Patent ID: 7130930
Filing Date: 2006-10-31
Classification: G06F,G11B,Y02D

Abstract:
1. A computer system adapted to play an audio CD, said computer system comprising: a computer subsystem comprising a system CPU, a digital audio generating circuit, a digital computer bus coupling said CPU and said digital-audio generator circuit, and a digital computer bus controller coupled to said digital computer bus; a CD audio subsystem comprising an audio device capable of playing an audio CD, an audio amplifier circuit coupled to said audio device, and an audio interface circuit coupled to said digital computer bus controller via said digital computer bus, wherein said audio device is coupled to said audio interface circuit via an extension to said digital computer bus; and wherein said audio interface being adapted to generate signals to operate said audio device and play said audio CD and adapted to electrically isolate said audio interface from said digital computer bus when power is not being supplied to said computer subsystem.