Company Filing History:
Years Active: 1994-1997
Title: Innovations of Charles F Cassidy
Introduction
Charles F Cassidy is an accomplished inventor based in Northboro, MA (US). He holds three patents that showcase his expertise in memory systems and error detection technologies. His work has significantly contributed to advancements in computer memory systems.
Latest Patents
One of Cassidy's latest patents is for a memory system with dynamically allocatable non-volatile storage. This innovative system features volatile storage for data destined for secondary storage and a smaller intermediate non-volatile storage for a subset of that data. The system utilizes an array of DRAM storage devices integrated with SRAM devices, managed by a mapping logic unit.
Another notable patent is for solid-state disk memory using storage devices with defects. This invention allows a computer system to utilize DRAM memory devices that may have a high level of bad cells. An error detection and correction (EDC) circuit employs combinatorial logic to perform BCH code type error correction, enabling the system to tolerate a certain density of non-functional memory cells while still returning perfect data.
Career Highlights
Throughout his career, Cassidy has worked with prominent companies such as Quantum Corporation and Digital Equipment Corporation. His contributions to these organizations have helped shape the landscape of computer memory technology.
Collaborations
Some of Cassidy's notable coworkers include Paul W Kemp and Donald W Smelser. Their collaborative efforts have further advanced the field of memory systems and error correction technologies.
Conclusion
Charles F Cassidy's innovative patents and career achievements highlight his significant contributions to the field of computer memory systems. His work continues to influence advancements in technology today.