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:
Mar. 18, 2025
Filed:
May. 31, 2022
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Eric Soenen, Austin, TX (US);
Alan Roth, Leander, TX (US);
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Abstract
A duty cycle measurement (DCM) device includes a charge pump circuit and a clocked comparator circuit. The charge pump circuit is configured to receive a clock signal that has an unknown duty cycle and to generate a capacitor voltage based on the duty cycle of the clock signal. The clocked comparator circuit is configured to receive the capacitor voltage and a reference voltage and to generate a digital output code based on the capacitor voltage and the reference voltage. The digital output code is indicative of the duty cycle of the clock signal. The charge pump circuit is further configured to receive the digital output code. A method of determining a duty cycle of a clock signal is also disclosed.