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. 19, 2017
Filed:
Sep. 10, 2015
Applicant:
Ut-battelle, Llc, Oak Ridge, TN (US);
Inventor:
Bing Qi, Knoxville, TN (US);
Assignee:
UT-Battelle, LLC, Oak Ridge, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/61 (2013.01); H04L 7/00 (2006.01); H04B 10/079 (2013.01); H04B 10/63 (2013.01); H04B 10/64 (2013.01);
U.S. Cl.
CPC ...
H04B 10/6165 (2013.01); H04B 10/0795 (2013.01); H04B 10/63 (2013.01); H04B 10/64 (2013.01); H04L 7/0008 (2013.01); H04L 7/0075 (2013.01);
Abstract
A method and a system for pilot-aided feedforward data recovery are provided. The method and system include a receiver including a strong local oscillator operating in a free running mode independent of a signal light source. The phase relation between the signal light source and the local oscillator source is determined based on quadrature measurements on pilot pulses from the signal light source. Using the above phase relation, information encoded in an incoming signal can be recovered, optionally for use in communication with classical coherent communication protocols and quantum communication protocols.