Location History:
- Yokohama, JP (1991 - 1992)
- Kawasaki, JP (1998 - 2000)
- Kanagawa, JP (2003)
Company Filing History:
Years Active: 1991-2003
Title: Fumihiro Ikawa: Innovator in Optical Communication Technology
Introduction
Fumihiro Ikawa is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of optical communication technology, holding a total of 7 patents. His work focuses on enhancing the efficiency and reliability of communication networks.
Latest Patents
Ikawa's latest patents include a terminal apparatus and a device for detecting mismatches in work/protection line bridging functions within synchronous communication networks. One of his notable inventions involves an optical receiver unit that connects to both a work optical line and a protection optical line. This device converts optical signals into electrical signals, extracting only the overhead of the signal. The bytes within the overhead are then demultiplexed, allowing for effective data transfer to both an APS processing unit and a mismatching judgment unit. The mismatching judgment unit assesses whether specific parameters are set in the received byte and compares the modes of the opposite and own stations to detect any mismatches. If a mismatch is identified, the system takes corrective actions to resolve the issue.
Another significant patent involves an optical transmission system that incorporates a protection system alongside multiple working systems. In the event of a malfunction in the protection system, a line alarm indication signal (LINE AIS) is transmitted to terminal equipment on the reception side. This signal activates a switch control circuit, enabling the terminal equipment to communicate failure signals and alarm indications effectively.
Career Highlights
Fumihiro Ikawa is currently employed at Fujitsu Corporation, where he continues to innovate in the field of optical communication. His work has been instrumental in developing systems that enhance the reliability and efficiency of communication networks.
Collaborations
Ikawa has collaborated with notable colleagues, including Hisashi Taketomi and Hatsumi Iino, contributing to various projects that advance optical communication technologies.
Conclusion
Fumihiro Ikawa's contributions to optical communication technology have significantly impacted the industry. His innovative patents and collaborative efforts continue to shape the future of communication networks.