Tracking motion using an interference pattern

Details Tracking motion using an interference pattern Tracking motion using an interference pattern

2003-10-16

2010-06-15

Liang, Regina (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

C345S179000

Reexamination Certificate

active

07737947

ABSTRACT:
A system, method, and device for tracking motion across a surface by creating an interference pattern by reflecting light from the surface. There is produced, as a result of sensor moving across the surface, at least one signal pattern corresponding to a detection of a dimension of the interference pattern. This detected dimension is associated with an assumed dimensional value to determine a distance traveled by the sensor.

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