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. 28, 2021
Filed:
Mar. 08, 2019
Western Digital Technologies, Inc., San Jose, CA (US);
Sergey Anatolievich Gorobets, Edinburgh, GB;
Xinmiao Zhang, Mercer Island, WA (US);
James Fitzpatrick, Laguna Niguel, CA (US);
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
Disclosed are systems and methods for providing multi-phased programming with balanced Gray coding. A method includes programming, in a first phase, a first portion of data into memory cells of a flash memory in a first-level cell mode. The method also includes retaining, in a cache, at least a subset of the data. The method also includes regenerating the data from at least the cache, wherein the regenerated data includes a second portion of the data. The method also includes programming, in a second phase, the regenerated data in a second-level cell mode based on a mapping from the first-level cell mode to the second-level cell mode. The mapping maps each state distribution in the first-level cell mode to at least two non-adjacent state distributions in the second-level cell mode, and a width of each state distribution in the first-level cell mode may be narrowed.