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:
Dec. 23, 2025
Filed:
Apr. 16, 2024
Txc Corporation, Taipei, TW;
Tun-Jen Hsiao, Ping Cheng, TW;
Chia-Yin Chen, Ping Cheng, TW;
Wan-Lin Hsieh, Ping Cheng, TW;
Sheng-Hsiang Kao, Ping Cheng, TW;
TXC CORPORATION, Taipei, TW;
Abstract
An oscillating device is arranged in an environment having an ambient temperature. The oscillating device includes a heater, an oscillator, and a temperature-controlled circuit. The oscillator is configured to generate a first clock signal whose frequency is temperature-dependent on the ambient temperature. The temperature-controlled circuit is directly electrically connected to the heater. The temperature-controlled circuit senses the ambient temperature to generate an input voltage that is temperature-dependent on the ambient temperature and provides the input voltage for the heater. The temperature-controlled circuit includes a MOSFET and a temperature sensing circuit. The drain of the MOSFET is directly electrically connected to the heater. The MOSFET and the heater are electrically connected between a high voltage terminal and a low voltage terminal. The temperature sensing circuit is electrically connected to the gate of the MOSFET.