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. 05, 2016
Filed:
Aug. 11, 2015
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Yuuki Ogata, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A receiving circuit includes: a first decision circuit to output boundary data obtained by performing a binary-decision on input data in synchronization with a first clock; a first decision feedback equalizer to output center data obtained by performing equalization and a binary-decision on the input data using a first equalization coefficient in synchronization with a second clock; a phase detection circuit to detect phase information of the input data based on the boundary data and the center data; a phase control circuit to output phase difference information of the center data based on an opening of an eye pattern formed by overlaying data transition patterns; a first phase adjustment circuit to adjust a phase of the first clock based on the phase information; and a second phase adjustment circuit to adjust a phase of the second clock based on the phase information and the phase difference information.