Company Filing History:
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Years Active: 2004-2020
Title: The Innovative Contributions of Philip R. Jeffs
Introduction
Philip R. Jeffs is a notable inventor based in Snohomish, WA (US), recognized for his contributions to audio technology. With a total of three patents to his name, Jeffs has made significant advancements in the field of audio signal processing.
Latest Patents
One of his latest patents is titled "Systems and methods for frictionless audio-fader position measurement." This invention provides systems and methods related to measuring a frictionless audio-fader position. The system comprises a control slider, a sensing magnet, and at least two magnetic flux sensors that output voltage or current based on the position of the sensing magnet. A processor calculates the correlation between the position of the sensing magnet and a phase angle between the outputs of the magnetic flux sensors to determine the position of the sensing magnet, which in turn controls an amplifier, mixer, or other hardware or software components.
Another significant patent is the "Tone-control circuit and method for conditioning respective frequency bands of an audio signal." This audio tone-control circuit includes 4-order low-pass, 4-order band-pass, and 4-order high-pass filter circuits. Each filter circuit has a specific phase response and works together to filter an audio signal, generating multiple output signals that are combined into a single output.
Career Highlights
Philip R. Jeffs has worked with Rane Corporation, a company known for its audio equipment and technology. His experience in this company has contributed to his expertise in audio signal processing and innovation.
Collaborations
Throughout his career, Jeffs has collaborated with notable individuals such as Paul Mathews and Dennis A. Bohn. These collaborations have likely influenced his work and contributed to his innovative patents.
Conclusion
Philip R. Jeffs is a distinguished inventor whose work in audio technology has led to significant advancements in the field. His patents reflect a deep understanding of audio signal processing and demonstrate his commitment to innovation.