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Class Information
Number: 342/194
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > With particular circuit > Complex signal (in phase and quadrature)
Description: Subject matter including receiver circuit means to separate returned radar signals into "in phase" and quadrature" components.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8711032 High-resolution, active reflector radio frequency ranging system Apr. 29, 2014
8670506 Apparatus and method for providing a reduced representation based on a time-domain RF signal Mar. 11, 2014
8665139 Distance measuring apparatus and distance measuring method Mar. 4, 2014
8648745 Electronic scanning radar apparatus, received wave direction estimating method, and received wave direction estimating program Feb. 11, 2014
8619908 Wireless ranging system and related methods Dec. 31, 2013
8581773 Dual frequency transmitter Nov. 12, 2013
8576116 High speed high resolution wide range low power analog correlator and radar sensor Nov. 5, 2013
8552907 Electronic scanning radar apparatus, receiving wave direction estimating method, and computer-readable storage media storing receiving wave direction estimation program Oct. 8, 2013
8547273 Pulse radar apparatus and control method thereof Oct. 1, 2013
8471761 Wideband radar nulling system Jun. 25, 2013
8446312 Electronic scanning type radar device, estimation method of direction of reception wave, and program estimating direction of reception wave May. 21, 2013
8416119 Weather radar apparatus and signal processing method thereof Apr. 9, 2013
8391336 Variable length ranging and direction-finding signals constructed from bandlimited kernels and sparse spreading sequences Mar. 5, 2013
8368582 Doppler radar apparatus and method of calculating doppler velocity Feb. 5, 2013
8358233 Radar target detection process Jan. 22, 2013
8344944 Method and system for continuous wave interference suppression in pulsed signal processing Jan. 1, 2013
8305262 Mismatched pulse compression of nonlinear FM signal Nov. 6, 2012
8305257 Method and apparatus for coherent marine radar measurements of properties of ocean waves and currents Nov. 6, 2012
8269665 Monopulse angle determination Sep. 18, 2012
8193972 Adaptive calculation of pulse compression filter coefficients for a radar signal Jun. 5, 2012
8188911 Low noise generator for frequency swept signals May. 29, 2012
8169359 Pulse doppler radar device May. 1, 2012
8159384 Method for examining an ice region or dry region using radar echo sounding Apr. 17, 2012
8138969 Monobit based low cost high performance radar warning receiver Mar. 20, 2012
8049663 Hardware compensating pulse compression filter system and method Nov. 1, 2011
8022863 Spatially variant apodization (SVA) filter Sep. 20, 2011
8013781 Method and apparatus for radar surveillance and detection of sea targets Sep. 6, 2011
7994968 RF magnitude sampler for holographic radar Aug. 9, 2011
7982661 Coherent frequency modulated continuous wave radar Jul. 19, 2011
7982666 System and method for increasing spectral resolution Jul. 19, 2011
7969344 Methods and systems for improved extraction of a signal from a noisy environment Jun. 28, 2011
7952515 Range gated holographic radar May. 31, 2011
7932852 RFI suppression in SAR Apr. 26, 2011
7924218 System for enhanced detection of a target Apr. 12, 2011
7898459 Adaptive specific differential phase in dual-polarization radar Mar. 1, 2011
7898469 Receiving device for spread spectrum radar apparatus Mar. 1, 2011
7880665 System and method for adaptation of a radar receiver in response to frequency drift in a transmission source Feb. 1, 2011
7868816 Radio detection device and method Jan. 11, 2011
7864105 Distance measuring apparatus and distance measuring method Jan. 4, 2011
7849283 Linear combiner weight memory Dec. 7, 2010
7800529 Method and apparatus for creating and processing universal radar waveforms Sep. 21, 2010
7728755 Reactive parallel processing jamming system Jun. 1, 2010
7719457 Digitally tuned digital radio frequency memory May. 18, 2010
7688256 Velocity extraction Mar. 30, 2010
7683828 System and method for measuring phase and power variance Mar. 23, 2010
7679545 Suppressing motion interference in a radar detection system Mar. 16, 2010
7671789 Method and system for target detection and angle estimation based on a radar signal Mar. 2, 2010
7667638 Detection and resolution of closely spaced targets in a monopulse system Feb. 23, 2010
7656346 Millimeter wave image processor and millimeter wave image processing method Feb. 2, 2010
7656347 Quadrature radar apparatus Feb. 2, 2010

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