US PATENT SUBCLASS 342 / 453
.~.~ By deflected or repeated signal

Current as of: June, 1999
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342 /   HD   COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION)

350  DF  DIRECTIVE {10}
450  DF  .~ Position indicating (e.g., triangulation) {11}
453.~.~ By deflected or repeated signal

DEFINITION

Classification: 342/453

By reflected or repeated signal:

(under subclass 450) Subject matter wherein the receiver signals have been deflected by an object or a surface or have been retransmitted by a repeater station.

(1) Note. The receiver is at a remote location from the transmitter.