The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 21, 2025
Filed:
Jul. 09, 2020
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
An object of the present invention is to provide an optical network system with high electric power efficiency, an operation method thereof, and an optical line terminal device capable of realizing the same. An optical network system () according to the present invention is a bus wiring type optical network system and includes an optical line terminal device () which transmits optical signals (Ls), an optical multiplexer/demultiplexer circuit () which inputs some of the optical signals (Ls) to an optical bus core wire (), and a photoelectric conversion unit () which converts the other of the optical signals (Ls) into electric power. The optical network system () can effectively utilize the electric power by reusing the electric power wasted in a port (Tf) of an optical fiber coupler.