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. 31, 2019
Filed:
Apr. 29, 2016
Toshiba Memory Corporation, Minato-ku, Tokyo, JP;
Christopher Delaney, Orange, CA (US);
Leland Thompson, Tustin, CA (US);
John Hamilton, Boulder, CO (US);
Gordon Waidhofer, Irvine, CA (US);
Ali Aiouaz, San Jose, CA (US);
Toshiba Memory Corporation, Tokyo, JP;
Abstract
In one embodiment, a solid state drive (SSD) with power loss protection (PLP) includes a SSD controller, a secondary controller and a power circuit configured to supply power to the SSD from a power source during normal operation and backup power from a backup power source in response to a loss of power supplied by the power source. In the event of a loss of power, the secondary controller is configured to track the holdup time, or duration of time for which the primary controller can operate on backup power. In one embodiment, the holdup time tracked by the secondary controller is stored in a non-volatile memory in communication with the secondary controller.