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. 31, 2021
Filed:
Sep. 24, 2020
Fujitsu Limited, Kawasaki, JP;
Yangyang Fan, Beijing, CN;
Zhenning Tao, Beijing, CN;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
Embodiments of this disclosure provide an apparatus and method for determining coefficients of a fixed equalizer, the fixed equalizer being applicable to performing fixed equalization on an optical communications system, the apparatus including: a first acquiring unit configured to determine coefficients of an adaptive equalizer according to an output signal of the optical communications system; a first transforming unit configured to perform Fourier transform on at least a part of the coefficients of the adaptive equalizer to obtain frequency responses of the at least a part of the coefficients; and a first calculating unit configured to calculate coefficients of the fixed equalizer according to the frequency responses of the at least a part of the coefficients of the adaptive equalizer.