Transmit frequency precorrection for satellite terminals
    1.
    发明授权
    Transmit frequency precorrection for satellite terminals 有权
    卫星终端的发射频率预调制

    公开(公告)号:US08489018B2

    公开(公告)日:2013-07-16

    申请号:US12831942

    申请日:2010-07-07

    IPC分类号: H04B7/185

    CPC分类号: H04B7/18513

    摘要: A method for determining a frequency correction and a symbol rate correction for transmissions from a user terminal in a satellite communications system comprises determining a frequency of a signal received at the user terminal, and determining a symbol rate of the signal received at the user terminal. The method also comprises computing an error associated with an oscillator at an outdoor unit of the user terminal, and computing an error associated with an oscillator at an indoor unit of the user terminal. The method also comprises computing a transmit frequency correction for the user terminal based on the error of the oscillator at the outdoor unit and the error of the oscillator at the indoor unit, and computing a transmit symbol rate correction for the user terminal based on the error of the oscillator at the indoor unit.

    摘要翻译: 一种用于确定卫星通信系统中的用户终端的传输的频率校正和符号率校正的方法包括确定在用户终端接收的信号的频率,以及确定在用户终端处接收到的信号的符号率。 该方法还包括在用户终端的室外单元处计算与振荡器相关联的错误,以及在用户终端的室内单元处计算与振荡器相关联的错误。 该方法还包括基于室外单元的振荡器的误差和室内单元的振荡器的误差来计算用户终端的发射频率校正,以及基于误差计算用户终端的发射符号率校正 的振荡器在室内机。

    TRANSMIT FREQUENCY PRECORRECTION FOR SATELLITE TERMINALS
    2.
    发明申请
    TRANSMIT FREQUENCY PRECORRECTION FOR SATELLITE TERMINALS 有权
    卫星终端发射频率预测

    公开(公告)号:US20110009054A1

    公开(公告)日:2011-01-13

    申请号:US12831942

    申请日:2010-07-07

    IPC分类号: H04B17/02

    CPC分类号: H04B7/18513

    摘要: A method for determining a frequency correction and a symbol rate correction for transmissions from a user terminal in a satellite communications system comprises determining a frequency of a signal received at the user terminal, and determining a symbol rate of the signal received at the user terminal. The method also comprises computing an error associated with an oscillator at an outdoor unit of the user terminal, and computing an error associated with an oscillator at an indoor unit of the user terminal. The method also comprises computing a transmit frequency correction for the user terminal based on the error of the oscillator at the outdoor unit and the error of the oscillator at the indoor unit, and computing a transmit symbol rate correction for the user terminal based on the error of the oscillator at the indoor unit.

    摘要翻译: 一种用于确定卫星通信系统中的用户终端的传输的频率校正和符号率校正的方法包括确定在用户终端接收的信号的频率,以及确定在用户终端处接收到的信号的符号率。 该方法还包括在用户终端的室外单元处计算与振荡器相关联的错误,以及在用户终端的室内单元处计算与振荡器相关联的错误。 该方法还包括基于室外单元的振荡器的误差和室内单元的振荡器的误差来计算用户终端的发射频率校正,以及基于误差计算用户终端的发射符号率校正 的振荡器在室内机。

    Soft Handoff Using A Multi-Beam Antenna System
    3.
    发明申请
    Soft Handoff Using A Multi-Beam Antenna System 审中-公开
    使用多光束天线系统进行软切换

    公开(公告)号:US20090034475A1

    公开(公告)日:2009-02-05

    申请号:US12175184

    申请日:2008-07-17

    IPC分类号: H04W4/00

    摘要: A method for providing soft handoff between antennas in a multi-antenna system is provided according to some embodiments of the disclosure. A first packetized digital data stream may be received from a satellite using a first antenna and the data stream may include a plurality of packets that each include a header and data. The data may be provided, forwarded or stored in memory. In the meantime, a second packetized digital data stream is monitored. The second packetized digital data stream may be received from the satellite using a second antenna. The phase difference between the first packetized digital data stream and the second packetized digital data stream may be determined and added or subtracted from the second packetized digital data stream. The second packetized digital data stream may then be provided, forwarded or stored in memory.

    摘要翻译: 根据本公开的一些实施例,提供了一种用于在多天线系统中的天线之间提供软越区切换的方法。 可以使用第一天线从卫星接收第一分组数字数据流,并且数据流可以包括每个包括头部和数据的多个分组。 可以将数据提供,转发或存储在存储器中。 同时,监视第二分组数字数据流。 可以使用第二天线从卫星接收第二分组数字数据流。 第一分组化数字数据流和第二分组数字数据流之间的相位差可以从第二分组数字数据流确定和相加或相减。 然后可以将第二分组数字数据流提供,转发或存储在存储器中。

    AN APPARATUS FOR HEATING A RESTAURANT KITCHEN, DINING ROOM, AND HOT WATER SUPPLY
    4.
    发明申请
    AN APPARATUS FOR HEATING A RESTAURANT KITCHEN, DINING ROOM, AND HOT WATER SUPPLY 有权
    用于加热餐厅,餐厅和热水供应的装置

    公开(公告)号:US20080035138A1

    公开(公告)日:2008-02-14

    申请号:US11427085

    申请日:2006-06-28

    IPC分类号: F24C15/20

    CPC分类号: F24C15/20 Y10S165/909

    摘要: An apparatus for recovering heat from exhaust air received from a restaurant kitchen. Rotating backwards inclined fan blades draw exhaust air from the kitchen along a flow path and impel it against walls of a housing, such that grease is removed from the exhaust air. A fan motor is positioned out of the flow path. The exhaust air is pushed out of the housing to a heat recovery coil directly downstream that is formed from a heat conductive material. The coil has an internal conduit through which a heat transfer fluid is supplied at a temperature below the exhaust air temperature, such that the fluid in the conduit is heated by exhaust air passing over the conductive material. After leaving the conduit, heat energy is transferred from the fluid to makeup air for return to, or to water for use in, the restaurant.

    摘要翻译: 一种用于从餐厅厨房接收的废气中回收热量的装置。 向后倾斜的风扇叶片沿着流动路径从厨房中抽出废气并将其推动到壳体的壁上,使得从排气​​中除去润滑脂。 风扇马达位于流路外。 排气从壳体推出到由导热材料形成的直接下游的热回收线圈。 线圈具有内部导管,在低于排气温度的温度下供应传热流体,使得导管中的流体被通过导电材料的排气所加热。 在离开管道之后,热能从流体转移到补充空气中以返回到餐厅用于水或供水使用。

    Controlling currents in parallel AC/DC converters
    5.
    发明授权
    Controlling currents in parallel AC/DC converters 失效
    并联AC / DC转换器的控制电流

    公开(公告)号:US5956244A

    公开(公告)日:1999-09-21

    申请号:US35718

    申请日:1998-03-05

    IPC分类号: H02M7/17 H02M7/48

    CPC分类号: H02M7/17

    摘要: An apparatus for converting three phase AC supply line voltages to DC voltage on a DC bus, the apparatus including a master converter subsystem and at least one slave converter subsystem wherein each subsystem includes a current regulator, a PMW modulator and a converter, the master converter linked to the supply lines and the slave converter linked to the supply lines via intermediate lines, each regulator receiving a current command signal and generating modulating signals, each modulator using a carrier signal and modulating signals from a corresponding regulator to generate control signals to control a corresponding converter, the intermediate lines linked to a common mode choke for essentially eliminating common mode currents in the intermediate lines.

    摘要翻译: 一种用于将三相AC电源线电压转换为DC总线上的DC电压的装置,该装置包括主转换器子系统和至少一个从属转换器子系统,其中每个子系统包括电流调节器,PMW调制器和转换器,主转换器 连接到通过中间线连接到电源线的供电线路和从属转换器,每个调节器接收电流指令信号并产生调制信号,每个调制器使用载波信号并且调制来自相应调节器的信号以产生控制信号 相应的转换器,连接到共模扼流圈的中间线基本上消除中间线中的共模电流。

    Environmentally safe holder device
    6.
    发明授权
    Environmentally safe holder device 失效
    环保保持装置

    公开(公告)号:US5193673A

    公开(公告)日:1993-03-16

    申请号:US684232

    申请日:1991-04-12

    IPC分类号: B65D71/50

    CPC分类号: B65D71/504

    摘要: A container holder adapted to releaseably retain a plurality of similarly configured containers and adapted to permit release of each container individually.The holder is comprised of a central panel portion and a plurality of retaining portions. Each of the retaining portions has a pull tab that corresponds to it. The pull tab is joined to its respective retaining portion along the margin. The pull tab has a scoreline of a selected length proximate the pull tab so that the pull tab can be operated to release the loop-like structure thus preventing wildlife from becoming entangled in unruptured rings of plastic containers once the package is discarded.

    摘要翻译: 容器保持器,其适于可释放地保持多个相似构造的容器并且适于允许单独地释放每个容器。 保持器由中心板部分和多个保持部分组成。 每个保持部分具有与其对应的拉片。 拉片沿着边缘连接到其相应的保持部分。 拉片具有接近拉片的所选长度的刻痕线,使得拉片可以被操作以释放环状结构,从而防止在包装被丢弃时野生动物不会缠绕在塑料容器的未破裂的环中。

    Milk tank cleaning apparatus and method
    8.
    发明授权
    Milk tank cleaning apparatus and method 失效
    奶罐清洗装置及方法

    公开(公告)号:US4711259A

    公开(公告)日:1987-12-08

    申请号:US678268

    申请日:1984-12-05

    IPC分类号: B08B9/093 B08B3/02

    CPC分类号: B08B9/093

    摘要: A spray assembly for a milk tank, where there is an elongate water pipe positioned in the tank, and a plurality of spray nozzle assemblies mounted to the pipe. Each spray nozzle assembly comprises a nozzle member having radially inwardly directed openings leading to a middle impact chamber which in turn leads directly to an upper discharge opening. The water flows radially inwardly to the impact chamber to provide a random expanding spray pattern that washes upwardly against the interior surface of the tank. The nozzle member is retained by a member having an expanded head and a shank that extends downwardly through a second opening in the pipe. A releasable retaining member retains the connecting member in place. In operation, the water flows against substantially all of the surface portions of the nozzle assembly to provide a self-cleaning action. The assembly can be easily disassembled for maintenance or possibly further cleaning.

    摘要翻译: 用于牛奶罐的喷雾组件,其中存在位于罐中的细长水管,以及安装到管道上的多个喷嘴组件。 每个喷嘴组件包括具有径向向内定向的开口的喷嘴构件,其通向中间冲击室,其又直接引导到上部排出口。 水径向向内流动到冲击室,以提供随机膨胀的喷雾图案,其向上抵靠罐的内表面。 喷嘴构件由具有扩展的头部和柄部的构件保持,该杆部向下延伸穿过管中的第二开口。 可释放的保持构件将连接构件保持就位。 在操作中,水基本上流过喷嘴组件的所有表面部分以提供自清洁作用。 该组件可以容易地拆卸以进行维护或可能进一步的清洁。

    Welding handle assembly
    9.
    发明授权
    Welding handle assembly 失效
    焊接手柄总成

    公开(公告)号:US4161643A

    公开(公告)日:1979-07-17

    申请号:US846440

    申请日:1977-10-28

    IPC分类号: B23K9/32

    CPC分类号: B23K9/32

    摘要: An auxiliary handle attached to a main handle of a welding apparatus by means of a circumferential clamp which permits adjustment rotationally and pivotally of the auxiliary handle. A radiation and contact shield, made of a single piece of heat insulating flexible material, is attached to the auxiliary handle so as to provide a forward radiation shield to protect the user's hand from heat generated at the weld area, and a contact insulating portion which permits the user to place the heel of his hand against the work piece being welded, while protecting the user's hand from the heat of the work piece itself.

    摘要翻译: 辅助手柄借助周向夹具连接到焊接装置的主把手,该圆周夹具允许辅助手柄的旋转和枢轴调节。 一个辐射和接触屏蔽,由一块绝热的柔性材料制成,附在辅助手柄上,以便提供一个前向辐射屏蔽,以保护使用者的手免受在焊接区产生的热量;以及接触绝缘部分 允许使用者将他的手脚靠在被焊接的工件上,同时保护使用者的手不受工件本身的热量的影响。

    Subset transform interleaver
    10.
    发明授权
    Subset transform interleaver 有权
    子集变换交织器

    公开(公告)号:US08390485B2

    公开(公告)日:2013-03-05

    申请号:US13052880

    申请日:2011-03-21

    申请人: Timothy J. Martin

    发明人: Timothy J. Martin

    IPC分类号: H03M7/00

    摘要: Digital communications interleavers re-order the bits of a data coding block in a way that can be described by a table of indices that map the original order to the interleaved order. Conventional interleavers include index table interleavers, which store an index table ahead of operation and algorithmic Interleavers, which generate the indices during operation.Described herein are a new class of interleavers: Subset Transform Interleavers. A subset of generator outputs is selected and processed to create the interleaver indices. The selection is determined apriori and the selection results are stored in a Subset Usage Table. During operation, the generator is operated again and the Subset Usage Table entries determine which generator outputs are used. The generator may be a pseudo-random number generator. Implementations can use an Indexes Remaining Table, which can additionally be manipulated during operation such that it returns to an initialized state after each block interleaving process.

    摘要翻译: 数字通信交织器以可以通过将原始顺序映射到交织顺序的索引表来描述的方式重新排序数据编码块的比特。 传统的交织器包括索引表交织器,其存储操作前的索引表和算法交织器,其在操作期间生成索引。 这里描述的是一类新的交织器:子集变换交错器。 选择并处理发生器输出的子集以创建交织器索引。 选择是先决条件,选择结果存储在子集使用表中。 在运行期间,再次运行发电机,子集使用表项确定使用哪个发生器输出。 发生器可以是伪随机数发生器。 实现可以使用索引剩余表,其可以在操作期间另外操作,使得在每个块交错处理之后返回到初始化状态。