Takayuki Ohashi

Title: Takayuki Ohashi: Innovator in PLL Synthesizer Circuit Technology

Introduction

Takayuki Ohashi is a notable inventor based in Ora-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 creation of a patent that enhances frequency change capabilities in electronic devices.

Latest Patents

Ohashi holds a patent for a PLL synthesizer circuit. This invention focuses on controlling the voltage-controlled oscillator (VCO) through a sub-charge pump circuit. The technology determines whether the difference in dividing data before and after a 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 adjustments to the oscillation frequency of the VCO, enabling rapid frequency changes. 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

Ohashi is associated with Sanyo Electric Co., Ltd., where he has contributed to various projects and innovations. His work in synthesizer circuits has positioned him as a key figure in the electronics industry.

Collaborations

Ohashi has collaborated with notable coworkers, including Toshiyuki Ozawa and Kazuhiro Kimura. Their combined expertise has further advanced the development of innovative technologies within their field.

Conclusion

Takayuki Ohashi's contributions to the field of electronics, particularly through his PLL synthesizer circuit patent, demonstrate his innovative spirit and technical expertise. His work continues to influence advancements in synthesizer technology and frequency control.