Patent ID: 6243366
Filing Date: 2001-06-05
Classification: H04B

Abstract:
A satellite system using a one-way channel to provide interactive two-way communications between communication sites located within a single satellite beam, comprising:a receiver at a first communication site for receiving a first set of information signals on the one-way channel, said first set of information signals being generated by a first user using a second communication site;a voice activity detector coupled to said receiver for detecting said first set of information signals, and generating a first detection signal when said first set of information signals are detected, and a second detection signal when said first set of information signals are not detected;a transmitter for transmitting a second set of information signals to said second communication site on the one-way channel, said second set of information signals being generated by a second user using said first communication site;a silence power suppressor coupled to said voice activity detector for receiving said detection signal, and coupled to said transmitter for turning power to said transmitter off in response to said first detection signal, and turning power to said transmitter on in response to said second detection signal.