公开(公告)号：US08775851B2

公开(公告)日：2014-07-08

申请号：US13296340

申请日：2011-11-15

申请人： Curtis Ling ,  Xing Tan ,  Hyungjin Kim

发明人： Curtis Ling ,  Xing Tan ,  Hyungjin Kim

IPC分类号： G06F1/12 ,  G01S19/23 ,  H03L1/02

CPC分类号： H04W56/001 ,  G01S19/14 ,  G01S19/235 ,  G06F1/12 ,  H03L1/02 ,  H03L1/026

摘要： Methods and systems for precise temperature and timebase ppm error estimation using multiple timebases may comprise measuring a coarse reading of a temperature corresponding to the plurality of timebases. The frequencies of the timebases may be compared to generate a fine reading of the temperature based, at least in part, on the coarse reading and the comparison of the frequencies with respect to models of temperature dependencies for each of the timebases. The timebases may be calibrated utilizing the generated fine reading. The plurality of timebases may comprise different order temperature dependencies. The models of temperature dependencies of each of the plurality of timebases may be updated based, at least in part, on the fine reading of the temperature corresponding to the plurality of timebases. A global navigation satellite system (GNSS) clock signal may be utilized periodically to improve the accuracy of the calibration of the plurality of timebases.

摘要翻译： 使用多个时基的精确温度和时基ppm误差估计的方法和系统可以包括测量对应于多个时基的温度的粗略读数。 可以比较时基的频率，至少部分地基于粗读和相对于每个时间基的温度依赖性模型的频率的比较来生成温度的精细读数。 可以使用生成的精细读数来校准时基。 多个时基可以包括不同的顺序温度依赖性。 至少部分地，可以基于对应于多个时间基的温度的精细读取来更新多个时基中的每一个的温度依赖性的模型。 周期性地可以利用全球导航卫星系统（GNSS）时钟信号来提高多个时基的校准精度。

公开(公告)号：US20120151244A1

公开(公告)日：2012-06-14

申请号：US13296340

申请日：2011-11-15

申请人： Curtis Ling ,  Xing Tan ,  Hyungjin Kim

发明人： Curtis Ling ,  Xing Tan ,  Hyungjin Kim

IPC分类号： G06F1/12

CPC分类号： H04W56/001 ,  G01S19/14 ,  G01S19/235 ,  G06F1/12 ,  H03L1/02 ,  H03L1/026

摘要： Methods and systems for precise temperature and timebase ppm error estimation using multiple timebases may comprise measuring a coarse reading of a temperature corresponding to the plurality of timebases. The frequencies of the timebases may be compared to generate a fine reading of the temperature based, at least in part, on the coarse reading and the comparison of the frequencies with respect to models of temperature dependencies for each of the timebases. The timebases may be calibrated utilizing the generated fine reading. The plurality of timebases may comprise different order temperature dependencies. The models of temperature dependencies of each of the plurality of timebases may be updated based, at least in part, on the fine reading of the temperature corresponding to the plurality of timebases. A global navigation satellite system (GNSS) clock signal may be utilized periodically to improve the accuracy of the calibration of the plurality of timebases.

摘要翻译： 使用多个时基的精确温度和时基ppm误差估计的方法和系统可以包括测量对应于多个时基的温度的粗略读数。 可以比较时基的频率，至少部分地基于粗略读数和频率相对于每个时基的温度依赖性模型的比较而产生温度的精细读数。 可以使用生成的精细读数来校准时基。 多个时基可以包括不同的顺序温度依赖性。 至少部分地，可以基于对应于多个时间基的温度的精细读取来更新多个时基中的每一个的温度依赖性的模型。 周期性地可以利用全球导航卫星系统（GNSS）时钟信号来提高多个时基的校准精度。