METHOD AND APPARATUS FOR BI-DIRECTIONAL DATA SERVICES AND LIVE TELEVISION PROGRAMMING TO MOBILE PLATFORMS
    1.
    发明申请
    METHOD AND APPARATUS FOR BI-DIRECTIONAL DATA SERVICES AND LIVE TELEVISION PROGRAMMING TO MOBILE PLATFORMS 审中-公开
    用于双向数据服务的方法和装置以及移动平台的实时电视编程

    公开(公告)号:US20090080368A1

    公开(公告)日:2009-03-26

    申请号:US12272299

    申请日:2008-11-17

    IPC分类号: H04B7/185

    摘要: A system for bi-directional data content transfer between a plurality of mobile platforms, such as aircraft or cruise ships, and a ground-based control segment. The system includes the ground-based control segment, a space segment and a mobile system disposed on each mobile platform. The ground-based control segment includes an antenna which is used to transmit encoded RF signals representative of data content to the space segment. The space segment includes a plurality of satellite transponders, with one of the transponders being designated by the ground-based control segment to transpond the encoded RF signals to the mobile system. The mobile system includes steerable receive and transmit antennas. The receive antenna receives the encoded RF signals from the satellite transponder, which are thereafter decoded, demodulated, D/A converted by a communications subsystem and transmitted to a server. The server filters off that data content not requested by any occupants on the mobile system. A local area network (LAN) receives the remaining data content and provides same to individual users on the mobile platform in accordance with previously submitted programming requests or data input by the users at access stations associated independently with each user. The transmit antenna is used to transmit data content from laptop computers, PDAs or other user electronic devices coupled to the access stations back to the designated satellite transponder. The satellite transponder then transponds the data back to the antenna of the ground-based control segment.

    摘要翻译: 用于在诸如飞机或游轮之类的多个移动平台和基于地面的控制段之间进行双向数据内容传送的系统。 该系统包括设置在每个移动平台上的基于地面的控制段,空间段和移动系统。 基于地面的控制段包括用于将表示数据内容的编码RF信号发送到空间段的天线。 空间段包括多个卫星转发器,其中一个应答器由基于地面的控制段指定,以将编码的RF信号转发到移动系统。 移动系统包括可引导的接收和发射天线。 接收天线接收来自卫星转发器的经编码的RF信号,其随后由通信子系统进行解码,解调,D / A转换并发送到服务器。 服务器过滤掉移动系统上任何乘客未请求的数据内容。 局域网(LAN)接收剩余的数据内容,并根据先前提交的编程请求或与每个用户独立关联的接入站处的用户输入的数据向移动平台上的个别用户提供相同的数据。 发射天线用于将耦合到接入站的膝上型计算机,PDA或其他用户电子设备的数据内容传送回指定的卫星转发器。 然后,卫星转发器将数据转发回地面控制段的天线。

    Batch round robin polling method for return link communications between a mobile platform and a base station
    2.
    发明授权
    Batch round robin polling method for return link communications between a mobile platform and a base station 有权
    用于移动平台和基站之间的返回链路通信的批量循环轮询方法

    公开(公告)号:US06975616B2

    公开(公告)日:2005-12-13

    申请号:US09851535

    申请日:2001-05-08

    IPC分类号: H04B7/185 H04L12/56 H04J3/14

    CPC分类号: H04B7/18508

    摘要: A polling system and method for establishing forward and return communication links with a plurality of mobile platforms operating within a given coverage region, and further which provides preliminary return channel assignments with each polling message. Each polling message further has an associated ID code designating a particular mobile platform which is registered with a network operations center (NOC) of the system. If the mobile platform does not respond on its designated preliminary return channel within a given time period (e.g., 5 seconds) than the preliminary return channel is returned to a database of available return channels. Polling is carried out more expeditiously because groups of mobile platforms are polled simultaneously and provided with preliminary return channels which accompany the polling messages, and which direct each mobile platform to a designated return channel to use in establishing a return communications link. Polling groups are further sized according to available communication resources.

    摘要翻译: 一种用于建立与在给定覆盖区域内操作的多个移动平台的前向和往返通信链路的轮询系统和方法,并且还提供每个轮询消息的初步返回信道分配。 每个轮询消息还具有指定与系统的网络操作中心(NOC)注册的特定移动平台的相关联的ID代码。 如果移动平台在给定的时间段(例如5秒)内在其指定的初步返回信道上没有响应,则初始返回信道被返回到可用返回信道的数据库。 轮询更快地进行,因为移动平台组被同时轮询并提供伴随轮询消息的初步返回信道,并且将每个移动平台定向到指定的返回信道以用于建立返回通信链路。 轮询组根据可用的通信资源进一步调整大小。

    Method and apparatus using variations in power modulation to determine an interfering mobile terminal
    3.
    发明授权
    Method and apparatus using variations in power modulation to determine an interfering mobile terminal 有权
    使用功率调制变化来确定干扰移动终端的方法和装置

    公开(公告)号:US07155168B2

    公开(公告)日:2006-12-26

    申请号:US10022981

    申请日:2001-12-17

    IPC分类号: H04B17/00

    CPC分类号: H04B7/18508 H04W52/08

    摘要: A method and apparatus for identifying which one of a plurality of mobile terminals in communication with a ground-based base station, via a transponded satellite, is causing interference with a non-target satellite orbiting in a vicinity of the transponded satellite. The method involves using the base station to sequentially check each of the mobile terminals to identify which one is causing the interference. The check is made by the base station commanding each mobile terminal to modulate the power level of its transmitted signals and then checking with an operator of the interfered with non-target satellite to see if the interference condition has changed. Once the mobile terminal causing the interference condition is identified, the base station can command the mobile terminal to reduce its transmit power accordingly.

    摘要翻译: 一种用于识别通过转发卫星与地面基站进行通信的多个移动终端中的哪一个的方法和装置正在对转发卫星周围的非目标卫星进行轨道运动。 该方法包括使用基站顺序地检查每个移动终端以识别哪一个正在引起干扰。 由基站指令每个移动终端对其发射信号的功率电平进行检查,然后与受干扰的非目标卫星的操作者进行检查,以查看干扰状况是否改变。 一旦确定了造成干扰状况的移动终端,则基站可以命令移动终端相应地降低其发射功率。

    Beam alignment system and method for an antenna
    4.
    发明授权
    Beam alignment system and method for an antenna 有权
    光束对准​​系统及天线方法

    公开(公告)号:US06417803B1

    公开(公告)日:2002-07-09

    申请号:US09825575

    申请日:2001-04-03

    IPC分类号: H01Q300

    CPC分类号: H01Q1/1257 G01S3/20 H01Q1/28

    摘要: An apparatus and method for correcting antenna beam misalignment between a transmit antenna and a receive antenna on a mobile platform such as an aircraft. The beam alignment method makes use of sequential lobing to determine the pointing angles in azimuth and elevation of a receive beam received by the receive antenna. For the transmit antenna, sequential lobing is used for the transmit antenna beam transmitted to a transponded satellite and then to a ground station. The ground station performs received signal strength indicator (RSSI) measurements and transmits these measurements back to the aircraft 16 via the target satellite. From these measurements, the beam misalignment between the receive and transmit antenna beams, both in azimuth and elevation, can be determined and a correction applied to the transmit antenna. The beam alignment procedure of the present invention can be implemented without interfering with normal use of the transmit and receive antennas and further ensures that interference with satellites adjacent to the target satellite will not occur during return link transmissions from the aircraft to the ground station.

    摘要翻译: 一种用于校正诸如飞行器的移动平台上的发射天线和接收天线之间的天线波束未对准的装置和方法。 光束对准​​方法利用顺序波纹来确定由接收天线接收的接收波束的方位角和仰角的指向角度。 对于发射天线,顺序波峰被用于发送到转发卫星然后到地面站的发射天线波束。 地面站执行接收信号强度指示(RSSI)测量,并通过目标卫星将这些测量值发送回飞机16。 从这些测量可以确定方位角和仰角之间的接收和发射天线波束之间的波束未对准,并且将校正应用于发射天线。 可以实现本发明的光束对准过程,而不干扰发射和接收天线的正常使用,并进一步确保在从飞行器到地面站的返回链路传输期间不会发生与目标卫星相邻的卫星的干扰。

    Fiber-optic feed network using series/parallel connected light emitting
opto-electronic components
    5.
    发明授权
    Fiber-optic feed network using series/parallel connected light emitting opto-electronic components 失效
    光纤馈电网络采用串联/并联发光光电元件

    公开(公告)号:US4832433A

    公开(公告)日:1989-05-23

    申请号:US948339

    申请日:1986-12-31

    IPC分类号: H01Q3/26 H04B10/00

    CPC分类号: H04B10/806 H01Q3/2676

    摘要: The corporate feed network employs light emitting opto-electronic components, such as laser diodes (12), connected together in a string (14) for distributing RF, microwave, MMW, digital signals, and pulse modulated light. Each diode provides two ports or facets which are coupled to optical fibers (16, 18) to connect to an active phased array antenna, for example. The diodes are selected in number and impedance to provide a good wideband impedance match to the RF/microwave/MMW/digital driving source. Multiple series strings of diodes may be employed, connected in parallel for larger corporate feed structures.

    摘要翻译: 公司饲料网络采用发光光电子部件,例如用于分配RF,微波,MMW,数字信号和脉冲调制光的串(14)连接在一起的激光二极管(12)。 例如,每个二极管提供耦合到光纤(16,18)以连接到有源相控阵天线的两个端口或小面。 二极管的数量和阻抗被选择,以提供与RF /微波/ MMW /数字驱动源的良好的宽带阻抗匹配。 可以使用多个串联串联的二极管,并联连接用于较大的公司进料结构。

    Soft handoff method and apparatus for mobile vehicles using directional antennas
    6.
    发明授权
    Soft handoff method and apparatus for mobile vehicles using directional antennas 有权
    使用定向天线的移动车辆的软切换方法和装置

    公开(公告)号:US09306657B2

    公开(公告)日:2016-04-05

    申请号:US11314647

    申请日:2005-12-21

    摘要: A method of providing a communication link for a mobile platform. The method may involve generating a single beam and controlling the single beam to simultaneously generate first and second communication lobes from the single beam, with the first communication lobe being steered to communicate with a first base transceiver station (BTS). The method may further involve simultaneously using the second communication lobe to communicate with the second BTS and fading out the first lobe so that communication with the mobile platform is transferred to the second BTS.

    摘要翻译: 一种为移动平台提供通信链路的方法。 该方法可以包括生成单个波束并且控制单个波束以同时从单个波束产生第一和第二通信波瓣,其中第一通信波瓣被引导以与第一基站收发器(BTS)进行通信。 该方法可以进一步包括同时使用第二通信波瓣与第二BTS进行通信,并使第一波瓣衰落,使得与移动平台的通信被传送到第二BTS。

    BLOWER SYSTEM TO REMOVE PRECIPITATION FROM AN ANTENNA
    7.
    发明申请
    BLOWER SYSTEM TO REMOVE PRECIPITATION FROM AN ANTENNA 有权
    从天线去除降水的鼓风系统

    公开(公告)号:US20100088924A1

    公开(公告)日:2010-04-15

    申请号:US12251668

    申请日:2008-10-15

    IPC分类号: F26B21/00

    CPC分类号: H01Q1/002

    摘要: A blower system to remove precipitation from an antenna may include a blower air plenum extending substantially completely along one side of the antenna. A vent is in communication with the blower air plenum and extends substantially completely along the one side of the antenna to direct an airstream across a surface of the antenna to remove precipitation from the antenna. The vent may include a contour to conform to a contour of the one side of the antenna. The blower system may also include an air compressor to force air into the blower air plenum and out the vent to form the airstream flowing across the surface of the antenna.

    摘要翻译: 用于从天线去除沉淀物的鼓风机系统可以包括基本上完全沿着天线的一侧延伸的鼓风机空气室。 排气口与鼓风机空气通风室连通,并且沿着天线的一侧基本上完全延伸,以引导空气流穿过天线的表面,以消除天线的沉淀。 通风口可以包括符合天线一侧轮廓的轮廓。 鼓风机系统还可以包括空气压缩机,以迫使空气进入鼓风机空气通风室并排出通风口以形成流过天线表面的气流。

    System and method for adaptive information rate communication
    8.
    发明申请
    System and method for adaptive information rate communication 有权
    自适应信息速率通信系统和方法

    公开(公告)号:US20070217355A1

    公开(公告)日:2007-09-20

    申请号:US11378563

    申请日:2006-03-17

    IPC分类号: H04Q7/00

    CPC分类号: H04L1/0002 H04B7/18513

    摘要: A system and method for communicating information from a base station to one or more user terminals via a forward link to a relay and distribution device is provided. The method includes determining a separate information rate for information to be transmitted from the base station to each of the user terminals. Each information rate is determined to allow successful communication with the respective user terminal and to provide a predetermined amount of link margin above a threshold energy-to-noise ratio (Eb/No) in the forward link. The method additionally includes formatting data received at the base station into a continuous time division multiplexed (TDM) data stream that includes a plurality of data frames to be transmitted to the user terminals. Each data frame is formatted to have the determined information rate of the respective user terminal destine to receive the data frame. The TDM data stream is transmitted using a single carrier of the forward link. Furthermore, the method includes continuously and dynamically adjusting the information rate of subsequent data frames for each user terminal to maintain successful communication and maintain the predetermined amount of margin as operating conditions of each user terminal change.

    摘要翻译: 提供了一种用于将信息从基站通过前向链路传送到一个或多个用户终端到中继和分配设备的系统和方法。 该方法包括为从基站发送到每个用户终端的信息确定单独的信息速率。 确定每个信息速率以允许与相应用户终端的成功通信,并且提供高于前向链路中的阈值能量 - 噪声比(Eb / No)的预定量的链路余量。 该方法还包括将在基站处接收的数据格式化成包括要发送给用户终端的多个数据帧的连续时分复用(TDM)数据流。 将每个数据帧格式化为具有相应用户终端确定的信息速率,以达到接收数据帧的目的。 使用前向链路的单载波来发送TDM数据流。 此外,该方法包括连续且动态地调整每个用户终端的后续数据帧的信息速率,以保持成功的通信,并且在每个用户终端的操作条件改变时保持预定量的余量。

    RETURN LINK DESIGN FOR PSD LIMITED MOBILE SATELLITE COMMUNICATION SYSTEMS
    9.
    发明申请
    RETURN LINK DESIGN FOR PSD LIMITED MOBILE SATELLITE COMMUNICATION SYSTEMS 有权
    返回链路设计PSD有限公司的移动卫星通信系统

    公开(公告)号:US20070026795A1

    公开(公告)日:2007-02-01

    申请号:US11536111

    申请日:2006-09-28

    IPC分类号: H04B7/185

    摘要: A system and method for managing access to a satellite-based transponder by a plurality of aircraft each having a mobile radio frequency (RF) system. The system employs a ground-based, central control system for managing access to the satellite-based transponder so that the aggregate power spectral density (PSD) of the RF signals of all the mobile systems does not exceed, at any time, limits established by regulatory agencies to prevent interference between satellite systems. This is accomplished by a dual control loop arrangement for monitoring the signal-to-noise ratio (Eb/No) of the RF signal transmitted by the satellite-based transponder. A ground-based control loop is used whereby a ground-based central controller monitors the Eb/No and transmits commands to the aircraft (via the satellite transponder) to maintain the Eb/No of the transmitted signal within a predetermined range. A fast scan angle compensation is used by the mobile system of the aircraft to implement another control loop to further adjust the transmit power. This control loop maintains the Eb/No of the signal transmitted to the satellite-based transponder at the commanded level inbetween updates from the ground-based central controller.

    摘要翻译: 一种用于管理由具有移动射频(RF)系统的多个飞行器对基于卫星的应答器的访问的系统和方法。 该系统采用基于地面的中央控制系统来管理对基于卫星的应答器的访问,使得所有移动系统的RF信号的总功率谱密度(PSD)在任何时间都不超过由 监管机构防止卫星系统之间的干扰。 这通过用于监测由卫星转发器发送的RF信号的信噪比(Eb / No)的双重控制环路布置来实现。 使用基于地面的控制回路,由此基于地面的中央控制器监视Eb /否并且向飞行器(经由卫星转发器)发送命令以将发送的信号的Eb / No维持在预定范围内。 飞行器的移动系统使用快速扫描角补偿来实现另一个控制回路,以进一步调整发射功率。 该控制回路将来自基于地面的中央控制器的更新之间的指令级别的信号的Eb / No维持在基于卫星的应答器上。

    Return link design for PSD limited mobile satellite communication systems

    公开(公告)号:US07054593B2

    公开(公告)日:2006-05-30

    申请号:US09884555

    申请日:2001-06-19

    IPC分类号: H04B7/185

    摘要: A system and method for managing access to a satellite-based transponder by a plurality of aircraft each having a mobile radio frequency (RF) system. The system employs a ground-based, central control system for managing access to the satellite-based transponder so that the aggregate power spectral density (PSD) of the RF signals of all the mobile systems does not exceed, at any time, limits established by regulatory agencies to prevent interference between satellite systems. This is accomplished by a dual control loop arrangement for monitoring the signal-to-noise ratio (Eb/No) of the RF signal transmitted by the satellite-based transponder. A ground-based control loop is used whereby a ground-based central controller monitors the Eb/No and transmits commands to the aircraft (via the satellite transponder) to maintain the Eb/No of the transmitted signal within a predetermined range. A fast scan angle compensation is used by the mobile system of the aircraft to implement another control loop to further adjust the transmit power. This control loop maintains the Eb/No of the signal transmitted to the satellite-based transponder at the commanded level inbetween updates from the ground-based central controller.