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1. 发明授权

US06789030B1 Portable data collector and analyzer: apparatus and method 失效
标题翻译：便携式数据采集器和分析仪：仪器和方法
公开(公告)号：US06789030B1
公开(公告)日：2004-09-07
申请号：US09603659
申请日：2000-06-23
申请人： Sean Coyle , Christopher Dagnall , Andrew Barnes , Anthony Doggett , Dean Wood
发明人： Sean Coyle , Christopher Dagnall , Andrew Barnes , Anthony Doggett , Dean Wood
IPC分类号： G01M700
CPC分类号： G01D9/005
摘要： A portable data collector and analyzer apparatus and method provides predictive and preventative maintenance of a multiplicity of assets through the use of a unique architecture that allows a variety of different application programs to be downloaded to the apparatus for providing a single multi-purpose portable data collector and analyzer apparatus that can employ the variety of different application programs for configuring, inter alia, different measurements types, different transducers types and different signal processing types for collecting and analyzing sensed physical data from a variety of different assets found in industrial plants. A unique frequency shifting and decimation method is employed for spectrum calculation that, inter alia, retains DSP addressing efficiency and increases signal processing speed. Additionally, a unique synchronous sampling method is employed that generates synchronous sample waveforms from asynchronous sample waveforms. Furthermore, a unique clear touch screen overlying a quarter VGA display, an ergonomically designed keypad, and an intuitive user interface allow quick and easy setup and operation for in-field data acquisition, analysis and display.
摘要翻译：便携式数据采集器和分析仪装置和方法通过使用允许将各种不同应用程序下载到设备以提供单个多用途便携式数据采集器的独特架构来提供多种资产的预测和预防性维护和分析仪器，其可以采用各种不同的应用程序，用于特别地配置不同的测量类型，不同的传感器类型和不同的信号处理类型，用于收集和分析来自工业设备中的各种不同资产的感测物理数据。采用独特的频移和抽取方法进行频谱计算，特别是保持DSP寻址效率并提高信号处理速度。另外，采用独特的同步采样方法，可以从异步采样波形中产生同步采样波形。此外，一个独特的清晰触摸屏覆盖四分之一VGA显示屏，符合人体工程学设计的键盘和直观的用户界面，可以快速方便地进行现场数据采集，分析和显示的设置和操作。

2. 发明授权

US06492880B1 Common mode termination 有权
标题翻译：共模终止
公开(公告)号：US06492880B1
公开(公告)日：2002-12-10
申请号：US09803610
申请日：2001-02-21
申请人： Jim Chiappe , Dean Wood , Mehran Ataee , Meilissa Lum
发明人： Jim Chiappe , Dean Wood , Mehran Ataee , Meilissa Lum
IPC分类号： H01P124
CPC分类号： H04L25/085 , H04L25/0266
摘要： A common mode termination includes a shielded connector, a receive section and a transmit section, each section comprising an isolation transformer, a common mode transformer, a reference autotransformer, and an AC shield return. Each transmit section reference autotransformer and receive section reference autotransformer has a center tap for the application of a bias voltage and a bias voltage return. The bias voltage is fed through a common mode transformer, and the resultant common mode termination reduces the conduction of EMI from the serdes coupled to the common mode termination to cables connected to the connector. This common mode termination also provides a reference termination for the copper twisted pair cable and reduces resonances on the cable. Finally, this termination also provides filtering on the DC power source wires and improves noise immunity from transients coupled onto the twisted pair cable into the system.
摘要翻译：共模终端包括屏蔽连接器，接收部分和发射部分，每个部分包括隔离变压器，共模变压器，参考自耦变压器和AC屏蔽返回。每个发射部分参考自耦变压器和接收部分参考自耦变压器具有用于施加偏置电压和偏置电压恢复的中心抽头。偏置电压通过共模变压器馈电，并且所得到的共模端接减少了EMI从耦合到共模终端的电缆到连接到连接器的电缆的导通。该共模终端还为铜双绞线缆提供参考端接，并减少电缆上的谐振。最后，该终端还提供了对直流电源线的滤波，并提高了耦合到双绞线电缆进入系统的瞬态的抗噪声能力。

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