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:
Sep. 29, 2009
Filed:
May. 10, 2007
Chang-hee Lee, Daejeon, KR;
Sang-mook Lee, Daejeon, KR;
Min-hwan Kim, Daejeon, KR;
Abstract
An optical network system includes a central office (CO) comprising an A-band BLS to be injected into a light source for downstream signals, an A-band BLS coupling device for coupling the A-band BLS, a first wavelength-division multiplexer/demultiplexer connected to the A-band BLS coupling device for multiplexing/demultiplexing, and a plurality of first optical transceivers connected to the first wavelength-division multiplexer/demultiplexer; a remote node (RN) comprising a B-band BLS coupling device and a second wavelength-division multiplexer/demultiplexer connected to the B-band BLS coupling device for multiplexing/demultiplexing, and being connected to the CO through an optical fiber; and a plurality of optical network terminations (ONTs) including a plurality of second optical transceivers connected to the second wavelength-division multiplexer/demultiplexer, wherein either the RN or one of the plurality of ONTs further includes a B-band BLS to be injected to a light source for upstream signals.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile