Appeal No. 95-5053
Application 08/048,188
demodulating circuit. The examiner could have, but did not
show examples of combining frequency bands that are adjacent,
but separated from each other, and/or a single demodulation
circuit for diverse communication schemes in other pieces of
equipment, which would have objectively demonstrated the
knowledge of a person of ordinary skill. We note also that
the examiner has not shown that cellular telephones and
900 MHz cordless telephones use the same
modulation/demodulation scheme, which would permit a single
demodulation circuit.2
It is noted that appellant describes different2
modulation schemes for cellular and cordless transmission. It
is stated that "[t]he modulation of the carrier in PLL
frequency synthesizer 61 [in the cellular transmitter 52] is
performed according to a frequency shift keying"
(specification, page 26, lines 17-19) and "[t]he modulation of
the carrier in the PLL frequency synthesizer 67 [in the
cordless transmitter 53] is performed according to a pulse
modulation" (specification, page 27, lines 11-12). This
implies a frequency shift keying demodulation scheme for
receiving cellular transmissions and a pulse modulation
demodulation scheme for receiving cordless transmissions,
which is seemingly inconsistent with providing a single
demodulation circuit. The specification does not describe the
demodulation scheme. We believe appellant should explain for
the record how a single demodulation circuit is used for two
different modulation schemes.
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