This inventor holds 1 USPTO granted patent. Top assignee: Nad International. Active years: 1982.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1982
Title: Edward Kelm - Innovator in Phonocartridge Technology
Introduction
Edward Kelm is a notable inventor based in Pasadena, CA (US). He has made significant contributions to the field of audio technology, particularly with his innovative work on phonograph cartridge interfaces. His expertise and creativity have led to the development of a unique solution that enhances the performance of magnetic phonograph cartridges.
Latest Patents
Kelm holds a patent for the "Precision phonocartridge interface." This invention enables any magnetic phonograph cartridge to operate at its proper termination impedance. One embodiment of the device includes a capacitance test section that determines the unknown capacitance of a tonearm cable. The termination network is adjustable to provide the appropriate capacitance and resistance as specified by the cartridge manufacturer. Additionally, a second embodiment features capacitance matching circuitry, allowing for adjustments to the total termination capacitance without requiring actual measurements of the tonearm cable capacitance. This invention can be configured as a stand-alone device or integrated into a phono preamplifier, with an isolation amplifier included to mitigate the effects of input capacitance.
Career Highlights
Edward Kelm is associated with Nad International, where he continues to innovate in the audio technology sector. His work has garnered attention for its practical applications and technical advancements in phonograph technology.
Collaborations
Kelm has collaborated with Stephen L Kurtin, further enhancing the development of audio technology solutions. Their partnership has contributed to the refinement and implementation of innovative ideas in the industry.
Conclusion
Edward Kelm's contributions to phonocartridge technology exemplify the spirit of innovation in the audio field. His patented inventions have the potential to significantly improve the performance of phonograph systems, showcasing his expertise and dedication to advancing audio technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile