange resolution of a radar device for more accurate determinations of angular position of a target. The radar device transmits and receives scanning signals at crossrange beam pos... | 12/06/2005 |
| 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 |
| 6937183 | Object detecting method and object detector Beams are irradiated in three directions by switching an irradiation direction of a mainlobe of an antenna by stages, and an echo is received from a detection object obtained in the mainlobe or a sidelobe in each irradiation direction. Then, reflection power intensi... | 08/30/2005 |
| 6911948 | Antenna steering scheduler for mobile station in wireless local area network Methods of scheduling optimization of communications used with Wireless Local Area Network (WLAN) equipment that employs steerable directional antennas. The methods may use and are compatible with Media Access Control (MAC) layers of IEEE 802.11 group of standards. ... | 06/28/2005 |
| 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 |
| 6907269 | Mobile communication base station equipment A mobile communication base station determines the oncoming direction of a radio wave with a simple arrangement and transmits a narrow angle beam in this direction. Received signals from a pair of wide angle beam antennae 21-1 and 21-2 ha... | 06/14/2005 |
