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:
Jun. 18, 2024
Filed:
Dec. 13, 2023
Hangzhou Geo-chip Technology Co., Ltd., Hangzhou, CN;
Hangzhou Geo-chip Technology Co., Ltd., Hangzhou, CN;
Abstract
A fast-locking phase-locked loop comprises a phase frequency detector, a charge pump, a loop filter, a voltage-controlled oscillator, a frequency divider, and a fast-locking control unit which receives a reference clock signal at its first input terminal and a phase-locking enable signal at its second input terminal and outputs a reset signal at a high level in response to a rising edge of the reference clock signal when receiving the phase-locking enable signal, wherein the frequency divider is connected to an output terminal of the fast-locking control unit and configured to trigger generation of a feedback signal in response to the reset signal at the high level, and the phase frequency detector is connected to the output terminal of the fast-locking control unit and configured to output a phase error between the reference clock signal and the feedback signal in response to the reset signal at the high level.