US PATENT SUBCLASS 370 / FOR 170
.~.~ Reference indication consists of a gap (370/101)

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

FOR 135  DF  TIME DIVISION (370/77) {14}
FOR 169  DF  .~ Synchronizing (370/100.1) {13}
FOR 170.~.~ Reference indication consists of a gap (370/101)

DEFINITION

Classification: 370/FOR.170

Reference indication consists of a gap:

Foreign art collection including subject matter in which synchronization is achieved by identifying the absence of data transmission for a predetermined interval (i.e., a gap) and using that absence to identify a reference point within a transmission interval.