Appeal No. 2001-2017
Application No. 09/098,049
position measurements by a mobile device.
Initially, we note that since the examiner employs Wortham
exclusively for the teaching of using a control channel for
conveying data, and appellant now admits that it is known to
transmit control data via a control channel, the use of Wortham
in the rejection is superfluous and we should concentrate on the
issue of whether Schuchman suggests using a broadcast channel to
provide positioning data or whether it would have been obvious to
provide a broadcast channel in Schuchman to do so.
From our review of Schuchman, it does appear that the
reference discloses a “first receiver” in cellular radiotelephone
unit 21 and a “second receiver” in GPS receiver 20 for receiving
positioning information from a satellite. In accordance with
column 7, line 24, of Schuchman, GPS receiver 20 uses data
obtained from controller 22 to, inter alia, “calculate the
position of the receiver” and acquire the positioning satellite.
However, it is not clear, from Schuchman’s disclosure,
whether Schuchman employs a broadcast channel to provide
positioning data to the second receiver 20 by a positioning
satellite or whether the first receiver 21 receives a broadcast
on a broadcast control channel. Schuchman’s abstract states that
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