This inventor holds 3 USPTO granted patents. Top assignees: International Business Machines Corporation, Lockheed Martin Corporation. Active years: 1977-1997.
Company Filing History:
2 out of 166,264 
1 out of 5,316 
Years Active: 1977-1997
Title: The Innovative Contributions of Donald E Wallis
Introduction
Donald E Wallis is a notable inventor based in Marblehead, MA (US). He has made significant contributions to the field of control systems, holding a total of 3 patents. His work focuses on enhancing the efficiency and flexibility of real-time control processes.
Latest Patents
One of Wallis's latest patents is the "Real-time control sequencer with state matrix logic." This invention introduces a high-performance control sequencer that utilizes a unique state matrix logic. It allows for rapid resolution of control processed state transitions and necessary control actions based on detected external events and the current control process state. The micro-instructions of the sequencer present event and state data as inputs to the state matrix logic, which then outputs data to define and initiate the next control process state. This invention provides greater flexibility for reconfiguring event patterns and responses, achieving faster resolution of control process state transitions with a more extensive repertoire of event patterns stored in a smaller memory area compared to prior art.
Another significant patent is the "Distributed control architecture with post and wait logic." This architecture is designed for multiprocessor systems and includes a control processor that executes system supervisory and task management functions. It utilizes a control bus to output execute instruction words containing pointer addresses. The system features subunit processors that execute different types of functions, coordinating their operations through post and wait logic. This allows the control processor to initiate tasks while managing other system functions, enhancing overall efficiency.
Career Highlights
Throughout his career, Wallis has worked with prominent companies such as IBM and Lockheed Martin Corporation. His experience in these organizations has contributed to his expertise in developing innovative control systems.
Collaborations
Wallis has collaborated with notable individuals in the field, including Michael A Sweeney and Charles A Dennis. These collaborations have likely enriched his work and led to further advancements in his inventions.
Conclusion
Donald E Wallis's contributions to the field of control systems through his innovative patents demonstrate his commitment to enhancing technology. His work continues to influence the development of efficient control processes in various applications.