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:
Aug. 19, 2025
Filed:
May. 09, 2023
Gigadevice Semiconductor Inc., Beijing, CN;
Menghai Wang, Beijing, CN;
GigaDevice Semiconductor Inc., Beijing, CN;
Abstract
A frequency-detecting circuit and an electronic device are provided. The frequency-detecting circuit includes a pulse-narrowing circuit and a judging-and-sampling circuit coupled to the pulse-narrowing circuit. The pulse-narrowing circuit is configured to receive a to-be-detected clock signal, and perform at least one pulse-narrowing process for the to-be-detected clock signal. The pulse-narrowing circuit has at least one detection-point frequency, and the pulse-narrowing circuit is configured to narrow the to-be-detected clock signal based on the detection-point frequency to obtain a narrowed output clock signal. The judging-and-sampling circuit is configured to sample the narrowed output clock signal by employing the to-be-detected clock signal as a sampling clock signal to obtain a frequency indication signal. The frequency indication signal is configured to indicate whether the to-be-detected clock signal is greater than the detection-point frequency.