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:
Jul. 22, 2003
Filed:
May. 07, 2002
Kengo Aritomi, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In generating sub decode signals for specifying a sub word line in a hierarchical word line structure, a first sub decode signal transmitted to a selected sub word line is generated from a sub decode first signal, and a second sub decode signal for holding a non-selected sub word line at a non-selected state is generated by a gate circuit receiving the first sub decode signal and the signal generated on the basis of the sub decode first signal. When the first sub decode signal is selected, the logic level of the second sub decode signal can be changed at high speed. Consequently, a period in which a path through which a through-current flows in a sub word driver can be made sufficiently short and accordingly, the current consumption can be reduced.