Norio Yanagi

Title: Norio Yanagi: Innovator in Optical Communication Technologies

Introduction

Norio Yanagi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical communication technologies, holding a total of 2 patents. His work focuses on enhancing the efficiency and functionality of coding apparatuses used in submarine cable systems.

Latest Patents

Yanagi's latest patents include a dummy bit elimination device and a coding apparatus for FEC (Forward Error Correction) code words. The dummy bit elimination device is designed to eliminate only dummy bits from FEC code, ensuring that the coding apparatus operates efficiently in submarine cable systems. This device features a converter that processes the outputs from the coder before they are fed into a multiplexer.

Another notable patent is the circuit for an optical WDM (Wavelength Division Multiplexing) apparatus. This optical circuit incorporates a variable-wavelength optical notch filter that reflects a specific notch wavelength while allowing other optical signals to pass through. The control signal detected from the optical WDM signals helps in adjusting the notch wavelength, optimizing the signal level of the reflected optical signal.

Career Highlights

Norio Yanagi is associated with NEC Corporation, a leading company in the field of information technology and electronics. His work at NEC has allowed him to develop innovative solutions that address the challenges in optical communication.

Collaborations

Throughout his career, Yanagi has collaborated with notable colleagues, including Takanori Fujisawa and Kenichi Nomura. These collaborations have contributed to the advancement of technologies in their respective fields.

Conclusion

Norio Yanagi's contributions to optical communication technologies through his patents demonstrate his innovative spirit and commitment to advancing the industry. His work continues to influence the development of efficient communication systems.