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. 20, 2026
Filed:
Apr. 09, 2025
Stmicroelectronics International N.v., Geneva, CH;
Rik Paul, Kolkata, IN;
Pravesh Kumar Saini, Greater Nodia, IN;
STMicroelectronics International N.V., Geneva, CH;
Abstract
According to an embodiment, a crystal oscillator control system includes a digital calibration loop working with an analog automatic level control loop to optimize oscillation amplitude and drive level. The system includes a clock cycle counter that monitors oscillation cycles and triggers a comparison between a peak envelope signal and a programmable reference swing voltage. Based on this comparison, a bias current modifier circuit adjusts a bias current code to optimize oscillation amplitude. The digital calibration process occurs at each startup, beginning with a maximum bias current code to ensure reliable startup, then systematically reducing the current to achieve the target oscillation amplitude.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile