| US 7,548,156 B2 | ||
| Method of distinguishing, from a moving platform, stationary objects from moving objects | ||
| John W. Patchell, Carleton Place (Canada) | ||
| Assigned to 1138037 Ontario Ltd., Ontario (Canada) | ||
| Filed on Jun. 30, 2006, as Appl. No. 11/478,939. | ||
| Claims priority of provisional application 60/696971, filed on Jul. 06, 2005. | ||
| Prior Publication US 2007/0016339 A1, Jan. 18, 2007 | ||
| Int. Cl. B60Q 1/00 (2006.01) | ||
| U.S. Cl. 340—435 [340/436; 340/438; 340/903; 340/933] | 7 Claims |
| 1. A method of distinguishing, from a moving platform, stationary objects from moving objects, the method comprising:
using a first detector mounted to said moving platform to obtain at least a first output representative of a target area;
advancing the moving platform relative to the target area;
using a second detector mounted to said moving platform to obtain at least a second output representative of said target area;
determining an expected time delay between when said at least first output representative of said target area is obtained
and when said at least second output representative of said target area is obtained; and
making at least two comparisons of said first and second outputs for said target area at least two different time intervals,
to distinguish, in said target area, stationary objects from moving objects.
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