Appeal No. 2005-1637
Application No. 09/749,713
communication system 100 can include any two modes or services” as
supporting the Examiner’s assertion that information exchange in
Bell between the handset 110 and both the cellular network 130 and
cordless base station 150 utilizes a TDMA scheme, we do not find
this persuasive.
In our view, the immediately preceding sentence at column 2,
lines 38-41 of Bell makes it abundantly clear which transmission
schemes can be used for each of the cellular and cordless modes.
According to Bell, the “PCS/Cellular systems may be AMPS, GSM,
TDMA, or CDMA,” while the “cordless system may be DECT, FM, spread
spectrum, or the Bluetooth telephony profile.” Given this express
prescription as to which transmission schemes can be used for each
of the cellular and cordless modes, we find that Bell’s disclosure
that “any two modes or services” can be used can only be reasonably
interpreted as meaning that any one of the schemes contemplated for
each mode can be selected to constitute the two transmission modes
for the dual mode handset. In other words, while any two
transmission schemes can be selected, the TDMA scheme is disclosed
as being limited to an association with the cellular transmission
mode.
Lending further support to this interpretation of Bell is the
description in Bell of event-driven handover of communication
5
Page: Previous 1 2 3 4 5 6 7 8 Next
Last modified: November 3, 2007