Patent ID: 6459942
Filing Date: 2002-10-01
Classification: H04M

Abstract:
A computer system having a microphone providing acoustic coupling to correct for frequency response anomalies in acoustic signals and produce a smooth microphone frequency response, the frequency response anomalies having a first portion and a second portion, comprising:a speakerphone, comprising: a loudspeaker transmitting acoustic signals; a microphone receiving acoustic signals from said loudspeaker; and an equalization system coupled to said microphone providing acoustic coupling to partially equalize the acoustic signals by correcting the first portion of the frequency response anomalies, said microphone passing the partially equalized acoustic signals to a digital signal processor; a digital signal processor receiving the partially equalized acoustic signals from said microphone and providing acoustic coupling to fully equalize the partially equalized acoustic signals by correcting the second portion of the frequency response anomalies to produce a smooth microphone response; and a system processor activating said speakerphone to place the computer system in a speakerphone mode.