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. 18, 2007
Filed:
May. 26, 2004
Sung-bum Park, Suwon-si, KR;
Seong-taek Hwang, Pyeongtaek-si, KR;
In-kwon Kang, Seoul, KR;
Samsung Electronics Co., Ltd., Mae Tan-Dong, Yeongtong-Gu, Suwon-Si, Gyeonggi-Do, Korea, KR;
Abstract
Disclosure is a wavelength division multiplexed-passive optical network having a bus structure capable of connecting one central office to a plurality of remote nodes through one optical fiber. The wavelength division multiplexed-passive optical network (WDM-PON) having a bus structure includes a central office for downwardly transferring downstream optical signals having different wavelengths through a feeder fiber and for receiving upstream optical signals upwardly transferred through the feeder fiber; a plurality of remote nodes including at least a first remote node connected to the central office through the feeder fiber and a second remote node connected to the first remote node through the feeder fiber, dropping optical signals having corresponding wavelengths from among downwardly-transferred optical signals from the central office to at least one subscriber unit connected to each of the remote nodes, and adding the upstream optical signals, which are upwardly transferred from each subscriber unit, so as to upwardly transfer the upstream optical signals to the central office; and at least one subscriber unit for receiving the optical signals having the corresponding wavelengths dropped from each of the remote nodes and for upwardly transferring the upstream optical signals having different wavelengths through each of the remote nodes.