Joseph James Ervin is a notable inventor based in Stow, MA (US). He has made significant contributions to the field of technology, particularly in the area of hot-plug devices. With a total of 9 patents to his name, Ervin has demonstrated a commitment to innovation and advancement in his field.

Latest Patents

One of his latest patents is titled "Hot-plug link apparatus and method using a direction line to indicate presence of a hot-plug device." This invention includes an apparatus for linking a hot-plug device to a host, featuring a slave interface circuit for connection to the host and a master interface circuit for connection to the hot-plug device. The design incorporates direction, data, and clock lines that link the master and slave interface circuits. A control logic circuit is employed to detect a Presence Detect signal on the direction line. The method outlined in this patent describes how to determine a connection between a host and a hot-plug device by asserting a direction signal on a direction line to control the flow of data. Additionally, it includes toggling the direction signal to indicate the presence of the hot-plug device and signaling a disconnect after a period of inactivity.

Another significant patent is the "Method and apparatus for constructing wired-and bus systems." This invention partitions a large multimaster IC bus system into smaller bus segments. The segments are interconnected by bridges that isolate them and direct selected transactions and commands. The bridge is designed to handle bus segment error conditions, particularly addressing a hang on the Port B bus by attempting to prompt any device on the bus segment to respond after a predetermined period.

Career Highlights

Joseph James Ervin is currently associated with Sun Microsystems, Inc., where he continues to innovate and contribute to technological advancements. His work has had a lasting impact on the industry, particularly in the development of systems that enhance connectivity and functionality.

Collaborations

Throughout his career, Ervin has collaborated with notable colleagues, including Jorge E Lach and Sandip P Barua. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Joseph James Ervin is a distinguished inventor whose work in hot-plug technology and bus systems has significantly influenced the field. His numerous patents reflect his dedication to innovation and his ability

Profile summary based on public USPTO records.

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