Stephen J Ciavaglia

Title: The Innovative Mind of Stephen J. Ciavaglia: Pioneering Computer Architecture

Introduction: Stephen J. Ciavaglia, an accomplished inventor based in Nashua, NH, has made significant contributions to the field of computer architecture. With a remarkable portfolio of four patents, Ciavaglia's innovative designs and methods have enhanced the operational efficiency of processing systems.

Latest Patents: Ciavaglia's latest patents demonstrate his keen insight into the intricacies of computer functionality. One notable invention is a **pipelined system that includes a selector for loading condition code**. This method and apparatus allow for improved control of a central processor in response to branch instructions by utilizing two separate, subsequently updated condition codes. The architecture he developed ensures that the condition codes determining the processor state are derived from the execution of prior instructions, enabling a more streamlined processing flow.

Another significant contribution is his **method and apparatus for bus lock during atomic computer operations**. This invention supports a computer system composed of multiple processors that share common memory and data bus structures. Ciavaglia's design allows for atomic operations, wherein a processor performing an atomic operation can prevent memory access interruptions by locking out other processors. The implementation of bus lock request and signal pathways ensures that these atomic operations maintain data integrity, demonstrating his expertise in multi-processor coordination.

Career Highlights: Ciavaglia is affiliated with Hewlett-Packard Company, where his innovative work in computer architecture and processing systems has been recognized and valued. His contributions continue to influence the technological advancements of the company, reinforcing HP's reputation as a leader in innovative computing solutions.

Collaborations: Throughout his career, Stephen J. Ciavaglia has collaborated with esteemed colleagues such as Richard G. Bahr and Barry J. Flahive. Their joint efforts have fostered a collaborative environment that nurtures creativity and drives significant advances in their field.

Conclusion: Stephen J. Ciavaglia's inventive spirit and profound understanding of computer systems embody the essence of innovation in technology. Through his patents, he has paved the way for more efficient computing architectures, significantly impacting the field and setting a benchmark for future developments. His ongoing work at Hewlett-Packard Company and collaborations with talented peers continue to inspire advancements in computer science and engineering.