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.:

US 8856426 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 07, 2014

Filed:

Feb. 16, 2010
Applicant:

Mutsuhiro Ohmori, Kanagawa, JP;

Inventor:

Mutsuhiro Ohmori, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G11C 16/22 (2006.01); G11C 16/06 (2006.01);
U.S. Cl.
CPC ...
G11C 16/06 (2013.01); G11C 16/22 (2013.01);
Abstract

There is provided a memory device capable of stably storing recorded data over a long term of several decades or longer and capable of reliably reading stored data. A first circuitand a second circuitare separately implementable, and the first circuitincludes a data recording circuitreading recorded data from an address appointed by an address signal when a read/write signal stays at a first level and writing data to the address appointed by the address signal when the read/write signal stays at a second level, and a write/read control circuitperforming data write/read control on the data recording circuit according to the address signal in response to a read or write instruction from the second circuit.


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