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:
Oct. 19, 2021
Filed:
Nov. 18, 2020
SK Hynix Inc., Icheon, KR;
Seoul National University R&db Foundation, Seoul, KR;
Kwanseo Park, Seoul, KR;
Deog-Kyoon Jeong, Seoul, KR;
SK hynix Inc., Icheon, KR;
Seoul National University R&DB Foundation, Seoul, KR;
Abstract
A clock and data recovery (CDR) device includes a data sampler configured to output a data signal by sampling an input signal according to a first clock signal; an edge sampler configured to output an edge signal by sampling the input signal according to a second clock signal, the second clock signal having substantially the same frequency as the first clock signal and having substantially an opposite phase to the first clock signal; an error detection circuit configured to identify a plurality of patterns based on the data signal and the edged signal and generate an error signal according to occurrence frequencies of the identified plurality of patterns; and an oscillation control circuit configured to generate a first oscillation control signal to control an oscillator generating the first and second clock signal according to the error signal.