Communications: directive radio wave systems and devices (e.g. – Determining distance – Combined with determining direction
Reexamination Certificate
2008-09-23
2008-09-23
Alsomiri, Isam (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Determining distance
Combined with determining direction
C342S005000, C342S126000, C342S188000
Reexamination Certificate
active
11103962
ABSTRACT:
A local positioning system using co-polarized and cross-polarized radar mapping is provided. In one embodiment of the method, at least a first electromagnetic pulse having a first polarization is transmitted. A first return signal preferentially having the first polarization is received over a respective period of time. The first return signal is processed so as to isolate a first return pulse corresponding to an object within a radar detection area of the positioning system. At least a second electromagnetic pulse having the first polarization is also transmitted. A second return signal preferentially having a second polarization is received over a respective period of time. The second return signal is processed so as to isolate a second return pulse corresponding to the object. A characteristic of the object is determined in accordance with a relative signal strength of the first return pulse and the second return pulse.
REFERENCES:
patent: 3001193 (1961-09-01), Marie
patent: 3268891 (1966-08-01), Waban
patent: 4104634 (1978-08-01), Gillard et al.
patent: 4297700 (1981-10-01), Nard et al.
patent: 4710020 (1987-12-01), Maddox et al.
patent: 4829442 (1989-05-01), Kadonoff et al.
patent: 4873449 (1989-10-01), Paramythioti et al.
patent: 5375059 (1994-12-01), Kyrtsos et al.
patent: 5390125 (1995-02-01), Sennott et al.
patent: 5406290 (1995-04-01), James et al.
patent: 5438517 (1995-08-01), Sennott et al.
patent: 5483241 (1996-01-01), Waineo et al.
patent: 5552787 (1996-09-01), Schuler et al.
patent: 5572427 (1996-11-01), Link et al.
patent: 5610815 (1997-03-01), Gudat et al.
patent: 5640323 (1997-06-01), Kleimenhagen et al.
patent: 5657226 (1997-08-01), Shin et al.
patent: 5657317 (1997-08-01), Mahany et al.
patent: 5874918 (1999-02-01), Czarnecki et al.
patent: 5933079 (1999-08-01), Frink
patent: 5982164 (1999-11-01), Czarnecki et al.
patent: 5982329 (1999-11-01), Pittman et al.
patent: 5986602 (1999-11-01), Frink
patent: 6011974 (2000-01-01), Cedervall et al.
patent: 6072421 (2000-06-01), Fukae et al.
patent: 6150979 (2000-11-01), Tsui
patent: 6424264 (2002-07-01), Giraldin et al.
patent: 6427079 (2002-07-01), Schneider et al.
patent: 6459966 (2002-10-01), Nakano et al.
patent: 6489917 (2002-12-01), Geisheimer et al.
patent: 6525688 (2003-02-01), Chou et al.
patent: 6556942 (2003-04-01), Smith
patent: 6608593 (2003-08-01), Holt
patent: 6720935 (2004-04-01), Lamensdorf et al.
patent: 2001/0051527 (2001-12-01), Kuwahara et al.
patent: 2003/0005030 (2003-01-01), Sutton et al.
patent: 2003/0007473 (2003-01-01), Strong et al.
patent: 19910715 (2000-09-01), None
patent: 0308585 (1989-03-01), None
patent: 0325539 (1989-07-01), None
patent: 0961134 (1999-12-01), None
patent: 2258577 (1993-02-01), None
patent: PCT/US2004/021366 (2004-12-01), None
International Search Report for International Application No. PCT/US2005/009833 mailed Aug. 21, 2006.
Edelsbrunner, H., et al., “Quadratic Time Algorithm for the Minmax Length Triangulation,”Proceedings of the 32nd Annual Symposium on Foundations of Computer Science, San Juan, Puerto Rico, 1999, pp. 414-423.
Afsar, M.N., et al., “A New Wideband Cavity-Backed Spiral Antenna,”Proceedings of the 2001 IEEE Antennas and Propagation Society Int'l Symposium, vol. 4, 2001, pp. 124-127.
Michelson, D.G., et al., “Use of Circular Polarization in a Marine Radar Positioning System,”Remote Sensing: An Economic Tool for the Nineties, IGARSS '99, Jul. 10-14, 1999.
“Polarimetric Parameters,” MacDonald Dettwiler & Assoc. and RADARSAT Int'l, www.radarsat2.info/polarimetry/rs2.sartek—terms1.pdf, Dec. 19, 2003.
Alsomiri Isam
Morgan & Lewis & Bockius, LLP
Navcom Technology Inc.
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