Selective monitoring

Details Selective monitoring Selective monitoring

1991-03-22

1992-07-21

Kuntz, Curtis

Telecommunications

Transmitter and receiver at separate stations

455 381, 455 671, 34082552, H04B 700

Patent

active

051330822

ABSTRACT:
In a conventional non-trunked communication system (10) having a plurality of radios (13) being able to transmit and receive communication containing an ID number on a channel, a method is provided for any one of these radios (13) to select (36) the monitoring of transmissions of another radio communicating on the channel. In a receiving radio, the ID number corresponding to another radio is selectively entered (36) in a memory list of desirable ID's (35) to be monitored (35) by the receiving radio (13). When transmission containing an ID number (42) of a transmitting radio is received from the transmitting radio, the ID number of the transmitting radio is compared (48) to the memory list to find a match. A squelching means (25) is unmuted (31) only if a match is found and other unsquelching conditions are satisfied (56).

REFERENCES:
patent: 4646358 (1987-02-01), Shanley
patent: 4701944 (1987-10-01), Howard et al.
patent: 4716407 (1987-12-01), Borras et al.
patent: 4796291 (1989-01-01), Makino
patent: 4979231 (1990-12-01), Johnson et al.

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