Patent ID: 6233343
Filing Date: 2001-05-15
Classification: G06F,H04R

Abstract:
An electronic system with enhanced audio, comprising:an electronic device, comprising:a power inlet for receiving and delivering power to said electronic device;an incoming power signal from an external power source coupled to said power inlet;an audio signal generated by said electronic device;a delta-sigma modulator having said audio signal as an input and outputting a modulated signal;means for superimposing said modulated signal onto said incoming power signal;a power adapter external to said electronic device, comprising:a mains receptacle;a power outlet coupled to supply power to said power inlet;means for converting energy from said mains receptacle and delivering it to said power outlet;a high pass filter receiving from said power outlet, said superimposed signal as an input and outputting a filtered digital signal;a discriminator receiving said filtered digital signal and outputting a recovered modulated signal;a low pass filter receiving said recovered modulated signal and outputting a low pass filtered recovered audio signal to a speaker.