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:
Jun. 07, 2011
Filed:
Jun. 04, 2009
Sung Kwon Lee, Yongin-si, KR;
Sung Kwon Lee, Yongin-si, KR;
Hynix Semiconductor Inc., Icheon-si, KR;
Abstract
An output driver circuit includes a predriver control signal generation unit receiving a pull-up code signal, a pull-down code signal, a predriver selection signal and a read control signal and generating a pull-up control signal and a pull-down control signal; a predriver driven in response to the pull-up control signal and the pull-down control signal and receiving an internal data to drive a pull-up driving signal and a pull-down driving signal; and a driver receiving the pull-up driving signal and the pull-down driving signal and driving an output data outputted to a DQ pad, wherein the pull-up control signal and the pull-down control signal are enabled when the predriver is selected in a read operation period and a preset combination of the code signals is inputted.