James K Mathewes, Jr

Title: Innovations of James K Mathewes, Jr.

Introduction

James K Mathewes, Jr. is a notable inventor based in Northborough, MA (US). He has made significant contributions to the field of integrated circuits and fault insertion technology. With a total of three patents to his name, Mathewes has demonstrated a commitment to advancing technology in his area of expertise.

Latest Patents

One of his latest patents is titled "Transient and intermittent fault insertion." This invention involves fault insertion circuits that are programmable and resident in an integrated circuit (LSI or VLSI). These circuits are designed to insert transient and intermittent fault classes, in addition to a permanent fault class, into functional logic on the integrated circuit. Specific fault types that can be programmed for each fault class include a stuck-open fault and bridging faults, both wired-AND and wired-OR. The programmable fault insertion circuitry interfaces directly or indirectly with a BIT maintenance controller, allowing for the verification of test software and the error detection and recovery circuits of a fault-tolerant system.

Another significant patent is "Control sequencer with dual microprogram counters for microdiagnostics." This invention features a microprogrammed control unit of an information processing system that includes a control sequencer with dual microprogram counters. These counters perform microdiagnostics simultaneously with macroprograms. The microdiagnostics consist of background and operability tests, with background tests interleaved with macroinstruction operations. The hierarchical structure of the microdiagnostics allows the same microprogrammed test module to be used for both types of tests, enhancing efficiency and reliability.

Career Highlights

James K Mathewes, Jr. is currently employed at Raytheon Company, where he continues to innovate and contribute to advancements in technology. His work focuses on improving the reliability and functionality of integrated circuits, which are crucial in various electronic applications.

Collaborations

Throughout his career, Mathewes has collaborated with notable colleagues, including H Frank Howes and Craig A Chancellor. These collaborations have likely contributed to the development of his innovative patents and advancements in the field.

Conclusion

James K Mathewes, Jr. is a distinguished inventor whose work in fault insertion technology and integrated circuits has made a significant impact on the industry. His patents reflect a deep understanding of complex systems and a commitment to enhancing technological reliability.