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:
Mar. 22, 2011
Filed:
Jun. 30, 2009
Hyeng Ouk Lee, Gyeonggi-do, KR;
Kwan Weon Kim, Gyeonggi-do, KR;
Hyeng Ouk Lee, Gyeonggi-do, KR;
Kwan Weon Kim, Gyeonggi-do, KR;
Hynix Semiconductor Inc., Gyeonggi-do, KR;
Abstract
A clock signal generating circuit includes a main clock buffering unit and a sub clock buffering unit. The main clock buffering unit is capable of generating both a differential clock signal pair and a single clock signal. The main clock buffering unit selectively outputs either the differential clock signal pair or the single clock signal depending upon the frequency of an external clock signal. The sub clock buffering unit receives the output of the main clock buffering unit and generates first and second clock signals. The operation of the sub clock buffering unit depends upon whether the differential clock signal pair or the single clock signal is output by the main clock buffering unit.