Appeal No. 98-0588
Application 08/501,293
an antenna 35 for RF transmission to and reception from the
remote units 15. (Tymes, column 6, lines 66 to column 7, line
2, Fig. 10, column 17, lines 16-21). The transceivers of the
scanners and the intermediate computers are configured so that
the intermediate computers and the bar code readers
communicate with each other. (Tymes, column 2, lines 38-43).
Tymes also describes that data is transmitted from the reader
when the communication channel is free for receipt of data by
the computer. (Tymes, column 5, lines 39-67). It follows
that Tymes clearly describes a wireless communications system
between a scanner and a computer, where the scanner has a
radio transceiver and the computer has a radio transceiver
which are configured to communicate with one another over a
communication channel.
As to appellants’ first argument, we find that Reddersen
explicitly teaches a scanner capable of selecting between a
plurality of host computers. Further as to appellants’ final
argument, we find that although neither Reddersen nor Tymes
alone teach a radio transmitter within the scanner that could
be programmed to a particular one of a plurality of
communication channels, in combination, the references suggest
appellants’ claimed invention as recited in independent claims
21, 37 and 40.
10
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