Appeal Number: 2006-1385
Application Number: 10/452,753
unpatentable over Shridhara in view of Beesley, and additionally because
Shridhara discloses a PN code generator (Fig. 3) that becomes disabled when the
GPS reception is disabled.
We turn next to claim 5. We are not persuaded by Appellants’ assertion (Br. 8)
that Shridhara and Beesley do not disclose periodically monitoring a coherent
correlator output. We sustain the rejection of claim 5 for the reasons we sustained
the rejection of claim 1 under 35 U.S.C. § 103(a) as being unpatentable over
Shridhara in view of Beesley, and additionally because the disclosure in Shridhara
(col. 4, ll. 34-36) of detecting a sudden rise in the correlator chain output would
have suggested to an artisan to periodically monitor a coherent correlator output.
We turn next to claim 6. We are not persuaded by Appellants’ assertion (Br. 8)
that Shridhara and Beesley do not disclose:
blanking the satellite positioning system receiver with the blanking signal
includes at least one of disregarding an output of a signal correlator of the
satellite positioning system receiver during blanking periods, applying zero
input to the signal correlator of the satellite positioning system receiver
during blanking periods, and suspending operation of the signal correlator
operation of the satellite positioning system receiver during blanking
periods.
In Shridhara, we find that because the signal correlator (311) is integrated in
the GPS receiver (col. 6, ll. 13-17 and Fig. 3), the operation of the signal correlator
becomes suspended when the jamming signal is detected and the GPS reception is
subsequently disabled. From our review of the record, we agree with the Examiner
that the teachings of Shridhara would have suggested to an artisan the invention set
forth in claim 6, and are not convinced of any error on the part of the Examiner in
rejecting claim 6 under 35 U.S.C. § 103(a) as being unpatentable over Shridhara in
view of Beesley. Accordingly, the rejection of claim 6 is sustained.
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