Title:
CRYSTAL OSCILLATOR, AND OSCILLATION FREQUENCY ADJUSTMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2019/183875
Kind Code:
A1
Abstract:
Disclosed are a crystal oscillator, and an oscillation frequency adjustment method. The crystal oscillator comprises: a first oscillation circuit, a frequency control circuit and a crystal. The first oscillation circuit outputs a first drive signal having a first oscillation frequency to drive the crystal; and the frequency control circuit determines a frequency control quantity according to the characteristics of an electrical signal flowing through the crystal under the drive of the first drive signal, and adjusts the first oscillation frequency according to the frequency control quantity. When the method is applied in the scenario where a crystal oscillator is made to quickly start oscillation, the period of natural oscillation starting of the crystal oscillator can be shortened, thereby accelerating oscillation starting.
Inventors:
ZHANG MENGWEN (CN)
Application Number:
PCT/CN2018/081052
Publication Date:
October 03, 2019
Filing Date:
March 29, 2018
Export Citation:
Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
H03B5/36
Foreign References:
| CN103618518A | 2014-03-05 | |||
| CN101162888A | 2008-04-16 | |||
| CN103346782A | 2013-10-09 | |||
| US20080100391A1 | 2008-05-01 |
Other References:
See also references of EP 3567719A4
Attorney, Agent or Firm:
BEIJING HEADSTAY INTELLECTUAL PROPERTY AGENCY (CN)
Download PDF:
Previous Patent: BERTHING INSTALLATION VESSEL
Next Patent: ORAL CARE COMPOSITIONS FOR PROMOTING GUM HEALTH
Next Patent: ORAL CARE COMPOSITIONS FOR PROMOTING GUM HEALTH