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:
Dec. 29, 2015
Filed:
Aug. 11, 2014
Hgst Technologies Santa Ana, Inc., Santa Ana, CA (US);
Po-Jen Hsueh, Kaohsiung, TW;
Richard A. Mataya, Rancho Santa Margarita, CA (US);
Mark Moshayedi, Newport Coast, CA (US);
HGST Technologies Santa Ana, Inc., Santa Ana, CA (US);
Abstract
A flash controller receives a read request for reading a page of data from the flash memory from a host system, and identifies, in a cache tag table stored in the random access memory, a virtual unit address associated with the page of data. In response to identifying the virtual unit address in the cache tag table, controller determines whether a valid tag line for the page of data is associated with the virtual unit address in the cache tag table. In response to determining that the valid tag line is associated with the virtual unit address in the cache tag table, the controller reads the page of data from the random access memory in accordance with the read request and returns the read data to the host system.