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Class Information
Number: 342/85
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Return signal controls radar system > Transmitter > Signal phase or frequency other than pulse repetition frequency (prf) > Function of distance
Description: Subject matter wherein the radar transmitter frequency is varied as function of target distance.










Sub-classes under this class:

Class Number Class Name Patents
342/87 With constant beat frequency 20
342/86 With constant phase 10


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8552904 In-vehicle pulse radar Oct. 8, 2013
8537049 Multi-function radar device Sep. 17, 2013
8427364 Method and system for scanning a radar search volume and correcting for 3D orientation of covariance ellipsoid Apr. 23, 2013
8248210 Method and system to determine the position, orientation, size, and movement of RFID tagged objects Aug. 21, 2012
8031106 Object ranging Oct. 4, 2011
7965224 Running control system for vehicle Jun. 21, 2011
7956797 System and method for measuring a relative distance between vehicle components using ultra-wideband techniques Jun. 7, 2011
7928896 Application of time reversal to synthetic aperture imaging Apr. 19, 2011
7907084 Radar device and control method of radar device Mar. 15, 2011
7649925 Time transfer utilizing ultra wideband signals Jan. 19, 2010
7650239 Object recognition apparatus for motor vehicle Jan. 19, 2010
7619558 Clock pulse control device of a microwave pulse radar Nov. 17, 2009
7598903 Sensor for measuring distance and method for measuring distance using the sensor Oct. 6, 2009
7586433 Dual port memory trigger system for a ground penetrating radar Sep. 8, 2009
7576683 Methods and systems for reducing interference caused by antenna leakage signals Aug. 18, 2009
7561099 Radar device Jul. 14, 2009
7518548 Method for determining quality of measurement in a radar level gauge system Apr. 14, 2009
7420503 Small-sized low-power dissipation short-range radar that can arbitrarily change delay time between transmission and reception with high time resolution and method of controlling the same Sep. 2, 2008
7379013 Detecting objects within a near-field of a frequency modulated continuous wave (FMCW) radar system May. 27, 2008
RE40128 Stabilization in a radar level gauge Mar. 4, 2008
7265598 Narrow ultra wideband pulse generator Sep. 4, 2007
7248205 Radar apparatus Jul. 24, 2007
7239262 Delivery of quasi-periodic pulses of EM energy utilizing the principle of beating-wave amplification Jul. 3, 2007
7230565 Radar Jun. 12, 2007
7136753 Object recognition apparatus for vehicle, inter-vehicle control apparatus, and distance measurement apparatus Nov. 14, 2006
7109915 Radar apparatus Sep. 19, 2006
7098843 Automatic sensitivity control for radar level gauges Aug. 29, 2006
7095363 Pulse radar apparatus Aug. 22, 2006
7095362 Radar measurement device, especially for a motor vehicle, and method for operating a radar measurement device Aug. 22, 2006
7034739 Delivery of quasi-periodic pulses of EM energy utilizing the principle of beating-wave amplification Apr. 25, 2006
7023331 Peripheral monitor for monitoring periphery of vehicle Apr. 4, 2006
6989781 Short-range radar system with variable pulse duration Jan. 24, 2006
6906660 Radar system and car radar system Jun. 14, 2005
6879281 Pulse radar detection system Apr. 12, 2005
6831594 Guided waver radar level transmitter Dec. 14, 2004
6798373 FM-CW radar system Sep. 28, 2004
6741203 Adaptive radar thresholds system and method May. 25, 2004
6639543 Sensor front-end for vehicle closing velocity sensor Oct. 28, 2003
6587071 Device for detecting objects in the area surrounding a vehicle Jul. 1, 2003
6483453 Method for reducing transmit power for traffic alert and collision avoidance systems and airborne collision avoidance systems Nov. 19, 2002
6420995 Radar and IFF system Jul. 16, 2002
6348889 Radar apparatus Feb. 19, 2002
6300897 Stabilization in a radar level gauge Oct. 9, 2001
6204801 System and method for obtaining precise missile range information for semiactive missile systems Mar. 20, 2001
6097331 FM-CW radar system for measuring distance to and relative speed of target Aug. 1, 2000
6094159 Process for measuring distance with adaptive amplification Jul. 25, 2000
6008751 Radar apparatus installed on vehicle for managing reflector information Dec. 28, 1999
5896102 Swept range gate radar system for detection of nearby objects Apr. 20, 1999
5854603 Ultra-wideband swept range gate radar system with variable transmitter delay Dec. 29, 1998
5717399 Radar device for vehicle use Feb. 10, 1998

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