US PATENT SUBCLASS 235 / 462.29
.~.~.~.~.~ Noise reduction circuit (e.g., electrical filters)

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  DF  .~.~.~.~ Reader processing circuitry {4}
462.29.~.~.~.~.~ Noise reduction circuit (e.g., electrical filters)

DEFINITION

Classification: 235/462.29

Noise reduction circuit (e.g., electrical filter):

(under subclass 462.25) Subject matter including electrical filter (such as low pass, band pass, or high pass filter) to eliminate an unwanted signal.

SEE OR SEARCH CLASS

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

551+, for unwanted signal suppression.

364, Electrical Computers and Data Processing Systems,

724.01+, and subclass 825 for filtering a data signal.