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:
Feb. 10, 2026
Filed:
Apr. 29, 2024
Silicon Laboratories Inc., Austin, TX (US);
Sheng Jue Peh, Singapore, SG;
Jeffrey L. Sonntag, Weaverville, NC (US);
Silicon Laboratories Inc., Austin, TX (US);
Abstract
A ring oscillator has a first group of inverters that receive respective frequency control signals to control delays through the inverters. The frequency of the ring oscillator is dithered according to least significant bits of a frequency control word supplied by a loop filter of a phase-locked loop. Most significant bits of the frequency control word are used to generate the frequency control signals. An accumulator is clocked by an output of the ring oscillator and accumulates the least significant bits of the frequency control word. A selector circuit selects either N most significant bits of the frequency control word or the N most significant bits of the frequency control word +1 according to the selector signal to generate the frequency control signals.