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:
Aug. 15, 2023
Filed:
Jun. 08, 2020
Nec Corporation, Tokyo, JP;
Ryu Kurahashi, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
In order to make a communicable distance in an optical cable of an optical signal which is subjected to amplitude modulation longer, a re-modulation device is provided with: an acquisition unit that acquires, from a first modulation optical signal obtained by performing first amplitude modulation on an optical signal with second data sent from a modulation transmission device to a demodulation reception device, the second data; and a re-modulation unit that, when determining passing of the first modulation optical signal, sends, to the demodulation reception device, a second modulation optical signal obtained by performing second amplitude modulation on the inputted optical signal with the second data.