Appeal 2006-2252
Application 10/397,012
ISSUES
The first issue is whether the Appellants have shown that the
Examiner erred in finding that Brodie and Murphy discloses a GPS.
The second issue is whether the Appellants have shown that the
Examiner erred in finding that Brodie discloses a GPS having a receiver
which receives its own navigation signal such that the navigational signal
can be cancelled by using the GPS receiver’s signal processor.
FINDINGS OF FACT
The Appellants invented an apparatus for continuously monitoring a
plurality of GPS satellites from space rather than from the ground
(Specification page 2). The apparatus includes a plurality of GPS receivers
on the plurality of GPS satellites (Specification p. 2). The appealed claims
do not recite whether the GPS satellites receive and transmit L-band signals
or UHF signals. Each satellite receiver continuously monitors and receives
navigation signals from the plurality of GPS satellites (Specification p. 2).
The Appellants’ invention eliminates the need for all ground monitor
stations outside the continental United States (Specification p. 2).
Each GPS receiver receives navigation signals from its own satellite
and all other GPS satellites in view. The host satellite signal is then
cancelled (Specification p. 2 to 3). The system also includes a Kalman filter
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Last modified: September 9, 2013