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Class Information
Number: 342/6
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Radar reflector > With modulation
Description: Subject matter including means to vary the amplitude, frequency of phase of a far field radar signal as it is being reflected.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8674870 Methods and apparatus for active reflection Mar. 18, 2014
8289199 System and method for pattern design in microwave programmable arrays Oct. 16, 2012
8190278 Method for control of a device May. 29, 2012
8164308 Apparatus and method for capturing cosmic background radiation and converting the same to electricity Apr. 24, 2012
8066218 Anti-missile defense suite Nov. 29, 2011
8017217 Variable emissivity material Sep. 13, 2011
7965220 Smart chaff Jun. 21, 2011
7847721 Decoy for deceiving radar systems, especially doppler radar systems Dec. 7, 2010
7808420 Electromagnetic imaging by four dimensional parallel computing Oct. 5, 2010
7719462 Time-of-flight radar calibration system May. 18, 2010
7672480 Method for photographing on board of a flying rotating body and system for carrying out said method Mar. 2, 2010
7486226 Device and a method for accurate radar level gauging Feb. 3, 2009
7283085 System and method for efficient, high-resolution microwave imaging using complementary transmit and receive beam patterns Oct. 16, 2007
6798349 Passive microwave tag identification system Sep. 28, 2004
6792383 Passive ranging system and method Sep. 14, 2004
6664916 System and method for identifying navigational markers using radar Dec. 16, 2003
6571714 Silicon window infrared augmenter Jun. 3, 2003
6570525 Method and device for the encoding and decoding of power distribution at the outputs of a system May. 27, 2003
6559790 Broadband passive moving target simulator May. 6, 2003
6529154 Method and apparatus for reading two dimensional identification symbols using radar techniques Mar. 4, 2003
6456225 Reflector circuit Sep. 24, 2002
6300894 Antenna having electrically controllable radar cross-section Oct. 9, 2001
5841392 Pulse-echo ranging system with improved target Nov. 24, 1998
5819164 Modulated retroreflection system for secure communication and identification Oct. 6, 1998
5808577 Stealth aircraft identification system Sep. 15, 1998
5796362 Post launch on-board identification friend or foe system Aug. 18, 1998
5748138 Synchronous identification of friendly targets May. 5, 1998
5684490 Highway vehicle guidance system Nov. 4, 1997
5680136 Electrically adjustable microwave reflector and application as an electromagnetic decoy Oct. 21, 1997
5673049 Police radar jammer Sep. 30, 1997
5670959 Antenna reflector Sep. 23, 1997
5590031 System for converting electromagnetic radiation energy to electrical energy Dec. 31, 1996
5583507 Passive identification of friend vs. foe apparatus and method Dec. 10, 1996
5570230 Retroreflector for laser geodesy with omnidirectional correction of speed aberrations Oct. 29, 1996
5508704 Method and apparatus for modulating a doppler radar signal Apr. 16, 1996
5501724 Coating composition for attenuating reflection of electromagnetic radiation Mar. 26, 1996
5493301 Spin determination of KE projectiles Feb. 20, 1996
5459470 Beam steered laser IFF system Oct. 17, 1995
5459468 Pulsing radar reflector Oct. 17, 1995
5424737 Communications retro-reflector Jun. 13, 1995
5369408 Self-mixing expendable Nov. 29, 1994
5345243 Continuous-wave reflection transmissometer with target discrimination using modulated targets Sep. 6, 1994
5319373 Method and apparatus for determining ship position in a television image Jun. 7, 1994
5307068 Tunable high-frequency devices Apr. 26, 1994
5274379 Optical identification friend-or-foe Dec. 28, 1993
5223839 Radar identification Jun. 29, 1993
5204680 Radar reflecting target for reducing radar cross-section Apr. 20, 1993
5202689 Lightweight focusing reflector for space Apr. 13, 1993
5036323 Active radar stealth device Jul. 30, 1991
5008677 Anti-jamming device for a radar provided with a reflector antenna Apr. 16, 1991

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