Don Armstrong

Title: Don Armstrong: Innovator in Acoustic Touchscreen Technology

Introduction

Don Armstrong is a notable inventor based in Belmont, California. He has made significant contributions to the field of touchscreen technology, particularly in acoustic wave touchscreens. With a total of two patents to his name, Armstrong's work focuses on enhancing the functionality and reliability of touchscreen systems.

Latest Patents

Armstrong's latest patents include a "Stress seal for acoustic wave touchscreens" and a "Contaminant processing system for an acoustic touchscreen." The stress seal patent describes a sealing system designed to prevent contamination of acoustic touchscreen components. This innovative system utilizes a frame positioned over the touchscreen, with tensioning elements that maintain a uniform compressive force along the seal's perimeter. This design allows for a thin, lightweight frame that conforms to the touchscreen's shape while maintaining a small gap for optimal sealing material selection.

The contaminant processing system patent addresses the issue of shadowing effects caused by contaminants on touchscreen surfaces. This system compares measured waveforms against baseline waveforms to validate new touches, ensuring accurate touch recognition even in the presence of contaminants. By monitoring the duration and size of touches, the system can effectively differentiate between valid touches and those caused by external interference.

Career Highlights

Don Armstrong is currently employed at Elo Touchsystems, Inc., where he continues to develop innovative solutions for touchscreen technology. His work has significantly impacted the industry, enhancing user experience and device reliability.

Collaborations

Armstrong collaborates with his coworker, Daniel H Scharff, to further advance the technology in their field. Their combined expertise contributes to the ongoing development of cutting-edge touchscreen solutions.

Conclusion

Don Armstrong's contributions to acoustic touchscreen technology exemplify the spirit of innovation. His patents reflect a commitment to improving user interaction with technology, ensuring that touchscreens remain reliable and effective in various applications.