Appeal No. 97-3665
Application 08/280,039
frequency. The receivers constitute the user terminals. It
does not matter that the receivers do not provide any
indication of receipt back to the source of transmission.
Bidirectional communication is not required by the claims. In
any event, Stringer contemplates that an interested user make
a telephone call to the source of transmission to make a
purchase of the transmitted data (column 4, lines 36-40). The
telephone lines are reasonably deemed a part of the
communications network used, and none of the appellant’s
claims requires that any particular data travel all legs of
the communications network.
The appellant further argues (Br. at 9) that in a
particular embodiment disclosed in Stringer, the perceived
quality of data is exactly the same for both the evaluation
version and for the actual version upon purchase, whereas the
claimed invention requires the two versions to be different in
quality. The argument is without merit since it discusses
only a particular embodiment of Stringer and ignores other
embodiments which include versions of different quality, one
for evaluation, and one for purchase. See examples 2, 3, and
4 described in Stringer’s columns 12-13.
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