US PATENT SUBCLASS 455 / 507
.~.~ Central station (e.g., master, etc.)

Current as of: June, 1999
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39  DF  TRANSMITTER AND RECEIVER AT SEPARATE STATIONS {14}
500  DF  .~ Plural transmitters or receivers (i.e., more than two stations) {4}
507.~.~ Central station (e.g., master, etc.) {6}
508  DF  .~.~.~> Having console
509  DF  .~.~.~> Channel allocation {5}
515  DF  .~.~.~> Control channel monitoring (i.e., paging or access channel signaling) for system access
516  DF  .~.~.~> Channel seizing
517  DF  .~.~.~> To or from mobile station {5}
526  DF  .~.~.~> Plural receivers tuned to common frequency

DEFINITION

Classification: 455/507

Central station (e.g., master, etc.):

(under subclass 500) Subject matter having a main station which has at least one transmitter-receiver assembly and a plurality of satellite stations, the satellite stations being connected to the main station by line wire or other means.

(1) Note. The central station may receive messages transmitted by modulated carrier waves from an external source or from one or more satellite stations within the system and selectively transmit the received messages to all satellite receivers, to a selected satellite receiver, or to a receiver external to the system.

(2) Note. The satellite receivers may be capable of

communicating with each other without the intervention of the central station, but in order to communicate with a station external to the system, the communication must go through the central station.

SEE OR SEARCH THIS CLASS, SUBCLASS:

403+, for a radiotelephone system which may include a central station.

561+, for a radiotelephone base station equipment detail.