초록 ▼

A two-way radio communications system of the simplex or half-duplex type having a communication link to a duplex telephone system is provided wherein the simplex or half duplex mobile radio is provided priority to talk upon demand. The communication link is provided without the time delays inherent

A two-way radio communications system of the simplex or half-duplex type having a communication link to a duplex telephone system is provided wherein the simplex or half duplex mobile radio is provided priority to talk upon demand. The communication link is provided without the time delays inherent in conventional systems.

대표청구항 ▼

A two-way radio communication system for communicating with a duplex telephone system comprising: a common controller; a duplex interconnect station providing a communication link between the duplex telephone system and the two-way radio communication system; a plurality of simplex remote stations,

A two-way radio communication system for communicating with a duplex telephone system comprising: a common controller; a duplex interconnect station providing a communication link between the duplex telephone system and the two-way radio communication system; a plurality of simplex remote stations, each having means for generating a demand-to-talk signal for transmission on a control channel to said common controller at any time including the time when a land telephone party in the duplex telephone system is transmitting on a voice channel via said duplex interconnect station; said common controller having means responsive to said demand-to-talk signal for transmitting a control signal to said duplex interconnect station, and said duplex interconnect station having means responsive to said control signal for establishing a communications path for transmitting audio from the remote station generating said demand-to-talk signal to the telephone land party.