Company Filing History:
2 out of 3,345 
2 out of 745 Years Active: 1986-1991
Title: Edward P Schan, Jr: Innovator in Multiprocessor Systems
Introduction
Edward P Schan, Jr. is a notable inventor based in Woodridge, IL (US). He holds a total of 4 patents that contribute significantly to the field of multiprocessor computing systems. His innovative approaches have paved the way for advancements in how processors communicate and execute tasks.
Latest Patents
One of his latest patents is a "Multiprocessing method and arrangement," which describes a master-slave multiprocessor system. This system connects a slave processor to a uniprocessor's I/O slot, requiring minimal modifications to the uniprocessor's operating system. The initialization process involves redirecting slave interrupt vectors to a common interrupt handler. This innovative method ensures that if an interrupt occurs or a stack exception is encountered, the process execution is suspended, allowing for a seamless transition back to the master processor.
Another significant patent is the "Multiprocessor computing system featuring shared global control." This invention outlines a multiprocessor system with multiple interconnected stations that cooperate to perform system tasks. Each station includes addressable elements and is mapped into a common address space, allowing for efficient communication and task execution across the system. The addressing method is self-referential, enabling stations to access elements without relying on the intelligence of other stations.
Career Highlights
Edward P Schan, Jr. has had a distinguished career, working with prominent companies such as AT&T Bell Laboratories and American Telephone & Telegraph Company. His experience in these organizations has greatly influenced his innovative contributions to the field of multiprocessor systems.
Collaborations
Throughout his career, Schan has collaborated with notable individuals, including David J Brahm and James M Grinn. These partnerships have fostered an environment of innovation and creativity, leading to the development of groundbreaking technologies.
Conclusion
Edward P Schan, Jr. is a significant figure in the realm of multiprocessor systems, with a proven track record of innovation and collaboration. His contributions continue to impact the field, showcasing the importance of advancements in computing technology.