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21 条记录 (耗时 0.017 秒)

    MULTI-LEVEL TRIGGERING CIRCUIT
    1.
    发明申请
    MULTI-LEVEL TRIGGERING CIRCUIT 有权
    多级触发电路

    公开(公告)号：US20110267037A1

    公开(公告)日：2011-11-03

    申请号：US12769075

    申请日：2010-04-28

    申请人： Hamid Kharrati ,  Steven D. Roach ,  Joseph Sascha Wills

    发明人： Hamid Kharrati ,  Steven D. Roach ,  Joseph Sascha Wills

    IPC分类号： G01R13/20

    CPC分类号： G01R13/0254

    摘要： Circuitry includes a comparator to compare an input analog signal to a threshold and to output a signal that is based on the comparison; a first circuit path to receive the signal and to detect a characteristic of the signal, where the first circuit path is configured to support triggering at a first frequency; a second circuit path to receive the signal and to detect the characteristic of the signal, where the second circuit path is configured to support triggering at a second frequency that is lower than the first frequency; and a selector to select an output of the first circuit path or an output of the second circuit path.

    摘要翻译： 电路包括比较器，用于将输入模拟信号与阈值进行比较，并输出基于比较的信号; 第一电路路径，用于接收所述信号并检测所述信号的特性，其中所述第一电路路径被配置为支持以第一频率的触发; 接收所述信号并检测所述信号的特性的第二电路，其中所述第二电路路径被配置为支持在低于所述第一频率的第二频率的触发; 以及选择器，用于选择第一电路路径的输出或第二电路路径的输出。

    Multi-level triggering circuit
    2.
    发明授权
    Multi-level triggering circuit 有权
    多电平触发电路

    公开(公告)号：US08502522B2

    公开(公告)日：2013-08-06

    申请号：US12769075

    申请日：2010-04-28

    申请人： Hamid Kharrati ,  Steven D. Roach ,  Joseph Sascha Willis

    发明人： Hamid Kharrati ,  Steven D. Roach ,  Joseph Sascha Willis

    IPC分类号： G01R27/02 ,  G01R13/00

    CPC分类号： G01R13/0254

    摘要： Circuitry includes a comparator to compare an input analog signal to a threshold and to output a signal that is based on the comparison; a first circuit path to receive the signal and to detect a characteristic of the signal, where the first circuit path is configured to support triggering at a first frequency; a second circuit path to receive the signal and to detect the characteristic of the signal, where the second circuit path is configured to support triggering at a second frequency that is lower than the first frequency; and a selector to select an output of the first circuit path or an output of the second circuit path.

    摘要翻译： 电路包括比较器，用于将输入模拟信号与阈值进行比较，并输出基于比较的信号; 第一电路路径，用于接收所述信号并检测所述信号的特性，其中所述第一电路路径被配置为支持以第一频率的触发; 接收所述信号并检测所述信号的特性的第二电路，其中所述第二电路路径被配置为支持在低于所述第一频率的第二频率的触发; 以及选择器，用于选择第一电路路径的输出或第二电路路径的输出。

    Connecting digital storage oscilloscopes
    3.
    发明授权
    Connecting digital storage oscilloscopes 有权
    连接数字存储示波器

    公开(公告)号：US08542005B2

    公开(公告)日：2013-09-24

    申请号：US12769065

    申请日：2010-04-28

    申请人： Hamid Kharrati ,  Steven D. Roach ,  Joseph Sascha Willis

    发明人： Hamid Kharrati ,  Steven D. Roach ,  Joseph Sascha Willis

    IPC分类号： G01R13/34 ,  G01R23/16 ,  G01R21/00

    CPC分类号： G01R13/0254

    摘要： An apparatus includes a first oscilloscope having multiple channels, and a second oscilloscope having multiple channels. The first oscilloscope is configured to operate as a master or as a slave. The first oscilloscope operates as the master by using a first trigger signal and a first clock signal that are native to the first oscilloscope, and the first oscilloscope operates as the slave by using a second trigger signal and a second clock signal that are native to the second oscilloscope. The second oscilloscope is configured to operate as the master or as the slave. The second oscilloscope operates as the master by using the second trigger signal and the second clock signal, and the second oscilloscope operates as the slave by using the first trigger signal and the first clock signal.

    摘要翻译： 一种装置包括具有多个通道的第一示波器和具有多个通道的第二示波器。 第一台示波器配置为作为主机或从机操作。 第一个示波器通过使用第一个示波器本机的第一个触发信号和第一个时钟信号作为主器件工作，第一个示波器通过使用第二个触发信号和第二个时钟信号， 第二个示波器。 第二个示波器配置为作为主站或从站进行操作。 第二示波器通过使用第二触发信号和第二时钟信号作为主机操作，并且第二示波器通过使用第一触发信号和第一时钟信号作为从机操作。

    CONNECTING DIGITAL STORAGE OSCILLOSCOPES
    4.
    发明申请
    CONNECTING DIGITAL STORAGE OSCILLOSCOPES 有权
    连接数字存储OSCILLOSCOPES

    公开(公告)号：US20110267036A1

    公开(公告)日：2011-11-03

    申请号：US12769065

    申请日：2010-04-28

    申请人： Hamid Kharrati ,  Steven D. Roach ,  Joseph Sascha Willis

    发明人： Hamid Kharrati ,  Steven D. Roach ,  Joseph Sascha Willis

    IPC分类号： G01R13/20

    CPC分类号： G01R13/0254

    摘要： An apparatus includes a first oscilloscope having multiple channels, and a second oscilloscope having multiple channels. The first oscilloscope is configured to operate as a master or as a slave. The first oscilloscope operates as the master by using a first trigger signal and a first clock signal that are native to the first oscilloscope, and the first oscilloscope operates as the slave by using a second trigger signal and a second clock signal that are native to the second oscilloscope. The second oscilloscope is configured to operate as the master or as the slave. The second oscilloscope operates as the master by using the second trigger signal and the second clock signal, and the second oscilloscope operates as the slave by using the first trigger signal and the first clock signal.

    摘要翻译： 一种装置包括具有多个通道的第一示波器和具有多个通道的第二示波器。 第一台示波器配置为作为主机或从机操作。 第一个示波器通过使用第一个示波器本机的第一个触发信号和第一个时钟信号作为主器件工作，第一个示波器通过使用第二个触发信号和第二个时钟信号， 第二个示波器。 第二个示波器配置为作为主站或从站进行操作。 第二示波器通过使用第二触发信号和第二时钟信号作为主机操作，并且第二示波器通过使用第一触发信号和第一时钟信号作为从机操作。

    ATTENUATOR CIRCUIT
    6.
    发明申请
    ATTENUATOR CIRCUIT 有权
    衰减器电路

    公开(公告)号：US20110267214A1

    公开(公告)日：2011-11-03

    申请号：US12769114

    申请日：2010-04-28

    申请人： Steven D. Roach

    发明人： Steven D. Roach

    IPC分类号： H03M1/12 ,  H03L5/00

    CPC分类号： H03F3/4508 ,  H03F3/45475 ,  H03F2203/45138

    摘要： An attenuator circuit includes a high-frequency circuit path to produce an attenuated first signal; a low-frequency circuit path to produce an attenuated second signal, where the attenuated first signal has a higher frequency than the attenuated second signal; and a transistor that includes a control input. The control input is configured to receive the attenuated second signal to bias the transistor for passage of the attenuated first signal and the attenuated second signal.

    摘要翻译： 衰减器电路包括产生衰减的第一信号的高频电路; 低频电路，产生衰减的第二信号，其中衰减的第一信号具有比衰减的第二信号更高的频率; 以及包括控制输入的晶体管。 控制输入​​被配置为接收衰减的第二信号以偏置晶体管以通过衰减的第一信号和衰减的第二信号。

    Probe with reduced input capacitance
    7.
    发明授权
    Probe with reduced input capacitance 失效
    探头具有降低的输入电容

    公开(公告)号：US5512838A

    公开(公告)日：1996-04-30

    申请号：US940128

    申请日：1992-09-03

    申请人： Steven D. Roach

    发明人： Steven D. Roach

    IPC分类号： G01R1/067 ,  G01R1/06

    CPC分类号： G01R1/06711 ,  G01R1/06772

    摘要： A test probe includes a probe tip electrically connected to a probe amplifier. The probe tip includes an input conductor, a shield conductor, and a middle conductor between the input conductor and the shield. The capacitance between the middle conductor and the input conductor are employed in a frequency compensation circuit. In one embodiment the three conductors form a triaxial probe tip. The middle conductor is a thin film formed along an equipotential surface defined between the input conductor and the shield with the middle conductor not present.

    摘要翻译： 测试探头包括电连接到探针放大器的探针尖端。 探针尖端包括输入导体，屏蔽导体和输入导体与屏蔽之间的中间导体。 中频导体和输入导体之间的电容用于频率补偿电路。 在一个实施例中，三个导体形成三轴探针尖端。 中间导体是沿着输入导体和屏蔽之间限定的等电位面形成的薄膜，中间导体不存在。

    Driving an electronic instrument
    8.
    发明授权
    Driving an electronic instrument 有权
    驾驶电子乐器

    公开(公告)号：US08531176B2

    公开(公告)日：2013-09-10

    申请号：US12769082

    申请日：2010-04-28

    申请人： Steven D. Roach

    发明人： Steven D. Roach

    IPC分类号： G01R27/02

    CPC分类号： G01R13/32 ,  G01R13/0254

    摘要： Circuitry includes a pre-amplifier having a differential output, where the differential output corresponds to a common mode voltage; a multiplexer including sets of transistors, each of which has a control input; a comparator including input terminals, a first terminal of the input terminals to receive a signal that is based on an output of the multiplexer, and a second terminal of the input terminals to receive a threshold voltage; a compensation circuit to produce a divided voltage that varies in accordance with variations in the common mode voltage; and an amplifier to receive a predefined voltage and to use the divided voltage to affect the predefined voltage to produce the threshold voltage for the comparator. Signals in the differential output of the pre-amplifier are applicable to corresponding control inputs in the sets of transistors.

    摘要翻译： 电路包括具有差分输出的前置放大器，其中差分输出对应于共模电压; 多路复用器，包括晶体管组，每个晶体管具有控制输入; 比较器，包括输入端子，输入端子的第一端子，用于接收基于多路复用器的输出的信号;以及输入端子的第二端子以接收阈值电压; 补偿电路，用于产生根据共模电压的变化而变化的分压; 以及用于接收预定电压并且使用分压的电压影响预定电压以产生比较器的阈值电压的放大器。 前置放大器的差分输出中的信号适用于晶体管组中的相应控制输入。

    Circuitry and methods for improving the performance of a light emitting element
    10.
    发明授权
    Circuitry and methods for improving the performance of a light emitting element 有权
    用于改善发光元件的性能的电路和方法

    公开(公告)号：US07049759B2

    公开(公告)日：2006-05-23

    申请号：US10003096

    申请日：2001-12-06

    申请人： Steven D. Roach

    发明人： Steven D. Roach

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0809 ,  H03H7/38

    摘要： Light emitting elements with preselected or adjustable impedance characteristics are provided. Embodiments using a preselected impedance characteristic obtain significant performance benefits compared to the prior art. Embodiments having an adjustable impedance may alter the impedance associated with the light emitting component such that it has a substantially constant resistive or reactive impedance that improves certain performance attributes. This solution virtually eliminates the need for external compensation components and relieves the burden of impedance matching and circuit specialization from the driver circuit.

    摘要翻译： 提供具有预选或可调阻抗特性的发光元件。 使用预选阻抗特性的实施例与现有技术相比获得显着的性能优点。 具有可调阻抗的实施例可以改变与发光部件相关联的阻抗，使得其具有改善某些性能属性的基本上恒定的电阻或电抗阻抗。 该解决方案实际上消除了对外部补偿元件的需求，并减轻了驱动器电路的阻抗匹配和电路专业化的负担。