Location History:
- Glouster, CA (2005 - 2008)
- Ottawa, CA (2007 - 2023)
Company Filing History:
6 out of 3,593 
2 out of 6 
2 out of 83 
Years Active: 2005-2023
Title: James Gregory Ryan: Innovator in Acoustic Signal Processing
Introduction
James Gregory Ryan is a notable inventor based in Ottawa, Canada. He has made significant contributions to the field of acoustic signal processing, holding a total of 10 patents. His work focuses on developing advanced noise cancellation systems and methods that enhance audio quality in various applications.
Latest Patents
One of his latest patents is titled "Direction-dependent single-source forward cancellation." This invention provides active noise cancellation systems that utilize a direction-dependent filter response. The system includes a primary external microphone that captures ambient audio, a secondary microphone for additional input, and a speaker that generates internal audio to cancel unwanted sound. The forward filter operates on the primary receive signal to produce a forward cancellation signal, while a direction finder adjusts the filter response based on the estimated direction of incoming sound.
Another significant patent is the "Acoustic signal processing system capable of detecting double-talk and method." This system employs an adaptive filter to process signals and generate an error signal, which is then used by a double-talk indicator module to detect the presence of simultaneous speech. This innovation is crucial for improving communication clarity in various audio applications.
Career Highlights
James has worked with several prominent companies in the technology sector, including Semiconductor Components Industries, LLC and Sound Design Technologies, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in acoustic technology.
Collaborations
Throughout his career, James has collaborated with notable professionals in the field, including Stephen W. Armstrong and Frederick Edward Sykes. These partnerships have fostered a creative environment that has led to the development of innovative solutions in acoustic signal processing.
Conclusion
James Gregory Ryan is a distinguished inventor whose work in acoustic signal processing has led to significant advancements in noise cancellation technology. His contributions continue to impact the industry, showcasing the importance of innovation in enhancing audio experiences.