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:
Feb. 02, 2021
Filed:
Sep. 05, 2018
Kyocera Tikitin Oy, Espoo, FI;
Aarne Oja, Espoo, FI;
Antti Jaakkola, Espoo, FI;
KYOCERA Tikitin Oy, Espoo, FI;
Abstract
A frequency reference oscillator device and method of providing a frequency reference signal. The oscillator device includes a first oscillator including a first resonator having first long-term stability and a first frequency-vs-temperature turnover temperature, the first oscillator being capable of providing a first frequency signal. Further, the device includes and a second oscillator including a second resonator having second long-term stability, which is inferior to the first long-term stability, and a second frequency-vs-temperature turnover temperature, the second oscillator being capable of providing a second frequency signal. There is also provided a thermostatic controller for adjusting the temperature of the first resonator essentially to said first turnover temperature and the temperature of the second resonator essentially to said second turnover temperature, and a stability control circuit configured to use the first frequency signal for adjusting the second oscillator for providing a temperature stabilized and long-term stabilized output frequency signal.