US PATENT SUBCLASS 370 / FOR 185
.~.~ Digital tone signal generation (370/110.2)

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

FOR 135  DF  TIME DIVISION (370/77) {14}
FOR 184  DF  .~ Signalling (ancilliary to main information) (370/110.1) {4}
FOR 185.~.~ Digital tone signal generation (370/110.2)

DEFINITION

Classification: 370/FOR.185

Digital tone signal generation:

Foreign art collection including a generator which creates a digital signal which represents a tone or a wave signal.