A Richard Zacher

Title: A Richard Zacher: Innovator in Multiprocessor Systems

Introduction

A Richard Zacher is a notable inventor based in Los Gatos, California. He has made significant contributions to the field of multiprocessor systems, holding a total of four patents. His work focuses on improving the efficiency and reliability of multiprocessor systems, particularly in the context of power management.

Latest Patents

One of Zacher's latest patents is a method to improve tolerance of non-homogeneous power outages. This invention involves multiple processors connected to form a multiprocessor system with inter-processor communication capabilities. Each processor maintains a configuration option register that indicates the resources necessary for the system's operation. In the event of a power-fail signal, the processor executes a shut-down procedure to save its current operating state. This allows the processor to resume operations seamlessly once power is restored. Other processors not receiving the power-fail signal will attempt to reconfigure the system, ensuring continued operation without the affected processor if necessary.

Another significant patent by Zacher is the automatic processor module determination for multiprocessor systems. This invention features a bus controller that grants access to a bus structure for communication among individual processor modules. The bus controller determines the number of processors connected to the bus and manages their access in a round-robin fashion. It checks for responses from the processors to ensure efficient communication and operation within the multiprocessor system.

Career Highlights

Zacher has spent a considerable part of his career at Tandem Computers Incorporated, where he has been instrumental in developing innovative solutions for multiprocessor systems. His expertise in this area has led to advancements that enhance system performance and reliability.

Collaborations

Throughout his career, Zacher has collaborated with notable colleagues, including David J Lilja and Steven W Wierenga. These collaborations have contributed to the development of cutting-edge technologies in the field of computing.

Conclusion

A Richard Zacher's contributions to multiprocessor systems have significantly impacted the technology landscape. His innovative patents demonstrate a commitment to improving system efficiency and reliability. His work continues to influence the field and inspire future advancements in technology.