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:
Oct. 07, 2025
Filed:
May. 22, 2023
Silicon Laboratories Inc., Austin, TX (US);
Subrata Roy, Austin, TX (US);
Silicon Laboratories Inc., Austin, TX (US);
Abstract
A method updates a low frequency count value at a first frequency in an active mode and maintains the low frequency count value in the low power mode. Updating the low frequency count value includes updating a fractional counter in response to a first clock signal, updating an integral counter in response to a second clock signal, and generating the second clock signal based on the fractional count and the first clock signal. The first clock signal has a second frequency. The first frequency is lower than the second frequency. Updating the low frequency count value may include adjusting the low frequency count value in response to exiting the low power mode based on a difference between a current value of a real time clock counter and a prior value of the real time clock counter stored upon entry into the low power mode.