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:
Mar. 27, 2018
Filed:
Sep. 27, 2017
Apple Inc., Cupertino, CA (US);
APPLE INC., Cupertino, CA (US);
Abstract
A memory system includes an interface and storage circuitry. The interface is configured to communicate with memory cells that store data. The storage circuitry is configured to program a data unit to a first group of the memory cells, to read the data unit from the first group using at least a read threshold to produce a first readout, and in response to detecting that reading the data unit has failed because the read threshold has fallen outside a supported range of read thresholds, due to a temperature difference between a time of programming the first group and a time of reading the first group, to program a second group of the memory cells. The circuitry is further configured to re-read the data unit from the first group using the at least read threshold to produce a second readout, and to recover the data unit from the second readout.