This inventor holds 4 USPTO granted patents. Top assignees: Analog Devices,inc., Qualcomm Incorporated. Active years: 2008-2011.
Company Filing History:
Years Active: 2008-2011
Title: William Frederick Ellersick: Innovator in Radio Frequency Technology
Introduction
William Frederick Ellersick is a notable inventor based in Sudbury, MA (US). He has made significant contributions to the field of radio frequency technology, holding a total of 4 patents. His work has been instrumental in advancing the capabilities of electronic circuits.
Latest Patents
Ellersick's latest patents include a low power radio frequency divider. This innovative multi-modulus divider (MMD) circuit is designed for high-frequency operation and features a cascade of multiple divide-by-2-or-3 cells. These cells effectively divide an input clock signal to produce a pulse signal. Additionally, the MMD circuit incorporates a pulse stretching circuit that extends the duration of the pulse signal, resulting in an output clock signal. The design utilizes full-swing complementary metal-oxide-semiconductor (CMOS) circuits, ensuring efficiency and performance. Another significant patent is the voltage clamp, which is an active over-voltage clamp system. This system includes an over-voltage detector that responds to input voltage and provides a first current. It also features a replica over-voltage circuit that generates a second current, with circuitry that subtracts the second current from the first to produce a difference current. The differential clamp is activated in response to this difference current, preventing the input voltage from exceeding a target voltage.
Career Highlights
Throughout his career, Ellersick has worked with prominent companies such as Qualcomm Incorporated and Analog Devices, Inc. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in the electronics industry.
Collaborations
Ellersick has collaborated with talented individuals in his field, including Louis J Nervegna and Jennifer Lloyd. These partnerships have fostered innovation and have been crucial in the development of his patented technologies.
Conclusion
William Frederick Ellersick is a distinguished inventor whose work in radio frequency technology has led to multiple patents and advancements in electronic circuits. His contributions continue to influence the industry and inspire future innovations.