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Class Information
Number: 342/129
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Determining distance > With frequency modulation > Plural frequencies transmitted
Description: Subject matter including the transmission of two or more discrete frequency modulated radar carrier signals.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8665139 Distance measuring apparatus and distance measuring method Mar. 4, 2014
8654006 Integrated circuit comprising frequency generation circuitry for controlling a frequency source Feb. 18, 2014
8619908 Wireless ranging system and related methods Dec. 31, 2013
8604971 Scanning near field electromagnetic probe Dec. 10, 2013
8497799 FMCW-type radar level gauge Jul. 30, 2013
8477063 System and method for obstacle detection and warning Jul. 2, 2013
8401860 Voice-activated command and control for remotely controlled model vehicles Mar. 19, 2013
8400349 Radar echo processing with partitioned de-ramp Mar. 19, 2013
8390506 Motor vehicle FMCW radar having linear frequency ramps of different slopes that are set apart, which are associated with different angular ranges Mar. 5, 2013
8358235 Wireless sensor device Jan. 22, 2013
8340686 Positioning systems Dec. 25, 2012
8334802 Radar system Dec. 18, 2012
8305259 Dual-band antenna array and RF front-end for mm-wave imager and radar Nov. 6, 2012
8279112 Methods and apparatuses for RFID tag range determination Oct. 2, 2012
8232914 Radar apparatus Jul. 31, 2012
8170824 System and method for determining distance with precision in the presence of multipath interference May. 1, 2012
8164511 Signal processing device, radar device, vehicle control device, and signal processing method Apr. 24, 2012
8159344 Microwave motion detectors utilizing multi-frequency ranging and target angle detection Apr. 17, 2012
8125373 Microwave system utilizing elevational scanning by frequency hopping Feb. 28, 2012
8115672 Method of measuring distance, notably for short-range radar Feb. 14, 2012
8085183 Antenna radar system and method for its operation Dec. 27, 2011
8035550 Unbalanced non-linear radar Oct. 11, 2011
8026843 Radar methods and systems using ramp sequences Sep. 27, 2011
7932855 Distance measuring device and distance measuring method Apr. 26, 2011
7907084 Radar device and control method of radar device Mar. 15, 2011
7808426 Remote sensing of wave heights using a broadband radar arrangement Oct. 5, 2010
7791532 Radar Sep. 7, 2010
7791528 Method and apparatus for radar signal processing Sep. 7, 2010
7714771 Method and device for measuring the distance and relative speed of multiple objects May. 11, 2010
7714671 Wideband nonlinear "channelizer" for rapid processing of static and time-varying signals May. 11, 2010
7701386 Universal frequency generation and scaling Apr. 20, 2010
7667637 System and method for radar detection of an object Feb. 23, 2010
7659847 Radar mining guidance control system Feb. 9, 2010
7656342 Double-sideband suppressed-carrier radar to null near-field reflections from a first interface between media layers Feb. 2, 2010
7652616 Target object detection system Jan. 26, 2010
7619558 Clock pulse control device of a microwave pulse radar Nov. 17, 2009
7605744 Method for extension of unambiguous range and velocity of a weather radar Oct. 20, 2009
7574732 Object location based security using RFID Aug. 11, 2009
7548181 Earth-penetrating radar with inherent near-field rejection Jun. 16, 2009
7535408 Apparatus and methods for detection of multiple targets within radar resolution cell May. 19, 2009
7528768 Radar device May. 5, 2009
7508337 Radar apparatus and signal processing method Mar. 24, 2009
7495604 Electronic scanning radar apparatus Feb. 24, 2009
7495598 Methods and systems for avoidance of partial pulse interference in radar Feb. 24, 2009
7460052 Multiple frequency through-the-wall motion detection and ranging using a difference-based estimation technique Dec. 2, 2008
7439862 Antenna array for an RFID reader compatible with transponders operating at different carrier frequencies Oct. 21, 2008
7436350 Combined aircraft TCAS/transponder with common antenna system Oct. 14, 2008
7312742 Computerized tomography using radar Dec. 25, 2007
7295147 Sensor arrangement and method for regulating the distance of motor vehicles Nov. 13, 2007
7205931 Method for determining the distance between a base station and a mobile object, in addition to a base station and identification system for a method of this type Apr. 17, 2007

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