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:
Apr. 17, 2001
Filed:
Dec. 30, 1999
Ji Eun Jang, Kyoungki-do, KR;
Hyundai Electronics Industries Co., Ltd., Ichon-shi, KR;
Abstract
The present invention relates to a semiconductor memory device which can perform an auto-refresh operation. The semiconductor memory device includes: a mode register set for programming the number of the refresh operations to be consecutively performed; a burst counter for counting the number of the refresh operations according to the output signal from the mode register set; a first timing signal generating unit for generating an internal refresh enable signal for the inside refresh operation according to the output signal from the command decoder; an internal refresh signal generating unit for outputting a previously-set number of internal refresh signals according to the output signal from the first timing signal generating unit; and a NOR gate for NORing the output signal from the command decoder and the output signal from the internal refresh signal generating unit, thereby reducing the number of commands according to a burst shape by using a burst refresh method, and decreasing power consumption during the refresh operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile