Cordless cellular system base station

A base station for receiving communication signals from first and second wireless remote stations and a PSTN line, comprising:

• standard telephone interface hardware in communication with the PSTN line, wherein said hardware receives a communication signal from said PSTN line and converts said communication information to a first voice signal;
• a receiver establishing a plurality of receive channels, wherein a first receive channel is assigned to receive a first digital communication signal from a first wireless remote station and a second receive channel is assigned to receive a second digital communication signal from a second wireless remote station;
• a first converter in communication with said receiver wherein said first converter decodes said first digital signal to form a second voice signal and decodes said second digital communication signal to form a third voice signal;
• a first voice level comparator having first and second inputs and an output, said first input connected to said first voice signal and said second input connected to said second voice signal to determine which of said signals is the loudest;
• a switch having first, second and third inputs and an output, said first input connected to the first voice signal, said second input connected to said second voice signal and said third input connected to said output of said first voice level comparator, said switch adapted to connect either of the first and second inputs to said output depending upon the output of said first voice level comparator to select the louder of said first and second voice signals;
• a second voice level comparator having first and second inputs and an output, said first input connected to said first voice signal and said second input connected to said third voice signal to determine which of said signals is the loudest;
• a switch having first, second and third inputs and an output, said first input connected to the first voice signal, said second input connected to said third voice signal and said third input connected to said output of said second voice level comparator, said switch connected to said output of said switch dependent upon the output of said second voice level comparator to select the louder of the first and third voice signals;
• a second converter in communication with the first and said second switches, wherein said second converter encodes said output of said first switch to form a first encoded signal and codes said output of said second switch to form a second encoded signal;
• a transmitter establishing a plurality of transmit channels, said transmitter adapted to transmit the first digital signal to said second wireless remote station in a first transmit channel and to transmit the second digital signal to said first wireless remote station in a second transmit channel;
• and
• a summer having first and second inputs and an output, said first input connected to said second voice signal and said second input connected to said third voice signal to form a composite voice signal at said output, wherein said standard telephone interface hardware converts said composite voice signal to a second communication signal for transmission to said PSTN line.

A base station for receiving communication signals from first and second wireless remote stations and a PSTN line, comprising:

• a receiver establishing a plurality of receive channels, wherein a first receive channel is assigned to receive a first digital communication signal said first wireless remote station and a second receive channel is assigned to receive a second digital communication signal from said second wireless remote station;
• a voice detector in communication with said receiver and adapted to detect the presence of said first digital voice signal or said second digital voice signal and to report which of said first and second digital voice signals are the loudest to an output;
• a switch having first, second and third inputs and an output, said first input connected to the first digital voice signal, said second input connected to said second digital voice signal and said third input connected to said output of said voice detector, said switch adapted to connect either of the first and second inputs to said output of said switch depending upon which voice signal is detected as being the loudest by the detector;
• a first converter in communication with said output of said switch, said first converter adapted to decode a voice signal output from said switch to form a first voice signal;
• standard telephone communications hardware in communication with the PSTN line and said first converter, wherein said hardware converts said first voice signal to a first communication signal for transmission to said PSTN line and converts said second communication signal received from the PSTN line to a second voice signal;
• a second converter in communication with said standard communications hardware, wherein said second converter encodes said second voice signal to form a third digital voice signal;
• and
• a transmitter establishing a plurality of transmit channels, said transmitter adapted to transmit said third digital voice signal to said first wireless remote station in a first transmit channel and to transmit said third digital signal to said second wireless remote station in a second transmit channel.