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1. 发明申请

US20070116144A1 Optimization technique for layered modulation 有权
公开(公告)号：US20070116144A1
公开(公告)日：2007-05-24
申请号：US11655001
申请日：2007-01-18
申请人： Weizheng Wang , Guangcai Zhou , Tung-Sheng Lin , Ernest Chen , Joseph Santoru , William Lindsey
发明人： Weizheng Wang , Guangcai Zhou , Tung-Sheng Lin , Ernest Chen , Joseph Santoru , William Lindsey
IPC分类号： H04L27/00
CPC分类号： H04L1/20 , H04L1/208 , H04L27/183 , H04W52/42
摘要： A method and apparatus for optimizing a system for transmitting a layered modulated signal is disclosed. The method comprises the steps of defining the system in terms of a set of system parameters, including an optimal power separation S between a power of a first modulation layer and a power of a second modulation layer and a required system carrier-to-noise ratio (CNRS), determining an optimal power separation S to minimize the error rate of a lower layer modulated signal BERL, and selecting the remaining system parameters in the set of system parameters using the determined optimal power separation S.

2. 发明申请

US20060215785A1 Simplified scrambling scheme for satellite broadcasting systems 有权
标题翻译：卫星广播系统的简化扰频方案
公开(公告)号：US20060215785A1
公开(公告)日：2006-09-28
申请号：US10568384
申请日：2004-08-27
申请人： Ernest Chen , Dennis Lai , Tung-Sheng Lin , William Lindsey , Shamik Maitra , Joseph Santoru , Guangcai Zhou
发明人： Ernest Chen , Dennis Lai , Tung-Sheng Lin , William Lindsey , Shamik Maitra , Joseph Santoru , Guangcai Zhou
IPC分类号： H04L27/12
CPC分类号： H04L25/03866 , H04B7/18523 , H04L27/36 , H04N21/23895 , H04N21/4382 , H04N21/43853 , H04N21/6143 , H04N21/6193
摘要： A simplified scrambling scheme that unifies all signals of a satellite broadcasting system, including frame header (404), frame body (402) and pilot symbols (408) with a common reference phase. This results in the simplification and increased flexibility of the receiver front-end design without affecting the overall system performance. In many current communications systems with frame headers and pilot symbols, the phases of frame headers and pilot syrnbols are not designed to be aligned with any constellation points of the modulated data from the frame body. This scrambling scheme takes into account possible impact due to irregular phase changes between frame headers/pilot symbols and modulated data.
摘要翻译：一种简化的加扰方案，其将具有公共参考相位的卫星广播系统的所有信号（包括帧头部（404）），帧体（402）和导频符号（408）统一起来。这导致了接收机前端设计的简化和增加的灵活性，而不会影响整个系统的性能。在具有帧头和导频符号的许多当前通信系统中，帧头和导频符号的相位不被设计为与来自帧体的调制数据的任何星座点对准。该加扰方案考虑到由帧头/导频符号和调制数据之间的不规则相位变化引起的可能的影响。

3. 发明授权

US07469019B2 Optimization technique for layered modulation 有权
标题翻译：分层调制优化技术
公开(公告)号：US07469019B2
公开(公告)日：2008-12-23
申请号：US11655001
申请日：2007-01-18
申请人： Weizheng Wang , Guangcai Zhou , Tung-Sheng Lin , Ernest C. Chen , Joseph Santoru , William C. Lindsey
发明人： Weizheng Wang , Guangcai Zhou , Tung-Sheng Lin , Ernest C. Chen , Joseph Santoru , William C. Lindsey
IPC分类号： H04L27/04
CPC分类号： H04L1/20 , H04L1/208 , H04L27/183 , H04W52/42
摘要： A method and apparatus for optimizing a system for transmitting a layered modulated signal is disclosed. The method comprises the steps of defining the system in terms of a set of system parameters, including an optimal power separation S between a power of a first modulation layer and a power of a second modulation layer and a required system carrier-to-noise ratio (CNRS), determining an optimal power separation S to minimize the error rate of a lower layer modulated signal BERL, and selecting the remaining system parameters in the set of system parameters using the determined optimal power separation S.
摘要翻译：公开了一种用于优化用于发送分层调制信号的系统的方法和装置。该方法包括以下步骤：根据一组系统参数定义系统，包括第一调制层的功率和第二调制层的功率之间的最佳功率分离S和所需的系统载波比（CNRS），确定最佳功率分离S以最小化较低层调制信号BERL的误码率，以及使用确定的最佳功率分离S选择该组系统参数中的剩余系统参数。

4. 发明授权

US07184489B2 Optimization technique for layered modulation 有权
标题翻译：分层调制优化技术
公开(公告)号：US07184489B2
公开(公告)日：2007-02-27
申请号：US10693140
申请日：2003-10-24
申请人： Weizheng Wang , Guangcai Zhou , Tung-Sheng Lin , Ernest C. Chen , Joseph Santoru , William C. Lindsey
发明人： Weizheng Wang , Guangcai Zhou , Tung-Sheng Lin , Ernest C. Chen , Joseph Santoru , William C. Lindsey
IPC分类号： H04L27/04
CPC分类号： H04L1/20 , H04L1/208 , H04L27/183 , H04W52/42
摘要： A method and apparatus for optimizing a system for transmitting a layered modulated signal is disclosed. The method comprises the steps of defining the system in terms of a set of system parameters, including an optimal power separation S between a power of a first modulation layer and a power of a second modulation layer and a required system carrier-to-noise ratio (CNRS), determining an optimal power separation S to minimize the error rate of a lower layer modulated signal BERL, and selecting the remaining system parameters in the set of system parameters using the determined optimal power separation S.
摘要翻译：公开了一种用于优化用于发送分层调制信号的系统的方法和装置。该方法包括以下步骤：根据一组系统参数定义系统，包括第一调制层的功率和第二调制层的功率之间的最佳功率分离S和所需的系统载波比（CNR S S），确定最佳功率分离S以最小化下层调制信号BERLL的错误率，并且选择系统中的剩余系统参数参数使用确定的最佳功率分离S.

5. 发明申请

US20070074242A1 Methods and apparatuses for determining scrambling codes for signal transmission 有权
标题翻译：用于确定信号传输的扰码的方法和装置
公开(公告)号：US20070074242A1
公开(公告)日：2007-03-29
申请号：US11510244
申请日：2006-08-25
申请人： Judith Wang , Guangcai Zhou , Joseph Santoru , Ernest Chen , Shamik Maitra , Dennis Lai , Tung-Sheng Lin
发明人： Judith Wang , Guangcai Zhou , Joseph Santoru , Ernest Chen , Shamik Maitra , Dennis Lai , Tung-Sheng Lin
IPC分类号： H04N7/167 , H04N7/16
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。

6. 发明申请

US20050226418A1 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：US20050226418A1
公开(公告)日：2005-10-13
申请号：US11102958
申请日：2005-04-11
申请人： Lin-Nan Lee , Feng-Wen Sun , Adam Ancken , Joseph Santoru , Ernest Chen , Shamik Maitra , Dennis Lai , Guangcai Zhou , Tung-Sheng Lin
发明人： Lin-Nan Lee , Feng-Wen Sun , Adam Ancken , Joseph Santoru , Ernest Chen , Shamik Maitra , Dennis Lai , Guangcai Zhou , Tung-Sheng Lin
IPC分类号： H04B7/185 , H04L9/00 , H04N5/21 , H04N7/16 , H04N7/167 , H04N7/173
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。

7. 发明申请

US20050229230A1 Shifted channel characteristics for mitigating co-channel interference 有权
标题翻译：改变通道特性，以减轻同频干扰
公开(公告)号：US20050229230A1
公开(公告)日：2005-10-13
申请号：US11102983
申请日：2005-04-11
申请人： Joseph Santoru , Ernest Chen , Shamik Maitra , Dennis Lai , Guangcai Zhou , Tung-Sheng Lin
发明人： Joseph Santoru , Ernest Chen , Shamik Maitra , Dennis Lai , Guangcai Zhou , Tung-Sheng Lin
IPC分类号： H04B7/185 , H04L9/00 , H04N5/21 , H04N7/16 , H04N7/167 , H04N7/173 , H04N5/445
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 shifting a characteristic of the first signal with respect to a like characteristic of the second signal to mitigate co-channel interference, 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相对于第二信号的相似特性移动第一信号的特性以减轻同信道干扰，以及通过通信系统的不同信道发送第一信号和第二信号。

8. 发明申请

US20050226414A1 Methods and apparatuses for minimizing co-channel interference 有权
标题翻译：用于最小化同频道干扰的方法和装置
公开(公告)号：US20050226414A1
公开(公告)日：2005-10-13
申请号：US11103307
申请日：2005-04-11
申请人： Lin-Nan Lee , Feng-Wen Sun , Adam Ancken , Joseph Santoru , Ernest Chen , Shamik Maitra , Dennis Lai , Guangcai Zhou , Tung-Sheng Lin
发明人： Lin-Nan Lee , Feng-Wen Sun , Adam Ancken , Joseph Santoru , Ernest Chen , Shamik Maitra , Dennis Lai , Guangcai Zhou , Tung-Sheng Lin
IPC分类号： H04B7/185 , H04L9/00 , H04N5/21 , H04N7/16 , H04N7/167 , H04N7/173
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。

9. 发明授权

US07961880B2 Methods and apparatuses for determining scrambling codes for signal transmission 有权
标题翻译：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
IPC分类号： H04N7/167 , H04B1/00 , H03D1/04
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。

10. 发明申请

US20090224824A1 OPTIMIZED UPLINK EFFICIENCIES FOR TRANSMISSION OF SATELLITE DATA 有权
标题翻译：优化传输卫星数据的上网效率
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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