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:
Sep. 17, 2019
Filed:
Sep. 24, 2018
Fujitsu Optical Components Limited, Kawasaki-shi, Kanagawa, JP;
Kiyotoshi Noheji, Kawasaki, JP;
Masato Nishihara, Kawasaki, JP;
FUJITSU OPTICAL COMPONENTS LIMITED, Kawasaki, JP;
Abstract
An optical transmitter includes: a light source; a wavelength detecting unit configured to detect a wavelength of light emitted from the light source; a wavelength difference information generating unit configured to generate wavelength difference information representing a wavelength difference between a predetermined reference wavelength and a wavelength of the light detected by the wavelength detecting unit; a subcarrier count determination unit configured to determine a number of subcarriers to be used, based on the wavelength difference indicated by the wavelength difference information; a multi-valued level determination unit configured to determine, for each of the subcarriers, a multi-valued level which is a number of bits transmitted by a corresponding subcarrier of the subcarriers; a modulated signal generating unit configured to generate a modulated signal by modulating the subcarriers such that each of the subcarriers has the determined multi-valued level.