Keith K Yamashiro

Title: Innovations by Keith K Yamashiro

Introduction

Keith K Yamashiro is an accomplished inventor based in Torrance, California. He has made significant contributions to the field of high data rate demodulation through his innovative patent. His work focuses on enhancing the performance and cost-effectiveness of communication systems.

Latest Patents

Keith K Yamashiro holds a patent for "Subsampled carrier recovery for high data rate demodulators." This patent presents a high-performance, low-cost technique for carrier recovery and tracking in high-rate demodulator systems, which operate at speeds greater than 200 Mbps to multi-gigabits per second. The technique involves holding a locally generated carrier in phase-locked synchronism with the incoming modulated carrier. This is achieved through a carrier recovery scheme that detects and subsamples the modulated data using bit synchronizing circuitry. The subsampled data is then analyzed to determine a phase error signal, which is used to address a lookup table of error values stored in memory.

Career Highlights

Keith K Yamashiro has worked at TRW Limited, where he has been able to apply his expertise in communication technologies. His innovative approach has contributed to advancements in the field, particularly in high-speed data transmission.

Collaborations

Some of his notable coworkers include Jack K Basham and Pascal G Finkenbeiner. Their collaboration has likely fostered an environment of innovation and creativity, leading to significant advancements in their projects.

Conclusion

Keith K Yamashiro's contributions to high data rate demodulation through his patent demonstrate his commitment to innovation in communication technology. His work continues to influence the industry and pave the way for future advancements.