Title:
水晶発振器
Document Type and Number:
Japanese Patent JP6733331
Kind Code:
B2
Abstract:
A crystal oscillator device is disclosed. The crystal oscillator device includes a crystal piece provided in a casing; a pair of excitation electrodes provided for the crystal piece; a coil provided on the crystal piece; a magnetic flux generating member configured to generate magnetic flux passing through the coil; and an alarm generator configured to generate an alarm based on a signal whose amplitude is equal to or less than a reference value, the signal being generated in the coil.
Inventors:
Shoichi Kishi
Moto Kubota
Masayuki Ito
Yoshinori Mezaki
Moto Kubota
Masayuki Ito
Yoshinori Mezaki
Application Number:
JP2016116460A
Publication Date:
July 29, 2020
Filing Date:
June 10, 2016
Export Citation:
Assignee:
富士通株式会社
International Classes:
H03B5/32
Domestic Patent References:
| JP2015023548A | ||||
| JP2013125882A | ||||
| JP6084645A |
Foreign References:
| US20110234417 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Takao Kato
Tadahiko Ito
Takao Kato