Company Filing History:
Years Active: 2010-2013
Title: The Innovations of Dean Swan
Introduction
Dean Swan is an accomplished inventor based in Canton, NY (US). He has made significant contributions to the field of digital signal processing, particularly in the areas of acoustic echo cancellation and filter design. With a total of 3 patents to his name, Swan's work has had a notable impact on voice communication technologies.
Latest Patents
One of Dean Swan's latest patents is the "Second Order Real Allpass Filter." This invention features a digital all-pass filter with an input port leading to an input sum block and a first feed forward path that includes a multiplier. The filter is designed with an output port coupled to an output sum block, which receives signals from the first feed forward path. Additionally, a first feedback path is provided from the output port to the input sum block, incorporating another multiplier. This structure also nests a first order all-pass filter that includes a feed forward path with a forward path delay and a feedback path that begins after the forward path delay element.
Another significant patent is the "Wideband Speakerphone." This invention addresses the substantial processing requirements for acoustic echo cancellation in voice communications, especially as bandwidth increases. The invention divides communications into sub-bands, applying acoustic echo cancellation to some sub-bands while processing others based on the communication status. This innovative approach allows for effective acoustic echo cancellation in wideband communications.
Career Highlights
Throughout his career, Dean Swan has worked with notable companies such as Magor Communications Corporation and Mitel Networks Corporation. His experience in these organizations has contributed to his expertise in developing advanced communication technologies.
Collaborations
Dean has collaborated with talented individuals in the field, including Mirjana Popovic and Dieter Schulz. These collaborations have further enriched his work and innovations.
Conclusion
Dean Swan's contributions to digital signal processing and voice communication technologies are noteworthy. His patents reflect a deep understanding of the challenges in the field and offer innovative solutions that enhance communication quality. His work continues to influence the industry and pave the way for future advancements.
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