Company Filing History:
Years Active: 2010-2017
Title: John Cowles: Innovator in Filter Circuits and Amplifiers
Introduction
John Cowles is a notable inventor based in Beaverton, OR (US). He has made significant contributions to the field of electronics, particularly in the development of filter circuits and amplifiers. With a total of 7 patents to his name, Cowles has demonstrated a commitment to innovation and technological advancement.
Latest Patents
Among his latest patents, Cowles has developed filter circuits with emitter follower transistors and servo loops. These circuits include a resistor-capacitor network that receives an input signal and utilizes an emitter follower transistor to provide an output signal. The design incorporates a current source for a constant reference current and a current-buffering servo loop circuit to maintain the collector and emitter currents equal to this reference.
Another significant invention is the incremental gain amplifier. This amplifier features selectable signal paths that allow for discrete gain settings. The logic within the amplifier can increment the gain based on digital or analog control signals. The design includes an input section with multiple input cells and an output section with selectable cells to provide both coarse and fine gain adjustments. The loop amplifier is configured in a feedback arrangement to ensure constant bandwidth operation.
Career Highlights
John Cowles is currently employed at Analog Devices, Inc., where he continues to innovate and contribute to the field of electronics. His work has had a lasting impact on the design and functionality of electronic devices.
Collaborations
Throughout his career, Cowles has collaborated with esteemed colleagues such as Barrie Gilbert and Todd C Weigandt. These partnerships have fostered a creative environment that has led to groundbreaking advancements in technology.
Conclusion
John Cowles is a distinguished inventor whose work in filter circuits and amplifiers has significantly influenced the electronics industry. His innovative spirit and dedication to research continue to inspire future developments in technology.