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:
Nov. 04, 2025
Filed:
Aug. 30, 2023
Nxp Usa, Inc., Austin, TX (US);
Ray Charles Marshall, Herts, GB;
Mohit Satsangi, New Delhi, IN;
Andreas Bening, Henstedt-Ulzburg, DE;
NXP USA, Inc., Austin, TX (US);
Abstract
A system comprising a real time clock, RTC, and a processor configured to execute a secure application to provide a secure clock and configured to operate in a first low-power-mode and a first normal-mode, and a non-secure application configured to perform a clock modification procedure and configured to operate in a second low-power-mode and a second normal-mode, the system configured to perform a secure clock initialisation procedure comprising obtaining a record of a current time from the RTC based on a transition from the first low-power-mode to the first normal-mode, wherein the secure application is configured to perform a clock update procedure including updating the RTC with a secure record of the current time and wherein the system is further configured to prevent performing the clock modification procedure after the clock update procedure has been performed.