John E Larson

Title: John E Larson: Innovator in Cache Technology

Introduction

John E Larson is a notable inventor based in Eagan, MN (US). He has made significant contributions to the field of computer technology, particularly in cache memory systems. His innovative approach has led to the development of a unique patent that enhances the efficiency of multiprocessor systems.

Latest Patents

One of Larson's key patents is titled "Dual cache RAM for rapid invalidation." This invention introduces a cache buffer for multiprocessor systems that utilizes two RAMs to store validity bits. The use of these RAMs significantly reduces the chip area required to implement the validity buffer, while also minimizing interconnection foil and thereby reducing propagation time. The design includes an initial clear state written into all memory locations of both RAMs. One RAM serves as the active validity bit RAM, while the other acts as a standby. Upon receiving a fast invalidate command, the standby RAM is switched to active status, and the validity bits of the previously active RAM are cleared in sequential write cycles after it transitions to standby.

Career Highlights

John E Larson is currently employed at Unisys Corporation, where he continues to work on innovative technologies. His expertise in cache memory systems has positioned him as a valuable asset to the company.

Collaborations

Throughout his career, Larson has collaborated with talented individuals such as Michael Danilenko and Clarence W DeKarske. These partnerships have contributed to the advancement of technology in their respective fields.

Conclusion

John E Larson's contributions to cache technology exemplify the spirit of innovation in the tech industry. His patent for dual cache RAM showcases his ability to solve complex problems in multiprocessor systems. Larson's work continues to influence advancements in computer technology, making him a noteworthy figure in the field.