Communications: electrical – Aircraft alarm or indicating systems – Nonalarm flight indicator
Reexamination Certificate
2005-02-08
2005-02-08
Swarthout, Brent A. (Department: 2636)
Communications: electrical
Aircraft alarm or indicating systems
Nonalarm flight indicator
C073S17800T, C033S328000
Reexamination Certificate
active
06853315
ABSTRACT:
A compact, lightweight, cost effective, self-contained standby electronic navigation system with high signal-to-noise ratio and good dynamic stability is provided. The system includes a first sensor module for providing a plurality of rotational rate signals, a second sensor module for providing a plurality of compensation signals, and a microcontroller module for processing the rotational rate signals and the compensation signals and sending the signals to a display for displaying attitude information, directional information, and turn coordinate information on a single screen simultaneously. In one embodiment, the first sensor module includes a plurality of rotational sensors made of piezoelectric elements. The piezoelectric elements are made from a single sheet of piezoelectric material so that the elements possess uniform characteristics, and are arranged to reduce systematic drift and random noise normally present in a rotational rate sensor. The sensors can be configured on a single multi-sensor chip.
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Communication Relating to the Results of the Partial International Search.
Johnson Barron
Moncur Timothy R.
Schiller Peter J.
Dorsey & Whitney LLP
Swarthout Brent A.
Triad Sensors, Inc.
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