Ken Atsumi

Title: Ken Atsumi: Innovator in Phase Locked Loop Technology

Introduction

Ken Atsumi is an accomplished inventor based in Sapporo, Japan, renowned for his contributions to electronics and communication technologies. With a remarkable portfolio of 12 patents, Atsumi has demonstrated a commitment to advancing the field of phase locked loop circuits and digitally controlled oscillators, making significant impacts in various applications.

Latest Patents

Atsumi's latest innovations include two noteworthy patents: the "Phase Locked Loop Circuit and Phase Locked Loop Method" and the "Digitally Controlled Oscillator and Output Frequency Control Method." The former patent focuses on a phase locked loop circuit that features a loop filter capable of switching between high and low cutoff characteristics. This circuit is designed to intelligently detect irregular gaps in input signals and adjust the loop filter's cut-off characteristics accordingly, ensuring stable performance during phase locking.

His second patent, the "Digitally Controlled Oscillator and Output Frequency Control Method," describes a digitally controlled oscillator that adapts its output frequency based on input data. This innovation includes a determination unit that identifies input data values that may negatively impact phase noise characteristics. To counteract this, an offset unit modifies the input data before it is used to generate the output frequency, enhancing the performance of the oscillator.

Career Highlights

Ken Atsumi's career is notably linked to his work at Fujitsu Corporation, where he has collaborated with other skilled engineers and inventors to further the company's technological advancements. His focus on pioneering techniques in circuit design has positioned him as a leader in his field.

Collaborations

Throughout his career, Atsumi has worked closely with esteemed colleagues, including Hideyuki Matsuura and Yoshito Koyama. These collaborations have fostered an environment of innovation and creativity, allowing them to push the boundaries of electronic design and develop cutting-edge technologies.

Conclusion

Ken Atsumi's contributions to the field of electronics are significant and impactful, with his recent patents showcasing his innovative spirit and technical expertise. As he continues to work at Fujitsu Corporation, his efforts will undoubtedly lead to further advancements in technology, enhancing the quality and performance of electronic systems worldwide.