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1.发明授权公开(公告)号：US08259641B2
公开(公告)日：2012-09-04
申请号：US12190526
申请日：2008-08-12
申请人： Paul R. Anderson , Joseph Santoru , Ernest C. Chen
发明人： Paul R. Anderson , Joseph Santoru , Ernest C. Chen
IPC分类号： H04B7/185
CPC分类号： H04L27/0008 , H04B7/18526 , H04N7/20
摘要： Systems and methods are disclosed for feeder link configurations to layered modulation. One feeder link system employs feeder link spot beam to antennas in distinct coverage areas to enable frequency reuse. Another system employs narrow beam width feeder link antenna to illuminate individual satellites also enabling frequency reuse. Yet another system uses layered modulation in the feeder link. Another feeder link system employs a higher order synchronous modulation for the satellite feeder link than is used in the layered modulation downlink signals.
摘要翻译： 公开了用于馈线链路配置到分层调制的系统和方法。 一个馈线链路系统使用馈线链路点波束到不同覆盖区域中的天线，以实现频率重用。 另一个系统采用窄波束宽度馈线链路天线来照亮单个卫星，同时也实现频率重用。 另一种系统在馈线链路中使用分层调制。 另一个馈线链路系统对卫星馈线链路采用比在分层调制下行链路信号中使用的更高阶同步调制。
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2.发明授权Methods and apparatuses for determining scrambling codes for signal transmission 有权用于确定信号传输的扰码的方法和装置公开(公告)号：US07961880B2
公开(公告)日：2011-06-14
申请号：US11510244
申请日：2006-08-25
申请人： Judith Wang , Guangcai Zhou , Joseph Santoru , Ernest C. Chen , Shamik Maitra , Dennis Lai , Tung-Sheng Lin
发明人： Judith Wang , Guangcai Zhou , Joseph Santoru , Ernest C. Chen , Shamik Maitra , Dennis Lai , Tung-Sheng Lin
CPC分类号： H04K1/00 , H04B2201/709709 , H04J13/0029 , H04J13/10 , H04L1/0057 , H04L1/0072 , H04L25/03866 , H04N7/1675 , H04N21/6112 , H04N21/6143
摘要： Methods and apparatuses for determining scrambling codes for minimizing co-channel interference in a communication system. A method in accordance with the present invention comprises defining at least one initial default sequence, generating a scrambling code, scrambling a signal using the generated scrambling code, comparing the scrambled signal with all other scrambled signals meeting a specified criterion, and saving the scrambling code word if the comparison determines that the signal scrambled with the scrambling code also meets the specified criterion. The scrambling codes can be compared with each other for cross-correlation purposes to determine whether they meet the specified criterion based on laboratory testing.
摘要翻译： 用于确定用于使通信系统中的同信道干扰最小化的扰码的方法和装置。 根据本发明的方法包括定义至少一个初始默认序列，产生扰码，使用所生成的扰码对信号进行加扰，将加扰信号与满足指定标准的所有其他加扰信号进行比较，并且保存扰码 如果比较确定用扰码加扰的信号也满足指定的标准。 可以将扰码相互比较以进行互相关，以确定它们是否符合基于实验室测试的指定标准。
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公开(公告)号：US20090224824A1
公开(公告)日：2009-09-10
申请号：US12421485
申请日：2009-04-09
申请人： Guangcai Zhou , Tung-Sheng Lin , Dennis Lai , Joseph Santoru , Ernest C. Chen , Shamik Maitra , Cecilia Comeaux
发明人： Guangcai Zhou , Tung-Sheng Lin , Dennis Lai , Joseph Santoru , Ernest C. Chen , Shamik Maitra , Cecilia Comeaux
IPC分类号： G01R19/00
CPC分类号： H04B17/0085 , H03F1/32 , H04B17/15
摘要： Systems and methods for characterizing amplifiers. A system for characterizing an amplifier in accordance with the present invention comprises a Gaussian signal source for generating a signal in the frequency domain, a notch filter, coupled to the Gaussian Noise source, wherein the notch filter has a notch at a specified frequency and a frequency bandwidth, the frequency bandwidth encompassing the specified frequency, an Inverse Fast Fourier Transform device, coupled to an output of the notch filter, a normalization device, coupled to the Inverse Fast Fourier Transform device, an amplifier under test, coupled to the normalization device, for amplifying the signal generated by the Gaussian signal source, and a measurement device, coupled to an output of the amplifier, for measuring a power output of the amplifier in the frequency bandwidth and a noise output at the specified notch frequency, and for calculating the ratio between the power output and the noise output.
摘要翻译： 表征放大器的系统和方法。 用于表征根据本发明的放大器的系统包括用于产生频域中的信号的高斯信号源，耦合到高斯噪声源的陷波滤波器，其中陷波滤波器具有指定频率的陷波和 频率带宽，包含指定频率的频率带宽，耦合到陷波滤波器的输出的反相快速傅立叶变换装置，耦合到快速傅立叶逆变换装置的归一化装置，被测放大器，耦合到归一化装置 ，用于放大由高斯信号源产生的信号，以及耦合到放大器的输出的测量装置，用于测量放大器在频率带宽中的功率输出和在指定陷波频率下的噪声输出，并用于计算 功率输出与噪声输出之间的比例。
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公开(公告)号：US20090182796A1
公开(公告)日：2009-07-16
申请号：US12275498
申请日：2008-11-21
申请人： Ernest C. Chen , Paul R. Anderson , Joseph Santoru , Tammy G. Liu
发明人： Ernest C. Chen , Paul R. Anderson , Joseph Santoru , Tammy G. Liu
IPC分类号： G06F7/58
CPC分类号： G06F1/02 , G06F7/58 , G06F2101/14
摘要： A method for generating a set of random numbers with statistics represented by a cumulative density function includes generating a set of uniformly spaced samples between an upper limit and a lower limit. Each of the uniformly spaced samples are then mapped to a corresponding value on a cumulative density function curve. The set of uniformly spaced samples are then scrambled to randomize the samples. Companding may also be incorporated in the sample generation process.
摘要翻译： 用累积密度函数表示的统计量生成一组随机数的方法包括在上限和下限之间生成一组均匀间隔的样本。 然后将每个均匀间隔的样本映射到累积密度函数曲线上的相应值。 然后对该组均匀间隔的样本进行加扰以使样本随机化。 压实也可以并入样品生成过程中。
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公开(公告)号：US20090097589A1
公开(公告)日：2009-04-16
申请号：US12329456
申请日：2008-12-05
IPC分类号： H04L27/00
CPC分类号： H04L27/3488 , H04B7/18515 , H04B17/318 , H04L1/20 , H04L27/183 , H04L27/227 , H04L27/366 , H04L2027/0061
摘要： A method and apparatus for transmitting and receiving a coded signal having an upper layer signal and a lower layer signal is disclosed. The method comprises the steps of combining the upper layer signal and the lower layer signal, encoding the combined upper layer signal and lower layer signal, delaying the upper layer signal, modulating the delayed upper layer signal, modulating the lower layer signal, transmitting the delayed upper layer signal and transmitting the lower layer signal. The apparatus comprises an encoder, for encoding a combined upper layer signal and lower layer signal, a delay, communicatively coupled to the encoder, for delaying the upper layer signal, a first modulator, for modulating the delayed upper layer signal, a second modulator, for modulating the lower layer signal, a transmitter, communicatively coupled to the first modulator, for transmitting the delayed upper layer signal, and a second transmitter, communicatively coupled to the second modulator.
摘要翻译： 公开了一种用于发送和接收具有上层信号和下层信号的编码信号的方法和装置。 该方法包括以下步骤：组合上层信号和下层信号，编码组合上层信号和下层信号，延迟上层信号，调制延迟的上层信号，调制下层信号，发送延迟的 上层信号并传输下层信号。 该装置包括用于编码组合的上层信号和下层信号的编码器，通信地耦合到编码器的用于延迟上层信号的延迟，用于调制延迟的上层信号的第一调制器，第二调制器， 用于调制下层信号的发射机，通信地耦合到第一调制器，用于发送延迟的上层信号;以及第二发射机，通信地耦合到第二调制器。
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6.发明申请公开(公告)号：US20090073917A1
公开(公告)日：2009-03-19
申请号：US12190526
申请日：2008-08-12
申请人： Paul R. Anderson , Joseph Santoru , Ernest C. Chen
发明人： Paul R. Anderson , Joseph Santoru , Ernest C. Chen
IPC分类号： H04B7/185
CPC分类号： H04L27/0008 , H04B7/18526 , H04N7/20
摘要： Systems and methods are disclosed for feeder link configurations to layered modulation. One feeder link system employs feeder link spot beam to antennas in distinct coverage areas to enable frequency reuse. Another system employs narrow beam width feeder link antenna to illuminate individual satellites also enabling frequency reuse. Yet another system uses layered modulation in the feeder link. Another feeder link system employs a higher order synchronous modulation for the satellite feeder link than is used in the layered modulation downlink signals.
摘要翻译： 公开了用于馈线链路配置到分层调制的系统和方法。 一个馈线链路系统使用馈线链路点波束到不同覆盖区域中的天线，以实现频率重用。 另一个系统采用窄波束宽度馈线链路天线来照亮单个卫星，同时也实现频率重用。 另一种系统在馈线链路中使用分层调制。 另一个馈线链路系统对卫星馈线链路采用比在分层调制下行链路信号中使用的更高阶同步调制。
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公开(公告)号：US07467170B1
公开(公告)日：2008-12-16
申请号：US10669211
申请日：2003-09-23
申请人： Ernest C. Chen , Paul R. Anderson , Joseph Santoru , Tammy G. Liu
发明人： Ernest C. Chen , Paul R. Anderson , Joseph Santoru , Tammy G. Liu
IPC分类号： G06F1/02
CPC分类号： G06F1/02 , G06F17/18 , G06F2101/14
摘要： A method for generating a set of random numbers with statistics represented by a cumulative density function (CDF) includes generating a set of uniformly spaced samples between an upper limit and a lower limit. Each of the uniformly spaced samples are then mapped to a corresponding value on a cumulative density function curve. The set of uniformly spaced samples are then scrambled to randomize the samples. Companding may also be incorporated in the sample generation process.
摘要翻译： 用累积密度函数（CDF）表示的统计量来生成一组随机数的方法包括在上限和下限之间生成一组均匀间隔的样本。 然后将每个均匀间隔的样本映射到累积密度函数曲线上的相应值。 然后对该组均匀间隔的样本进行加扰以使样本随机化。 压实也可以并入样品生成过程中。
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公开(公告)号：US20080129374A1
公开(公告)日：2008-06-05
申请号：US11870955
申请日：2007-10-11
申请人： Guangcai Zhou , Tung-Sheng Lin , Dennis Lai , Joseph Santoru , Ernest C. Chen , Shamik Maitra , Cecilia Comeaux
发明人： Guangcai Zhou , Tung-Sheng Lin , Dennis Lai , Joseph Santoru , Ernest C. Chen , Shamik Maitra , Cecilia Comeaux
IPC分类号： G01R19/00
CPC分类号： H04B17/0085 , H03F1/32 , H04B17/15
摘要： Systems and methods for characterizing amplifiers. A system for characterizing an amplifier in accordance with the present invention comprises a Gaussian signal source for generating a signal in the frequency domain, a notch filter, coupled to the Gaussian Noise source, wherein the notch filter has a notch at a specified frequency and a frequency bandwidth, the frequency bandwidth encompassing the specified frequency, an Inverse Fast Fourier Transform device, coupled to an output of the notch filter, a normalization device, coupled to the Inverse Fast Fourier Transform device, an amplifier under test, coupled to the normalization device, for amplifying the signal generated by the Gaussian signal source, and a measurement device, coupled to an output of the amplifier, for measuring a power output of the amplifier in the frequency bandwidth and a noise output at the specified notch frequency, and for calculating the ratio between the power output and the noise output.
摘要翻译： 表征放大器的系统和方法。 用于表征根据本发明的放大器的系统包括用于产生频域中的信号的高斯信号源，耦合到高斯噪声源的陷波滤波器，其中陷波滤波器具有指定频率的陷波和 频率带宽，包含指定频率的频率带宽，耦合到陷波滤波器的输出的反相快速傅立叶变换装置，耦合到快速傅立叶逆变换装置的归一化装置，被测放大器，耦合到归一化装置 ，用于放大由高斯信号源产生的信号，以及耦合到放大器的输出的测量装置，用于测量放大器在频率带宽中的功率输出和在指定陷波频率下的噪声输出，并用于计算 功率输出与噪声输出之间的比例。
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9.发明申请Method and apparatus for receiving dual band signals from a common orbital location with an outdoor unit using a frequency selective subreflector and additional antenna feed 有权用于使用频率选择性子反射器和附加天线馈送的室外单元从公共轨道位置接收双频带信号的方法和装置公开(公告)号：US20080120654A1
公开(公告)日：2008-05-22
申请号：US11602823
申请日：2006-11-21
CPC分类号： H04N7/20 , H01Q5/45 , H01Q19/13 , H01Q19/19 , H01Q19/192 , H04B7/18515 , H04H40/90 , Y10S343/02
摘要： A system 10 that includes a first satellite 14 at a first orbital slot B includes a first transponder 32 generating a first downlink signal at a first frequency and a second downlink signal at a second frequency. An outdoor unit 50 is directed toward the first satellite 14. The outdoor unit includes a support structure 80 and a reflector 64 coupled to the support structure 80 and reflecting the first downlink signal from a first satellite. A first reflector reflects the second downlink signal from the first satellite. A first feed 66 is coupled to the support structure and receives the first downlink signal. A reflector 72 having frequency selective surface 74 coupled to the support structure 80 reflects the second downlink signal and passes the first downlink signal therethrough. The second feed 70B is coupled to the support structure 80 and receives the second downlink signal reflected from the frequency selective surface 74.
摘要翻译： 包括在第一轨道时隙B的第一卫星14的系统10包括以第一频率产生第一下行链路信号和第二频率的第二下行链路信号的第一应答器32。 室外单元50指向第一卫星14.室外单元包括支撑结构80和耦合到支撑结构80的反射器64，并且反射来自第一卫星的第一下行链路信号。 第一反射器反射来自第一卫星的第二下行链路信号。 第一馈送66耦合到支持结构并且接收第一下行链路信号。 具有耦合到支撑结构80的频率选择表面74的反射器72反射第二下行链路信号并且通过第一下行链路信号。 第二馈送70B耦合到支持结构80并且接收从频率选择表面74反射的第二下行链路信号。
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公开(公告)号：US20070146223A1
公开(公告)日：2007-06-28
申请号：US11712327
申请日：2007-02-28
申请人： Kesse Ho , John Norin , Ernest Chen , Joseph Santoru
发明人： Kesse Ho , John Norin , Ernest Chen , Joseph Santoru
IPC分类号： H01Q13/00
CPC分类号： H01Q25/007 , H01Q5/45 , H01Q19/17
摘要： A method and apparatus for receiving signals transmitted from a plurality of communications satellites. An apparatus in accordance with the present invention comprises a reflecting surface having a focal point, and a plurality of low noise block down converters with feedhorns (LNBFs), each LNBF having a boresight, wherein at least a first LNBF receives signals in a first frequency band transmitted from a first communication satellite location that are focused at a first focal point and at least a second LNBF receives signals in a second frequency band transmitted from a second satellite location that are focused at a second focal point, wherein the boresight of the first LNBF is closer to the first focal point than the boresight of the second LNBF is to the second focal point.
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