公开(公告)号：US20120010839A1

公开(公告)日：2012-01-12

申请号：US13237823

申请日：2011-09-20

Applicant: Evan McCarthy ,  John Walley ,  Jeon Hyung-Gyu ,  Amir Ibrahim ,  Sunil Kanekal ,  Jared Welz

Inventor： Evan McCarthy ,  John Walley ,  Jeon Hyung-Gyu ,  Amir Ibrahim ,  Sunil Kanekal ,  Jared Welz

IPC: G06F19/00 ,  G01K13/00 ,  G01K11/00

CPC classification number: G01R19/2506 ,  G01K7/32

Abstract: Aspects of the invention may comprise an integrated circuit comprising a memory, a temperature sensor, a crystal, and a communication module. Data stored in the memory may indicate a frequency of the crystal as a function of temperature and/or time. The memory may be writable via the communication module. Data stored in the memory of the integrated circuit may be updated based on an age and/or time of use of the integrated circuit. The time of use may be one or both of: how long the crystal has been oscillating since its most-recent start up, and how long the crystal has been in use over its lifetime. An electronic device may calculate a frequency of an oscillating signal output by the crystal based on a temperature indication from the temperature sensor and data read from the memory of the integrated circuit.

Abstract translation: 本发明的方面可以包括包括存储器，温度传感器，晶体和通信模块的集成电路。 存储在存储器中的数据可以指示晶体的频率作为温度和/或时间的函数。 存储器可以通过通信模块写入。 可以基于集成电路的使用年龄和/或使用时间来更新存储在集成电路的存储器中的数据。 使用时间可以是以下之一或两者：自其最近启动以来晶体已经振荡多久，以及晶体在其使用寿命中多长时间。 电子设备可以基于来自温度传感器的温度指示和从集成电路的存储器读取的数据来计算晶体输出的振荡信号的频率。