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. 16, 2025
Filed:
Jul. 06, 2023
Crossbar, Inc., Santa Clara, CA (US);
Mehdi Asnaashari, Danville, CA (US);
Crossbar, Inc., Santa Clara, CA (US);
Abstract
A secure microcontroller for a secure data storage device can utilize two-terminal non-volatile memory for enhanced security and component density. The secure microcontroller can operate portions of the two-terminal memory in different modes, such as OTP, rewritable or MTP, physical unclonable function PUF and so forth, and discriminate among data access requests according to data characterizations defined for data parameters stored at the secure storage device. A link table maintained by the secure microcontroller can correlate these characterizations with distinct data parameters. In some embodiments of the present disclosure, the secure microcontroller can also maintain predefined characterizations that are common to many data sets. In these embodiments, the link table can simply correlate many of the data sets to one of the predefined characterizations and significantly reduce the overhead involved in characterizing many distinct data parameters.