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:
Dec. 31, 2024
Filed:
Dec. 14, 2022
Gigadevice Semiconductor Inc., Beijing, CN;
Menghai Wang, Beijing, CN;
GigaDevice Semiconductor Inc., Beijing, CN;
Abstract
A frequency-detecting circuit, a DCC, and an electronic device. The frequency-detecting circuit includes a control-signal generating circuit generating a first control signal and a second control signal delayed relative to the first control signal; a charging and discharging path, under control of the second control signal, during a period with a pulse width when the second control signal is at a high level, performing the discharging process, and performing the charging process during another period when the second control signal is at a low level; and a control-voltage generating circuit, sampling values of a voltage of an output terminal of the charging and discharging path before the discharging process during a period with a pulse width when the first control signal is at the high level, to output a corresponding first voltage signal.