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:
May. 17, 2005
Filed:
Aug. 19, 2003
Katsuki Hazama, Tokyo-to, JP;
Katsuki Hazama, Tokyo-to, JP;
Nippon Steel Corporation, , JP;
Abstract
A method of reading data from a plurality of multi-level memory cells. The cells are arranged to correspond to a physical address space, each cell having at least one transistor. Each cell stores 2levels of data. A logical address is converted into a physical address included in the physical address space. A determination is made whether a logical address space including the logical address matches the physical address space. The most significant bit (X1) is specified by comparing an output voltage of the transistor corresponding to the most significant bit with a reference voltage when a logical address space matches the physical address space. The specified bit is output from one of the cells corresponding to the physical address. A computer readable medium stores program code for carrying out the method of reading out the plurality of multi-level memory cells.