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:
May. 15, 2018
Filed:
Jun. 02, 2017
Applicant:
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Inventor:
Yasufumi Sakai, Fuchu, JP;
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 25/03 (2006.01); H03L 7/08 (2006.01); H03K 3/356 (2006.01); H03K 3/037 (2006.01); H03K 5/156 (2006.01);
U.S. Cl.
CPC ...
H04L 25/03057 (2013.01); H03K 3/037 (2013.01); H03K 3/356017 (2013.01); H03K 5/1565 (2013.01); H03L 7/0807 (2013.01);
Abstract
A decision feedback equalizer includes a comparator configured to output a constant voltage in a reset period and to output a differential voltage corresponding to differential input signals in an evaluation period, a latch circuit configured to hold the differential voltage in the evaluation period, and an adjuster configured to adjust a logical threshold of the latch circuit closer to the output voltage in the reset period.