US PATENT SUBCLASS 345 / 165
.~.~.~.~ Photosensor encoder

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


345 /   HD   COMPUTER GRAPHICS PROCESSING, OPERATOR INTERFACE PROCESSING, AND SELECTIVE VISUAL DISPLAY SYSTEMS

156  DF  DISPLAY PERIPHERAL INTERFACE INPUT DEVICE {8}
157  DF  .~ Cursor mark position control device {7}
163  DF  .~.~ Mouse {2}
164  DF  .~.~.~ Rotatable ball detector {1}
165.~.~.~.~ Photosensor encoder

DEFINITION

Classification: 345/165

Photosensor encoder:

(under subclass 164) Subject matter wherein photosensors are used for encoding the rotation of the rotatable ball.

SEE OR SEARCH CLASS

250, Radiant Energy, appropriate subclasses for photosensor encoder, per se.