Method of operating an active obstacle warning system

Details Method of operating an active obstacle warning system Method of operating an active obstacle warning system

2006-01-17

2006-01-17

Pope, Daryl C (Department: 2632)

Communications: electrical

Land vehicle alarms or indicators

Of relative distance from an obstacle

C340S903000, C340S933000, C340S436000

Reexamination Certificate

active

06987447

ABSTRACT:
From a prescribed starting value, the emitting power of an obstacle detection beam increases or decreases according to a prescribed function at a prescribed rate. The received signal reflected from an obstacle is compared to a prescribed threshold. Once the received reflected power rises or falls to the threshold, the emitting power is not further increased or decreased respectively, but is maintained constant. Thereby, consumed and dissipated power is reduced, unnecessary excessive power use is avoided, and the detection range of the obstacle detection beam is adapted to the prevailing situation.

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patent: WO00/54070 (2000-09-01), None
patent: WO99/60629 (2001-03-01), None

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