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:
May. 24, 2022
Filed:
May. 28, 2019
Sumitomo Electric Industries, Ltd., Osaka, JP;
Chonde Tei, Utsunomiya, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Abstract
This method includes a reference optical fiber transmission loss measurement step for measuring a reference optical fiber transmission loss measurement value, a difference value calculation step for subtracting the transmission loss reference value from the reference optical fiber transmission loss measurement value and calculating a transmission loss difference value, and a measured-optical-fiber measurement step for measuring the transmission loss of an optical fiber to be measured, the reference optical fiber transmission loss measurement step being repeatedly performed, a transmission loss difference value being calculated by performing the difference value calculation step each time a reference optical fiber transmission loss measurement value is obtained, a correction value being calculated on the basis of a plurality of transmission loss difference values, the measurement value obtained in the measured-optical-fiber measurement step being corrected using the correction value, and the transmission loss value of the optical fiber to be measured being determined.