US PATENT SUBCLASS 379 / 372
.~ Signal reception at substation

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


379 /   HD   TELEPHONIC COMMUNICATIONS

350  DF  SUPERVISORY OR CONTROL LINE SIGNALLING {5}
372.~ Signal reception at substation {1}
373  DF  .~.~> Incoming call alerting (e.g., ringing) {3}

DEFINITION

Classification: 379/372

Signal reception at substation:

(under subclass 350) subject matter wherein a control or line signal is received at a subscriber terminal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

386, for systems where the signals are received at a point not specifically designated to be a subscriber terminal.