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. 24, 2019
Filed:
Apr. 24, 2018
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Donghyuk Lim, Seoul, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, Gyeonggi-do, KR;
Abstract
A data recovery circuit adjusts skew between a first and second clock signals when a signal level of recovered data changes relative to first reference level between a first timing of the first clock signal and a second timing of the second clock signal. Prior to adjusting the skew, a first signal level of the recovered data at the first timing is compared to a second and/or a third reference level. A second signal level at the second timing is compared to the second and/or the third reference level. The skew is adjusted based on a first sign of an error of the first signal level relative to one of the second and third reference levels. The first sign is opposite to a second sign of an error of the second signal level relative to another one of the second and third reference levels.