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. 24, 2007
Filed:
Dec. 09, 2005
Fumihiro Kohno, Yokohama, JP;
Fumihiro Kohno, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor memory having memory cells each storing first data and second data in a memory cell array arranged in a column direction; a plurality of word lines connected to the memory cells in a row direction; and first and second bit lines, to which the first and second data are respectively read out, in the column direction. When one of the first and second bit lines changes from a first potential to a second potential lower than the first potential after data read out, the potential of the other bit line is changed from the second to the first potential, and if the electric potential of the selected bit line changes from the first to the second potential when data is read out, the other bit line is selected when the data is next read out, and, if the electric potential of the selected bit line maintains the first potential, the selected bit line is maintained selected even when the data is to be read out next.