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. 30, 2014
Filed:
Jul. 23, 2013
Fujitsu Limited, Kawasaki, JP;
Koji Migita, Kawasaki, JP;
Yoshito Koyama, Kawasaki, JP;
Kazumasa Kubotera, Kawasaki, JP;
Yasutaka Kanayama, Inagi, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A semiconductor device includes a delay part configured to assign a delay to an input signal, a phase detector configured to detect a phase of an output signal output from the delay part, a setting part configured to set a stable operations range of the phase of the output signal based on phase information output from the phase detector, and an error detector configured to set an acceptable range corresponding to the stable operations range, determine whether a phase of the output signal falls within the acceptable range, and change the acceptable range based on an extraneous factor of an input signal of the delay part.