公开(公告)号：US07624203B2

公开(公告)日：2009-11-24

申请号：US11381680

申请日：2006-05-04

申请人： Katherine T Blinick ,  Yutaka Kawai ,  Gregg S Lucas ,  Robert E Medlin ,  Kenneth R Schneebeli ,  Michael Stamps

发明人： Katherine T Blinick ,  Yutaka Kawai ,  Gregg S Lucas ,  Robert E Medlin ,  Kenneth R Schneebeli ,  Michael Stamps

IPC分类号： G06F3/00

CPC分类号： G06F13/4081

摘要： Because cable length affects signal quality, amplifying signals differently to account for cable length (“tuning”) becomes especially important when high speed signals are used. Cable length information may be stored in a non-volatile memory which may be integrated into a cable assembly or may be a discrete component between the cable and an interface. Rather than using a dedicated data line to the memory component a ground line may be connected to the memory component and multiplexed. During normal operation the selected line is grounded through a switching device. When a cable is detected, a management controller changes the state of the switching device to decouple the selected line from ground to allow the management controller access to the data stored in the memory component, including cable length information. The selected line is then re-coupled to ground and interface circuits may be tuned for the cable length.

摘要翻译： 由于电缆长度影响信号质量，因此当使用高速信号时，放大信号会因电缆长度（“调谐”）变得尤为重要。 电缆长度信息可以存储在可以集成到电缆组件中的非易失性存储器中，或者可以是电缆和接口之间的分立组件。 不是将专用数据线用于存储器组件，而是将接地线连接到存储器组件并进行多路复用。 在正常工作期间，所选择的线路通过开关装置接地。 当检测到电缆时，管理控制器改变开关装置的状态以将所选线路与地线分离，以允许管理控制器访问存储在存储器部件中的数据，包括电缆长度信息。 然后将所选择的线重新耦合到地，并且可以针对电缆长度来调整接口电路。

公开(公告)号：US20070260788A1

公开(公告)日：2007-11-08

申请号：US11381680

申请日：2006-05-04

申请人： Katherine Blinick ,  Yutaka Kawai ,  Gregg Lucas ,  Robert Medlin ,  Kenneth Schneebeli ,  Michael Stamps

发明人： Katherine Blinick ,  Yutaka Kawai ,  Gregg Lucas ,  Robert Medlin ,  Kenneth Schneebeli ,  Michael Stamps

IPC分类号： G06F13/00

CPC分类号： G06F13/4081

摘要： Because cable length affects signal quality, amplifying signals differently to account for cable length (“tuning”) becomes especially important when high speed signals are used. Cable length information may be stored in a non-volatile memory which may be integrated into a cable assembly or may be a discrete component between the cable and an interface. Rather than using a dedicated data line to the memory component a ground line may be connected to the memory component and multiplexed. During normal operation the selected line is grounded through a switching device. When a cable is detected, a management controller changes the state of the switching device to decouple the selected line from ground to allow the management controller access to the data stored in the memory component, including cable length information. The selected line is then re-coupled to ground and interface circuits may be tuned for the cable length.

摘要翻译： 由于电缆长度影响信号质量，因此当使用高速信号时，放大信号会因电缆长度（“调谐”）变得尤为重要。 电缆长度信息可以存储在可以集成到电缆组件中的非易失性存储器中，或者可以是电缆和接口之间的分立组件。 不是将专用数据线用于存储器组件，而是将接地线连接到存储器组件并进行多路复用。 在正常工作期间，所选择的线路通过开关装置接地。 当检测到电缆时，管理控制器改变开关装置的状态以将所选线路与地线分离，以允许管理控制器访问存储在存储器部件中的数据，包括电缆长度信息。 然后将所选择的线重新耦合到地，并且可以针对电缆长度来调整接口电路。