Mitsuru Sakai

Title: Innovations of Mitsuru Sakai

Introduction

Mitsuru Sakai is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of optical disc technology, holding 2 patents that showcase his innovative spirit and technical expertise.

Latest Patents

One of his latest patents is the "Phase Error Detection Apparatus." This invention is designed to perform offset correction of a tracking error signal accurately, even in the presence of defects or non-recorded positions on an optical disc. The apparatus includes a phase difference detection circuit that receives two sequences of digital signals, performs phase comparison, and outputs a phase comparison result along with a completion signal. An offset control circuit then adds an offset correction amount to the phase comparison result, ensuring accurate tracking.

Another significant patent is the "Optical Disc Recording/Reproducing Apparatus." This invention aims to reduce chip size through high-miniaturization processes while enhancing detection accuracy. The apparatus digitizes a signal obtained from a reproduced signal detected by an optical pickup. It performs peak and bottom detection in the header region, allowing for the calculation of amplitude differences that are outputted as off-track error signals.

Career Highlights

Mitsuru Sakai is currently employed at Panasonic Corporation, where he continues to innovate and develop advanced technologies in optical disc systems. His work has contributed to the enhancement of recording and reproducing technologies, making them more efficient and reliable.

Collaborations

He has collaborated with notable coworkers, including Yoshihiro Kanda and Takashige Hiratsuka, who have also contributed to advancements in the field.

Conclusion

Mitsuru Sakai's contributions to optical disc technology through his patents reflect his dedication to innovation and excellence. His work at Panasonic Corporation continues to influence the industry positively.