This inventor holds 12 USPTO granted patents. Top assignees: Unisys Corporation, Sperry Corporation. Active years: 1985-2005.
Company Filing History:
Years Active: 1985-2005
Title: The Innovations of Donald W. Mackenthun
Introduction
Donald W. Mackenthun is a notable inventor based in Fridley, Minnesota, with a remarkable portfolio of 12 patents. His work primarily focuses on enhancing data processing systems, particularly in the realm of cache memory systems. Mackenthun's innovative approaches have significantly contributed to the efficiency and performance of computing technologies.
Latest Patents
One of Mackenthun's latest patents is titled "Method for avoiding delays during snoop requests." This invention describes a method and apparatus designed to improve the efficiency of a data processing system that employs a multiple-level cache memory system. The enhancements result from optimizing the response to SNOOP requests by providing separate and independent paths to the level two cache and tag memories. This allows SNOOP requests to directly access the tag memories without referencing the cache memory. Additionally, SNOOP requests are prioritized over local processor data requests, which, while potentially slowing down the local processor, reduces wait times for remote processors and improves overall system performance.
Another significant patent is the "Method and apparatus for parallel store-in second level caching." This invention addresses the architecture of dual multi-processing systems, where each processor has a store in first-level write-through cache to a second-level cache. The design includes a shared third-level memory, with first-level and second-level caches being globally addressable. The coherency scheme implemented ensures that each second-level cache has indicators for cache lines, showing their validity and modification status. This system allows for efficient management of cache resources, particularly during maintenance or dynamic partitioning.
Career Highlights
Throughout his career, Donald W. Mackenthun has worked with prominent companies such as Unisys Corporation and Sperry Corporation. His contributions to these organizations have been instrumental in advancing their technological capabilities and product offerings.
Collaborations
Mackenthun has collaborated with notable colleagues, including Mitchell A. Bauman and Donald C. Englin. These partnerships have fostered a collaborative environment that has led to innovative solutions in the field of data processing.
Conclusion
Donald W. Mackenthun's contributions to the field of data processing through his patents and collaborations highlight his significant impact on technology. His innovative methods continue to influence the efficiency of computing systems today.