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Class Information
Number: 367/90
Name: Communications, electrical: acoustic wave systems and devices > Echo systems > Speed determination > By doppler effect
Description: Subject matter which utilizes the frequency shift of the reflected signal to determine the relative speed of the reflector.










Sub-classes under this class:

Class Number Class Name Patents
367/91 Vehicle mounted system for determining vehicle speed 52


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8654607 System and method for determining wave characteristics from a moving platform Feb. 18, 2014
8633805 Systems and methods to determine motion parameters using RFID tags Jan. 21, 2014
8619672 Apparatus and method for multi-sector velocity mobile velocity and doppler estimate for synchronous communication systems Dec. 31, 2013
8456955 Housings for phased array monostatic sodar systems Jun. 4, 2013
8411530 Multi-frequency, multi-beam acoustic doppler system Apr. 2, 2013
8264908 Method of detecting and compensating for precipitation in sodar systems Sep. 11, 2012
8242888 Systems and methods to determine motion parameters using RFID tags Aug. 14, 2012
8223588 Acoustic doppler dual current profiler system and method Jul. 17, 2012
8218395 Moving object detecting apparatus Jul. 10, 2012
8213262 Transducer array arrangement and operation for sodar applications Jul. 3, 2012
8174930 Housing for phased array monostatic sodar systems May. 8, 2012
8125849 Integrated multi-beam acoustic doppler discharge measurement system Feb. 28, 2012
RE43090 Acoustic Doppler channel flow measurement system Jan. 10, 2012
8077997 Method and apparatus for image processing Dec. 13, 2011
8009513 Transducer array arrangement and operation for sodar application Aug. 30, 2011
7911880 Acoustic doppler dual current profiler system and method Mar. 22, 2011
7839720 System and method for acoustic doppler velocity processing with a phased array transducer including using differently coded transmit pulses in each beam so that the cross-coupled side lobe err Nov. 23, 2010
7791529 System for estimating the speed of an aircraft, and an application thereof to detecting obstacles Sep. 7, 2010
7746220 Moving object detection apparatus Jun. 29, 2010
7613072 System and method for determining directional and non-directional fluid wave and current measurements Nov. 3, 2009
7591787 Method for removing Doppler angle ambiguity Sep. 22, 2009
7545705 System and method for measuring wave directional spectrum and wave height Jun. 9, 2009
7542374 System and method for acoustic Doppler velocity processing with a phased array transducer including applying correction factors to velocities orthogonal to the transducer face Jun. 2, 2009
7539082 System and method for acoustic Doppler velocity processing with a phased array transducer including using a wide bandwidth pulse transmission to resolve ambiguity in a narrow bandwidth velocit May. 26, 2009
7518543 Method for determining positions of targets by bistatic measurements using signals scattered by the targets Apr. 14, 2009
7420875 Methods and systems for use of an acoustic doppler current profiler for measurement of compact jets Sep. 2, 2008
7352651 System and method for determining directional and non-directional fluid wave and current measurements Apr. 1, 2008
7317660 System and method for measuring wave directional spectrum and wave height Jan. 8, 2008
7286443 Fast coherent processing for codes with periodic line spectra Oct. 23, 2007
7209529 Doppler compensated receiver Apr. 24, 2007
7069021 Method and a system for positioning of an electronic device, and an electronic device Jun. 27, 2006
7030806 Time domain radio transmission system Apr. 18, 2006
6965753 Apparatus for performing doppler correction in a wireless communications system Nov. 15, 2005
6918875 Ultrasound measurement apparatus Jul. 19, 2005
6850186 System for determining position and velocity of targets from signals scattered by the targets Feb. 1, 2005
6820008 System and method for measuring deep sea currents Nov. 16, 2004
6714482 Acoustic doppler channel flow measurement system Mar. 30, 2004
6700834 System and method for measuring wave directional spectrum and wave height Mar. 2, 2004
6701252 System for underwater GPS navigation Mar. 2, 2004
6691577 Ultrasonic moving-speed measuring system Feb. 17, 2004
6633617 Device and method for compensating or creating doppler effect using digital signal processing Oct. 14, 2003
6614719 Ultrasonic doppler effect speed measurement Sep. 2, 2003
6577267 Device and method for contactlessly measuring speed on surfaces Jun. 10, 2003
6535158 Kinematic analysis of conically scanned environmental properties Mar. 18, 2003
6317385 Aquaculture feeding monitor Nov. 13, 2001
6314053 Method for detecting mobile objects with active sonar Nov. 6, 2001
6282151 System and method for measuring wave directional spectrum and wave height Aug. 28, 2001
6272071 Speed measuring apparatus Aug. 7, 2001
6262942 Turbulence-resolving coherent acoustic sediment flux probe device and method for using Jul. 17, 2001
6229761 Estimating ship velocity through the water and over the ground May. 8, 2001

1 2 3










 
 
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