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:
Jun. 10, 2025
Filed:
Sep. 08, 2023
Wenzhou University, Zhejiang, CN;
Wenzhou University, Zhejiang, CN;
Abstract
A PUF-based magnetometer with a safety protection circuit is provided. The PUF-based magnetometer includes a TMR magnetometer main structure, a control circuit, a column encoder circuit, a row encoder circuit, a multiplexer and a dynamic comparator. The TMR magnetometer main structure includes n*n TMR sensors, and the TMR magnetometer main structure can also form a PUF circuit together with a control circuit, a column encoder circuit, a row encoder circuit, a multiplexer and a dynamic comparator to realize a function of a TMR magnetometer. The PUF circuit generates PUF response signals based on random deviations of a TMR sensor fabrication process. The PUF response signals generated by the PUF circuit make it more difficult for attackers to locate specific positions of the TPR sensors, and even make it hard to know the existence of the deviations of the TMR sensors.