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专利名称：Adaptive holdover timing error estimation
and correction
发明人：Daniel B. Rippon,Shankar V. Achanta申请号：US14305608申请日：20140616公开号：US09425652B2公开日：20160823
专利附图：
摘要：Disclosed herein are a variety of various systems and method for adaptiveholdover time error estimation. In one embodiment a system may include a local timesource configured to generate a local time signal and an external time source interface
configured to receive an external time signal. A time source subsystem may beconfigured to compare the local time signal and the external time signal and to
determine a temperature-dependent signal drift rate of the local time signal relative tothe external time signal. The time source subsystem may be a time-dependent signaldrift rate of the local time signal relative to the external time signal. A holdoversubsystem may detect a loss of reception of the external time signal during a holdoverperiod and may estimate a total maximum error based on an estimated maximum time-dependent error and an estimated maximum temperature-dependent error.
申请人：Schweitzer Engineering Laboratories, Inc.
地址：Pullman WA US
国籍：US
代理人：Jared L. Cherry,Richard M. Edge
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