专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US07859330B2 Optimized uplink efficiencies for transmission of satellite data 有权
标题翻译：优化卫星数据传输的上行效率
公开(公告)号：US07859330B2
公开(公告)日：2010-12-28
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。

22. 发明授权

US07844213B2 Reducing spectral roll-off factors to increase spectral efficiency 有权
标题翻译：降低光谱衰减因子，提高光谱效率
公开(公告)号：US07844213B2
公开(公告)日：2010-11-30
申请号：US11831821
申请日：2007-07-31
申请人： Ernest C. Chen , Joseph Santoru , Shamik Maitra , Dennis Lai , Tung-Sheng Lin , Guangcai Zhou
发明人： Ernest C. Chen , Joseph Santoru , Shamik Maitra , Dennis Lai , Tung-Sheng Lin , Guangcai Zhou
IPC分类号： H04H1/00
CPC分类号： H04B7/18515
摘要： Systems for delivering a plurality of broadcast programs where the transmitter and receiver roll-off factors are mismatched. A system in accordance with the present invention comprises a transmitter comprising a modulator, and a plurality of receivers, each receiver in the plurality of receivers receiving the plurality of broadcast programs, each receiver in the plurality of receivers further comprising a demodulator; wherein the modulator has a first root-raised cosine filter having a first roll-off factor and each receiver has a second root-raised cosine filter having a second roll-off factor, the first roll-off factor being smaller than the second roll-off factor.
摘要翻译：用于传送发射机和接收机滚降因子不匹配的多个广播节目的系统。根据本发明的系统包括：发射机，包括调制器和多个接收机，所述多个接收机中的每个接收机接收所述多个广播节目，所述多个接收机中的每个接收机还包括解调器; 其中所述调制器具有具有第一滚降因子的第一根升余弦滤波器，并且每个接收器具有具有第二滚降因子的第二根升余弦滤波器，所述第一滚降因子小于所述第二滚降系数，关闭因素。

23. 发明授权

US07551736B2 Physical layer header scrambling in satellite broadcast systems 有权
标题翻译：卫星广播系统中的物理层报头扰频
公开(公告)号：US07551736B2
公开(公告)日：2009-06-23
申请号：US11102958
申请日：2005-04-11
申请人： Lin-Nan Lee , Feng-Wen Sun , Adam Von Ancken , Joseph Santoru , Ernest C. Chen , Shamik Maitra , Dennis Lai , Guangcai Zhou , Tung-Sheng Lin
发明人： Lin-Nan Lee , Feng-Wen Sun , Adam Von Ancken , Joseph Santoru , Ernest C. Chen , Shamik Maitra , Dennis Lai , Guangcai Zhou , Tung-Sheng Lin
IPC分类号： H04N7/167 , H04B15/00
CPC分类号： H04N5/211 , H04B7/18513 , H04B7/1858 , H04N7/16 , H04N7/163 , H04N7/1675 , H04N7/17318 , H04N21/2347 , H04N21/4405 , H04N21/6143
摘要： Methods and apparatuses for minimizing co-channel interference in communications systems are disclosed. A method in accordance with the present invention comprises scrambling a first header of the first signal using a first scrambling code, scrambling a second header of the second signal using a second scrambling code, and transmitting the first signal and the second signal with the scrambled first header and the scrambled second header over different channels of the communication system.
摘要翻译：公开了用于最小化通信系统中的同信道干扰的方法和装置。根据本发明的方法包括使用第一扰码对第一信号的第一报头进行加扰，使用第二加扰码对第二信号的第二报头进行加扰，并且以第一加扰方式发送第一信号和第二信号报头和通信系统的不同信道上的加扰的第二报头。

24. 发明授权

US07512189B2 Lower complexity layered modulation signal processor 有权
标题翻译：较低复杂度的分层调制信号处理器
公开(公告)号：US07512189B2
公开(公告)日：2009-03-31
申请号：US10532632
申请日：2003-10-10
申请人： Ernest C. Chen , Weizheng W. Wang , Guangcai Zhou , Tung-Sheng Lin , Joseph Santoru
发明人： Ernest C. Chen , Weizheng W. Wang , Guangcai Zhou , Tung-Sheng Lin , Joseph Santoru
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。

25. 发明授权

US07706466B2 Lower complexity layered modulation signal processor 失效
标题翻译：较低复杂度的分层调制信号处理器
公开(公告)号：US07706466B2
公开(公告)日：2010-04-27
申请号：US12329456
申请日：2008-12-05
申请人： Ernest C. Chen , Weizheng W. Wang , Guangcai Zhou , Tung-Sheng Lin , Joseph Santoru
发明人： Ernest C. Chen , Weizheng W. Wang , Guangcai Zhou , Tung-Sheng Lin , Joseph Santoru
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。

26. 发明申请

US20090068953A1 METHODS AND APPARATUSES FOR MINIMIZING CO-CHANNEL INTERFERENCE 有权
标题翻译：用于最小化共通道干扰的方法和装置
公开(公告)号：US20090068953A1
公开(公告)日：2009-03-12
申请号：US12262078
申请日：2008-10-30
申请人： Lin-Nan Lee , Feng-Wen Sun , Adam Von Ancken , Joseph Santoru , Ernest C. Chen , Shamik Maitra , Dennis Lai , Guangcai Zhou , Tung-Sheng Lin
发明人： Lin-Nan Lee , Feng-Wen Sun , Adam Von Ancken , Joseph Santoru , Ernest C. Chen , Shamik Maitra , Dennis Lai , Guangcai Zhou , Tung-Sheng Lin
IPC分类号： H04B15/00
CPC分类号： H04N5/211 , H04B7/18513 , H04B7/1858 , H04N7/16 , H04N7/163 , H04N7/1675 , H04N7/17318 , H04N21/2347 , H04N21/4405 , H04N21/6143
摘要： Methods and apparatuses for minimizing co-channel interference in communications systems are disclosed. A method in accordance with the present invention comprises scrambling a first frame using a first scrambling code, attaching a first header to the first frame to create the first signal, scrambling a second frame using a second scrambling code, attaching a second header to the second frame to create the second signal, and transmitting the first signal and the second signal over different channels of the communication system.
摘要翻译：公开了用于最小化通信系统中的同信道干扰的方法和装置。根据本发明的方法包括使用第一扰码对第一帧进行加扰，将第一报头附加到第一帧以产生第一信号，使用第二扰码对第二帧进行加扰，将第二报头附加到第二帧以产生第二信号，以及通过通信系统的不同信道发送第一信号和第二信号。

27. 发明申请

US20070206638A1 BLIND IDENTIFICATION OF ADVANCED MODULATION AND CODING MODES 有权
标题翻译：高级调制和编码模式的盲点识别
公开(公告)号：US20070206638A1
公开(公告)日：2007-09-06
申请号：US11672461
申请日：2007-02-07
申请人： Joseph Santoru , Guangcai Zhou , Ernest Chen , Dennis Lai , Shamik Maitra
发明人： Joseph Santoru , Guangcai Zhou , Ernest Chen , Dennis Lai , Shamik Maitra
IPC分类号： H04J3/00
CPC分类号： H04L25/03866 , H04L1/0046 , H04L1/0057 , H04L1/0072 , H04L7/04 , H04L27/0012 , H04N5/4401 , H04N7/20 , H04N21/2383 , H04N21/2389 , H04N21/434 , H04N21/4382 , H04N21/4385 , H04N21/6143
摘要： Methods and apparatuses for acquiring and demodulating a data stream transmitted in a communication system. A method in accordance with the present invention comprises finding a boundary of a physical layer frame (PLFrame) in the data stream, finding a first 26 bits of a Unique Word (UW) associated with the data stream, finding a scrambling code utilizing the UW, and using a decoding procedure to determine a modulation type and code rate used for desired signals within the data stream.
摘要翻译：用于获取和解调在通信系统中发送的数据流的方法和装置。根据本发明的方法包括找到数据流中的物理层帧（PLFrame）的边界，找到与数据流相关联的唯一字（UW）的前26位，利用UW 并且使用解码过程来确定用于数据流内的期望信号的调制类型和码率。

28. 发明授权

US08023888B2 Blind identification of advanced modulation and coding modes 有权
标题翻译：盲目识别先进的调制和编码模式
公开(公告)号：US08023888B2
公开(公告)日：2011-09-20
申请号：US12719098
申请日：2010-03-08
申请人： Joseph Santoru , Guangcai Zhou , Ernest C. Chen , Dennis Lai , Shamik Maitra
发明人： Joseph Santoru , Guangcai Zhou , Ernest C. Chen , Dennis Lai , Shamik Maitra
IPC分类号： H04Q7/20
CPC分类号： H04L25/03866 , H04L1/0046 , H04L1/0057 , H04L1/0072 , H04L7/04 , H04L27/0012 , H04N5/4401 , H04N7/20 , H04N21/2383 , H04N21/2389 , H04N21/434 , H04N21/4382 , H04N21/4385 , H04N21/6143
摘要： Methods and apparatuses for acquiring and demodulating a data stream transmitted in a communication system. A method in accordance with the present invention comprises finding a boundary of a physical layer frame (PLFrame) in the data stream, finding a first 26 bits of a Unique Word (UW) associated with the data stream, finding a scrambling code utilizing the UW, and using a decoding procedure to determine a modulation type and code rate used for desired signals within the data stream.
摘要翻译：用于获取和解调在通信系统中发送的数据流的方法和装置。根据本发明的方法包括找到数据流中的物理层帧（PLFrame）的边界，找到与数据流相关联的唯一字（UW）的前26位，利用UW 并且使用解码过程来确定用于数据流内的期望信号的调制类型和码率。

29. 发明申请

US20100157881A1 BLIND IDENTIFICATION OF ADVANCED MODULATION AND CODING MODES 有权
标题翻译：高级调制和编码模式的盲点识别
公开(公告)号：US20100157881A1
公开(公告)日：2010-06-24
申请号：US12719098
申请日：2010-03-08
申请人： Joseph Santoru , Guangcai Zhou , Ernest C. Chen , Dennis Lai , Shamik Maitra
发明人： Joseph Santoru , Guangcai Zhou , Ernest C. Chen , Dennis Lai , Shamik Maitra
IPC分类号： H04B7/185 , H04N7/20
CPC分类号： H04L25/03866 , H04L1/0046 , H04L1/0057 , H04L1/0072 , H04L7/04 , H04L27/0012 , H04N5/4401 , H04N7/20 , H04N21/2383 , H04N21/2389 , H04N21/434 , H04N21/4382 , H04N21/4385 , H04N21/6143
摘要： Methods and apparatuses for acquiring and demodulating a data stream transmitted in a communication system. A method in accordance with the present invention comprises finding a boundary of a physical layer frame (PLFrame) in the data stream, finding a first 26 bits of a Unique Word (UW) associated with the data stream, finding a scrambling code utilizing the UW, and using a decoding procedure to determine a modulation type and code rate used for desired signals within the data stream.
摘要翻译：用于获取和解调在通信系统中发送的数据流的方法和装置。根据本发明的方法包括找到数据流中的物理层帧（PLFrame）的边界，找到与数据流相关联的唯一字（UW）的前26位，利用UW 并且使用解码过程来确定用于数据流内的期望信号的调制类型和码率。

30. 发明申请

US20080181291A1 METHOD AND APPARATUS FOR IDENTIFYING CO-CHANNEL INTERFERENCE 有权
标题翻译：识别共通道干扰的方法和装置
公开(公告)号：US20080181291A1
公开(公告)日：2008-07-31
申请号：US12098235
申请日：2008-04-04
申请人： Guangcai Zhou , Ernest C. Chen , Joseph Santoru , Judith M. Wang
发明人： Guangcai Zhou , Ernest C. Chen , Joseph Santoru , Judith M. Wang
IPC分类号： H04B3/46
CPC分类号： H04L27/0014 , H04B7/1858 , H04L1/20 , H04L1/208 , H04L25/03866 , H04L2001/0093 , H04L2027/0034 , H04L2027/0067 , H04L2027/0087 , H04N5/21 , H04N5/4401 , H04N7/163 , H04N7/1675 , H04N17/004 , H04N21/2347 , H04N21/6143
摘要： Methods and apparatuses identifying a co-channel interference signal in communications systems are disclosed. An exemplary method comprises generating an interference signal by subtracting a reconstructed desired signal from an at least partially demodulated composite signal, and generating synchronization statistics of interference signal using different scrambling codes. The interference signal is identified as the signal associated with the scrambling code that was used to generate an interference signal having a desired synchronization statistic.
摘要翻译：公开了通信系统中识别同信道干扰信号的方法和装置。一种示例性方法包括通过从至少部分解调的复合信号中减去重建的期望信号来产生干扰信号，以及使用不同的扰码产生干扰信号的同步统计。干扰信号被识别为与用于产生具有所需同步统计量的干扰信号的扰码相关联的信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式