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Class Information
Number: 342/112
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Determining velocity > Combined with determining distance > With plural frequencies transmission
Description: Subject matter including transmitting two or more discrete frequencies and determining distance from changes in each of the received frequencies.

Patents under this class:
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Patent Number Title Of Patent Date Issued
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
8203481 Radar system for detecting the surroundings with compensation of interfering signals Jun. 19, 2012
8184040 Radar device and a method of detecting a target object using radar May. 22, 2012
8164511 Signal processing device, radar device, vehicle control device, and signal processing method Apr. 24, 2012
8026843 Radar methods and systems using ramp sequences Sep. 27, 2011
7907084 Radar device and control method of radar device Mar. 15, 2011
7817081 Radar apparatus, method for controlling the same, and vehicle including the same Oct. 19, 2010
7791528 Method and apparatus for radar signal processing Sep. 7, 2010
7786927 Radar, radio frequency sensor, and radar detection method Aug. 31, 2010
7768445 Frequency-modulated radar system with variable pulse interval capability Aug. 3, 2010
7652616 Target object detection system Jan. 26, 2010
7616148 Microwave smart motion sensor for security applications Nov. 10, 2009
7605744 Method for extension of unambiguous range and velocity of a weather radar Oct. 20, 2009
7508337 Radar apparatus and signal processing method Mar. 24, 2009
7492309 Frequency shift keying radar with ambiguity detection Feb. 17, 2009
7327307 Radar system with adaptive waveform processing and methods for adaptively controlling the shape of a radar ambiguity function Feb. 5, 2008
7183968 FM-CW radar system Feb. 27, 2007
7151476 Radar system having a beamless emission signature Dec. 19, 2006
7136013 Radio-wave radar system and adaptive cruise control system Nov. 14, 2006
7071868 Radar detection method and apparatus Jul. 4, 2006
7023377 Noise modulated remote distance measurement Apr. 4, 2006
6972710 Automotive radio wave radar and signal processing Dec. 6, 2005
6933878 Wide bandwidth radar Aug. 23, 2005
6828929 Technique for non-coherent integration of targets with ambiguous velocities Dec. 7, 2004
6703967 Distance measuring device Mar. 9, 2004
6674393 FM-CW radar processing device Jan. 6, 2004
6657582 Radar apparatus capable of measuring a plurality of objects that are in close proximity Dec. 2, 2003
6606052 Method and apparatus for detecting multiple objects with frequency modulated continuous wave radar Aug. 12, 2003
6434506 Process for determining the relative velocity between two moving objects Aug. 13, 2002
6184817 Master frequency generator Feb. 6, 2001
6127965 Method and apparatus for rejecting rain clutter in a radar system Oct. 3, 2000
6023238 Method and device for the removal of ambiguity in distance, applied especially to frequency-shift keying continuous-wave radars Feb. 8, 2000
5963163 Method and device for frequency-modulated continuous-wave radar detection with removal of ambiguity between distance and speed Oct. 5, 1999
5955985 Device for the reduction of noise in a radar receiver Sep. 21, 1999
5945939 Multibeam FM radar system Aug. 31, 1999
5905458 FM radar apparatus May. 18, 1999
5751241 Method and apparatus for measuring the speed of a moving body May. 12, 1998
5677695 Radar apparatus for detecting a distance/velocity Oct. 14, 1997
5646623 Coherent, frequency multiplexed radar Jul. 8, 1997
5606324 Radar system Feb. 25, 1997
5481268 Doppler radar system for automotive vehicles Jan. 2, 1996
5381153 Portable FM-CW radar device with frequency conversion by first and second frequencies Jan. 10, 1995
5285207 Multi-frequency automatic radar system Feb. 8, 1994
5276453 Method for ambiguity resolution in range-Doppler measurements Jan. 4, 1994
5222100 Range based acquisition system Jun. 22, 1993
5136298 Microwave range detector system Aug. 4, 1992
5079556 Coherent pulse radar system Jan. 7, 1992
4851851 Method for measuring the distance and/or the relative velocity between two objects Jul. 25, 1989
4740045 Multiple parameter doppler radar Apr. 26, 1988
4426647 Radar arrangement for measuring velocity of an object Jan. 17, 1984

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