Appeal No. 96-3758
Application 08/252,832
form on an LCD display (column 2, lines 32-41). The device
includes a temperature sensor, an infrared sensor, a barometric
sensor, and a flux gate magnetometer to provide signals in
helping to provide the desired navigation data for display
(column 5, lines 18-56).
The claim feature at issue is the requirement that
supplementary navigation data is received from a local vehicle
station. Neither the examiner nor do we regard Pitchford’s
keyboard as such a local station in the context of the claimed
invention. As reasonably construed in light of the appellants
specification, the local station has to be some facility outside
and remote of the vehicle in which the navigation device is
installed, or in the case of Pitchford, a facility outside and
remote of the handheld and portable navigation device.
Pitchford does, however, disclose the presence on its
handheld navigation device an optical input/output port for
serially interfacing the CPU of the instrument with another
electronic device, computer or the like (abstract; column 2, line
68 to column 3, line 6). The only description of any specific
use of this I/O port appears in column 7, lines 16-24 of the
specification:
7
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