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. 12, 2007
Filed:
Feb. 24, 2005
Ki-chon Park, Kyoungki-do, KR;
Ki-Chon Park, Kyoungki-do, KR;
Hynix Semiconductor Inc., , KR;
Abstract
Provided is a data strobe signal generating circuit capable of guaranteeing a preamble time (tRPRE). The data strobe signal generating circuit includes: a strobe output driver for outputting a data strobe signal to an outside of a semiconductor device so as to indicate synchronization between an external device and data input/output; and a preamble part for maintaining an output of the strobe output driver to a predetermined logic level during a predetermined delay time from an enabling timing of the preamble signal. Accordingly, it is possible to guarantee the stable operation of the semiconductor memory even when PVT (processor, operating voltage, operating temperature) changes.