US PATENT SUBCLASS 235 / 462.23
.~.~.~.~.~ Auto-focusing

Current as of: June, 1999
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235 /   HD   REGISTERS

435  DF  CODED RECORD SENSORS {9}
439  DF  .~ Particular sensor structure {8}
454  DF  .~.~ Optical {10}
462.01  DF  .~.~.~ Bar code {20}
462.22  DF  .~.~.~.~ Extended reader working range (e.g., multiple focal planes) {1}
462.23.~.~.~.~.~ Auto-focusing {1}
462.24  DF  .~.~.~.~.~.~> Using an imager (e.g., CCD or camera-type reader)

DEFINITION

Classification: 235/462.23

Auto-focusing:

(under subclass 462.22) Subject matter including a lens system controlled by an electrical motor (such that a light beam is properly focused for accurate bar code reading) in response to the working range of the bar code reader.

SEE OR SEARCH CLASS

382, Image Analysis,

255, for focus measuring or adjustment by image enhancement or restoration.