US Patent No. 10,559,376

DATA STORAGE DEVICE WITH REWRITEABLE IN-PLACE MEMORY


Patent No. 10,559,376
Issue Date February 11, 2020
Title Data Storage Device With Rewriteable In-place Memory
Inventorship Timothy Canepa, Los Gatos, CA (US)
Mark Ish, Sandy Springs, GA (US)
David S. Ebsen, Minnetonka, MN (US)
Assignee Seagate Technology LLC, Cupertino, CA (US)

Claim of US Patent No. 10,559,376

1. A data storage device comprising a selection module connected to a write cache and a non-volatile memory, the non-volatile memory comprising bit addressable memory cells separated into a first logical tier and a second logical tier, the selection module configured to restrict access to the first logical tier in response to a first data block being written to an address of the first logical tier and the first logical tier being unstable, the selection module configured to move data resident in the first logical tier to the second logical tier in response to a determination that the data is updated infrequently.