CDMA radio transmission system
    21.
    发明授权
    CDMA radio transmission system 失效
    CDMA无线电传输系统

    公开(公告)号:US06307850B1

    公开(公告)日:2001-10-23

    申请号:US08994942

    申请日:1997-12-19

    IPC分类号: H04L2730

    CPC分类号: H04B1/707

    摘要: A CDMA receiving apparatus which can perform coherent detection in multi-code transmission with high accuracy by using a pilot signal, and can be easily produced. The apparatus demodulates data multi-code-transmitted through a plurality of channels, wherein in each of the systems for demodulating reception signals of the respective channels, there are provided spread code generating units for generating spread codes allocated to the channels, spread code generating units for generating spread codes in which a pilot signal is spread, and despreading units for despreading the reception signal on the basis of the spread codes generated by those spread code generating means, so that the transmission condition of the line is estimated on the basis of the pilot signal extracted by despreading and coherent detection of the reception signals of the respective channels is corrected on the basis of the result of the estimation. Because the transmission condition of the line can be estimated by the respective systems, information of the transmission condition need not be distributed to the respective systems.

    摘要翻译: 一种CDMA接收装置,其可以通过使用导频信号以高精度执行多码传输中的相干检测,并且可以容易地产生。 该装置解调通过多个信道发送的多码数据,其中在用于解调相应信道的接收信号的每个系统中,提供扩频码产生单元,用于产生分配给信道的扩频码,扩频码产生单元 用于产生其中扩展导频信号的扩频码,以及解扩单元,用于根据由这些扩展码产生装置生成的扩展码对接收信号进行解扩,以便基于 基于估计结果来校正通过解扩进行提取的导频信号和相应信道的接收信号的相干检测。 因为线路的发送条件可以由各个系统估计,所以传输条件的信息不需要分配给各个系统。

    Data decoding apparatus and data decoding method
    22.
    发明授权
    Data decoding apparatus and data decoding method 有权
    数据解码装置和数据解码方法

    公开(公告)号:US06263474B1

    公开(公告)日:2001-07-17

    申请号:US09158799

    申请日:1998-09-23

    IPC分类号: H03M1303

    摘要: Received signal 201 is input to one frame memory 202 and initial weight calculating section 203. One frame memory section 202 delays one frame of received signal 201 to input to floating point ACS processing section 204. On the other hand, initial weight calculating section 203 integrates an amplitude of the received signal, i.e., the absolute value of received signal level 201 over one frame, and inputs the resultant to floating point ACS section 204. Floating point ACS processing section 204 performs the ACS processing using the output from initial weight calculating section 203 as an initial weight, and inputs the path select result to trace back processing section 205. Trace back processing section 205 reproduces the state transition of the coder based on the input from Floating point ACS processing section 204 to output decoded information sequence.

    摘要翻译: 接收信号201被输入到一个帧存储器202和初始权重计算部分203.一个帧存储器部分202将一帧接收信号201延迟到输入到浮点ACS处理部分204.另一方面,初始权重计算部分203将 接收信号的振幅,即一帧上的接收信号电平201的绝对值,并将结果输入到浮点ACS部分204.浮点ACS处理部分204使用来自初始权重计算部分的输出执行ACS处理 203作为初始权重,并将路径选择结果输入到追溯处理部分205.追溯处理部分205基于来自浮点型ACS处理部分204的输入再现编码器的状态转换以输出解码信息序列。

    Slip ring cooling devices for electrical rotary machines
    25.
    发明授权
    Slip ring cooling devices for electrical rotary machines 失效
    电动旋转机的滑环冷却装置

    公开(公告)号:US4334159A

    公开(公告)日:1982-06-08

    申请号:US154478

    申请日:1980-05-29

    IPC分类号: H02K9/22 H02K9/28

    CPC分类号: H02K9/28

    摘要: A slip ring cooling device for electrical rotary machine comprises a plurality of closed chambers axially extending in the peripheral portion with intervals therebetween in the peripheral direction, and an annular passage at one side. The closed chambers each are defined by the surfaces of holes made in the slip ring so as to axially extend at the peripheral portion of the slip ring. The axially extended holes have open ends and closed ends. The annular passage is fluidly connected to each of said open ends so that said closed chambers communicate with said annular passage. A volatile liquid poured in said passage is distributed uniformly to each of said closed chambers by centrifugal force applied thereon upon the rotation of the slip ring. The distributed liquid is evaporated by the slip ring and brushes contacting the slip ring to form vapor. The vapor is transferred to the lower temperature portion by the pressure difference to be cooled and condensed, whereby the slip ring is cooled.

    摘要翻译: 一种用于电动旋转机械的滑环冷却装置,包括沿圆周方向间隔地在周边部分轴向延伸的多个封闭腔和一侧的环形通道。 封闭室各自由滑环中形成的孔的表面限定,以便在滑环的周边部分轴向延伸。 轴向延伸的孔具有开口端和封闭端。 环形通道流体地连接到每个所述开口端,使得所述封闭室与所述环形通道连通。 浇注在所述通道中的挥发性液体通过在滑环旋转时施加在其上的离心力而均匀分布到每个所述封闭腔室中。 分配的液体被滑环蒸发,刷子与滑环接触形成蒸气。 蒸气通过压差传递到较低温度部分进行冷却和冷凝,由此滑环被冷却。

    X-ray imaging apparatus and X-ray imaging method
    28.
    发明授权
    X-ray imaging apparatus and X-ray imaging method 有权
    X射线成像装置和X射线成像方法

    公开(公告)号:US08908829B2

    公开(公告)日:2014-12-09

    申请号:US13581498

    申请日:2011-02-23

    摘要: Provided is an X-ray imaging apparatus and an X-ray imaging method that offer an alternative for a refraction contrast method.A first scintillator and a second scintillator are used, the first scintillator generating first fluorescent light when X-rays separated by the separating element are incident thereon, and a second scintillator generating second fluorescent light when X-rays separated by the separating element are incident thereon. The second scintillator has a fluorescence emission intensity gradient such that an amount of emitted fluorescent light changes in accordance with a change in a position at which the X-rays are incident.

    摘要翻译: 提供了提供折射对比度方法的替代方案的X射线成像装置和X射线成像方法。 使用第一闪烁器和第二闪烁体,当由分离元件分离的X射线入射时,第一闪烁体产生第一荧光,当由分离元件分离的X射线入射时产生第二荧光的第二闪烁体 。 第二闪烁体具有荧光发射强度梯度,使得发射的荧光的量根据X射线入射的位置的变化而改变。

    X-ray detector and method for manufacturing the same
    30.
    发明授权
    X-ray detector and method for manufacturing the same 有权
    X射线检测器及其制造方法

    公开(公告)号:US08487266B2

    公开(公告)日:2013-07-16

    申请号:US12984515

    申请日:2011-01-04

    IPC分类号: G01T1/24

    CPC分类号: G01T1/2928 H01L31/085

    摘要: An X-ray detector includes an X-ray photoelectric conversion layer configured to produce electric charges in proportion to X-ray irradiation incident on the layer, a collecting electrode configured to collect the electric charges produced by the X-ray photoelectric conversion layer, a common electrode disposed on a surface of the X-ray photoelectric conversion layer opposite to the collecting electrode, a storage capacitor configured to store the electric charges collected by the collecting electrode, and a readout unit configured to read out the electric charges stored in the storage capacitor. A voltage is to be applied between the collecting electrode and the common electrode. The X-ray photoelectric conversion layer is formed of a polycrystalline oxide.

    摘要翻译: X射线检测器包括:X射线光电转换层,被配置为与入射在该层上的X射线照射成比例地产生电荷;收集电极,被配置为收集由X射线光电转换层产生的电荷; 配置在与集电电极相反的X射线光电转换层的表面上的公共电极,配置为存储由集电极收集的电荷的存储电容器,以及读出单元,其被配置为读出存储在存储器中的电荷 电容器。 在集电极和公共电极之间施加电压。 X射线光电转换层由多晶氧化物形成。