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| Application No. | Application Title | Issue Date |
| 20110068980 | DIRECTION FINDING METHOD AND DEVICE The invention relates to a method for determining whether a target is within a direction sector of interest of a direction finder, which comprises: (a) predefining said sector of interest as a specific threshold difference between an R reference value and an N null valu... | 03/24/2011 |
| 20090207079 | Radar sensor for receiving radar wave while judging existence of wave attenuator A radar sensor receives a radar wave signal through a radome in each of antennas while judging existence of an attenuating thing in a detecting unit. This unit extracts a maximum level channel from receiving channels assigned to the antennas every modulation period, cal... | 08/20/2009 |
| 20090179799 | DIRECTION FINDING SYSTEM AND DIRECTION FINDING APPARATUS Disclosed herein is a direction finding system including: a transmitter configured to generate a single carrier; a plurality of receivers, each of which has a receiving antenna; a phase comparison section configured to compare phases of signals received by the receivers... | 07/16/2009 |
| 20090079635 | METHOD AND APPARATUS FOR ADAPTIVE DIRECTION ESTIMATION OF RADIO WAVES In an environment of temporally and spatially uncorrelated white additive noise, the direction estimation apparatus for coherent signals calculates (M−1) instantaneous cross-correlations between some array data, and selecting multiple pairs each of which is consisted ... | 03/26/2009 |
| 20080068265 | PERFORMANCE AND POWER MANAGEMENT IN DIRECTION OF ARRIVAL DETERMINATION BY UTILIZING SENSOR INFORMATION A system for enhancing the performance of a wireless communication device (WCD) while executing a direction of arrival (DoA) estimation. The performance may be improved through device management, and may include the collection of information from one or more sensors ins... | 03/20/2008 |
| 20070115175 | Handheld GPS jammer locator A handheld GPS jammer locator for locating a GPS jamming signal generated by a jammer. The handheld GPS jammer locator has two modes of operation, a amplitude mode and a difference finding mode. The amplitude measures the strength of an incoming GPS jamming signal and t... | 05/24/2007 |
| 20070080862 | Method for operating an antenna assembly A method for operating an antenna assembly (100) produces a desired overall directional dependence. The antenna assembly (100) comprises at least one first partial antenna (R1) and a second partial antenna (R1+R2), which are disposed r... | 04/12/2007 |
| 20060267840 | Method and system of positioning The present invention relates to cellular mobile radio systems, particularly to systems of more than one co-sited cell/sector. A method and apparatus for high accuracy enhanced positioning not requiring more sites than one to be involved in positioning is disclosed. ... | 11/30/2006 |
| 20060250296 | Device for measuring angle positions In a device for measuring angular positions by using radar pulses and mutually overlapping beam characteristics of at least two antenna elements, a switchable phase shifter is provided in the signal path of at least one antenna element which is switchable in the time-di... | 11/09/2006 |
| 20060158375 | Direction finding Direction findings by radio comprises arraigning an array of antennas, to receive signals from emitters, selecting individual antenna signals using a first multipole switch and determining, antenna signal strengths. Individual antenna signals are also selected by mutipo... | 07/20/2006 |
| 20060071853 | METHOD AND SYSTEM FOR DETERMINING DIRECTION OF TRANSMISSION USING MULTI-FACET ANTENNA A method for determining direction of transmission using an antenna array having a number of panels is disclosed. Each panel is configured to receive signals. According to one aspect of the method, each of the panels is directed to receive signals from a transmitting no... | 04/06/2006 |
| 20060066484 | Method and system for determining direction of transmission using multi-facet antenna A method for determining direction of transmission using an antenna array having a number of panels is disclosed. Each panel is configured to receive signals. According to one aspect of the method, each of the panels is directed to receive signals from a transmitting no... | 03/30/2006 |
| 20060049985 | Apparatus and methods for detecting and locating signals A discrete three-dimensional receiving element has multiple sensors scattered over its surface to detect and locate a signal. The sensors facing the signal detect the signal, and a boundary line is drawn between the sensor which detect the signal and those which don't. ... | 03/09/2006 |
| 20050285788 | Technique for direction-of-arrival estimation without eigendecomposition and its application to beamforming at base station An incoming radio wave is received by array antenna elements which constitute an array antenna, and the correlation between the received data of some array antenna elements is calculated to form a correlation matrix which is not affected by the additive noise at each an... | 12/29/2005 |
| 20050280577 | ATTITUDE DETERMINATION SYSTEM USING NULL-STEERED ARRAY Apparatus and process for determining the position and heading or attitude of an antenna array are described based on radiating sources, preferably GNSS or other such satellite positioning systems. An optimum satellite is selected and the antenna array is “null steere... | 12/22/2005 |
