John Chang

Title: The Innovations of John Chang

Introduction

John Chang is an accomplished inventor based in Morton Grove, IL (US). He has made significant contributions to the field of computer systems, particularly in the area of multiprocessor architectures. His innovative work has led to the development of a unique system bus that enhances the efficiency and coherence of data processing in multiprocessor environments.

Latest Patents

John Chang holds a patent for a "System bus for multiprocessor computer system." This invention comprises a system bus apparatus and method for a multi-arm, multiprocessor computer system that includes a main memory and localized buffer cache memories at each processor. The system bus, referred to as SYSBUS, consists of three subparts: a MESSAGE/DATA bus, a REQUEST/GRANT bus, and a BCU bus. The MESSAGE/DATA bus is essential for transferring messages, data, and addresses among devices in the system. The REQUEST/GRANT bus facilitates communication between devices and their respective bus control units (BCUs). The BCU bus connects various BCUs, ensuring efficient data management and coherence.

Career Highlights

Throughout his career, John Chang has demonstrated a commitment to advancing technology in computer systems. His patent reflects a deep understanding of the complexities involved in maintaining cache coherence and data integrity in multiprocessor systems. His work has implications for improving the performance and reliability of computing systems used in various applications.

Collaborations

John has collaborated with notable colleagues, including David H. Albonesi and Brian K. Langendorf. Their combined expertise has contributed to the development of innovative solutions in the field of computer architecture.

Conclusion

John Chang's contributions to the field of multiprocessor computer systems through his patented innovations highlight his role as a significant inventor. His work continues to influence advancements in technology and computing efficiency.