US PATENT SUBCLASS 340 / 825.3
.~ Intelligence comparison

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

825  DF  SELECTIVE {23}
825.3.~ Intelligence comparison {3}
825.31  DF  .~.~> Authorization control (e.g., entry into an area) {2}
825.34  DF  .~.~> Authentication (e.g., identity)
825.35  DF  .~.~> Commodity (e.g., vending)

DEFINITION

Classification: 340/825.3

Intelligence comparison:

(under subclass 825) Subject matter which compares an information bearing item or signal with an information reference, and performing a control function in accordance with the comparison.

(1) Note. Control by a data bearing record (e.g., credit card) is classified elsewhere. See search note below.

SEE OR SEARCH CLASS

235, Registers,

375+, for systems controlled by data bearing records; subclasses 435+ for coded record sensors; and subclasses 487+ for data bearing records, per se.