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:
Nov. 10, 2009
Filed:
Dec. 07, 2006
Byung-jun Min, Yongin-si, KR;
Kang-woon Lee, Seoul, KR;
Han-joo Lee, Seoul, KR;
Byung-gil Jeon, Suwon-si, KR;
Byung-Jun Min, Yongin-si, KR;
Kang-Woon Lee, Seoul, KR;
Han-Joo Lee, Seoul, KR;
Byung-Gil Jeon, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A semiconductor memory having two different memory areas in one chip includes a memory cell array including a first variable memory area controlled to be accessible in at least first and second operation modes, and a second variable memory area controlled to be inaccessible in one of the first and second operation modes; and a memory control unit for storing area information discriminating between the first memory area and the second memory area and generating memory control signals for controlling access to the first memory area and the second memory area. One memory can be substituted for a memory combination including ROMs and RAMs in one chip.