Appeal No. 2001-0656
Application No. 08/976,645
request is sent from the primary radio station to the matched
secondary radio station to switch off its transmitter and the
further matched secondary stations to ready their receivers for a
message.
We agree with appellants. Kapanen teaches switching off the
transmitter of a radiotelephone during the time when a user is
not speaking, i.e., when there is nothing to transmit, in order
to reduce average power consumption and to improve the
utilization of the radio frequencies [column 3, lines 22-29].
Thus, it was known to switch off radiotelephones in order to
conserve power. However, we find nothing in Kapanen which would
have suggested to switch off the transmitter in a matched
secondary radio station responsive to an extension request from
the primary radio station to the matched secondary station and to
further matched secondary stations after the communication link
is set up. Thus, while Kapanen may teach generally switching off
a radiotelephone when not transmitting anything, that is not a
sufficient suggestion to switch off a transmitter in a secondary
radio station in Yamashita in response to the primary radio
station issuing an extension request.
The examiner says that appellants’ argument is not
-5–
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 Next
Last modified: November 3, 2007