Sensing absolute position of an encoded object

Details Sensing absolute position of an encoded object Sensing absolute position of an encoded object

2008-05-01

2009-12-29

Sohn, Seung C (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C356S614000, C359S436000, C341S013000

Reexamination Certificate

active

07638755

ABSTRACT:
In one aspect of the present invention, a device for sensing an absolute position of an encoded object, comprising: a position tracking module comprising: a track illumination module configured to illuminate the encoded object with one more light beams, and to detect one or more light beams resulting from said illumination of said encoded object; and an absolute position determinator configured to determine the absolute position of the encoded object based on said one or more light beams resulting from said illumination of said encoded object.

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