Mark N Howard

Title: Mark N Howard: Innovator in Cache Coherency Protocols

Introduction

Mark N Howard is a notable inventor based in Issaquah, WA (US). He has made significant contributions to the field of computer systems, particularly in the area of cache coherency protocols. His innovative work has led to the development of a patent that enhances the efficiency of multi-processor systems.

Latest Patents

Mark N Howard holds a patent for a "Cache coherency protocol for multi-processor computer system." This protocol provides mechanisms for managing read/write, read-only, and transitional data states. It also includes a memory directory in main memory that indicates these states. The transitional data state is particularly important as it occurs when a processor requests a data block from main memory that is currently in another processor's cache. During this pending request, all subsequent read requests for the same data block are inhibited until the first request is completed. Additionally, the memory directory contains a field that identifies the processor that owns the data block, which is crucial for determining the location of requested owned data.

Career Highlights

Mark N Howard is associated with Digital Equipment Company, where he has contributed to various projects and innovations. His work has been instrumental in advancing the capabilities of multi-processor systems.

Collaborations

Some of his notable coworkers include Darrel D Donaldson and David A Orbits. Their collaboration has likely contributed to the success of the projects they have worked on together.

Conclusion

Mark N Howard's contributions to cache coherency protocols have had a lasting impact on the efficiency of multi-processor computer systems. His innovative spirit and dedication to advancing technology continue to inspire others in the field.