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公开(公告)号：US5621310A
公开(公告)日：1997-04-15
申请号：US488395
申请日：1995-06-07
CPC分类号： G01R35/005
摘要： A high-frequency calibration method and circuit including a dual path step attenuator. A calibration system is provided having a switch between the user signal input and the instrument input and an amplifier between the calibration signal input and the instrument input. The amplifier provides signal conditioning. The output of the amplifier is connected to the instrument input through a switch and a resistor, the resistor isolating the switch from the instrument input so as effectively to prevent degradation of the user input signal. A sense amplifier provides a calibration signal output indicative of the input impedance of the instrument input in response to a known stimulus. The input of the sense amplifier is isolated from the instrument input by a resistor. A current source provides a known stimulus to the instrument input to measure input impedance. A step attenuator is provided having an attenuated path and an unattenuated path. The signal input may be switched from the attenuated path to the unattenuated path. A compensation circuit is provided in the attenuated path to compensate for the impedances of switches used to select the amount of attenuation. The calibration input amplifier and sense amplifier are connected to the instrument input via the unattenuated path of the step attenuator. When the signal input is switched to the unattenuated path, the calibration input is switched to the attenuated path, and when the signal input is switched to the attenuated path, the calibration input is switched to the unattenuated path.
摘要翻译： 一种高频校准方法和电路，包括双路径步进衰减器。 提供校准系统，其具有用户信号输入和仪器输入之间的切换以及校准信号输入和仪器输入之间的放大器。 放大器提供信号调理。 放大器的输出通过开关和电阻连接到仪器输入，电阻将开关与仪器输入隔离，以有效地防止用户输入信号的劣化。 读出放大器响应于已知的刺激而提供指示仪器输入的输入阻抗的校准信号输出。 读出放大器的输入通过电阻与仪器输入隔离。 电流源为仪器输入提供已知的刺激，以测量输入阻抗。 提供了具有衰减路径和未衰减路径的阶梯衰减器。 信号输入可以从衰减路径切换到未衰减路径。 在衰减路径中提供补偿电路以补偿用于选择衰减量的开关的阻抗。 校准输入放大器和读出放大器通过步进衰减器的未衰减路径连接到仪器输入端。 当信号输入切换到未衰减路径时，校准输入切换到衰减路径，当信号输入切换到衰减路径时，校准输入切换到未衰减路径。
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公开(公告)号：US5920187A
公开(公告)日：1999-07-06
申请号：US759989
申请日：1996-12-03
CPC分类号： G01R35/005
摘要： A high-frequency calibration method and circuit including a dual path step attenuator. A calibration system is provided having a switch between the user signal input and the instrument input and an amplifier between the calibration signal input and the instrument input. The amplifier provides signal conditioning. The output of the amplifier is connected to the instrument input through a switch and a resistor, the resistor isolating the switch from the instrument input so as effectively to prevent degradation of the user input signal. A sense amplifier provides a calibration signal output indicative of the input impedance of the instrument input in response to a known stimulus. The input of the sense amplifier is isolated from the instrument input by a resistor. A current source provides a known stimulus to the instrument input to measure input impedance. A step attenuator is provided having an attenuated path and an unattenuated path. The signal input may be switched from the attenuated path to the unattenuated path. A compensation circuit is provided in the attenuated path to compensate for the impedances of switches used to select the amount of attenuation. The calibration input amplifier and sense amplifier are connected to the instrument input via the unattenuated path of the step attenuator. When the signal input is switched to the unattenuated path, the calibration input is switched to the attenuated path, and when the signal input is switched to the attenuated path, the calibration input is switched to the unattenuated path.
摘要翻译： 一种高频校准方法和电路，包括双路径步进衰减器。 提供校准系统，其具有用户信号输入和仪器输入之间的切换以及校准信号输入和仪器输入之间的放大器。 放大器提供信号调理。 放大器的输出通过开关和电阻连接到仪器输入，电阻将开关与仪器输入隔离，以有效地防止用户输入信号的劣化。 读出放大器响应于已知的刺激而提供指示仪器输入的输入阻抗的校准信号输出。 读出放大器的输入通过电阻与仪器输入隔离。 电流源为仪器输入提供已知的刺激，以测量输入阻抗。 提供了具有衰减路径和未衰减路径的阶梯衰减器。 信号输入可以从衰减路径切换到未衰减路径。 在衰减路径中提供补偿电路以补偿用于选择衰减量的开关的阻抗。 校准输入放大器和读出放大器通过步进衰减器的未衰减路径连接到仪器输入端。 当信号输入切换到未衰减路径时，校准输入切换到衰减路径，当信号输入切换到衰减路径时，校准输入切换到未衰减路径。
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公开(公告)号：US09291646B2
公开(公告)日：2016-03-22
申请号：US13560735
申请日：2012-07-27
CPC分类号： G01R13/0254
摘要： An apparatus and method for triggering an oscilloscope is disclosed. The oscilloscope is configured to process a first signal in a first domain and a second signal in a second domain. The method includes choosing a different domain for processing each of the first and second signals, respectively. A desired trigger type is selected for one of the chosen domains. The first and second signals are acquired in response to an occurrence of a trigger of the selected trigger type. The first and second signals are processed according to the selected different chosen domains. The method may also include displaying a result of said processing on a display screen.
摘要翻译： 公开了用于触发示波器的装置和方法。 示波器被配置为处理第一域中的第一信号和第二域中的第二信号。 该方法包括分别选择用于处理第一和第二信号中的每一个的不同域。 为所选域之一选择所需的触发类型。 响应于所选择的触发类型的触发的发生而获取第一和第二信号。 根据所选择的不同选择的域来处理第一和第二信号。 该方法还可以包括在显示屏幕上显示所述处理的结果。
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公开(公告)号：US08384411B2
公开(公告)日：2013-02-26
申请号：US12642278
申请日：2009-12-18
IPC分类号： G01R31/02
CPC分类号： G01R31/318511 , G01R31/318513 , H01L2224/16225 , H01L2225/06596 , H01L2924/15192 , H01L2924/15311 , H01L2924/157
摘要： A method and device for measuring a signal of a die to be placed within a package is disclosed. At least one die as a Device Under Test (DUT) is mounted on a substrate and a chip-type measurement instrument is mounted on the substrate, or embedded into the substrate, wherein the instrument analyzes and/or processes the signal of the DUT and may provide stimulus signal to the DUT. The substrate having the DUT and the measurement instrument is mounted on a circuit board that has plural electrodes to be connected to the signal paths of the DUT and the instrument. An electrode is coupled to a standard interface port to provide the signal of the chip-type instrument to an external instrument.
摘要翻译： 公开了一种用于测量待放置在封装内的管芯信号的方法和装置。 至少一个裸片作为被测设备（DUT）安装在基板上，芯片式测量仪器安装在基板上或嵌入基板中，其中仪器分析和/或处理DUT的信号， 可以向DUT提供刺激信号。 具有DUT的基板和测量仪器安装在具有要连接到DUT和仪器的信号路径的多个电极的电路板上。 电极耦合到标准接口端口，以将芯片型仪器的信号提供给外部仪器。
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公开(公告)号：US06512447B1
公开(公告)日：2003-01-28
申请号：US09464790
申请日：1999-12-17
IPC分类号： G05B2302
CPC分类号： H04L49/102 , H01L23/5222 , H01L2924/0002 , H04L49/40 , H01L2924/00
摘要： Bussing high frequency crosspoint switches is achieved by extending an output transmission line bus through an integrated circuit (IC) upon which the crosspoint switch is laid. The internal portion of the output transmission line bus is coupled to an output pad on the IC via a bond wire. This eliminates stubs from the output of the IC to the output transmission line as well as compensating for parasitic capacitance associated with the output pad.
摘要翻译： 通过将输出传输线总线延伸穿过集成电路（IC），布置交叉点开关来实现Bussing高频交叉点开关。 输出传输线总线的内部部分经由接合线耦合到IC上的输出焊盘。 这消除了从IC的输出到输出传输线的短截线以及补偿与输出焊盘相关联的寄生电容。
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公开(公告)号：US20140032149A1
公开(公告)日：2014-01-30
申请号：US13560735
申请日：2012-07-27
IPC分类号： G01R13/02
CPC分类号： G01R13/0254
摘要： An apparatus and method for triggering an oscilloscope is disclosed. The oscilloscope is configured to process a first signal in a first domain and a second signal in a second domain. The method includes choosing a different domain for processing each of the first and second signals, respectively. A desired trigger type is selected for one of the chosen domains. The first and second signals are acquired in response to an occurrence of a trigger of the selected trigger type. The first and second signals are processed according to the selected different chosen domains. The method may also include displaying a result of said processing on a display screen.
摘要翻译： 公开了用于触发示波器的装置和方法。 示波器被配置为处理第一域中的第一信号和第二域中的第二信号。 该方法包括分别选择用于处理第一和第二信号中的每一个的不同域。 为所选域之一选择所需的触发类型。 响应于所选择的触发类型的触发的发生而获取第一和第二信号。 根据所选择的不同选择的域来处理第一和第二信号。 该方法还可以包括在显示屏幕上显示所述处理的结果。
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公开(公告)号：US08103473B2
公开(公告)日：2012-01-24
申请号：US12251747
申请日：2008-10-15
IPC分类号： G01R35/00
CPC分类号： G01R31/3177
摘要： A test and measurement instrument and a method of calibrating the test and measurement instrument including a reference signal generator; multiple input channels; and multiple input circuits. Each input channel is coupled to a corresponding input circuit; and one of the input circuits is coupled to the reference signal generator.
摘要翻译： 一种测试和测量仪器以及校准包括参考信号发生器在内的测试和测量仪器的方法; 多输入通道; 和多个输入电路。 每个输入通道耦合到相应的输入电路; 并且其中一个输入电路耦合到参考信号发生器。
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