Patent ID: 6377068
Filing Date: 2002-04-23
Classification: H04R

Abstract:
A low impedance audio bus for connecting the outputs of at least two audio transmitters to a receiver, the bus comprising:a plurality of core transmitter circuits, one of the plurality of core transmitter circuits associated with a respective one of the at least two transmitters, each core transmitter circuit responsive to the electrical audio output signal of the associated core transmitter circuit to generate a pair of balanced differentiated audio output signals; at least one core receiver circuit operative to recombine the pair of balanced differentiated audio output signals to generate an electric audio output signal applied to the receiver; means for transmitting the pair of balanced differentiated audio output signals from each core transmitter circuit, in parallel, to the input to the at least one core receiver circuit; and a master control operative to control which of the at least two transmitters has access to the low impedance audio bus to transfer the output of the associated core transmitter circuit to the core receiver circuit.