Patent ID: 9549248
Date: 2017-01-17
CPC Classifications: H04R

Claim:
1. An integrated audio signal processing circuit for driving a first speaker and a second speaker, wherein the first and the second speakers share a common ground terminal, the integrated audio signal processing circuit comprising: a first channel circuit for receiving a first input signal and driving the first speaker, the first channel circuit including a first mixer circuit coupled to a first driver circuit; a second channel circuit for receiving a second input signal and driving the second speaker, the second channel circuit including a second mixer circuit coupled to a second driver circuit; a first signal detection circuit coupled to an output of the first driver circuit and configured for providing a first detected output signal; a second signal detection circuit coupled to an output of the second driver circuit and configured for providing a second detected output signal; a first signal attenuation circuit coupled to the first input signal and configured for providing a first correction signal to the second mixer circuit based on the second detected output signal provided by the second signal detection circuit; and a second attenuation circuit coupled to the second input signal and configured for providing a second correction signal to the first mixer circuit based on the first detected output signal provided by the first signal detection circuit; wherein the second signal attenuation circuit and the first mixer circuit are configured by: wherein the first signal attenuation circuit and the second mixer circuit are configured by: