Hiroyoshi Kaneyama

Title: Hiroyoshi Kaneyama: Innovator in PLL Synthesizer Circuit Technology

Introduction

Hiroyoshi Kaneyama is a notable inventor based in Nitta-gun, Japan. He has made significant contributions to the field of electronics, particularly in the development of synthesizer circuits. His innovative work has led to the filing of a patent that showcases his expertise and creativity in this area.

Latest Patents

Hiroyoshi Kaneyama holds a patent for a PLL synthesizer circuit. This invention is designed for frequency change, where the voltage-controlled oscillator (VCO) is managed through a sub-charge pump circuit. The circuit determines whether the difference in dividing data before and after the frequency change is within a predetermined range. If the difference exceeds this range, the loop filter is forcibly charged based on the proportional difference in the dividing data. This mechanism allows for swift control of the VCO's oscillation frequency, enabling rapid changes in frequency. Additionally, while the frequency change circuit is in operation, the time constant of the loop filter is set to a small value, facilitating quick frequency adjustments.

Career Highlights

Hiroyoshi Kaneyama is currently employed at Sanyo Electric Co., Ltd., where he continues to innovate and contribute to advancements in electronic technologies. His work at Sanyo has allowed him to collaborate with other talented engineers and researchers in the field.

Collaborations

Some of Hiroyoshi Kaneyama's coworkers include Toshiyuki Ozawa and Kazuhiro Kimura. Their collaborative efforts have likely contributed to the success of various projects within the company.

Conclusion

Hiroyoshi Kaneyama is a distinguished inventor whose work in PLL synthesizer circuits has made a significant impact in the electronics industry. His innovative approach and dedication to his craft continue to inspire advancements in technology.