US PATENT SUBCLASS 370 / FOR 167
.~ Pilot (370/98)

Current as of: June, 1999
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370 /   HD   MULTIPLEX COMMUNICATIONS

FOR 135  DF  TIME DIVISION (370/77) {14}
FOR 167.~ Pilot (370/98)

DEFINITION

Classification: 370/FOR.167

Pilot:

Foreign art collection including a signal (pilot) separable from the usual information transmitted which signal is utilized for control, maintenance, or improvement of signal quality.