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:
Feb. 28, 2017
Filed:
Jun. 23, 2016
Apple Inc., Cupertino, CA (US);
Avraham Poza Meir, Rishon Le-Zion, IL;
Eyal Gurgi, Petah-Tikva, IL;
Naftali Sommer, Rishon Le-Zion, IL;
Yoav Kasorla, Kfar Netar, IL;
Apple Inc., Cupertino, CA (US);
Abstract
A method includes, in a plurality of memory cells that share a common isolation layer and store in the common isolation layer quantities of electrical charge representative of data values, assigning a first group of the memory cells for data storage, and assigning a second group of the memory cells for protecting the electrical charge stored in the first group from retention drift. Data is stored in the memory cells of the first group. Protective quantities of the electrical charge that protect from the retention drift in the memory cells of the first group are stored in the memory cells of the second group.