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:
Aug. 30, 2011
Filed:
Dec. 28, 2007
Ji-hyae Bae, Kyoungki-do, KR;
Ji-Hyae Bae, Kyoungki-do, KR;
Hynix Semiconductor Inc., , KR;
Abstract
A semiconductor memory device includes training drivers configured to transmit one of data and a predetermined training data pattern from a first data lines to a second data lines in response to a training control signal which is produced by decoding a read training command; and the second data lines configured to transmit an output of the training drivers. The semiconductor memory device according to the present invention can exactly measure a delay time, which is changed according to the surrounding environments between a semiconductor memory device and a data processing unit, through a data training and operation timing can be also adjusted based on the measured delay time.