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:
Jul. 29, 2025
Filed:
Nov. 06, 2023
Seagate Technology Llc, Fremont, CA (US);
Jon D. Trantham, Chanhassen, MN (US);
Praveen Viraraghavan, Chicago, IL (US);
John W. Dykes, Eden Prairie, MN (US);
Ian J. Gilbert, Chanhassen, MN (US);
Sangita Shreedharan Kalarickal, Eden Prairie, MN (US);
Matthew J. Totin, Exelsior, MN (US);
Mohamad El-Batal, Superior, CO (US);
Darshana H. Mehta, Shakopee, MN (US);
SEAGATE TECHNOLOGY LLC, Fremont, CA (US);
Abstract
Method and apparatus for managing a front-end cache formed of ferroelectric memory element (FME) cells. Prior to storage of writeback data associated with a pending write command from a client device, an intelligent cache manager circuit forwards a first status value indicative that sufficient capacity is available in the front-end cache for the writeback data. Non-requested speculative readback data previously transferred to the front-end cache from the main NVM memory store may be jettisoned to accommodate the writeback data. A second status value may be supplied to the client device if insufficient capacity is available to store the writeback data in the front-end cache, and a different, non-FME based cache may be used in such case. Mode select inputs can be supplied by the client device specify a particular quality of service level for the front-end cache, enabling selection of suitable writeback and speculative readback data processing strategies.