Patent ID: 7181233

Claim:
A multi-user non-blocking duplex wireless voice communication system for continuous and simultaneous voice communication among a plurality of users in a group, comprising: (a) a first portable handset having a first transducer or microphone adapted to generate a first handset microphone signal and having a transmitter responsive to said first handset microphone to continuously transmit a wireless signal through a handset antenna, said transmitter being adapted to continuously generate a signal at a first assigned frequency; (b) said first handset including a first side tone signal generating circuit adapted to buffer said first microphone signal and generate a side tone audio signal in response thereto; (c) said first handset including a first receiver adapted to receive and continuously demodulate a transmitted signal received through said antenna at a second assigned frequency and continuously generate a first receiver audio signal in response thereto; (d) said first handset including a second receiver adapted to receive and continuously demodulate a transmitted signal received through said antenna at a third assigned frequency and continuously generate a second receiver audio signal in response thereto; (e) wherein said side tone audio signal, said first receiver audio signal and said second receiver audio signal are combined and continuously reproduced through a first audio transducer, so that a first user of said first handset can simultaneously and continuously hear said first user speak while second and third users on second and third handsets assigned said second and third assigned frequencies can also hear said first, second and third users speak simultaneously and continuously.