Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Aeronautical vehicle
Reexamination Certificate
2011-06-14
2011-06-14
To, Tuan C (Department: 3663)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Aeronautical vehicle
C701S004000, C701S011000, C701S023000, C701S120000, C348S148000, C348S119000, C348S143000, C382S291000, C382S103000, C382S104000, C382S116000, C708S235000, C345S601000
Reexamination Certificate
active
07962252
ABSTRACT:
A self-contained avionics sensing and flight control system is provided for an unmanned aerial vehicle (UAV). The system includes sensors for sensing flight control parameters and surveillance parameters, and a Global Positioning System (GPS) receiver. Flight control parameters and location signals are processed to generate flight control signals. A Field Programmable Gate Array (FPGA) is configured to provide a look-up table storing sets of values with each set being associated with a servo mechanism mounted on the UAV and with each value in each set indicating a unique duty cycle for the servo mechanism associated therewith. Each value in each set is further indexed to a bit position indicative of a unique percentage of a maximum duty cycle for the servo mechanism associated therewith. The FPGA is further configured to provide a plurality of pulse width modulation (PWM) generators coupled to the look-up table. Each PWM generator is associated with and adapted to be coupled to one of the servo mechanisms.
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Adams James K.
Babel, III Walter C.
Fox Robert L.
Fox, legal representative Christopher L.
Fox, legal representative Melanie L.
Galus Helen M.
Mawari Redhwan
The United States of America as represented by the Administrator
To Tuan C
Warmbier Andrea Z.
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