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. 10, 2009
Filed:
Feb. 28, 2005
Applicants:
Xiang Liu, Marlboro, NJ (US);
Xing Wei, New Providence, NJ (US);
Assignee:
Alcatel-Lucent USA Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Method and apparatus for demodulating one or more channels of an optical differential phase shift keyed (DPSK) signal with a symbol rate of SR using an athermal optical delay interferometer with a free spectral range (FSR) of 50 GHz/2, and (0.8×SR)<FSR<(1.3×SR), where N=0, 1, 2 . . . .
Liu, Xiang. (2009). Method and apparatus for demodulation of optical differential phase shift keyed signals (U.S. Patent No. 7489874). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7489874
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile