Appeal 2007-0869
Application 10/648,587
FINDINGS OF FACT
McCarthy teaches a device for an automobile where there is a GPS
device and a wireless transceiver in the same housing. See figure 2 and
column 3, lines 44 through 47. McCarthy does not discuss how the
oscillators in the systems are used.
Peterzell teaches a system for generating local oscillator signals.
These signals are used in wireless communication devices. See abstract and
para. 0005. The wireless devices may have several bands and modes of
operation. See para. 0027. These modes of operation include GPS which
requires a GPS receiver and transceivers for phone communication. See
para. 0028. The GPS signal path, shown in figure 5 and comprising units
390 and 395, is separate from the phone communication paths shown
flowing from LNA item 320. See para’s 0058 and 0066. Peterzell depicts
several embodiments for local oscillators, which include inputs from a
reference oscillator, see for instance input 405 in fig. 6 and oscillator item,
606 in fig. 8. With respect to figure 6, Peterzell states the phase locked loop
“410 receives a signal at a reference frequency 405 to create discrete channel
spacings within each operating band.” Para. 0069. The local oscillator of
figure 6 can be used as oscillator item 350 in the phone communication path
receiver of figure 5. However, we note that Peterzell does not discuss use of
the local oscillator in the separate GPS signal path, nor does Peterzell teach
that the same reference oscillator should be used for the GPS unit as is used
in the phone units.
BlueCoreTM 01b, Single Chip Bluetooth Device, Product Data Sheet
for BC01b-USB and BlueCoreTM 2-ROM, Single Chip Bluetooth® System,
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