System and method for determining a distance of an object...

Details System and method for determining a distance of an object... System and method for determining a distance of an object...

2005-05-24

2005-05-24

Luu, Thanh X. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

With circuit for evaluating a web, strand, strip, or sheet

C356S005010

Reexamination Certificate

active

06897465

ABSTRACT:
A system and method for determining a distance of an object is provided. The method includes transmitting a light pulse to a polymeric light reflector at a first time. The method further includes reflecting the light pulse from the reflector. The method further includes receiving a portion of the light pulse reflected from an object at a second time. Finally, the method includes determining a distance of the object from the reflector based on a time difference between substantially the first and second times.

REFERENCES:
patent: 5434754 (1995-07-01), Li et al.
patent: 5669174 (1997-09-01), Teetzel
patent: 5890796 (1999-04-01), Marinelli et al.
patent: 5949530 (1999-09-01), Wetteborn
patent: 5953110 (1999-09-01), Burns
patent: 6279687 (2001-08-01), Pustelniak et al.
patent: 6422713 (2002-07-01), Fohl et al.

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