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Class Information
Number: 342/383
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Utilizing correlation techniques > Sum of each antenna signal
Description: Subject matter wherein the receiving apparatus contains at least two antenna channels (main and auxiliary) which are connected to a summing circuit.

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8643543 Phased array antenna system with intermodulation beam nulling Feb. 4, 2014
8614644 Systems and methods for protecting a receiving antenna from interference by a transmitting antenna Dec. 24, 2013
8599861 Active antenna array and method for relaying radio signals Dec. 3, 2013
8582694 Adaptive digital receiver Nov. 12, 2013
8508410 Adaptive antenna beamforming Aug. 13, 2013
8446318 Controlling a beamforming antenna using reconfigurable parasitic elements May. 21, 2013
8401133 Multi-antenna system using adaptive beamforming Mar. 19, 2013
8289901 Pinning and cascading avoidance in dynamic channel assignment for wireless LANS Oct. 16, 2012
8254988 Method of controlling wireless communication system and wireless communication system Aug. 28, 2012
8243706 Method and system for providing multi-input-multi-output (MIMO) downlink transmission Aug. 14, 2012
8224271 Electronic device with an improved antenna arrangement Jul. 17, 2012
8126504 Method of controlling wireless communication system and wireless communication system Feb. 28, 2012
8115678 Generating an array correlation matrix using a single receiver system Feb. 14, 2012
8111191 Wideband antenna pattern Feb. 7, 2012
8106827 Adaptive array control device, method and program, and adaptive array processing device, method and program Jan. 31, 2012
8013792 Method and apparatus to minimize antenna backside signal response and ambiguity Sep. 6, 2011
7970073 Apparatus and method for transmitting/receiving data in multi-user multi-antenna communication system Jun. 28, 2011
7912507 Amplifier gain control method and apparatus in multi-antenna radio system Mar. 22, 2011
7859461 Method for detecting navigation beacon signals using two antennas or equivalent thereof Dec. 28, 2010
7825857 System, method and apparatus for reducing the effects of low level interference in a communication system Nov. 2, 2010
7800539 Null-fill antenna, omni antenna, and radio communication equipment Sep. 21, 2010
7786948 Array antenna with embedded subapertures Aug. 31, 2010
7629927 Method for forming a beam of an array antenna and apparatus therefor Dec. 8, 2009
7565172 Adaptive antenna reception method and device Jul. 21, 2009
7557752 Apparatus and method for communication Jul. 7, 2009
7492749 Method and system for providing multi-input-multi-output (MIMO) downlink transmission Feb. 17, 2009
7477192 Direction finding system and method Jan. 13, 2009
7463193 Beam forming system Dec. 9, 2008
7450068 Phased array antenna beam tracking with difference patterns Nov. 11, 2008
7432857 Adaptive antenna apparatus provided with a plurality of pairs of bidirectional antennas Oct. 7, 2008
7423588 Phased array antenna system Sep. 9, 2008
7373176 Coordination of beam forming in wireless communication systems May. 13, 2008
7362268 Method for detecting navigation beacon signals using two antennas or equivalent thereof Apr. 22, 2008
7330801 Signal separation using rank deficient matrices Feb. 12, 2008
7324047 Adaptive antenna apparatus for selecting adaptive control processing according to detected signal quality and radio communication apparatus using the same Jan. 29, 2008
7257153 Method of synchronizing a receiver, and a receiver Aug. 14, 2007
7251286 Method and apparatus for space division multiple access receiver Jul. 31, 2007
7248217 Average EIRP control of multiple antenna transmission signals Jul. 24, 2007
7236750 Techniques for correcting for phase and amplitude offsets in a MIMO radio device Jun. 26, 2007
7231151 Cosite interference rejection system using an optical approach Jun. 12, 2007
7190746 Multiple lobe dot product detector for M-code GPS receivers Mar. 13, 2007
7173975 Estimation of a frequency selective channel in a MIMO environment with parameters that vary within a transmission block Feb. 6, 2007
7161534 Hybrid beamforming apparatus and method for the same Jan. 9, 2007
7162273 Dynamically optimized smart antenna system Jan. 9, 2007
7126532 Apparatus for tracing an optimal direction to receive satellite signal in active phase array antenna system Oct. 24, 2006
7126533 Direction-finding for multiple cochannel sources Oct. 24, 2006
7106785 Adaptive antenna reception apparatus with weight updated adaptively Sep. 12, 2006
RE39275 Hardware-efficient demodulator for CDMA adaptive antenna array systems Sep. 12, 2006
7098849 Blind signal separation using array deflection Aug. 29, 2006
7095984 Base station apparatus and direction-of-arrival estimating method Aug. 22, 2006

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