Imaging rotation angle absolute encoder

Details Imaging rotation angle absolute encoder Imaging rotation angle absolute encoder

2006-11-14

2006-11-14

Allen, Stephone B. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S231130, C250S231170, C250S231180, C356S616000, C356S617000

Reexamination Certificate

active

07135673

ABSTRACT:
An angle absolute encoder comprises an encoded code rod that has code marks, such as pairs of fine code lines and coarse code lines. Light is reflected from or transmitted through the code marks and detected by a light detector to determine absolute angle position.

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patent: 2005/0116153 (2005-06-01), Hataguchi et al.

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