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1. 发明申请

WO2006083855A2 METHOD OF ESTIMATING CHANNEL BANDWIDTH FROM A TIME DOMAIN REFLECTOMETER (TDR) MEASUREMENT 审中-公开
标题翻译：估计来自时域反射计（TDR）测量的通道带宽的方法
公开(公告)号：WO2006083855A2
公开(公告)日：2006-08-10
申请号：PCT/US2006/003385
申请日：2006-01-30
申请人： FORMFACTOR, INC. , MILLER, Charles, A. , TSENG, Jim, Chih-chiang
发明人： MILLER, Charles, A. , TSENG, Jim, Chih-chiang
IPC分类号： G01R27/04
CPC分类号： G01R27/04
摘要： Bandwidth of a test channel is determined from a single port Time Domain Reflectometer (TDR) measurement with the channel terminated in a short or an open circuit. Bandwidth is estimated by: (1) making a TDR measurement of a channel terminated in a short or open circuit; (2) determining a maximum slope of the reflection from the TDR measurement; (2) calculating an interpolated rise or fall time, for example by taking 80% of the applied voltage between the 10% and 90% points, and then dividing the applied voltage by the maximum slope determined; (3) dividing the overall interpolated rise time by the square root of two to account for the TDR signal proceeding through the channel twice; (4) removing the contribution of rise time from measurement equipment; and (5) completing calculation of channel bandwidth using a formula to relate bandwidth to rise time, such as: bandwidth = .35/rise time.
摘要翻译：测试通道的带宽由单端口时域反射计（TDR）测量确定，通道以短路或开路端接。带宽通过以下方式估计：（1）使TDR测量在短路或开路中终止; （2）从TDR测量确定反射的最大斜率; （2）例如通过将所施加的电压的80％乘以10％和90％之间的点来计算内插的上升或下降时间，然后将所施加的电压除以所确定的最大斜率; （3）将整体内插上升时间除以二的平方根以考虑通过信道进行的TDR信号两次; （4）消除测量设备上升时间的贡献; 和（5）使用公式来完成信道带宽的计算，以将带宽与上升时间相关联，例如：带宽= .35 /上升时间。

2. 发明申请

WO2006083855A3 METHOD OF ESTIMATING CHANNEL BANDWIDTH FROM A TIME DOMAIN REFLECTOMETER (TDR) MEASUREMENT 审中-公开
标题翻译：估计来自时域反射计（TDR）测量的通道带宽的方法
公开(公告)号：WO2006083855A3
公开(公告)日：2009-04-16
申请号：PCT/US2006003385
申请日：2006-01-30
申请人： FORMFACTOR INC , MILLER CHARLES A , TSENG JIM CHIH-CHIANG
发明人： MILLER CHARLES A , TSENG JIM CHIH-CHIANG
IPC分类号： G01R31/11
CPC分类号： G01R27/04
摘要： Bandwidth of a test channel is determined from a single port Time Domain Reflectometer (TDR) measurement with the channel terminated in a short or an open circuit. Bandwidth is estimated by: (1) making a TDR measurement of a channel terminated in a short or open circuit; (2) determining a maximum slope of the reflection from the TDR measurement; (2) calculating an interpolated rise or fall time, for example by taking 80% of the applied voltage between the 10% and 90% points, and then dividing the applied voltage by the maximum slope determined; (3) dividing the overall interpolated rise time by the square root of two to account for the TDR signal proceeding through the channel twice; (4) removing the contribution of rise time from measurement equipment; and (5) completing calculation of channel bandwidth using a formula to relate bandwidth to rise time, such as: bandwidth = .35/rise time.
摘要翻译：测试通道的带宽由单端口时域反射计（TDR）测量确定，通道以短路或开路端接。带宽通过以下方式估计：（1）使TDR测量在短路或开路中终止; （2）从TDR测量确定反射的最大斜率; （2）例如通过将所施加的电压的80％乘以10％和90％之间的点来计算内插的上升或下降时间，然后将所施加的电压除以所确定的最大斜率; （3）将整体内插上升时间除以二的平方根以考虑通过信道进行的TDR信号两次; （4）消除测量设备上升时间的贡献; 和（5）使用公式来完成信道带宽的计算，以将带宽与上升时间相关联，例如：带宽= .35 /上升时间。

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