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. 30, 2008
Filed:
Nov. 22, 2005
Moon Seop Lee, Daejeon, KR;
Byung Tak Lee, Gyeonggi-do, KR;
Hyun Seo Kang, Gwangjoo, KR;
Jai Sang Koh, Gwangjoo, KR;
Moon Seop Lee, Daejeon, KR;
Byung Tak Lee, Gyeonggi-do, KR;
Hyun Seo Kang, Gwangjoo, KR;
Jai Sang Koh, Gwangjoo, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided are a passive optical network system and a method of transmitting a broadcasting signal in the same system. A central office (CO) generates a broadcasting signal and a downstream optical data signal using a coding method guaranteeing a run-length, multiplexes the downstream optical data signal and the broadcasting signal, and transmits the multiplexed downstream optical data signal and broadcasting signal. A remote node (RN) transmits the multiplexed downstream optical data signal and broadcasting signal received from the CO to one or more optical network units (ONUs). A gain medium, which is located on a transmission line between the CO and the RN, amplifies the broadcasting signal using the downstream optical data signal as a pump light source. Accordingly, a high gain can be obtained by amplifying the broadcasting signal using the gain medium located on the transmission line without a separate pump light source.