Akio Terada

Title: Akio Terada: Innovator in Optical Disc Technology

Introduction

Akio Terada is a notable inventor based in Kodaira, Japan. He has made significant contributions to the field of optical disc technology, holding a total of 2 patents. His work focuses on enhancing the performance and efficiency of optical disc apparatuses.

Latest Patents

One of Akio Terada's latest patents is the "Level shift circuit of optical disc apparatus." This invention involves a circuit designed to shift the level of a signal inputted in the focusing or tracking servo circuit, which is equipped with an automatic gain control device. The circuit features multiple variable gain amplifiers arranged before detecting a focusing or tracking error, forming the corresponding error signal. It includes a gain set apparatus that selects one of several gains of the gain amplifiers based on the detected level range of the light quantity reflected from the optical disc.

Another significant patent is the "Servo system for positioning and driving a movable member using two." This invention pertains to a servo system that positions and drives a movable member, such as a pickup head in an optical reading system. A sinewave signal is generated by a position detector in response to the movement of the movable member. A first reference signal is utilized alongside the sinewave signal to position the movable member, while a second reference signal is used with a modified signal generated by differentiating and rectifying the sinewave signal to drive the movable member.

Career Highlights

Akio Terada is currently employed at Nakamichi Corporation, where he continues to innovate in the field of optical technology. His work has been instrumental in advancing the capabilities of optical disc systems.

Collaborations

Throughout his career, Akio has collaborated with notable colleagues such as Gohji Uchikoshi and Makoto Yamamoto. Their combined expertise has contributed to the development of cutting-edge technologies in the optical disc industry.

Conclusion

Akio Terada's contributions to optical disc technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in optical systems, showcasing the importance of innovation in technology.