Company Filing History:
Years Active: 2008-2012
Title: The Innovations of Ryosuke Nishino
Introduction
Ryosuke Nishino is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of optical communication, holding a total of 9 patents. His work focuses on developing systems that enhance the efficiency and reliability of optical networks.
Latest Patents
One of his latest patents is an optical access system designed to avoid cutoffs or interruptions in periodically transmitted signals during ranging time. This system employs two methods to prevent signal cutoffs. The first method involves stopping periodic transmit signals at the transmitter during the ranging period and transmitting all signals together once ranging ends. The second method clusters multiple periodic transmit signals at the transmitter and sends them in sets, which are then disassembled at the receiver. This innovative approach ensures uninterrupted signal transmission even during ranging operations.
Another notable patent is related to a passive optical network (PON) system with wavelength division multiplexing (WDM). In this system, each optical network unit (ONU) negotiates with an optical line terminal (OLT) to automatically acquire a usable wavelength. The OLT includes multiple light sources for downstream communication, while the ONU employs a wavelength variable filter and light source for upstream communication. This negotiation process allows for efficient wavelength assignment and communication between the OLT and ONU.
Career Highlights
Ryosuke Nishino has worked with notable companies such as Hitachi, Ltd. and Hitachi Communication Technologies, Ltd. His experience in these organizations has contributed to his expertise in optical communication technologies.
Collaborations
Throughout his career, Nishino has collaborated with esteemed colleagues, including Tohru Kazawa and Kenichi Sakamoto. These partnerships have fostered innovation and advancement in the field of optical systems.
Conclusion
Ryosuke Nishino's contributions to optical communication through his patents and collaborations highlight his role as a leading inventor in the industry. His innovative solutions continue to shape the future of optical access systems and passive optical networks.