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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 11327113 B1

PDFFull Text
Date of Patent:
May. 10, 2022

Filed:

Jul. 29, 2019

Memory loopback systems and methods

Applicant:

Micron Technology, Inc., Boise, ID (US);

Inventor:

David D. Wilmoth, Allen, TX (US);

Assignee:

Micron Technology, Inc., Boise, ID (US);

Attorney:

Fletcher Yoder, P.C.

Primary Examiner:

April Y Blair

Assistant Examiner:

Sazzad Hossain

Int. Cl.
CPC ...
G01R 31/317 (2006.01); G06F 11/30 (2006.01); G01R 31/3185 (2006.01); G11C 7/10 (2006.01); G11C 29/48 (2006.01); G11C 11/401 (2006.01); G11C 29/02 (2006.01); G11C 5/04 (2006.01); G11C 5/00 (2006.01); G11C 29/12 (2006.01); G06F 9/38 (2018.01); G11C 7/22 (2006.01); G11C 29/04 (2006.01);
U.S. Cl.
CPC ...
G01R 31/31716 (2013.01); G01R 31/31713 (2013.01); G01R 31/31715 (2013.01); G01R 31/31726 (2013.01); G01R 31/318536 (2013.01); G01R 31/318547 (2013.01); G06F 11/3051 (2013.01); G11C 5/00 (2013.01); G11C 5/04 (2013.01); G11C 7/1015 (2013.01); G11C 7/1078 (2013.01); G11C 11/401 (2013.01); G11C 29/023 (2013.01); G11C 29/028 (2013.01); G11C 29/1201 (2013.01); G11C 29/48 (2013.01); G06F 9/381 (2013.01); G11C 7/1051 (2013.01); G11C 7/222 (2013.01); G11C 29/12015 (2013.01); G11C 2029/0409 (2013.01);
Abstract

One embodiment of the present disclosure describes a memory system that may include one or more memory devices that may store data. The memory devices may receive command signals to access the stored data as a loopback signal. The memory devices may operate in a normal operational mode, a loopback operational mode, a retrieval operational mode, a non-inverting pass-through operational sub-mode, and an inverting pass-through operational sub-mode. The operational modes facilitate the transmission of the loopback signal for the purpose of monitoring of memory device operations. A selective inversion technique, which uses the operational modes, may protect the loopback signal integrity during transmission.

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