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1. 发明申请

US20090195525A1 Signal Generator Producing Intersymbol Interference Effects on Serial Data 有权
标题翻译：信号发生器产生符号间干扰对串行数据的影响
公开(公告)号：US20090195525A1
公开(公告)日：2009-08-06
申请号：US12357291
申请日：2009-01-21
申请人： MURALIDHARAN A. KARAPATTU , SAMPATHKUMAR R. DESAI
发明人： MURALIDHARAN A. KARAPATTU , SAMPATHKUMAR R. DESAI
IPC分类号： G09G5/00
CPC分类号： G01R31/31709
摘要： A device and method for generation of Intersymbol interference (ISI) effects on serial data by direct digital synthesis is described. The features of the present invention allow user to set parameters such as data rate, voltage amplitude, encoding scheme etc. as per requirements. An ISI parameter value is selected and applied to the serial data to produce ISI effects in the serial data. Alternatively according to another feature the patterns may be set as per industry standards.
摘要翻译：描述了通过直接数字合成产生对串行数据的符号间干扰（ISI）影响的装置和方法。本发明的特征允许用户根据需要设置数据速率，电压幅度，编码方案等参数。选择ISI参数值并将其应用于串行数据，以在串行数据中产生ISI效果。或者，根据另一特征，可以按照行业标准来设置图案。

2. 发明申请

US20090195498A1 Signal Generator Providing ISI Scaling to Touchstone Files 有权
标题翻译：信号发生器提供ISI缩放到Touchstone文件
公开(公告)号：US20090195498A1
公开(公告)日：2009-08-06
申请号：US12357298
申请日：2009-01-21
申请人： MURALIDHARAN A. KARAPATTU , SAMPATHKUMAR R. DESAI
发明人： MURALIDHARAN A. KARAPATTU , SAMPATHKUMAR R. DESAI
IPC分类号： G09G5/00
CPC分类号： G01R31/31917 , G01R31/31912
摘要： A device and method for producing Inter Symbol Interference (ISI) scaling of S-Parameter Touchstone files for the generation of ISI scaling effects on serial data patterns by direct digital synthesis is described. The features of the present invention allow user to set parameters such as data rate, voltage amplitude, encoding scheme etc. as per requirements for the serial data patterns. An ISI scaling value is selected and applied to an S-Parameter Touchstone file representing transmission path effects. The serial data pattern parameters and the ISI scaling value used with the S-Parameter Touchstone file are compiled to generate a digital data waveform record file. The digital waveform record file is applied to a waveform generation circuit for converting the digital data into an analog serial data pattern with ISI scaling effects.
摘要翻译：描述了用于通过直接数字合成产生对串行数据模式的ISI缩放效果的S参数Touchstone文件的Inter符号干扰（ISI）缩放的装置和方法。本发明的特征允许用户根据串行数据模式的要求来设置数据速率，电压幅度，编码方案等参数。选择ISI缩放值并将其应用于表示传输路径效应的S参数Touchstone文件。串行数据模式参数和与S参数Touchstone文件一起使用的ISI缩放值被编译为生成数字数据波形记录文件。数字波形记录文件被应用于用于将数字数据转换成具有ISI缩放效果的模拟串行数据模式的波形发生电路。

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