Code-division multiple-access system with improved utilization of
upstream and downstream channels
    1.
    发明授权
    Code-division multiple-access system with improved utilization of upstream and downstream channels 失效
    码分多址系统,提高了上行和下行信道的利用率

    公开(公告)号:US5533012A

    公开(公告)日:1996-07-02

    申请号:US401451

    申请日:1995-03-09

    CPC分类号: H04B1/71072

    摘要: A code-division multiple-access system has a downstream channel for transmission from a base station to a number of mobile stations, and an upstream channel for transmission from the mobile stations to the base station. On the downstream channel, each mobile station's spreading code is divided into two parts, which modulate data transmitted on in-phase and quadrature carriers, respectively, thereby enabling the length of the spreading code to be doubled without increasing the chip rate. On the upstream channel, as soon as a symbol is received from one mobile station, it is despread to estimate its value, then respread and canceled as interference with respect to the other mobile stations, these processes being iterated in a cyclic order of the mobile stations.

    摘要翻译: 码分多址系统具有用于从基站到多个移动站的传输的下行信道,以及用于从移动站到基站的传输的上行信道。 在下游信道上,每个移动台的扩展码分为两部分,分别对同相和正交载波上传输的数据进行调制,从而使得扩展码的长度可以加倍,而不增加码片速率。 在上游信道上,一旦从一个移动站接收到符号,就将其解扩以估计其值,然后作为对其他移动站的干扰而被重新发送和取消,这些进程按照移动台的循环次序进行迭代 车站。

    Code-division multiple-access receiver with sequential
interference-canceling architecture
    2.
    发明授权
    Code-division multiple-access receiver with sequential interference-canceling architecture 失效
    具有顺序干扰消除架构的码分多址接收机

    公开(公告)号:US5579304A

    公开(公告)日:1996-11-26

    申请号:US397676

    申请日:1995-03-02

    IPC分类号: H04B1/707 H04B1/69 H04K1/00

    CPC分类号: H04B1/71072

    摘要: A code-division multiple-access receiver carries out the following steps whenever it recognizes a symbol boundary in the received baseband signal. First, using the despreading code of the relevant station, it estimates the value of the symbol. Next, using the spreading code of the station, it estimates an interference signal, and modifies the baseband signal by subtracting the interference signal. These steps can be iterated for each symbol. The iterations can be organized into stages, with estimated symbol values from one stage passed to the next stage for use in estimating new symbol values in that next stage. At the end, the remaining baseband signal can be used to adjust the final estimated symbol values.

    摘要翻译: 只要识别接收到的基带信号中的符号边界,码分多址接收机就执行以下步骤。 首先,使用相关站的解扩码,估计符号的值。 接下来,使用站的扩展码,估计干扰信号,并通过减去干扰信号来修改基带信号。 可以对每个符号迭代这些步骤。 可以将迭代组织成阶段,将来自一个阶段的估计符号值传递到下一个阶段,以用于在下一阶段估计新的符号值。 最后,可以使用剩余的基带信号来调整最终的估计符号值。

    ROTARY DEVICE AND WINCH PROVIDED WITH ROTARY DEVICE
    3.
    发明申请
    ROTARY DEVICE AND WINCH PROVIDED WITH ROTARY DEVICE 有权
    旋转装置和旋转装置提供

    公开(公告)号:US20120273739A1

    公开(公告)日:2012-11-01

    申请号:US13386007

    申请日:2010-06-07

    IPC分类号: A61G3/06 B66D1/08 F16H37/06

    CPC分类号: B66D1/12 A61G3/062 B66D1/14

    摘要: A bracket of a rotation device of the present invention has a guide mechanism that is configured to guide a first motor and a second motor so as to rotate the same about an axis of a cylindrical rotating body relative to each other. A first gear and a second gear can respectively be meshed with rotating body side gears corresponding thereto while the first motor or the second motor is deviated around the axis of the cylindrical rotating body from a normal attachment position with respect to the bracket. Further, the first motor or the second motor can be guided to the normal attachment position by the guide mechanism in the condition.

    摘要翻译: 本发明的旋转装置的支架具有引导机构,其构造为引导第一电动机和第二电动机,以使其相对于彼此绕圆柱形旋转体的轴线旋转。 第一齿轮和第二齿轮可以分别与对应于其的旋转体侧齿轮啮合,同时第一马达或第二马达相对于托架从正常安装位置绕圆筒形旋转体的轴线偏离。 此外,第一电动机或第二电动机可以通过引导机构在该状态下被引导到正常的安装位置。

    Inductive load driving method and H-bridge circuit control device
    5.
    发明授权
    Inductive load driving method and H-bridge circuit control device 失效
    感应负载驱动方法和H桥电路控制装置

    公开(公告)号:US5952856A

    公开(公告)日:1999-09-14

    申请号:US841384

    申请日:1997-04-30

    CPC分类号: H03K17/16 H03K17/663

    摘要: A current detecting resistor is inserted in an H-bridge circuit constructed to cause the flow of a current to an inductive load in both forward and reverse directions by four semiconductor switching elements and flywheel diodes respectively connected in reverse parallel to the semiconductor switching elements. An inductive load driving method and an H-bridge circuit control device prevent an erroneous operation caused by noise generated at the current detecting resistor. When a current flowing through the inductive load is controlled by a detection voltage generated by the current detecting resistor, the value of the detection voltage is ignored immediately after the connection of the inductive load to a power source. There is no risk that an erroneous operation is caused by a rush current and/or a through current. When a power source regeneration is made to decrease a switching current, the inductive load is connected to the power source at a predetermined period and a current flowing at that time is detected as the detection voltage. There is no risk that the current becomes too small or the transfer to a steady is made while the current is large.

    摘要翻译: 电流检测电阻器被插入到H桥电路中,该H桥电路被构造成通过分别以与半导体开关元件反向并联连接的四个半导体开关元件和续流二极管在正向和反向两个方向上使电流流向电感负载。 感性负载驱动方法和H桥电路控制装置防止由电流检测电阻器产生的噪声引起的错误操作。 当流过感性负载的电流由电流检测电阻产生的检测电压控制时,在将感性负载连接到电源之后立即忽略检测电压的值。 不存在由冲击电流和/或直流引起的错误操作的风险。 当进行电源再生以降低开关电流时,感应负载以预定周期连接到电源,并且检测当时流过的电流作为检测电压。 电流不会太大或者当前的电流变大时,不会产生稳定的风险。

    Method and apparatus for controlling transistors as rectifiers
    6.
    发明授权
    Method and apparatus for controlling transistors as rectifiers 失效
    用于控制晶体管作为整流器的方法和装置

    公开(公告)号:US5736890A

    公开(公告)日:1998-04-07

    申请号:US626856

    申请日:1996-04-03

    摘要: A rectifying device comprising of a SRMOS, an inductor, and a control circuit is disclosed. The SRMOS has a gate, a drain, and a source. The gate of the SRMOS is connected to the output of the control circuit. The inductor is connected to the drain of the SRMOS. The control circuit uses two sense traces for determining the voltage (or current) passing between the inductor (that is connected to the drain) and the source of the SRMOS. Upon sensing a forward characteristic (voltage or current), the SRMOS forward biases to allow current to flow through the SRMOS. Upon sensing a reverse characteristic (voltage or current), the SRMOS reverse biases to cut off any current flow. Hysteresis is used in setting the forward biasing threshold voltage and the reverse biasing threshold voltage for the SRMOS. In reverse biasing and forward biasing the SRMOS, V.sub.gs is stepped (or curved) controlled to avoid false turn ON/OFF of the SRMOS.

    摘要翻译: 公开了一种包括SRMOS,电感器和控制电路的整流装置。 SRMOS有一个门,一个排水沟和一个源头。 SRMOS的门连接到控制电路的输出。 电感连接到SRMOS的漏极。 控制电路使用两条感测迹线来确定电感器(连接到漏极)和SRMOS源之间的电压(或电流)。 在感测到正向特性(电压或电流)时,SRMOS向前偏置以允许电流流过SRMOS。 在感测到反向特性(电压或电流)时,SRMOS反向偏置以切断任何电流。 迟滞用于设置SRMOS的正向偏置阈值电压和反向偏置阈值电压。 在反向偏置和向前偏置SRMOS时,Vgs被控制(或弯曲),以避免SRMOS的错误打开/关闭。

    Rotary device and winch provided with rotary device
    7.
    发明授权
    Rotary device and winch provided with rotary device 有权
    带旋转装置的旋转装置和绞盘

    公开(公告)号:US08777185B2

    公开(公告)日:2014-07-15

    申请号:US13386007

    申请日:2010-06-07

    IPC分类号: B66D1/14

    CPC分类号: B66D1/12 A61G3/062 B66D1/14

    摘要: A bracket of a rotation device of the present invention has a guide mechanism that is configured to guide a first motor and a second motor so as to rotate the same about an axis of a cylindrical rotating body relative to each other. A first gear and a second gear can respectively be meshed with rotating body side gears corresponding thereto while the first motor or the second motor is deviated around the axis of the cylindrical rotating body from a normal attachment position with respect to the bracket. Further, the first motor or the second motor can be guided to the normal attachment position by the guide mechanism in the condition.

    摘要翻译: 本发明的旋转装置的支架具有引导机构,其构造为引导第一电动机和第二电动机,以使其相对于彼此绕圆柱形旋转体的轴线旋转。 第一齿轮和第二齿轮可以分别与对应于其的旋转体侧齿轮啮合,同时第一马达或第二马达相对于托架从正常安装位置绕圆筒形旋转体的轴线偏离。 此外,第一电动机或第二电动机可以通过引导机构在该状态下被引导到正常的安装位置。

    SEATBELT DEVICE FOR WHEELCHAIR
    8.
    发明申请
    SEATBELT DEVICE FOR WHEELCHAIR 失效
    座椅设备

    公开(公告)号:US20120219395A1

    公开(公告)日:2012-08-30

    申请号:US13390879

    申请日:2010-07-22

    IPC分类号: B60R22/00 A61G3/06

    CPC分类号: A61G3/08 A61G3/062 A61G3/0808

    摘要: An engagement fixture of a shoulder belt is connected to and supported by an engagement buckle disposed in a vehicle interior. When a platform is positioned in a getting in/out position in a vehicle exterior, the engagement fixture of the shoulder belt can be temporarily connected to a temporary fastening fixture provided to the platform. To the contrary, when the platform is positioned in a loading position in a vehicle interior, a connection condition of the engagement fixture of the shoulder belt can be changed from a temporary connection of the fastening fixture to a securely supportable connection of an engagement buckle in the vehicle interior. Thus, it is possible to simplify a belt attaching operation after a wheelchair is loaded in a vehicle while a columnar support member used in the conventional platform is abolished.

    摘要翻译: 肩带的接合夹具连接到布置在车辆内部的接合带扣并由其支撑。 当平台位于车辆外部的进/出位置时,肩带的接合固定件可以临时连接到设置到平台的临时固定夹具。 相反,当平台位于车辆内部的装载位置时,肩带的接合固定件的连接状态可以从紧固固定件的临时连接改变为可接合的卡合扣的连接 车内。 因此,在将轮椅装载在车辆中之后,可以简化在传统平台中使用的柱状支撑构件被取消时的带安装操作。

    VEHICLE SEAT
    9.
    发明申请
    VEHICLE SEAT 有权
    车辆座椅

    公开(公告)号:US20110018324A1

    公开(公告)日:2011-01-27

    申请号:US12439125

    申请日:2007-05-25

    IPC分类号: B60N2/14

    CPC分类号: B60N2/14 B60N2/0224

    摘要: A mechanism for rotating a vehicle seat body and a mechanism for restraining rotation of the seat body are partially shared, reducing the number of parts. The seat includes a seat body, a seat rotation mechanism, a gear forming member having a rotation gear, a drive gear meshable with the rotation gear, and an actuator for rotating the drive gear. The seat further includes a moving mechanism that relatively moves the drive gear and the gear forming member in a direction of a rotation restraint position such that the drive gear is placed in such a position so as to interfere with the gear forming member when the seat body rotates to a first position and when the seat body is urged to rotate in a direction of a second position while the drive gear is in such a position so as to not mesh with the rotation gear.

    摘要翻译: 用于使车辆座椅本体旋转的机构和用于限制座椅本体的旋转的机构部分地共享,减少了部件的数量。 座椅包括座椅本体,座椅旋转机构,具有旋转齿轮的齿轮形成构件,可与旋转齿轮啮合的驱动齿轮和用于旋转驱动齿轮的致动器。 所述座椅还包括移动机构,所述移动机构使得所述驱动齿轮和所述齿轮形成构件沿旋转限制位置的方向相对移动,使得所述驱动齿轮被放置在与所述齿轮形成构件干涉的位置时, 旋转到第一位置,并且当座椅主体被迫沿第二位置的方向旋转时,同时驱动齿轮处于不与旋转齿轮啮合的位置。

    Seat moving device for vehicle
    10.
    发明申请
    Seat moving device for vehicle 有权
    车辆座椅移动装置

    公开(公告)号:US20060131943A1

    公开(公告)日:2006-06-22

    申请号:US10524219

    申请日:2003-08-08

    IPC分类号: A47C1/02

    摘要: It is one object of this invention to provide a technique that is effective in diminishing the range of fluctuation of a load applied to a drive source when a seat main body in a vehicle seat moving apparatus is moved between a raised position and a lowered position. For this purpose, this invention provides a vehicle seat moving apparatus constructed as follows. Provided on a rotation base 31, for rotating a seat main body 10 between a position where it faces the front side of the vehicle and a position where it faces a door opening, is a widthwise slide base 41 that moves horizontally in the vehicle width direction while the seat main body 10 faces the door opening. The seat main body 10 is supported by the slide base 41 via four-bar linkage mechanisms 44. Guide rollers 46 are attached to upper link arms 44a of the four-bar linkage mechanisms 44. The guide rollers 46 are placed on cam surfaces of cam plates 47 provided to the rotation base 31. The cam surfaces have continuously extending inclined guide surfaces 47b that guide such that the guide rollers 46 move obliquely upwards when the widthwise slide base 41 moves.

    摘要翻译: 本发明的一个目的是提供一种技术,当车辆座椅移动装置中的座椅主体在升高位置和降低位置之间移动时,有效地减小施加到驱动源的负载的波动范围。 为此,本发明提供如下构造的车辆座椅移动装置。 在旋转底座31上设置有用于使座椅主体10在与车辆前方相对的位置和与门开口相对的位置之间转动的宽度方向滑动基座41,其沿车宽方向水平移动 而座椅主体10面向门开口。 座椅主体10通过四杆连杆机构44由滑动基座41支撑。 导辊46连接到四杆连杆机构44的上连杆臂44a。 引导辊46放置在设置在旋转基座31上的凸轮板47的凸轮面上。 凸轮表面具有连续延伸的倾斜导向表面47b,其引导使得当横向滑动基座41移动时导向辊46倾斜向上移动。