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:
Nov. 08, 2016
Filed:
Sep. 16, 2015
SK Hynix Inc., Icheon, KR;
Korea Advanced Institute of Science and Technology, Daejeon, KR;
Yong-Jo Kim, Gwangmyeong, KR;
SeongHwan Cho, Daejeon, KR;
SK HYNIX INC., Icheon, KR;
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, Daejeon, KR;
Abstract
A semiconductor device includes a first variable delay circuit that delays inputted multiphase signals according to a delay control signal, a selection circuit that selects and outputs two signals of signals output from the first variable delay circuit, a second variable delay circuit that delays one of the two signals according to the delay control signal, a phase comparison circuit that compares a phase of a signal outputted by the second variable delay circuit with a phase of the other of the two signals, a filter that updates the delay control signal according to a signal outputted by the phase comparison circuit, and a delay control signal selection circuit that provides the delay control signal to the first variable delay circuit or the second variable delay circuit.