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:
Apr. 08, 2025
Filed:
Sep. 26, 2023
Western Digital Technologies, Inc., San Jose, CA (US);
Savita Neelannavar, Bangalore, IN;
Laxmi Bhoopali, Bangalore, IN;
SANDISK TECHNOLOGIES, INC, Milpitas, CA (US);
Abstract
A storage device minimizes HPB entry inactivation resulting from data associated with hot reads being retrieved from multiple HPB sub-regions covering a logical-to-physical table. The storage device may support the HPB feature and a multiple HPB sub-region mode. The storage device includes a controller that tracks a hit count associated with a logical block address in a read command. The controller determines that the hit count has reached a hit threshold and updates a hit table to identify logical block address pages associated with hit counts that have reached the hit threshold across HPB sub-regions covering a logical-to-physical table. The controller transmits the hit table to a host device to be stored in an HPB cache on the host device and to be used by the host device for read commands sent from the host device to the storage device.