Communications: directive radio wave systems and devices (e.g. – Directive – Beacon or receiver
Reexamination Certificate
2010-07-22
2011-10-11
Issing, Gregory C (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Beacon or receiver
C342S432000, C342S445000, C342S357590
Reexamination Certificate
active
08035562
ABSTRACT:
An advanced multiple-beam GPS receiving system is achieved that is capable of simultaneously tracking multiple GPS satellites independently, detecting multiple interference signals individually, and suppressing directional gain in the antenna pattern of each beam in the interference directions. The GPS receiving system can be used for both planar and non-planar receiving arrays, including arrays that are conformally applied to the surface of a platform such as an aircraft. The GPS receiver combines spatial filtering and acquisition code correlation for enhanced rejection of interfering sources. Enhanced gain in the direction of GPS satellites and the ability to shape the beam patterns to suppress gain in the direction of interfering sources make the GPS receiving system largely insensitive to interfering and jamming signals that plague conventional GPS receivers.
REFERENCES:
patent: 4062015 (1977-12-01), Litva et al.
patent: 5936571 (1999-08-01), Desjardins
patent: 5952968 (1999-09-01), McDowell
patent: 6771220 (2004-08-01), Ashe et al.
patent: 6847327 (2005-01-01), Ylitalo
patent: 7250903 (2007-07-01), McDowell
patent: 7324582 (2008-01-01), Carson
patent: 7579984 (2009-08-01), Wang et al.
patent: 2002/0033766 (2002-03-01), Pratt
patent: 2002/0050944 (2002-05-01), Sheynblat et al.
patent: 2003/0201934 (2003-10-01), Asher et al.
patent: 2003/0222816 (2003-12-01), Liu et al.
patent: 2005/0099334 (2005-05-01), Roh
patent: 2002-064331 (2002-02-01), None
“Global Positioning System Using Digital Beam Forming”, Fisch et al.; Institut für Hochfrequenztechnik, Technische Universität München, Germany; 1998; pp. 540-544.
Issing Gregory C
O'Melveny & Myers LLP
Spatial Digital Systems, Inc.
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