Company Filing History:
Years Active: 1993
Title: David U Johnson, III: Innovator in Incremental Encoder Technology
Introduction
David U Johnson, III is an accomplished inventor based in New Carlisle, Ohio. With one notable patent to his name, he has made significant contributions to the field of incremental encoder technology.
Latest Patents
David U Johnson, III holds a patent for a "Backlash compensation circuit for use with an incremental encoder." This innovative circuit addresses the issue of backlash in shafts on incremental encoders that have quadrature and index pulse output lines. The invention works by generating a four-state condition through the logical combination of quadrature signals, allowing for the determination of the rotational direction of the encoder shaft. The circuit enhances reading accuracy by latching the last forward rotational output line state upon detecting reverse rotation, and counters any subsequent pulses until the conditions align correctly.
Career Highlights
Currently, David is affiliated with Am International Incorporated, where he applies his expertise in electronics to advance incremental encoder technologies. His work focuses on solving practical problems in the field, particularly those associated with signal integrity and motion detection.
Collaborations
Throughout his career, David has collaborated with other skilled professionals, including Charles Jeffrey Conner and Peter A Wolf. Their combined efforts have contributed to ongoing innovations in their respective fields, fostering an environment of creativity and technical advancement.
Conclusion
David U Johnson, III continues to be a key player in the development of technologies associated with incremental encoders. His inventive spirit and collaborative work ethic are evident in his contributions to the industry, underscoring his role as an important innovator.