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:
Jul. 02, 2024
Filed:
Apr. 07, 2022
Yokogawa Electric Corporation, Tokyo, JP;
Yokogawa Test & Measurement Corporation, Tokyo, JP;
Akira Takikawa, Hachioji, JP;
Shoichi Aoki, Hachioji, JP;
Katsushi Ota, Hachioji, JP;
Haruyoshi Uchiyama, Hachioji, JP;
Yokogawa Electric Corporation, Tokyo, JP;
Yokogawa Test & Measurement Corporation, Tokyo, JP;
Abstract
An optical pulse tester includes an optical divider configured to cause a return light to divide into first divided light and second divided light, a first optical receiver configured to receive the first divided light and output a first optical receiver signal, a second optical receiver configured to receive the second divided light and output a second optical receiver signal, and a signal processor configured to obtain a waveform indicating an intensity distribution of the return light in a longitudinal direction of the optical fiber by performing level conversion of the first optical receiver signal and the second optical receiver signal on the basis of a divided ratio of the optical divider and optical receiver sensitivities of the first optical receiver and the second optical receiver and synthesizing the first optical receiver signal and the second optical receiver signal which have been subjected to the level conversion.