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:
May. 26, 2026
Filed:
Mar. 23, 2023
Nanjing University of Posts and Telecommunications, Jiangsu, CN;
Nantong Institute of Nanjing University of Posts and Telecommunications Co., Ltd., Jiangsu, CN;
Zixuan Wang, Jiangsu, CN;
Xin Wang, Jiangsu, CN;
Zhikuang Cai, Jiangsu, CN;
Yufeng Guo, Jiangsu, CN;
Jiafei Yao, Jiangsu, CN;
Wenjing Zhang, Jiangsu, CN;
Yunjin Yin, Jiangsu, CN;
Zushuai Xie, Jiangsu, CN;
Abstract
Disclosed in the present invention is a high-frequency crystal oscillator based on automatic phase error correction. The high-frequency crystal oscillator comprises a high-frequency crystal, a load capacitor, two single-pole double-throw switches, a ring oscillator, an 8-frequency-dividing circuit, a twisted ring counter, a peak detector, a buffer, a digital module, a multiplexer and an amplifier. In the present invention, when a circuit performs energy injection on a high-frequency crystal, a phase error between an injection signal and a crystal oscillation signal is also detected and automatically corrected, such that the phase error is always less than 45 degrees. The present invention ensures the continuous and efficient linear growth in the energy inside a high-frequency crystal, and greatly shortens the starting time required for the crystal to reach a stable oscillation amplitude, thereby realizing rapid starting; and on the basis of automatic phase error correction technology.