Cheng Li

Title: Innovations by Cheng Li: A Look at His Contributions to Graphics Processing

Introduction

Cheng Li is a notable inventor based in Sunnyvale, California, recognized for his significant contributions to the field of graphics processing. With a total of four patents to his name, he has developed innovative techniques that enhance the performance and efficiency of data caches in graphics processors.

Latest Patents

One of Cheng Li's latest patents is focused on a scoreboard for register data cache. This invention discloses techniques related to graphics processor data caches, where the datapath executes instructions that operate on input operands from architectural registers. The data cache circuitry caches architectural register data for the datapath circuitry, while scoreboard circuitry tracks map information indicating whether the architectural register is mapped to an entry of the data cache circuitry. This innovation aims to improve cache performance, reduce power consumption, and minimize area.

Another significant patent involves multi-block cache fetch techniques. This invention relates to multi-block fetches for cache misses, where cache tag circuitry maintains a tag value shared by multiple cache blocks. In response to a cache miss, the system can initiate a fetch request to a next-level cache or memory. The aggregation circuitry aggregates multiple fetch requests for cache blocks sharing the tag value, allowing for a single multi-block fetch operation. This technique enhances performance by reducing fetch bus transactions and power consumption.

Career Highlights

Cheng Li is currently employed at Apple Inc., where he continues to innovate and contribute to advancements in graphics processing technology. His work has been instrumental in developing techniques that improve the efficiency and performance of data handling in modern computing systems.

Collaborations

Cheng has collaborated with talented coworkers, including Winnie W Yeung and Zelin Zhang, who have also contributed to the innovative projects at Apple Inc.

Conclusion

Cheng Li's contributions to the field of graphics processing through his patents demonstrate his commitment to innovation and excellence. His work not only enhances the performance of graphics processors but also sets a foundation for future advancements in the industry.