This inventor holds 3 USPTO granted patents. Top assignees: Matech, Inc., Other. Active years: 1976-2006.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Western Springs, IL (US) (1976)
- Beaverton, OR (US) (1999 - 2006)
Company Filing History:
1 out of 6 
2 out of 834,453 Years Active: 1976-2006
Title: Innovations by Donald R. White
Introduction
Donald R. White is an accomplished inventor based in Beaverton, OR (US). He has made significant contributions to the field of audio technology, holding a total of 3 patents. His work focuses on enhancing communication devices, particularly in the realm of headsets.
Latest Patents
One of Donald R. White's latest patents is for an audio headset that includes two earpieces. In this design, one earpiece functions as a microphone while the other serves as an earphone. The microphone earpiece is isolated from background noise and vibrations through bone conduction, allowing it to convert voice sounds from the air column in the external ear canal into electrical signals. This invention also addresses feedback issues and improves performance compared to existing full duplex communication devices. Another embodiment of this invention features a headset with a band that extends forward from the two earpieces, which can either extend downward or backward.
Additionally, he has developed a full duplex communication circuit that utilizes a transducer as both a microphone and speaker/earphone. This innovative circuit provides full duplex communication without acoustical feedback. It employs a unique amplifier configuration to apply a signal received from a remote source to the transducer without loading it. The output of the transducer combines transmit and receive signals, and an analog audio processing circuit compresses the receive signal while expanding the transmit signal. This results in a transmit signal that is 35-40 dB greater than the receive signal at the output.
Career Highlights
Throughout his career, Donald R. White has worked with various companies, including Matech, Inc. His expertise in audio technology has positioned him as a notable figure in the industry.
Collaborations
Donald has collaborated with several professionals, including Masahisa Masuda, to further enhance his inventions and innovations.
Conclusion
Donald R. White's contributions to audio technology through his patents demonstrate his commitment to improving communication devices. His innovative designs continue to influence the industry and pave the way for future advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile