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:
Sep. 08, 2015
Filed:
Jan. 05, 2012
Applicants:
Seok-il Kim, Hwaseong-si, KR;
You-keun Han, Yongin-si, KR;
Sung-ho Choi, Yongin-si, KR;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 8/04 (2006.01); G06F 12/02 (2006.01); G11C 8/06 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0207 (2013.01); G11C 8/04 (2013.01); G11C 8/06 (2013.01);
Abstract
An address transforming circuit that can change a memory mapping when a system is booted includes a switch control signal generating circuit and an address transforming unit. The switch control signal generating circuit generates alternately enabled switch control signals synchronized with a reset signal. The address transforming unit transforms bits of a first address to generate a second address in response to the switch control signals. Accordingly, a semiconductor memory device including the address transforming circuit has a long lifetime and high reliability.