Method and apparatus for optical encoding with compressible...

Details Method and apparatus for optical encoding with compressible... Method and apparatus for optical encoding with compressible...

2006-06-13

2006-06-13

Allen, Stephone B. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S231180, C341S013000, C341S031000

Reexamination Certificate

active

07060968

ABSTRACT:
The present invention presents an optical encoder with increased conversion rates. Improvement in the conversion rate is a result of combining changes in the pattern recognition encoder's scale pattern with an image sensor readout technique which takes full advantage of those changes, and lends itself to operation by modern, high-speed, ultra-compact microprocessors and digital signal processors (DSP) or field programmable gate array (FPGA) logic elements which can process encoder scale images at the highest speeds. Through these improvements, all three components of conversion time (reciprocal conversion rate)—namely exposure time, image readout time, and image processing time—are minimized.

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