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:
Dec. 11, 2012
Filed:
Dec. 27, 2007
Optical access network, remote unit, optical communication method, and optical communication program
Takumi Nomura, Tokyo, JP;
Hiromi Ueda, Tokyo, JP;
Takashi Kuriyama, Kanagawa, JP;
Toshinori Tsuboi, Tokyo, JP;
Hiroyuki Kasai, Tokyo, JP;
Hirokazu Kobayashi, Kanagawa, JP;
Takumi Nomura, Tokyo, JP;
Hiromi Ueda, Tokyo, JP;
Takashi Kuriyama, Kanagawa, JP;
Toshinori Tsuboi, Tokyo, JP;
Hiroyuki Kasai, Tokyo, JP;
Hirokazu Kobayashi, Kanagawa, JP;
NEC Communication Systems, Ltd., Tokyo, JP;
Abstract
The present invention is to provide an optical access network in which a remote unit receives an optical burst signal. A central unit (OLT) transmits a DC-balanced optical continuous signal including packets having identification information for identifying each remote unit (ONU) to an optical switching module (OSM). The optical switching module (OSM) receives the DC-balanced optical continuous signal from the central unit (OLT), optically switches the packets based on the identification information, and transmits a DC-balanced optical burst signal including the packets to the remote unit (ONU). The remote unit (ONU) receives the DC-balanced optical burst signal and acquires the packets transmitted to the remote unit (ONU).