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:
May. 06, 2025
Filed:
May. 19, 2023
Radian Memory Systems, Llc, Plano, TX (US);
Robert Lercari, Thousand Oaks, CA (US);
Craig Robertson, Simi Valley, CA (US);
Mike Jadon, Manhattan Beach, CA (US);
Radian Memory Systems, LLC, Plano, TX (US);
Abstract
This disclosure provides a memory controller for asymmetric non-volatile memory, such as flash memory, and related host and memory system architectures. The memory controller is configured to automatically generate and transmit redundancy information to a destination, e.g., a host or another memory drive, to provide for cross-drive redundancy. This redundancy information can be error correction (EC) information, which is linearly combined with similar information from other drives to create 'superparity.' If EC information is lost for one drive, it can be rebuilt by retrieving the superparity, retrieving or newly generating EC information for uncompromised drives, and linearly combining these values. In one embodiment, multiple error correction schemes are used, including a first intra-drive scheme to permit recovery of up to x structure-based failures, and the just-described redundancy scheme, to provide enhanced security for greater than x structure-based failures.