Method and apparatus for estimating the length of a transmission line
    1.
    发明授权
    Method and apparatus for estimating the length of a transmission line 失效
    用于估计传输线长度的方法和装置

    公开(公告)号:US06782043B1

    公开(公告)日:2004-08-24

    申请号:US09484630

    申请日:2000-01-18

    IPC分类号: H04B1700

    CPC分类号: H04B3/46

    摘要: A method and apparatus for estimating the length of a transmission line is provided. The transmission line extends between a transmitter and a receiver and has a low-pass filter characteristic and an impulse response. The method and apparatus receive a data signal from the transmission line at the receiver and estimate the length of the transmission line as a function of the received data signal and the impulse response.

    摘要翻译: 提供了一种用于估计传输线的长度的方法和装置。 传输线在发射机和接收机之间延伸,具有低通滤波器特性和脉冲响应。 该方法和装置从接收机处的传输线路接收数据信号,并根据接收的数据信号和脉冲响应估计传输线路的长度。

    Efficient algorithm for blind detection of signal constellation
    2.
    发明授权
    Efficient algorithm for blind detection of signal constellation 有权
    用于信号星座盲检测的高效算法

    公开(公告)号:US06614851B1

    公开(公告)日:2003-09-02

    申请号:US09615890

    申请日:2000-07-14

    IPC分类号: H04L512

    CPC分类号: H04L27/0012

    摘要: A method for determining the signal constellation of a received signal establishes a moment based on each waveform, squares the moment, fourth powers the moment, divides the fourth power by the square to obtain a ratio, and compares the ratio to a threshold. If the ratio is less than threshold, the signal constellation corresponds to a first type, and if greater than the threshold, the signal constellation corresponds to a second type. The method can be generalized to a magnitude mean in place of a second moment.

    摘要翻译: 用于确定接收信号的信号星座的方法基于每个波形建立一个时刻,平方的时刻,第四个功率的瞬间,将第四个功率除以平方以获得一个比率,并将该比率与阈值进行比较。 如果比率小于阈值,信号星座对应于第一类型,并且如果大于阈值,则信号星座对应于第二类型。 该方法可以被推广到大小平均值代替第二时刻。

    Bowl star projector
    3.
    外观设计

    公开(公告)号:USD998213S1

    公开(公告)日:2023-09-05

    申请号:US29780473

    申请日:2021-04-25

    申请人: Jing Li

    设计人: Jing Li

    摘要: FIG. 1 is a perspective view of a bowl star projector showing my new design;
    FIG. 2 is a front elevation view thereof;
    FIG. 3 is a rear elevation view thereof;
    FIG. 4 is a left side elevation view thereof;
    FIG. 5 is a right side elevation view thereof;
    FIG. 6 is a top plan view thereof; and,
    FIG. 7 is a bottom plan view thereof.
    The broken lines depict portions of the bowl star projector that form no part of the claimed design.

    Storage cabinet
    4.
    外观设计

    公开(公告)号:USD982943S1

    公开(公告)日:2023-04-11

    申请号:US29881765

    申请日:2023-01-06

    申请人: Jing Li

    设计人: Jing Li

    Projector lamp
    5.
    外观设计

    公开(公告)号:USD982220S1

    公开(公告)日:2023-03-28

    申请号:US29775298

    申请日:2021-03-23

    申请人: Jing Li

    设计人: Jing Li

    TUBULAR RIVET FOUNDATION FOR ONSHORE WIND TURBINE GENERATORS

    公开(公告)号:US20200263380A1

    公开(公告)日:2020-08-20

    申请号:US16278037

    申请日:2019-02-15

    IPC分类号: E02D27/42 F03D13/20 E02D15/04

    摘要: Embodiments of the present foundation for wind turbine generators comprise four structural members: a relatively long central hollow pier, several arm grade beams, a continued grade beam and a continued shear key. The central hollow pier positions in the center of the foundation system, arm grade beams are arranged evenly in radial direction and extend from the pier to the continued grade beam. Continued grade beam is arranged circumferentially in outer periphery and the continued shear key is built below it. Arm grade beams have a varied section with the far end embedding into ground. The top of the continued grade beam matches the top of arm grade beams, while the continued shear key embeds deeper into ground. All structural members are constructed of cast-in-place concrete reinforced with rebars, and all connections are fixed and rigid. The present foundation uses the ground to shape and form the structural members, no formwork, backfilling and compaction is needed.

    Rotary steerable drilling tool with electromagnetic steering system
    7.
    发明授权
    Rotary steerable drilling tool with electromagnetic steering system 有权
    带电磁转向系统的旋转导向钻具

    公开(公告)号:US09580968B2

    公开(公告)日:2017-02-28

    申请号:US14308458

    申请日:2014-06-18

    IPC分类号: E21B7/24 E21B7/06

    CPC分类号: E21B7/24 E21B7/067

    摘要: A rotary steerable drilling tool with an electromagnetic steering system can include a drill collar, a bit shaft, an orientation control module, a mud tube, a mud tube coupler, a universal joint, a mud sealing device, and a drill bit. The bit shaft can be mechanically coupled to the drill collar through the universal joint and the orientation control module and rotate about the universal joint. The orientation and the inclination angle of the bit shaft against the drill collar can be controlled by the orientation control module with the electromagnetic steering system. The orientation control module can include an array of electromagnets, an array of permanent magnets, a rotor, and a set of bearings. The orientation control module can be coupled to the bit shaft through the rotor. The movement of the rotor can be driven by the interaction between the array of electromagnets and the array of permanent magnets.

    摘要翻译: 具有电磁转向系统的旋转可转向钻具可以包括钻铤,钻头轴,定向控制模块,泥浆管,泥浆管联接器,万向接头,泥浆密封装置和钻头。 钻头轴可以通过万向接头和定向控制模块机械联接到钻铤,并围绕万向接头旋转。 钻头轴相对于钻铤的方向和倾斜角度可以由具有电磁转向系统的定向控制模块来控制。 定向控制模块可以包括电磁体阵列,永磁体阵列,转子和一组轴承。 定向控制模块可以通过转子耦合到钻头轴。 转子的运动可以通过电磁体阵列与永磁体阵列之间的相互作用来驱动。

    Solid-state compositions and methods for generating white light
    8.
    发明授权
    Solid-state compositions and methods for generating white light 有权
    固态组合物和产生白光的方法

    公开(公告)号:US09537112B2

    公开(公告)日:2017-01-03

    申请号:US14239616

    申请日:2012-08-19

    摘要: This application discloses a new family of inorganic-organic hybrid semiconductor bulk materials built on periodic nanostructured 2D layers of ZnS that emit bright white light with high quantum efficiency. These ZnS-based crystalline inorganic-organic hybrid semiconductors have well defined and precisely controllable crystal structure and composition. Their optical emission properties, including intensity, quantum yield, and color quality, can be systematically tuned by varying the composition of both inorganic and organic components. Methods for preparing these materials, use of these materials as a new type of single-phased white light emitting phosphors, and their applications in making WLED devices are also disclosed.

    摘要翻译: 该申请公开了一种新型的无机 - 有机杂化半导体体材料系列,它们建立在发射具有高量子效率的亮白光的ZnS的周期性纳米结构2D层上。 这些基于ZnS的结晶无机 - 有机杂化半导体具有良好的定义和精确控制的晶体结构和组成。 可以通过改变无机组分和有机组分的组成来系统地调节它们的光学发射性质,包括强度,量子产率和颜色质量。 还公开了制备这些材料的方法,使用这些材料作为新型的单相白色发光荧光体,以及它们在制备WLED器件中的应用。

    Access method and system for MTC device, and MTC device
    10.
    发明授权
    Access method and system for MTC device, and MTC device 有权
    MTC设备和MTC设备的访问方法和系统

    公开(公告)号:US09144089B2

    公开(公告)日:2015-09-22

    申请号:US13574323

    申请日:2011-04-15

    IPC分类号: H04W4/00 H04J3/00 H04W74/08

    CPC分类号: H04W74/0833

    摘要: The present invention provides an access method and a system for a Machine-Type Communication (MTC) device, and an MTC device. The method comprises the steps of: an MTC device sending, when performing channel request, a channel request cause value and a random reference value to a Base Station Subsystem (BSS) (100), and the BSS sending the received channel request cause value and random reference value back to the MTC device when completing channel allocation (101). The present invention distinguishes the MTC services from other non-MTC services through the channel request cause value, that is, when the cause values are different, the collision will not occur even if the random reference values are the same, thus reducing the probability of the random reference value collision, implementing the effective management for access operations of large numbers of MTC devices, and avoiding the influence of random reference value collision on the normal implementation of original services.

    摘要翻译: 本发明提供了一种用于机器类型通信(MTC)设备和MTC设备的访问方法和系统。 所述方法包括以下步骤:MTC设备在向基站子系统(BSS)(100)发送信道请求原因值和随机参考值时,发送所述接收的信道请求导致值,并且 随机参考值在完成信道分配时返回给MTC设备(101)。 本发明通过信道请求原因值来区分MTC服务与其他非MTC服务,即当原因值不同时,即使随机参考值相同也不会发生冲突,从而降低了 随机参考值碰撞,实现大量MTC设备接入操作的有效管理,避免随机参考值碰撞对原始业务正常实现的影响。