公开(公告)号：US07937232B1

公开(公告)日：2011-05-03

申请号：US11821810

申请日：2007-06-25

申请人： Paxton Ming Kai Chow ,  Vera Alexandrova Snowball ,  Barton George Lane, III ,  Sophia Leonidovna Shtilman ,  Chalee Asavathiratham ,  Abhijit Majumdar ,  Sherk Chung ,  Yi Wang ,  Paul Tran

发明人： Paxton Ming Kai Chow ,  Vera Alexandrova Snowball ,  Barton George Lane, III ,  Sophia Leonidovna Shtilman ,  Chalee Asavathiratham ,  Abhijit Majumdar ,  Sherk Chung ,  Yi Wang ,  Paul Tran

IPC分类号： G01R29/02

CPC分类号： G05B21/02

摘要： Embodiments of the present invention relate to managing timestamps associated with received data. According to one embodiment, data is collected from a device that generates data at a specified rate, but which lacks a built-in clock. An accurate timestamp is assigned to the data by first taking an absolute timestamp from a reference clock, and then adding a calculated amount of time to each subsequent data point based on an estimate of the sampling frequency of the device. As the generated timestamp drifts from the actual reference clock time, the sampling frequency is re-estimated based on the amount of detected drift.

摘要翻译： 本发明的实施例涉及管理与接收到的数据相关联的时间戳。 根据一个实施例，从以指定速率产生数据但是缺少内置时钟的设备收集数据。 通过首先从参考时钟获取绝对时间戳，然后基于设备的采样频率的估计，将计算出的时间量加到每个后续数据点，从而将准确的时间戳分配给数据。 随着生成的时间戳从实际参考时钟时间漂移，基于检测到的漂移量重新估计采样频率。

公开(公告)号：US08102844B1

公开(公告)日：2012-01-24

申请号：US11525539

申请日：2006-09-21

申请人： Andrew Bryan Nelson ,  Paxton Ming Kai Chow ,  Vera Alexandrova Snowball ,  Sherk Chung ,  Abhijit Majumdar

发明人： Andrew Bryan Nelson ,  Paxton Ming Kai Chow ,  Vera Alexandrova Snowball ,  Sherk Chung ,  Abhijit Majumdar

IPC分类号： H04L12/56

CPC分类号： H04L67/2814 ,  H04L67/125 ,  H04L67/2823

摘要： A method and system for intercepting and forwarding High-Speed SECS Message Services (HSMS) communication between at least two entities, includes a fail-safe bypass to ensure the communications link between the entities is not severed upon failure of the intercepting/forwarding agent. A “pass-through” agent is placed in between two entities communicating via an HSMS link, such that the pass-through agent is able to intercept messages from one entity and forward it to the other entity, and vice versa. The pass-through agent is able to see all messages between the two entities, and is also able to create HSMS messages and send them to one of the entities as if the message had come from the other entity, thereby conferring the ability to inject additional HSMS messages. Should the pass-through agent fail, a bypass mechanism ensures that the two entities can automatically resume HSMS communication without the pass-through agent.

摘要翻译： 一种用于截取和转发至少两个实体之间的高速SECS消息服务（HSMS）通信的方法和系统，包括故障安全旁路，以确保在拦截/转发代理失败之后，实体之间的通信链路不会被切断。 “通过”代理被放置在通过HSMS链路通信的两个实体之间，使得传递代理能够拦截来自一个实体的消息并将其转发给另一个实体，反之亦然。 传递代理能够看到两个实体之间的所有消息，并且还能够创建HSMS消息并将它们发送到其中一个实体，就像消息来自另一个实体一样，从而赋予另外一个实体的能力 HSMS消息。 如果传递代理失败，旁路机制确保两个实体可以自动恢复HSMS通信而不使用直通代理。