Patent ID: 7155289
Filing Date: 2006-12-26
Classification: A61N,H04R

Abstract:
1. A cochlear implant system comprising: speech processor means for sensing and processing audio sound signals along an audio signal processing path of said speech processor; cochlear implant means for receiving processed signals from the speech processor means and generating electrical stimulation signals as a function thereof; and an audio streaming circuit for allowing access to the audio sound signals at a multiplicity of tap points along the audio signal processing path of the speech processor, wherein the audio streaming circuit includes an auto-referencing mixed-mode phase locked loop circuit that includes (a) means for receiving digital audio samples at a consistent, but unknown, average rate, (b) means for extracting the average sample rate, (c) means for generating a local clock signal at the average sample rate, and (d) means for re-synchronizing the digital audio samples to the local clock signal when audio playback is desired.