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:
Dec. 02, 2008
Filed:
Aug. 24, 2005
Koichi Kawakami, Yokohama, JP;
Hiroshi Nakamura, Fujisawa, JP;
Koichi Kawakami, Yokohama, JP;
Hiroshi Nakamura, Fujisawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor memory device includes: an ID code memory circuit configured to store ID code data bits in a non-volatile manner; an ID code generating circuit configured to generate an ID code based on the data bits stored in the ID code memory circuit and output it to an external terminal; a power supply voltage detecting circuit configured to detect a power supply voltage supplied from the external and supply a select signal to at least one of the ID code memory circuit and ID code generating circuit for selectively generating one of ID codes, data bits of which are different from each other at least in part in correspondence with power supply voltage levels.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile