Company Filing History:
2 out of 3,593 
2 out of 566 
1 out of 62 
Years Active: 2008-2023
Title: **David Willis: Innovator in Capacitive Sensing Technology**
Introduction
David Willis is an accomplished inventor located in Murray, UT, known for his contributions to capacitive sensing technology. With a total of five patents to his name, Willis has pioneered methods that enhance signal processing in capacitive sensors, showcasing his expertise in this critical field.
Latest Patents
David Willis's most recent patents include a groundbreaking **method to control amplitude and phase of a signal**. This invention features a system designed to generate an offset signal for capacitive sensors. It incorporates a waveform generator alongside an R-2R ladder circuit, configured to generate the offset signal based on the waveform. An adjustable capacitor is interlinked with this circuit to facilitate the precise control of both amplitude and phase, ensuring synchronization with the sensed signal when there's no object detected by the electrodes.
In addition to this, he has also developed **systems and methods to create an offset signal using a sinewave generator with programmable amplitude and phase**. This technology utilizes a digital waveform and two sigma-delta modulators (SDMs) that are capable of selectively adjusting the phase and amplitude of both the control and offset signals, owing to their innovative design influenced by the digital waveform.
Career Highlights
Throughout his career, David Willis has worked with notable companies such as **Semiconductor Components Industries, LLC** and **Alps Alpine Co., Ltd.**. His journey through these organizations has allowed him to cultivate a better understanding of semiconductor technology and signal processing, which is evident in his patent achievements.
Collaborations
David Willis has collaborated with talented individuals such as **Jose Marcos Laraia** and **Matthew Austin Tyler**. These partnerships have contributed to his innovative ideas and development processes, further enhancing the quality and effectiveness of his inventions.
Conclusion
David Willis stands out as a significant figure in the realm of capacitive sensing technology. His innovative patents reflect his dedication to advancing the field, demonstrating both his technical skill and collaborative spirit. As he continues to explore new horizons in invention, David Willis's work remains influential in shaping the future of sensor technology.