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35 条记录 (耗时 0.018 秒)

    Common block interface for data and control with handshake protocol
    1.
    发明授权
    Common block interface for data and control with handshake protocol 有权
    具有握手协议的数据和控制的通用块接口

    公开(公告)号：US08161207B1

    公开(公告)日：2012-04-17

    申请号：US11801845

    申请日：2007-05-11

    申请人： John D. Marshall ,  Douglas G. Keithley ,  Gregory R. Smith ,  Roy G. Moss

    发明人： John D. Marshall ,  Douglas G. Keithley ,  Gregory R. Smith ,  Roy G. Moss

    IPC分类号： G06F3/00 ,  G06F13/12 ,  G06F13/38 ,  G06F13/00

    CPC分类号： G06F13/4226

    摘要： A method and apparatus for handshaking using a 2-wire protocol is described. An electronic component may be divided into blocks, with the blocks performing one or more functions. The blocks may be in series with one another to form a pipeline. The blocks may use interface circuitry to transfer information upstream from or downstream to another block. The interface circuitry uses the 2-wire handshaking for the transfer including a transmit readiness wire configured to carry a signal indicative of readiness of the upstream circuit to output data and a receive readiness wire configured to carry a signal indicative of readiness of the downstream circuit to receive the data.

    摘要翻译： 描述使用2线协议进行握手的方法和装置。 电子部件可以被分成块，其中块执行一个或多个功能。 块可以彼此串联以形成管道。 块可以使用接口电路来向另一个块的上游或下游传输信息。 接口电路使用2线握手进行传输，包括配置为传送指示上游电路准备就绪的信号输出数据的发送就绪线，以及被配置为将指示下游电路准备就绪的信号传送到的接收就绪线 接收数据。

    SHIELDING FOR INTRAVASCULAR ULTRASOUND IMAGING SYSTEMS AND METHODS OF MAKING AND USING
    2.
    发明申请
    SHIELDING FOR INTRAVASCULAR ULTRASOUND IMAGING SYSTEMS AND METHODS OF MAKING AND USING 有权
    用于静脉超声成像系统的屏蔽及其制造和使用方法

    公开(公告)号：US20090275838A1

    公开(公告)日：2009-11-05

    申请号：US12435258

    申请日：2009-05-04

    申请人： John D. Marshall ,  Donald Masters

    发明人： John D. Marshall ,  Donald Masters

    IPC分类号： A61B8/14

    CPC分类号： A61B8/4461 ,  A61B8/12 ,  A61B8/445 ,  A61B2562/222

    摘要： A catheter assembly for an intravascular ultrasound system includes a catheter, an imaging core, and a shield-coupling capacitor. The catheter defines a lumen extending along a longitudinal length of the catheter. The imaging core is configured and arranged for inserting into the lumen. The imaging core includes a rotatable driveshaft, one or more transducers, one or more conductors, and a conductive shield. The one or more transducers are mounted to the rotatable driveshaft. The one or more conductors are coupled to the one or more transducers and extend along the driveshaft. The conductive shield is disposed around the one or more conductors. The shield-coupling capacitor is electrically coupled to the conductive shield and includes one or more rotating capacitors. The one or more rotating capacitors include one or more rotating plates and one or more stationary plates. The shield-coupling capacitor is configured and arranged for coupling to a system ground.

    摘要翻译： 用于血管内超声系统的导管组件包括导管，成像芯和屏蔽耦合电容器。 导管限定沿着导管的纵向长度延伸的内腔。 成像芯被配置和布置成插入管腔。 成像芯包括可旋转驱动轴，一个或多个换能器，一个或多个导体和导电屏蔽。 一个或多个换能器安装到可旋转的驱动轴上。 一个或多个导体耦合到一个或多个换能器并沿着驱动轴延伸。 导电屏蔽设置在一个或多个导体周围。 屏蔽耦合电容器电耦合到导电屏蔽并且包括一个或多个旋转电容器。 一个或多个旋转电容器包括一个或多个旋转板和一个或多个固定板。 屏蔽耦合电容器被配置和布置成耦合到系统地。

    Ultrasound transmit and receive path calibration methods and systems
    3.
    发明授权
    Ultrasound transmit and receive path calibration methods and systems 有权
    超声波发射和接收路径校准方法和系统

    公开(公告)号：US07162912B2

    公开(公告)日：2007-01-16

    申请号：US10812335

    申请日：2004-03-29

    申请人： Dermot P. McCartan ,  John D. Marshall

    发明人： Dermot P. McCartan ,  John D. Marshall

    IPC分类号： G01N29/30

    CPC分类号： G01N29/30 ,  G01N29/348 ,  G01N2291/012 ,  G01N2291/015

    摘要： The clipping diodes used to limit voltage during medical diagnostic ultrasound imaging operation are used during calibration operation for measuring amplitude and phase differences. The amplitude and phase measurements using clipping diodes as the calibration node may operate at any frequency, including frequencies less than 20 megahertz as well as frequencies above 20 megahertz. By using the diodes already present, a smaller or more compact calibration system may be provided. More simplistic integration may also result.

    摘要翻译： 用于在医疗诊断超声成像操作期间限制电压的钳位二极管在校准操作期间用于测量幅度和相位差。 使用限幅二极管作为校准节点的幅度和相位测量可以在包括低于20兆赫兹的频率以及高于20兆赫兹的频率的任何频率下工作。 通过使用已经存在的二极管，可以提供更小或更紧凑的校准系统。 也可能导致更简单的集成。

    Laser Print Apparatus That Generates Pulse With Value And Justification Value Based On Pixels In A Multi-Bit Image
    6.
    发明申请
    Laser Print Apparatus That Generates Pulse With Value And Justification Value Based On Pixels In A Multi-Bit Image 有权
    激光打印设备，在多位图像中基于像素产生具有价值和对齐值的脉冲

    公开(公告)号：US20100165404A1

    公开(公告)日：2010-07-01

    申请号：US12564646

    申请日：2009-09-22

    申请人： John D. Marshall ,  Douglas G. Keithley

    发明人： John D. Marshall ,  Douglas G. Keithley

    IPC分类号： G06K15/00

    CPC分类号： H04N1/4056 ,  B41J2/47

    摘要： A laser print apparatus includes a memory for storing a multi-bit image including a plurality of pixels. Each pixel is represented by an N-bit value, wherein N is greater than one. A modulation code generator analyzes three adjacent pixels. The three adjacent pixels include a left pixel, a center pixel, and a right pixel. The modulation code generator is configured to generate a pulse width value based on the value of the center pixel, and a justification value based on the values of the left pixel and the right pixel. A laser print engine forms an output pixel on media based on the pulse width value and the justification value.

    摘要翻译： 激光打印装置包括用于存储包括多个像素的多位图像的存储器。 每个像素由N位值表示，其中N大于1。 调制码发生器分析三个相邻像素。 三个相邻像素包括左像素，中心像素和右像素。 调制码发生器被配置为基于中心像素的值生成脉冲宽度值，并且基于左像素和右像素的值生成对齐值。 激光打印引擎基于脉冲宽度值和对齐值在介质上形成输出像素。

    Apparatus and method for preventing contact damage in electrical equipment
    8.
    发明授权
    Apparatus and method for preventing contact damage in electrical equipment 失效
    防止电气设备接触损坏的装置和方法

    公开(公告)号：US5542425A

    公开(公告)日：1996-08-06

    申请号：US362666

    申请日：1994-12-20

    申请人： John D. Marshall ,  Donald R. Mullen

    发明人： John D. Marshall ,  Donald R. Mullen

    IPC分类号： B06B1/02 ,  H01R13/703 ,  A61B8/00 ,  H01R13/53

    CPC分类号： H01R13/7038 ,  B06B2201/40 ,  B06B2201/76 ,  Y10S439/911

    摘要： A connector is provided for preventing damage to contacts between components of an electrical system which is particularly useful when electrical energy is stored in at least one of the components. The connector includes a mechanically operated latching member for activating and deactivating an electrical interface between the components. In one embodiment, a sensor determines when the connector is being disconnected from one of the components and provides a signal used by one of the components for disabling a power source providing the energy. In another embodiment, the sensor derived disconnect signal controls dissipating the stored energy away from the contacts between the components before the contacts are physically disengaged.

    摘要翻译： 提供了一种用于防止对电气系统的部件之间的接触的损坏的连接器，当电能存储在至少一个部件中时，电气系统的部件之间特别有用。 连接器包括用于启动和去激活部件之间的电接口的机械操作的闩锁构件。 在一个实施例中，传感器确定连接器何时与组件中的一个断开连接，并提供由组件之一使用的用于禁用提供能量的电源的信号。 在另一个实施例中，传感器导出的断开信号控制在触点物理分离之前将存储的能量远离组件之间的触点消散。

    Non raster row pixel processing
    9.
    发明授权
    Non raster row pixel processing 失效
    非栅格行像素处理

    公开(公告)号：US08643661B1

    公开(公告)日：2014-02-04

    申请号：US11801884

    申请日：2007-05-11

    申请人： Douglas G. Keithley ,  Gordon R. Clark ,  John D. Marshall ,  William R. Schmidt

    发明人： Douglas G. Keithley ,  Gordon R. Clark ,  John D. Marshall ,  William R. Schmidt

    IPC分类号： G09G5/36

    CPC分类号： G06T1/60

    摘要： A system and method for processing digital images that efficiently buffers pixel data relating to digital images is disclosed. Pixel values are read from an image storage memory and temporarily stored in a buffer memory according to a non-raster pattern. The processing of pixels also occurs according to a more efficient non-raster pattern.

    摘要翻译： 公开了一种用于处理有效缓冲与数字图像相关的像素数据的数字图像的系统和方法。 从图像存储存储器读取像素值，并根据非光栅图案临时存储在缓冲存储器中。 像素的处理也根据更有效的非光栅图案进行。