公开(公告)号：WO1995018472A1

公开(公告)日：1995-07-06

申请号：PCT/US1994014680

申请日：1994-12-20

Applicant: ANALOGIC CORPORATION

Inventor： ANALOGIC CORPORATION ,  GORDON, Bernard, M. ,  JOHNSON, Richard, B. ,  IZRAILIT, Iosef ,  WEEDON, Hans ,  ABRAHAM, Douglas

IPC: H01Q01/38

CPC classification number: H04L25/0266 ,  A61B6/56 ,  H01Q1/38 ,  H01Q3/02

Abstract: An apparatus is provided for transferring data between a first device (34) and a second device (44), the second device being adapted to rotate with respect to the first device. The first device includes a first antenna assembly and a first transceiver assembly (37) for transmitting and receiving signals via the first antenna assembly. The second device includes a second antenna assembly and a second transceiver assembly (41) for transmitting and receiving signals via the second antenna assembly. The rotating antenna is mounted circumferentially about the second device such that the stationary antenna is in capacitive coupling relationship substantially through an entire revolution of the second device. The apparatus is particularly useful in a CT scanner where data is transmitted from the first device to the second device via a single channel, and data is transmitted from the second device to the first device via two time-multiplexed channels so as to provide high speed data transfer from second device to the first device at twice the rate of data transfer from the first device to the second device. The invention includes a variety of features for significantly reducing error rates, and particularly for reducing error due to cross talk between channels.

Abstract translation: 提供了一种用于在第一设备（34）和第二设备（44）之间传送数据的设备，第二设备适于相对于第一设备旋转。 第一装置包括第一天线组件和用于经由第一天线组件发送和接收信号的第一收发器组件（37）。 第二装置包括用于经由第二天线组件发送和接收信号的第二天线组件和第二收发机组件（41）。 旋转天线围绕第二装置周向安装，使得固定天线基本上通过第二装置的整个转动处于电容耦合关系。 该装置在CT扫描器中特别有用，其中数据经由单个信道从第一设备发送到第二设备，并且数据经由两个时间复用信道从第二设备传输到第一设备，以便提供高速 从第一设备到第二设备的数据传输速率的两倍的数据从第二设备传输到第一设备。 本发明包括用于显着降低错误率的各种特征，特别是用于减少由于通道之间的串扰造成的误差。

公开(公告)号：WO2014055066A1

公开(公告)日：2014-04-10

申请号：PCT/US2012/058432

申请日：2012-10-02

Applicant: ANALOGIC CORPORATION

Inventor： BESSON, Guy, M. ,  SHAUGHNESSY, Charles ,  ABRAHAM, Douglas

IPC: G01T1/29

CPC classification number: A61B6/4241 ,  A61B6/035 ,  A61B6/482 ,  G01T1/2985

Abstract: Among other things, one or more techniques and/or systems are described for measuring the attenuation of a line integral through an object via a photon counting cell (302) and via an energy integrating cell (304). That is, an imaging apparatus is provided that comprises a radiation source (208) and a detector array (210). The detector array is comprised of both photon counting cells (302) and energy integrating cells (304) arranged such that, during an examination of the object, attenuation of a line integral through the object is measured by at least one photon counting cell and at least one energy integrating cell. In this way, at least two substantially complete views of an object may be acquired, one from measurements yielded from the photon counting cell (and other photon counting cells) and one from measurements yielded from the energy integrating cell (and other energy integrating cells).

Abstract translation: 其中，描述了一种或多种技术和/或系统，用于经由光子计数单元（302）和经由能量积分单元（304）来测量通过物体积分的线的衰减。 也就是说，提供了一种成像装置，其包括辐射源（208）和检测器阵列（210）。 检测器阵列由两个光子计数单元（302）和能量积分单元（304）组成，排列成使得在物体的检查期间，通过物体积分的线的衰减由至少一个光子计数单元测量 至少一个能量积分单元。 以这种方式，可以获取物体的至少两个基本上完整的视图，一个来自光子计数单元（和其他光子计数单元）产生的测量值和来自能量积分单元（和其他能量积分单元）产生的测量值的测量值， 。

公开(公告)号：WO1995016185A1

公开(公告)日：1995-06-15

申请号：PCT/US1994012155

申请日：1994-10-25

Applicant: ANALOGIC CORPORATION

Inventor： ANALOGIC CORPORATION ,  GORDON, Bernard, M. ,  ABRAHAM, Douglas ,  WINSTON, David ,  WAGONER, Paul

IPC: G01D05/34

CPC classification number: G01D5/24452 ,  G01D5/24476 ,  G01D5/2449 ,  G01D5/2451

Abstract: A system and method of measuring geometric, positional and kinematic parameters of a rotating device is described. The system includes a plurality of spaced interval markings (40) distributed about the periphery of a rotatable device, such as a disk (28), around a circle of known radius concentric with a geometrical center (31) of the disk. At least three and preferably four sensors (42, 44, 50, 52) for detecting the markings are positioned to sense the markings as they rotate with the rotatable device. The sensors are angularly spaced relative to one another around the disk. Means are also provided for interpolating locations between selected markers by measuring the time since each sensor senses a marker. A reference marker (40A) is provided so as to establish a reference point of the rotatable device relative to a fixed point relative to the sensors. Circuitry is provided for determining any lateral displacement of the geometric center of the rotatable device, any out-of roundness of the rotatable device if desired, the angular position of the rotatable device relative to the fixed point relative to the sensors, and the angular velocity of the rotatable device during its rotation. The apparatus has particular application to X-ray tomography systems.

Abstract translation: 描述了一种测量旋转装置的几何，位置和运动学参数的系统和方法。 该系统包括围绕具有与盘的几何中心（31）同心的已知径半径的可旋转装置（例如盘（28））的周边分布的多个间隔间隔标记（40）。 用于检测标记的至少三个并且优选地四个传感器（42,44,50,52）被定位成在它们与可旋转装置一起旋转时感测标记。 传感器相对于彼此围绕盘的角度间隔开。 还提供了用于通过测量每个传感器感测标记物之后的时间来内插选定标记之间的位置的装置。 提供参考标记（40A），以便相对于传感器相对于固定点建立可旋转装置的参考点。 提供电路用于确定可旋转装置的几何中心的任何横向位移，如果需要，可旋转装置的任何超出圆度，可旋转装置相对于传感器相对于固定点的角位置，以及角速度 的旋转装置。 该装置特别适用于X射线层析成像系统。