Tetsuo Saitoh

Title: Tetsuo Saitoh: Innovator in Digital Phase Locked Loop Technology

Introduction

Tetsuo Saitoh is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of digital electronics, particularly in the development of phase locked loop technology. His innovative work has led to the granting of a patent that enhances the functionality of integrated circuit chips.

Latest Patents

Tetsuo Saitoh holds a patent for a "Digital phase locked loop having coarse and fine stepsize variable delay." This invention involves a digital phase locked loop where a coarse stepsize variable delay line and a fine stepsize variable delay line are connected in series. These components receive a reference clock pulse and impart variable delays based on higher significant bits and lower significant bits. The delayed clock pulse is then delivered to a clock tree, which propagates the clock pulse to various parts of an integrated circuit chip. A phase detector is utilized to compare the phase between the reference clock pulse and the delayed clock pulse. Additionally, a delay controller counts the reference clock pulse to produce a count value, which is adjusted according to the output of the phase detector. This innovative design allows for efficient clock pulse propagation through the clock tree.

Career Highlights

Tetsuo Saitoh is associated with NEC Corporation, a leading company in the field of electronics and information technology. His work at NEC has allowed him to focus on advancing digital technologies and contributing to the development of cutting-edge electronic solutions.

Collaborations

Throughout his career, Tetsuo has collaborated with esteemed colleagues such as Koichi Kitamura and Syuji Matsuo. These collaborations have fostered an environment of innovation and have led to the successful development of various technologies in the field.

Conclusion

Tetsuo Saitoh's contributions to digital phase locked loop technology exemplify his innovative spirit and dedication to advancing electronic solutions. His patent and work at NEC Corporation highlight his role as a significant figure in the field of electronics.