Apparatus and method for compensating forward link rain attenuation based on adaptive transmission scheme for interactive satellite transmission system
    51.
    发明授权
    Apparatus and method for compensating forward link rain attenuation based on adaptive transmission scheme for interactive satellite transmission system 失效
    基于交互式卫星传输系统的自适应传输方案补偿前向链路衰减的装置和方法

    公开(公告)号:US07801101B2

    公开(公告)日:2010-09-21

    申请号:US10892679

    申请日:2004-07-15

    IPC分类号: H04B7/216

    摘要: Provided are a forward link rain attenuation compensating apparatus using an adaptive transmission scheme in an interactive satellite communication system and a method thereof. The apparatus separates the mobile stations into clear-sky mobile stations and mobile stations in the state of rain attenuation and makes the clear-sky mobile stations receive data having a high data transmission efficiency at a high-speed while making the rain attenuation mobile stations receive the data continuously although the data transmit rate is low by making each of the two kinds of mobile stations receive data frames of a different transmission method, and provides a method therefor. The apparatus includes: a resource manager, a transmitting data format converter, a forward modulator, a backward demodulator, a receiving data format converter.

    摘要翻译: 提供一种在交互式卫星通信系统中使用自适应传输方案的前向链路雨衰补偿装置及其方法。 该装置将移动台分为处于雨衰状态的空中移动台和移动台,使得天空清空的移动台高速接收高数据传输效率的数据,同时使雨衰移移动站接收 通过使两种移动站中的每一个接收到不同的传输方式的数据帧,数据传输速率是低的,并且提供了一种方法。 该装置包括:资源管理器,发送数据格式转换器,前向调制器,反向解调器,接收数据格式转换器。

    Vapor axial deposition apparatus and method for fabricating soot preform using the same
    55.
    发明申请
    Vapor axial deposition apparatus and method for fabricating soot preform using the same 审中-公开
    蒸气轴向沉积装置及其制造方法

    公开(公告)号:US20070151298A1

    公开(公告)日:2007-07-05

    申请号:US11489959

    申请日:2006-07-20

    IPC分类号: C03B37/07 C03B37/018 F27B1/26

    摘要: Vapor Axial Deposition (VAD) apparatus and method is provided. The VAD apparatus includes a first torch, a second torch, a thermometer, a controller, and a moving device. The first torch grows a core by depositing a soot at an end of a soot preform arranged on an axis. The second torch grows a clad by depositing a soot on the face of the core. The thermometer detects the temperature of the end of the soot preform along the axis and the temperature of an other/lower portion of the core. The controller calculates a difference between a temperature (T1) of the end of the soot preform and a temperature (T4) of a lower portion of the core and controls the movement of the soot preform according to the difference. The moving device moves the soot preform along the axis according to the instruction of the controller.

    摘要翻译: 提供蒸气轴向沉积(VAD)装置和方法。 VAD装置包括第一炬,第二炬,温度计,控制器和移动装置。 第一个火炬通过在布置在轴上的烟灰预制件的端部沉积烟灰来生长核心。 第二个火炬通过在核心的表面上放置一个烟灰来生长一个包裹。 温度计检测烟炱预制件的端部沿着轴的温度和芯的另一/下部的温度。 控制器计算烟灰预制件的端部的温度(T 1)与芯部的下部的温度(T 4)之间的差异,并根据差异来控制烟灰预制件的移动。 移动装置根据控制器的指示沿着轴移动烟灰预制件。

    Apparatus and method for compensating forward link rain attenuation based on adaptive transmission scheme for interactive satellite transmission system
    57.
    发明申请
    Apparatus and method for compensating forward link rain attenuation based on adaptive transmission scheme for interactive satellite transmission system 失效
    基于交互式卫星传输系统的自适应传输方案补偿前向链路衰减的装置和方法

    公开(公告)号:US20050141472A1

    公开(公告)日:2005-06-30

    申请号:US10892679

    申请日:2004-07-15

    摘要: Provided are a forward link rain attenuation compensating apparatus using an adaptive transmission scheme in an interactive satellite communication system and a method thereof. The apparatus separates the mobile stations into clear-sky mobile stations and mobile stations in the state of rain attenuation and makes the clear-sky mobile stations receive data having a high data transmission efficiency at a high-speed while making the rain attenuation mobile stations receive the data continuously although the data transmit rate is low by making each of the two kinds of mobile stations receive data frames of a different transmission method, and provides a method therefor. The apparatus includes: a resource manager, a transmitting data format converter, a forward modulator, a backward demodulator, a receiving data format converter.

    摘要翻译: 提供一种在交互式卫星通信系统中使用自适应传输方案的前向链路雨衰补偿装置及其方法。 该装置将移动台分为处于雨衰状态的空中移动台和移动台,使得天空清晰的移动台高速接收高数据传输效率的数据,同时使雨衰移移动站接收 通过使两种移动站中的每一个接收到不同传输方式的数据帧,数据传输速率低,并且提供了一种方法。 该装置包括:资源管理器,发送数据格式转换器,前向调制器,反向解调器,接收数据格式转换器。

    Apparatus for and method of processing low-speed circuit data and high-speed packet data
    58.
    发明授权
    Apparatus for and method of processing low-speed circuit data and high-speed packet data 失效
    用于处理低速电路数据和高速分组数据的装置和方法

    公开(公告)号:US06885668B1

    公开(公告)日:2005-04-26

    申请号:US09543822

    申请日:2000-04-05

    摘要: Disclosed is an apparatus and a method capable of processing low-speed circuit data lower than 64 kbps and high-speed packet data higher than 64 kbps in which a high-speed data network is constructed by converting an LCIN (local CDMA (code division multiple access) interconnection network) for supplying a communication path of packet data among sub-systems in a BSC (base station controller) of CDMA system to an ATM (asynchronous transfer mode) for processing high-speed data, installing a TSB (transcoder selector bank) or an SDU (selector distribution unit) for processing high-speed packet data higher than 64 kbps in the BSC, and linking an ATM switch to an MSC (mobile switching center) to provide a high-speed data service with respect to other network. The TSB for processing voice data and low-speed data lower than 64 kbps and high-speed data higher than 64 kbps, or the TSB for processing high-speed data higher than 64 kbps is provided to the BSC, thus allowing high-speed data processing up to 2 mbps, high-speed data service, multimedia service like a video service, and high-speed Internet service.

    摘要翻译: 公开了一种能够处理低于64kbps的低速电路数据和高于64kbps的高速分组数据的装置和方法,其中高速数据网络通过转换LCIN(本地CDMA(码分多址) 接入)互连网络),用于将CDMA系统的BSC(基站控制器)中的子系统之间的分组数据的通信路径提供给用于处理高速数据的ATM(异步传输模式),安装TSB(代码转换器选择器组 )或用于在BSC中处理高于64kbps的高速分组数据的SDU(选择器分配单元),以及将ATM交换机链接到MSC(移动交换中心)以提供关于其他网络的高速数据服务 。 用于处理语音数据和低于64kbps的低速数据的TSB和高于64kbps的高速数据,或用于处理高于64kbps的高速数据的TSB提供给BSC,从而允许高速数据 处理高达2 Mbps,高速数据服务,视频服务等多媒体服务,高速上网服务。

    Method and apparatus for compensating I/Q imbalance by using variable loop gain in quadrature demodulator
    59.
    发明申请
    Method and apparatus for compensating I/Q imbalance by using variable loop gain in quadrature demodulator 失效
    通过在正交解调器中使用可变环路增益来补偿I / Q不平衡的方法和装置

    公开(公告)号:US20050069055A1

    公开(公告)日:2005-03-31

    申请号:US10839383

    申请日:2004-05-04

    摘要: An apparatus and method for compensating an imbalance of phase and gain between I-channel and Q-channel by using variable loop gains is disclosed. The apparatus includes: a phase error generator for generating a phase error signal by using the I-channel signal and the Q-channel signal; an average value calculator for calculating an average value of the phase error signal; a comparator for comparing the average value with a predetermined threshold; a selector for selecting a loop gain value among a set of loop gains based on the comparison result; a phase imbalance generator for generating a phase imbalance by using the selected loop gain value; and a compensator for compensating the Q-channel signal based on the phase imbalance.

    摘要翻译: 公开了一种用于通过使用可变环路增益来补偿I信道和Q信道之间的相位和增益不平衡的装置和方法。 该装置包括:相位误差发生器,用于通过使用I信道信号和Q信道信号产生相位误差信号; 用于计算相位误差信号的平均值的平均值计算器; 用于将所述平均值与预定阈值进行比较的比较器; 用于根据比较结果在一组循环增益中选择一个环路增益值的选择器; 相位不平衡发生器,用于通过使用所选择的环路增益值来产生相位不平衡; 以及用于基于相位不平衡来补偿Q通道信号的补偿器。