Large-Scale Deployable Solar Array
    1.
    发明申请
    Large-Scale Deployable Solar Array 有权
    大型可部署太阳能阵列

    公开(公告)号:US20070262204A1

    公开(公告)日:2007-11-15

    申请号:US11695163

    申请日:2007-04-02

    IPC分类号: B64G1/22

    CPC分类号: B64G1/222 Y10S136/292

    摘要: A deployable structure is disclosed. The deployable structure may include one or more slit-tube longerons; and one or more flat sheets coupled with the one or more slit-tube longerons. The one or more slit-tube longerons and the one or more flat sheets may be stowed by rolling the one or more slit-tube longerons and the one or more flat sheets together into a roll. In one embodiment, at least a portion of the one or more slit-tube longerons may be exposed when stowed. In another embodiment, the one or more slit-tube longerons may be manufactured from a shape memory material. These slit-tube longerons unroll into to a straight configuration when exposed to heat.

    摘要翻译: 公开了可展开的结构。 可展开的结构可以包括一个或多个狭缝管长孔; 以及与一个或多个狭缝管长边连接的一个或多个平板。 可以通过将一个或多个狭缝管纵梁和一个或多个平板卷在一起成卷而将一个或多个狭缝管长和一个或多个平板收起。 在一个实施例中,一个或多个狭缝管长孔的至少一部分可以在收起时暴露。 在另一个实施例中,一个或多个狭缝管长管可以由形状记忆材料制造。 当暴露于热量时,这些裂缝管延伸展开成直线构型。

    Self-calibration procedure in physical layer transceiver for home telephone wire network
    2.
    发明授权
    Self-calibration procedure in physical layer transceiver for home telephone wire network 有权
    家用电话线网物理层收发器的自校准程序

    公开(公告)号:US07215763B1

    公开(公告)日:2007-05-08

    申请号:US09336709

    申请日:1999-06-21

    IPC分类号: H04M1/00

    CPC分类号: H04M1/24

    摘要: A novel method of configuring a physical layer transceiver for providing data communications via residential wiring. A transmit section of the transceiver produces a pulse signal having selected amplitude. This pulse signal received by an input circuit in a receiver section of the transceiver is used for adjusting the gain of the input circuit to a fixed optimum level. In particular, the gain of the input circuit may be adjusted in response to at least one pulse. A calibration circuit of the transceiver includes a comparator for comparing the receive signal produced at the output of the input circuit, with a threshold level, and controller that supplies the input circuit with a gain control value, and sets the threshold level. The controller reduce the gain control value to decrease the gain of the input circuit when the receive signal exceeds the threshold level. The gain control value is increased to raise the gain of the input circuit when the receive signal is less than the threshold level.

    摘要翻译: 一种配置物理层收发器以通过住宅布线提供数据通信的新颖方法。 收发器的发射部分产生具有所选幅度的脉冲信号。 由收发器的接收器部分中的输入电路接收的该脉冲信号用于将输入电路的增益调整到固定的最佳电平。 特别地,可以响应于至少一个脉冲调整输入电路的增益。 收发器的校准电路包括比较器,用于将在输入电路的输出处产生的接收信号与阈值电平进行比较;以及控制器,其向输入电路提供增益控制值,并设置阈值电平。 当接收信号超过阈值电平时,控制器降低增益控制值以降低输入电路的增益。 当接收信号小于阈值电平时,增益控制值增加以提高输入电路的增益。

    Acquisition and display of ultrasonic images from sequentially oriented
image planes
    3.
    发明授权
    Acquisition and display of ultrasonic images from sequentially oriented image planes 失效
    从顺序导向的图像平面获取和显示超声波图像

    公开(公告)号:US5353354A

    公开(公告)日:1994-10-04

    申请号:US795604

    申请日:1991-11-21

    摘要: An ultrasonic imaging system is disclosed which produces a sequence of images of planes of a subject including both image and spatial positional information of the image plane. In one embodiment the positional information is developed from a plurality of accelerometers located within a scanhead. The second integrals of the acceleration signals are used to determine positional information of the image plane. In a second embodiment a transmitter transmits a magnetic field and a receiver attached to the scanhead detects the position of the scanhead in relation to the transmitted magnetic field. Spatially related images are displayed by displaying one image plane in the plane of the display and a second image plane projected in relation thereto. Either of the displayed planes may be displayed in outline form, and the outline may be modulated to depict depth.

    摘要翻译: 公开了一种超声波成像系统,其产生包括图像平面的图像和空间位置信息的对象的平面图像序列。 在一个实施例中,从位于扫描头内的多个加速度计展开位置信息。 加速度信号的第二积分用于确定图像平面的位置信息。 在第二实施例中,发射机发射磁场,并且附接到扫描头的接收机相对于所发射的磁场检测扫描头的位置。 通过在显示器的平面中显示一个图像平面和相对于其投影的第二图像平面来显示空间相关的图像。 显示的平面中的任一个可以以轮廓形式显示,并且轮廓可以被调制以描绘深度。

    Volumetric ultrasonic imaging with diverging elevational ultrasound beams
    4.
    发明授权
    Volumetric ultrasonic imaging with diverging elevational ultrasound beams 失效
    体积超声波成像与发散高程超声波束

    公开(公告)号:US5305756A

    公开(公告)日:1994-04-26

    申请号:US43045

    申请日:1993-04-05

    IPC分类号: G01S15/89 G10K11/34 A61B8/00

    CPC分类号: G01S15/8993 G10K11/34

    摘要: An ultrasonic transducer is provided for producing two-dimensional projection images of the interior of the body. The transducer may comprise an array of elements, acuated to produce scanning beams which are focused in the azimuthal direction and divergent in the elevation direction. The elements will, when actuated, emit fan-shaped beams which will insonify a volumetric region in front of the transducer. Echoes returning from structures within the volumetric region are acoustically integrated and projected onto a plane within the region. An image display of this plane will represent a two-dimensional projection of the volumetric region.

    摘要翻译: 提供超声换能器用于产生身体内部的二维投影图像。 传感器可以包括元件阵列,以便产生沿方位角方向聚焦并在高度方向上发散的扫描光束。 这些元件在被致动时将会发出扇形的光束,这将使传感器前面的体积区域变得细长。 从体积区域内的结构返回的回波被声学地整合并投影到该区域内的平面上。 该平面的图像显示将表示体积区域的二维投影。

    Automatic output drive level control in home networking transceiver
    5.
    发明授权
    Automatic output drive level control in home networking transceiver 有权
    家庭网络收发器中的自动输出驱动电平控制

    公开(公告)号:US08121180B1

    公开(公告)日:2012-02-21

    申请号:US09413821

    申请日:1999-10-07

    申请人: Philip Keller

    发明人: Philip Keller

    IPC分类号: H04B1/38 H04B3/00 H04L25/03

    CPC分类号: H04L25/10

    摘要: A novel method of configuring a transceiver for data transmission via residential wiring. The method involves setting a DC level at the output terminal of the transceiver, comparing a value representing the DC level with a predetermined threshold level, and controlling an output driver of the transceiver until this value is equal to the threshold level. The output driver may be controlled during initialization of the transceiver. To implement the method, the transceiver is provided with an output drive control system for comparing a DC level set at the output terminal with the threshold signal to control the output driver so as to maintain the transmit signal at a prescribed level.

    摘要翻译: 一种通过住宅布线配置收发器进行数据传输的新方法。 该方法包括在收发器的输出端设置DC电平,将表示DC电平的值与预定阈值电平进行比较,以及控制收发器的输出驱动器,直到该值等于阈值电平。 可以在收发器的初始化期间控制输出驱动器。 为了实现该方法,收发器设置有输出驱动控制系统,用于将输出端设置的DC电平与阈值信号进行比较,以控制输出驱动器,以将发送信号保持在规定水平。

    Acquisition and display of ultrasonic images from sequentially oriented
image planes
    6.
    发明授权
    Acquisition and display of ultrasonic images from sequentially oriented image planes 失效
    从顺序导向的图像平面获取和显示超声波图像

    公开(公告)号:US5529070A

    公开(公告)日:1996-06-25

    申请号:US513678

    申请日:1994-09-27

    摘要: An ultrasonic imaging system is disclosed which produces a sequence of images of planes of a subject including both image and spatial positional information of the image plane. In one embodiment the positional information is developed from a plurality of accelerometers located within a scanhead. The second integrals of the acceleration signals are used to determine positional information of the image plane. In a second embodiment a transmitter transmits a magnetic field and a receiver attached to the scanhead detects the position of the scanhead in relation to the transmitted magnetic field. Spatially related images are displayed by displaying one image plane in the plane of the display and a second image plane projected in relation thereto. Either of the displayed planes may be displayed in outline form, and the outline may be modulated to depict depth.

    摘要翻译: 公开了一种超声波成像系统,其产生包括图像平面的图像和空间位置信息的对象的平面图像序列。 在一个实施例中,从位于扫描头内的多个加速度计展开位置信息。 加速度信号的第二积分用于确定图像平面的位置信息。 在第二实施例中,发射机发射磁场,并且附接到扫描头的接收机相对于所发射的磁场检测扫描头的位置。 通过在显示器的平面中显示一个图像平面和相对于其投影的第二图像平面来显示空间相关的图像。 显示的平面中的任一个可以以轮廓形式显示,并且轮廓可以被调制以描绘深度。