Shiu K Chan is a notable inventor based in Poughkeepsie, NY (US). He has made significant contributions to the field of computer systems, holding a total of 3 patents. His work focuses on improving memory fetch times and cache management in multiprocessor environments.

Latest Patents

One of his latest patents is a method for shortening memory fetch time relative to memory store time. This innovative method reduces the fetch time in a computer system, ensuring that the memory fetch cycle is shorter than the memory store cycle. Each chip in the system includes at least one dynamic random access memory array (DRAM) and a small high-speed cache static random access memory (SRAM). The memory controller effectively manages the fetch and store states, optimizing the timing signals for accessing and addressing bits in both SRAM and DRAM.

Another significant patent involves cache locking controls in a multiprocessor system. This invention introduces a lock array with bit positions corresponding to each line entry in the cache directory. The lock bit inhibits operations such as castout, replacement, or invalidation of the associated cache line, enhancing the efficiency of cache management. The design allows for simultaneous reset of all lock bits at each checkpoint, ensuring that the status of the cache directory remains undisturbed.

Career Highlights

Shiu K Chan is currently employed at International Business Machines Corporation (IBM), where he continues to innovate in the field of computer technology. His work has had a profound impact on the efficiency and performance of computer systems.

Collaborations

Some of his notable coworkers include John A Gerardi and Bruce L McGilvray, who have collaborated with him on various projects within IBM.

Conclusion

Shiu K Chan's contributions to computer systems through his patents demonstrate his expertise and commitment to innovation. His work continues to influence the development of more efficient computing technologies.