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. 14, 2019
Filed:
Dec. 31, 2016
Western Digital Technologies, Inc., San Jose, CA (US);
Ming-Yu Tai, Irvine, CA (US);
Subhash Balakrishna Pillai, Irvine, CA (US);
Yung-Li Ji, Santa Ana, CA (US);
Haining Liu, Irvine, CA (US);
WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US);
Abstract
A method of wear leveling receives a write request. The write request indicates received data to be written to memory blocks. The method detects a system condition. Example system conditions include a random write condition, a garbage collection start condition, and/or a sequential write condition. Based on the system condition, the method determines whether the received data comprises hot data or cold data. Some embodiments use a write amplification value to determine the system condition. If the received data comprises hot data, the method writes the received data to a cold block. If the received data comprises cold data, the method writes the received data to a hot block.