Company Filing History:
Years Active: 2002-2006
Title: Innovations by Brad Giles in Hearing Aid Technology
Introduction
Brad Giles is an accomplished inventor based in Salt Lake City, UT (US). He has made significant contributions to the field of hearing aid technology, holding two patents that showcase his innovative approach to solving common issues faced by users.
Latest Patents
One of his latest patents focuses on subband acoustic feedback cancellation in hearing aids. This new subband feedback cancellation scheme is designed to provide additional stable gain without introducing audible artifacts. The scheme employs a cascade of two narrow-band filters, A(Z) and B(Z), along with a fixed delay, rather than a single filter W(Z) and a delay to represent the feedback path in each subband. The first filter, A(Z), is known as the training filter, which models the static portion of the feedback path in the subband, including the microphone, receiver, ear canal resonance, and other relatively static parameters. This training filter can be implemented as either a FIR filter or an IIR filter. The second filter, B(Z), is referred to as the tracking filter and is typically implemented as a FIR filter with fewer taps than the training filter. This tracking filter is responsible for monitoring variations in the feedback path within the subband, which may be caused by jaw movement or objects close to the user's ears.
Career Highlights
Brad Giles has established himself as a key figure in the hearing aid industry through his innovative work at Sonic Innovations, Inc. His contributions have significantly advanced the technology used in hearing aids, improving the user experience for many individuals.
Collaborations
Some of his notable coworkers include Xiaoling Fang and Gerald A Wilson, who have collaborated with him on various projects within the company.
Conclusion
Brad Giles continues to be a driving force in the development of advanced hearing aid technologies. His innovative patents and contributions to Sonic Innovations, Inc. highlight his commitment to improving the lives of those with hearing impairments.