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.

Date of Patent:
Nov. 24, 2015

Filed:

Sep. 26, 2013
Applicant:

Electronics and Telecommunications Research Institute, Daejeon-si, KR;

Inventors:

Dong-Soo Lee, Seoul, KR;

Sung-Chang Kim, Gwangju-si, KR;

Geun-Yong Kim, Gwangju-si, KR;

Hark Yoo, Gwangju-si, KR;

Young-Suk Lee, Gwangju-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 14/02 (2006.01);
U.S. Cl.
CPC ...
H04J 14/025 (2013.01); H04J 14/0252 (2013.01);
Abstract

Provided is an OLT including a wavelength splitter that splits all upstream optical signals with different wavelengths received from at least one ONU according to wavelength, at least one receiver that receive the optical signals split by the wavelength splitter according to wavelength, a wavelength selector that allocates an upstream transmission wavelength of the at least one ONU, and a transmitter that transmits wavelength allocation information allocated by the wavelength selector to the at least one ONU.


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