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1. 发明申请

WO2010080823A1 FREQUENCY DRIFT ESTIMATION FOR LOW COST OUTDOOR UNIT 审中-公开
标题翻译：低成本户外单位的频率估计
公开(公告)号：WO2010080823A1
公开(公告)日：2010-07-15
申请号：PCT/US2010/020246
申请日：2010-01-06
申请人： THE DIRECTV GROUP, INC. , POPOLI, Robert, F.
发明人： POPOLI, Robert, F.
IPC分类号： H03J7/04
CPC分类号： H04H40/90 , H03J7/04
摘要： Systems and devices for controlling frequency drift in satellite broadcast systems. A receiver antenna system for a direct broadcast satellite signal communications system in accordance with one or more embodiments of the present invention comprises an oscillator, a mixer, coupled to the oscillator, for converting satellite signals at a first frequency to signals at an intermediate frequency, an analog-to-digital (A/D) converter, coupled to the mixer, for receiving the signals at the intermediate frequency and for converting the signals at the intermediate frequency at near-real-time to a digital data stream, a Digital Signal Processor (DSP), coupled to the A/D converter, for processing the digital data stream, and a drift estimator, coupled to the DSP, the drift estimator determining a frequency drift of the oscillator, wherein the receiver antenna system corrects the frequency drift of the oscillator using the determined frequency drift.
摘要翻译：用于控制卫星广播系统中频率漂移的系统和设备。根据本发明的一个或多个实施例的用于直播广播卫星信号通信系统的接收机天线系统包括耦合到振荡器的振荡器，混频器，用于将第一频率的卫星信号转换为中频信号，耦合到混频器的模拟数字（A / D）转换器，用于接收中频处的信号，并将接近实时的中频信号转换成数字数据流;数字信号耦合到A / D转换器的用于处理数字数据流的处理器（DSP）和耦合到DSP的漂移估计器，漂移估计器确定振荡器的频率漂移，其中接收器天线系统校正频率漂移的振荡器使用确定的频率漂移。

2. 发明申请

WO2008005452A2 METHOD FOR SUPPRESSION OF OFDM ENERGY SPECTRAL DENSITY FOR MINIMIZATION OF OUT OF BAND EMISSION OR UTILIZATION OF FRACTURED SPECTRUM 审中-公开
标题翻译：抑制OFDM能量谱密度以最小化带外发射或破裂谱利用的方法
公开(公告)号：WO2008005452A2
公开(公告)日：2008-01-10
申请号：PCT/US2007/015386
申请日：2007-07-02
申请人： THE DIRECTV GROUP, INC. , POPOLI, Robert, F. , NORIN, John, L.
发明人： POPOLI, Robert, F. , NORIN, John, L.
IPC分类号： H04L27/26
CPC分类号： H04L27/2602
摘要： The Energy spectral density of OFDM signals inherently rolls off slowly. Slow OFDM spectral rolloff has system level implications traditionally mitigated by some combination of the following: addition of bandlimiting filtering; use of significant guard bands of zeroed tones; and, guard time shaping. Each of these techniques negatively impact system performance and/or flexibility. This application presents a methodology for active cancellation of out of band spectral energy. The technique can be used by itself or in conjunction with above traditional methods to help control out of band emission. Examples of the use of the new technique are provided. Computational cost of the new technique is also discussed.
摘要翻译： OFDM信号的能量谱密度固有地慢慢滚降。慢速OFDM频谱滚降具有传统上由以下的某种组合减轻的系统级含义：增加带限滤波; 使用重要音调的重要保护频带; 和保卫时间塑造。这些技术都会对系统性能和/或灵活性产生负面影响。此应用程序提供了主动消除带外频谱能量的方法。该技术可以单独使用或与上述传统方法结合使用，以帮助控制带外发射。提供了使用新技术的例子。还讨论了新技术的计算成本。

3. 发明申请

WO2014204858A1 ROTATION POINTED ANTENNA FOR FIXED WIRELESS WIDE AREA NETWORKS 审中-公开
标题翻译：固定无线宽带网络的旋转指向天线
公开(公告)号：WO2014204858A1
公开(公告)日：2014-12-24
申请号：PCT/US2014/042551
申请日：2014-06-16
申请人： THE DIRECTV GROUP, INC.
发明人： NORIN, John, L. , POPOLI, Robert, F. , SHAH, Dipak, M.
IPC分类号： H01Q1/12 , H01Q1/24 , H01Q1/42 , H01Q3/04 , H01Q19/12 , H01Q21/28
CPC分类号： H01Q1/1257 , H01Q1/1228 , H01Q1/241 , H01Q1/42 , H01Q3/04 , H01Q19/12 , H01Q21/28 , Y02D70/124 , Y02D70/126 , Y02D70/20
摘要： An apparatus and method for combining signals received from a direct broadcast satellite system with signals received from a wireless network, includes a satellite antenna for receiving the signals from the direct broadcast satellite system; and a wireless network antenna, co-located with the satellite antenna, for receiving the signals from the wireless network. The wireless network antenna includes an antenna assembly that is rotated by a controller based on characteristics of the signals received from the wireless network. The controller energizes and de-energizes a motor to mechanically rotate the antenna assembly to properly align the wireless network antenna to communicate with the wireless network. The wireless network antenna comprises a closed cylinder, wherein the antenna assembly is rotatably mounted within the closed cylinder, such that, upon command from the controller, the motor engages the antenna assembly to mechanically rotate the antenna assembly about a central axis of the closed cylinder.
摘要翻译：一种用于将从直接广播卫星系统接收的信号与从无线网络接收的信号组合的装置和方法，包括用于从直接广播卫星系统接收信号的卫星天线; 以及与卫星天线共处的用于从无线网络接收信号的无线网络天线。无线网络天线包括基于从无线网络接收的信号的特性由控制器旋转的天线组件。控制器为电动机通电和断电以机械地旋转天线组件以使无线网络天线正确地对准无线网络进行通信。无线网络天线包括封闭的气缸，其中天线组件可旋转地安装在闭合的气缸内，使得根据来自控制器的指令，马达接合天线组件以使天线组件围绕闭合气缸的中心轴线机械地旋转。

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