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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:
| 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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