公开(公告)号：US20120013390A1

公开(公告)日：2012-01-19

申请号：US12838010

申请日：2010-07-16

申请人： MD Anwar Sadat ,  Yanli Fan ,  Huawen Jin ,  Woo J. Kim

发明人： MD Anwar Sadat ,  Yanli Fan ,  Huawen Jin ,  Woo J. Kim

IPC分类号： H03K17/687

CPC分类号： G06F13/382

摘要： In versions 1.1a and 1.2 of the DISPLAYPORT™ standard, capacitors are used between a sourcing circuit and a switch for the auxiliary channel. As a result, these capacitors are generally uncharged when the switch activates the auxiliary channel, which can result in errors. Here, a switch is employed that uses precharge circuits to precharge these capacitors. Thus, errors due to charging of these capacitors can be reduced.

摘要翻译： 在DISPLAYPORT™标准的1.1a和1.2版本中，电源用于辅助通道的采样电路和开关之间。 结果，当开关激活辅助通道时，这些电容器通常是不带电的，这可能导致错误。 这里，采用使用预充电电路对这些电容器进行预充电的开关。 因此，可以减少由于这些电容器的充电引起的误差。

公开(公告)号：US4766493A

公开(公告)日：1988-08-23

申请号：US46583

申请日：1987-05-06

申请人： Woo J. Kim

发明人： Woo J. Kim

IPC分类号： G06F1/00 ,  H04N17/04

CPC分类号： H04N17/04

摘要： A device for verifying the operational conditions of a monitor, to distinguish between a computer malfunction and a monitor malfunction by separating the signal cable of the monitor from the computer in the event that the computer system gets out of order. The horizontal synchronizing signal input terminal is connected to the base of a transistor, the collector of which is connected to the base of a switching transistor through a rectifying diode and smoothing condenser, the collector of the switching transistor is connected to a power supply terminal and to the base of an amplifying transistor for amplification of the video signals, so that when the horizontal synchronizing signals are input, the switching transistor is in an on-state so as not to affect the amplifying transistor, while in the case where horizontal synchronizing signals are not input, the switching transistor is turned off so that a power source at the power supply terminal turns on the amplifying transistor to test the operation of the display tube.

摘要翻译： 一种用于验证监视器的操作条件的装置，以便在计算机系统发生故障的情况下，通过将监视器的信号电缆与计算机分开来区分计算机故障和监视器故障。 水平同步信号输入端子连接到晶体管的基极，晶体管的基极通过整流二极管和平滑电容器连接到开关晶体管的基极，开关晶体管的集电极连接到电源端子， 到用于放大视频信号的放大晶体管的基极，使得当输入水平同步信号时，开关晶体管处于导通状态，以便不影响放大晶体管，而在水平同步信号 不会输入开关晶体管，使得电源端子处的电源导通放大晶体管，以测试显示管的操作。

公开(公告)号：US08495273B2

公开(公告)日：2013-07-23

申请号：US12838010

申请日：2010-07-16

申请人： MD Anwar Sadat ,  Yanli Fan ,  Huawen Jin ,  Woo J. Kim

发明人： MD Anwar Sadat ,  Yanli Fan ,  Huawen Jin ,  Woo J. Kim

IPC分类号： G06F13/00 ,  G06F3/00

CPC分类号： G06F13/382

摘要： In versions 1.1a and 1.2 of the DISPLAYPORT™ standard, capacitors are used between a sourcing circuit and a switch for the auxiliary channel. As a result, these capacitors are generally uncharged when the switch activates the auxiliary channel, which can result in errors. Here, a switch is employed that uses precharge circuits to precharge these capacitors. Thus, errors due to charging of these capacitors can be reduced.

摘要翻译： 在DISPLAYPORT（TM）标准的1.1a和1.2版本中，电源用于辅助通道的源电路和开关之间。 结果，当开关激活辅助通道时，这些电容器通常是不带电的，这可能导致错误。 这里，采用使用预充电电路对这些电容器进行预充电的开关。 因此，可以减少由于这些电容器的充电引起的误差。