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. 24, 2020
Filed:
Nov. 19, 2018
SK Hynix Inc., Gyeonggi-do, KR;
Dong Hyun Kim, Gyeonggi-do, KR;
Dae Han Kwon, Seoul, KR;
Kwan Su Shon, Gyeonggi-do, KR;
Soon Ku Kang, Gyeonggi-do, KR;
Jung Hyun Shin, Seoul, KR;
Doo Bock Lee, Seoul, KR;
Yo Han Jeong, Gyeonggi-do, KR;
Eun Ji Choi, Gyeonggi-do, KR;
Tae Jin Hwang, Seoul, KR;
SK hynix Inc., Gyeonggi-do, KR;
Abstract
An input/output circuit includes a data buffer group configured to buffer data received through data lines, a data strobe buffer configured to buffer a data strobe signal to output a buffered data strobe clock, a digitally controlled delay line configured to output delay data by controlling skew of the buffered data according to a delay code, a data strobe clock output circuit configured to generate a delay data strobe clock in response to the buffered data strobe clock, a sampler configured to sample the delay data according to the delay data strobe clock to output sampled data, and a de-skew circuit configured to update the delay code according to the sampled data.