Hiroaki Yatsuda

Title: Hiroaki Yatsuda: Innovator in Analog-to-Digital Conversion Technology

Introduction

Hiroaki Yatsuda is a prominent inventor based in Nagasaki, Japan. He has made significant contributions to the field of analog-to-digital conversion technology. With a total of 4 patents to his name, Yatsuda has demonstrated his expertise and innovation in this specialized area.

Latest Patents

One of Yatsuda's latest patents is an advanced A/D converter. This analog-to-digital converter features a reference circuit designed to generate reference voltages. It includes differential amplifiers and normal phase circuits that sample a normal phase analog input signal. These circuits transfer a comparison voltage, obtained by comparison with a reference voltage generated by the reference circuit, to a first input terminal of one of the differential amplifiers when the input is differential and single-ended. Additionally, reversed phase circuits sample a reversed phase analog input signal and transfer a comparison voltage to a second input terminal of one of the differential amplifiers when the input is differential. When the input is single-ended, these circuits sample a ground level as a reference voltage and supply the reference voltage and comparison voltage to the second input terminal of the differential amplifier.

Another notable patent is a parallel type analog-to-digital conversion circuit, which includes a reference signal generating portion and a comparison amplification portion. This comparison amplification portion consists of multiple amplifiers, input resetting switches, first and second sampling capacitors, and corresponding sampling switches.

Career Highlights

Hiroaki Yatsuda is currently employed at Sony Corporation, where he continues to innovate and develop cutting-edge technologies. His work has significantly impacted the field of electronics, particularly in improving the efficiency and accuracy of analog-to-digital conversion processes.

Collaborations

Yatsuda has collaborated with notable colleagues, including Yasuhide Shimizu and Shigemitsu Murayama. These partnerships have fostered a creative environment that encourages the development of innovative solutions in technology.

Conclusion

Hiroaki Yatsuda is a distinguished inventor whose work in analog-to-digital conversion technology has led to several important patents. His contributions continue to influence the electronics industry, showcasing the importance of innovation in advancing technology.