Company Filing History:
Years Active: 1997-1998
Title: Russell Lee Marrash: Innovator in Arbitration Systems
Introduction
Russell Lee Marrash is a notable inventor based in Irvine, CA (US). He has made significant contributions to the field of arbitration systems, holding a total of 2 patents. His work focuses on enhancing the efficiency and reliability of system control modules.
Latest Patents
Marrash's latest patents include an "Arbitration system for bus requestors with deadlock prevention." This innovative system regulates access to a common system bus through an arbitration logic system. It utilizes a state machine to toggle access priority between multiple resource modules, effectively preventing deadlock contention. The system ensures that no module is starved or denied access, even when all resource modules are competing for bus access. Additionally, it allows retrying modules to request the bus at a temporarily higher priority while limiting the number of retries for any given module.
Another significant patent is "Dual coupled partitionable networks providing arbitration logic for." This invention connects two partitioned systems via bus exchange modules linked to common busses. Each system bus shares multiple requestors, and an arbitration logic unit manages bus access priority based on existing conditions. The design guarantees equitable access to each system bus, preventing any particular requestor from being locked out. Deadlock and starvation are avoided by assigning normal top priority to one requestor while rotating secondary priorities among others.
Career Highlights
Marrash is currently employed at Unisys Corporation, where he continues to develop innovative solutions in system control and arbitration logic. His expertise in this area has positioned him as a valuable asset to his team and the company.
Collaborations
Throughout his career, Marrash has collaborated with notable colleagues, including David M Kalish and Gary C Whitlock. These partnerships have contributed to the advancement of his projects and the overall success of their initiatives.
Conclusion
Russell Lee Marrash is a distinguished inventor whose work in arbitration systems has made a significant impact in the field. His innovative patents reflect his commitment to enhancing system efficiency and reliability.