Rotation angle transmitter and method of scanning a code...

Details Rotation angle transmitter and method of scanning a code... Rotation angle transmitter and method of scanning a code...

2011-03-08

2011-03-08

Epps, Georgia Y (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S231140, C250S231180, C369S276000

Reexamination Certificate

active

07902493

ABSTRACT:
An optical rotation angle transmitter includes a code disc that has a digital coding and an analog coding. The digital coding has multiple tracks and is configured so as to be secure against error. A current angle interval can be determined from a plurality of possible angle intervals by means of the digital coding, and a precise angle position of the code disc can be determined within the current angle interval by means of the analog coding. Each of the tracks of the digital coding has a light sensor associated with it. Further provided is a method of scanning a code disc of a rotation angle transmitter.

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