US PATENT SUBCLASS 340 / 825.04
.~.~ Code or pulse responsive

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

825  DF  SELECTIVE {23}
825.03  DF  .~ Channel selection {2}
825.04.~.~ Code or pulse responsive

DEFINITION

Classification: 340/825.04

Code or pulse responsive:

(under subclass 825.03) Subject matter wherein the channel selection is performed in response to a specified pulse or pulse pattern.

SEE OR SEARCH THIS CLASS, SUBCLASS:

825.57+, for pulse-responsive selective systems, in general.