Appeal No. 2001-2017
Application No. 09/098,049
examiner’s position that Schuchman discloses a first receiver at
21, a second receiver at 20, a position computation circuit
inside the second receiver 20 and a means, 22, coupled to the
first receiver, for obtaining data from the radio communication
broadcast and providing the position data to the computation
circuit for use in acquisition of the position satellite. The
examiner maintains that while Schuchman fails to explicitly teach
that the broadcast digital channel is a broadcast control
channel, the use of a control channel for conveying data is
“conventionally well known, which is taught by Wortham” [answer-
page 4]. Since Wortham teaches that control data can be
transmitted via control channel from the base station to the
mobile station, the examiner contends that it would have been
obvious “to provide radio communication on a broadcast control
channel of Wortham into the system of Schuchman in order to
reserve traffic channels for other mobile stations.”
For his part, appellant argues that the art recognizes
distinctions between “broadcast” and “traffic,” or “data link,”
channels and that Schuchman, itself, refers separately to
“broadcast or cellular data link” in Figure 2. Moreover,
appellant argues, Schuchman does not teach the use of a
“broadcast” channel to provide “positioning data.” Rather,
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