Patent ID: 7016266

Claim:
A sharing device for multiple audio sources, the sharing device comprising: a distributor with multiple input ports and multiple output ports, wherein each input port is adapted to connect with the audio source, each input port of the distributor having a first connector adapted to connect to the audio source, the first connector having two terminals respectively connected to two operational amplifiers, the two operational amplifier having two output terminals as first select pins, each output of the distributor having a first multiplexer with input terminals connected to the first select pins; and multiple output units respectively connected to the multiple output ports, wherein each output unit is connected to a sound output device, each first multiplexer having output terminals connected to a corresponding output unit through a sound input connector; each output unit including: a channel selecting button to select one audio source from the multiple audio sources; a second multiplexer having first input terminals for connection to the sound input jack and having second input terminals for connection to the sound input connector through a second connector; a switching chip having an input terminal to connect to the channel selecting button and having two output terminals to connect to the distributor through the second connector; and a D/A converter connected to the second multiplexer through the volume tuner, wherein the D/A converter is further connected to the sound output device through a third connector; wherein the second multiplexer further has two control pins connected to the sound input jack.