US PATENT SUBCLASS 235 / 462.25
.~.~.~.~ Reader processing circuitry

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}
462.25.~.~.~.~ Reader processing circuitry {4}
462.26  DF  .~.~.~.~.~> Amplitude control (e.g., automatic gain control)
462.27  DF  .~.~.~.~.~> Analog to square wave converter (e.g., digitizer, binarizer, slicer)
462.28  DF  .~.~.~.~.~> Clock generating or sampling circuit
462.29  DF  .~.~.~.~.~> Noise reduction circuit (e.g., electrical filters)

DEFINITION

Classification: 235/462.25

Reader processing circuitry:

(under subclass 462.01) Subject matter including specific circuitry that receives a signal from the photo-detector and converts it into a representative information signal of the bar code.

SEE OR SEARCH CLASS

358, Facsimile,

505+, 474+ for scanner in a facsimile system.

382, Image Analysis,

140, for optical imager or reader for reading MICR data, subclasses 182+ for pattern recognition, and subclasses 312+ for image sensing.