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. 28, 2017
Filed:
Oct. 29, 2013
Nec Corporation, Minato-ku, Tokyo, JP;
Ken-ichiro Yoshino, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
[Problem] It is to provide an optical receiving device, a control method and device of a photon detector, and a dark count evaluation method of the photon detector that make it possible to perform a dark count evaluation with the photon detector performing a receiving operation. [Solution] It is to include a Z pulse information detection unitand a control unitselectively extracting outputs of photon detectors PDand PDto a transmission light pulse with light intensity substantially equal to zero included in a transmission light pulse train and a dark count evaluation unitevaluating dark counts of the photon detectors based on photon detection counts indicated by the extracted outputs.