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. 17, 2009
Filed:
Apr. 20, 2005
Jonathan Young, Newburyport, MA (US);
Jonathan Young, Newburyport, MA (US);
MagiQ Technologies, Inc., New York, NY (US);
Abstract
In a quantum key distribution (QKD) system, a method of autocalibrating the gating of a single-photon detector (SPD) unit is disclosed. The method includes exchanging photon signals (P, P) to establish a bit-error rate (BER). The method also includes performing a detector gate signal timing scan () that varies the signal arrival time (T) to establish an optimum arrival time (T) corresponding to an optimum (e.g., minimum) BER. Detector gate signal timing dithering is then performed (). This involves varying the detector gate signal arrival times about the optimum arrival time to ensure that the QKD system operates at or near an optimum BER.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile