This inventor holds 2 USPTO granted patents. Top assignee: Color and Appearance Technology, Inc.. Active years: 1995-1998.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1995-1998
Title: The Innovations of David L. Alston
Introduction
David L. Alston is a notable inventor based in Holland, PA (US). He has made significant contributions to the field of color measurement and appearance technology. With a total of 2 patents, his work has advanced the way color and appearance are quantified and evaluated in various applications.
Latest Patents
One of Alston's latest patents is a colorimetric imaging system for measuring color and appearance. This innovative apparatus integrates a computer-controlled color video camera with controlled illumination conditions. It utilizes a frame grabber to digitize the video signal and employs image processing methods for non-contact colorimetric measurements of complex patterns. The system converts video images from the RGB color space to the standardized CIE XYZ color space, ensuring highly repeatable measurements that align with visual observations.
Another significant patent is a color tolerancing system employing fuzzy logic. This system establishes acceptable pass/fail tolerances for production or inventory samples using fuzzy logic to define a super ellipsoid with six individual tolerance coordinates. The process involves training samples to create a classifier template that ranks samples based on visual ratings. The system iteratively adjusts tolerances to minimize error distances, allowing for accurate shade sorting and quality control.
Career Highlights
David L. Alston is currently associated with Color and Appearance Technology, Inc. His work has been pivotal in developing advanced color measurement systems that enhance quality control processes in various industries.
Collaborations
Alston has collaborated with notable coworkers, including Walter Borys and Mark Jarvis, contributing to the advancement of color and appearance technologies.
Conclusion
David L. Alston's innovative patents and contributions to color measurement technology have significantly impacted the industry. His work continues to influence quality control practices and enhance the understanding of color and appearance attributes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile