US PATENT SUBCLASS 455 / 519
.~.~.~.~.~ Talk group forming (e.g., dynamic regrouping, talk group assignment)

Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

39  DF  TRANSMITTER AND RECEIVER AT SEPARATE STATIONS {14}
500  DF  .~ Plural transmitters or receivers (i.e., more than two stations) {4}
507  DF  .~.~ Central station (e.g., master, etc.) {6}
517  DF  .~.~.~ To or from mobile station {5}
518  DF  .~.~.~.~ Having talk group {2}
519.~.~.~.~.~ Talk group forming (e.g., dynamic regrouping, talk group assignment)

DEFINITION

Classification: 455/519

Talk group forming (e.g., dynamic regrouping, talk group assignment):

(under subclass 518) Subject matter which assigns a

subscriber station to a particular communication group.