Patent ID: 7744428

Claim:
An audio signal switcher comprising: a jack switcher comprising an audio jack and a first USB port; the first USB port comprising a first data pin, a second data pin, and a ground pin, the audio jack comprising a left track segment, a right track segment, and a ground segment, which are electrically isolated coupled to at least three pins of the first USB port, further comprising a plug switcher, wherein the plug switcher comprises an audio plug and a second USB port; the second USB port comprises a first data pin, a second data pin, a power pin, and a ground pin; the audio plug comprises a left track segment, a right track segment, and a ground input, which are electrically isolated coupled to at least three pins of the second USB port according to a connection between the audio jack and the first USB port; the plug switcher is connected to the jack switcher by a USB cable.