Charles W Evans

Title: Innovations of Charles W. Evans

Introduction

Charles W. Evans is a notable inventor based in Poughkeepsie, NY (US). He has made significant contributions to the field of technology, particularly in processor design and control systems. With a total of 2 patents, his work has had a lasting impact on the industry.

Latest Patents

Evans' latest patents include innovative solutions for processor means and control systems. One of his patents, titled "Store-in-cache processor means for clearing main storage," introduces a method to inhibit a store-in-cache (SIC) from requesting or receiving any line fetch from main storage (MS) when a clear line (CL) command is issued by a CPU. This invention features two CPU modes: an initial storage validation mode and an instruction processing mode, allowing for efficient execution of the CL command during system initialization. In a multiprocessor environment, the system ensures that any conflicting lines are invalidated before completing the CL command, enhancing the reliability of data management.

Another significant patent is the "Control store system with flexible control word selection." This invention utilizes a branch-address translation register (BAXR) to enhance the flexibility of microcode branch selection. The BAXR is loaded by a control word field, and a word selection decoder circuit generates a word selection signal for selecting a control word from a currently accessed branch group. This innovation allows for varying degrees of addressing flexibility, making it a valuable advancement in control systems.

Career Highlights

Charles W. Evans has had a distinguished career at International Business Machines Corporation (IBM). His work has been instrumental in developing advanced technologies that improve processor efficiency and control system flexibility. His contributions have positioned him as a respected figure in the field of technology.

Collaborations

Throughout his career, Evans has collaborated with notable colleagues, including Frederick O. Flusche and Benedicto U. Messina. These partnerships have fostered innovation and have led to the development of groundbreaking technologies.

Conclusion

Charles W. Evans is a prominent inventor whose work has significantly influenced the technology sector. His patents reflect a commitment to innovation and excellence in processor design and control systems. His contributions continue to shape the future of technology.