This inventor holds 2 USPTO granted patents. Top assignee: Sperry Corporation. Active years: 1983.
Company Filing History:
Years Active: 1983
Title: **Christopher R. Dusard: Innovator in Cathode Ray Tube Displays**
Introduction
Christopher R. Dusard, based in Phoenix, AZ, is an accomplished inventor known for his innovative contributions to the field of display technology. With two patents to his name, Dusard has made significant strides in improving the performance of cathode ray tube (CRT) displays, particularly in challenging environments.
Latest Patents
Dusard’s latest patents focus on enhancing the visual quality of patterned screen color CRT displays. His first patent addresses the issues of roping and moire reduction in such displays. Specifically, in a shadow-mask type color CRT, under various ambient light conditions, users often experienced visually disturbing effects—stroke written lines that resembled twisted ropes and raster areas that appeared wavy. Dusard's innovative approach involves varying the electron beam focus in accordance with computed reference brightness levels, successfully minimizing these undesirable effects.
The second patent, titled "Dynamic Convergence Control Apparatus for Shadow Mask CRT Displays," provides a solution for precise convergence compensation. This apparatus utilizes a combination of coarse analog compensation and fine digital adjustments via programmable read-only memories. By summing both compensation methods, Dusard's invention ensures superior convergence in CRT displays, significantly enhancing image fidelity.
Career Highlights
Dusard has spent a significant part of his career at Sperry Corporation, where he contributed his expertise in electronic display systems. His work has played a vital role in advancing CRT technology, which was foundational for many display applications in the industry.
Collaborations
Throughout his career, Christopher has worked alongside talented professionals such as Thomas W. Spilsbury and Karl L. Chase. These collaborations have fostered innovation and brought about advancements in CRT display technology, reflecting a team-oriented approach to problem-solving and invention.
Conclusion
Christopher R. Dusard is a pivotal figure in the realm of cathode ray tube technology, known for his inventive solutions to common display issues. His contributions not only enhance the user experience but also pave the way for future innovations in display technology. His work at Sperry Corporation, combined with his collaborations and patent achievements, marks him as a significant contributor to advancements in this field.