US PATENT SUBCLASS 250 / 206
.~ Photocell controlled circuit

Current as of: June, 1999
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250 /   HD   RADIANT ENERGY

200  DF  PHOTOCELLS; CIRCUITS AND APPARATUS {11}
206.~ Photocell controlled circuit {9}
206.1  DF  .~.~> Having means to generate positional information in at least one plane of a target moving relative to one or more photodetectors {1}
555  DF  .~.~> Including coded record {2}
558  DF  .~.~> Stereoplotters
564  DF  .~.~> With circuit for evaluating a fluent material {1}
207  DF  .~.~> Electron multiplier
208.1  DF  .~.~> Plural photosensitive image detecting element arrays
208.2  DF  .~.~> Plural photosensitive nonimage detecting elements {4}
210  DF  .~.~> Bridge and push-pull circuits
214 R  DF  .~.~> Special photocell or electron tube circuits {15}

DEFINITION

Classification: 250/206

(under subclass 200) Subject matter in which the photocell controls an electrical or electro-mechanical system circuit, and systems circuits under subclass 200 for supplying electric current and/or potential to a photocell.

(1) Note. In order to be classified in this and indented subclasses, the electrical or electro-mechanical system circuit should be significant. It is significant if it is recited in the claims more specifically than by name only, or if it is disclosed as being nonconventional.