Patent ID: 9497540
Filing Date: 2016-11-15
CPC Classification: H03G,H04R

Claim Text:
1. An audio driver for a loudspeaker comprising: a digital processing module configured to generate a digital audio signal having a plurality of tracks; a phase modification circuit coupled to the output of the digital processing module and configured to receive the digital audio signal and selectively shift a phase for each of the plurality of tracks to minimize peak displacement for the loudspeaker; a digital to audio converter (DAC) operable to convert the phase modified digital audio signal supplied by the phase modification circuit to an analog audio signal; and one or more analog driver stages operable to receive the analog audio signal supplied by the DAC and drive the loudspeaker; wherein the phase modification circuit is further configured to add phase shifts to different frequency components of the audio signal to prevent peaks at each frequency from aligning.