Appeal No. 96-4063
Application 08/389,087
communication interface be "an infrared
communication interface" (claims 56, 70, and 84) having "infrared transmit and receive circuits" (claims
61 and 75).
We do not agree with appellants’ principal argument (Brief, page 8; Reply Brief, page 4) that
neither Rabinowitz nor the other applied references teach or suggest a handheld unit or reducing a
computing unit to handheld size. Specifically, we find that Mitchell actually shows a portable handheld
computing unit (Figure 1) in as much as this term is defined in appellants’ claims and specification.
Mitchell teaches a "portable computer" (column 1, line 7) and further recognized that "[o]ne of the
primary considerations in constructing a portable computer is to make the portable computer light
enough and small enough in overall size to be adequately and comfortably portable." Column 1, lines
11 to 14. Furthermore, we find that Rabinowitz suggests reducing the size of portable computing unit
(such as a data processing system typically consisting of a CPU, RAM, ROM, and one or more I/O
ports/devices) to that of a "handheld personal calculator" (column 1, lines 20 to 21; also see column 1,
lines 15 to 22). Rabinowitz recognized that "[g]reat consumer interest has been generated in these
system[s][sic] as their size has been reduced" (column 1, lines 19 to 20). In addition, Robinson
suggests that the HP 150 family be expanded to include a "portable and transportable unit" (page 42,
columns 1 and 2).
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