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. 09, 2012
Filed:
Dec. 28, 2007
Kyung-hoon Kim, Kyoungki-do, KR;
Jong-ho Kang, Kyoungki-do, KR;
Yong-ki Kim, Kyoungki-do, KR;
Dae-han Kwon, Kyoungki-do, KR;
Sang-yeon Byeon, Kyoungki-do, KR;
Kyung-Hoon Kim, Kyoungki-do, KR;
Jong-Ho Kang, Kyoungki-do, KR;
Yong-Ki Kim, Kyoungki-do, KR;
Dae-Han Kwon, Kyoungki-do, KR;
Sang-Yeon Byeon, Kyoungki-do, KR;
Hynix Semiconductor Inc., , KR;
Abstract
A clock data recovery (CDR) circuit occupies a small area required in a high-integration semiconductor device, electronic device and system and is easy in design modification. The CDR circuit includes a digital filter configured to filter phase comparison result signals received during predetermined periods and output control signals, a driver configured to control the digital filter by adjusting the predetermined periods, and an input/output circuit configured to recognize an input and output of data and clock in response to the control signals.