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:
Feb. 23, 2016
Filed:
Jun. 18, 2012
Applicant:
Andrew Lord, London, GB;
Inventor:
Andrew Lord, London, GB;
Assignee:
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 14/00 (2006.01); H04Q 11/00 (2006.01); H04J 9/00 (2006.01); H04J 14/02 (2006.01);
U.S. Cl.
CPC ...
H04Q 11/0005 (2013.01); H04J 9/00 (2013.01); H04J 14/02 (2013.01);
Abstract
A communications network wherein first and second optical signals can be launched into an optical fiber in respective first and second regions of a transmission window such that controllable filters can be used to selectively recover the first and second optical signals. This partitioning of the transmission window allows two incompatible optical signals to coexist in the same optical fiber.