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81. 发明授权

US06178198B1 Apparatus for, and method of, processing signals transmitted over a local area network 失效
标题翻译：用于处理通过局域网传输的信号的装置和方法
公开(公告)号：US06178198B1
公开(公告)日：2001-01-23
申请号：US08970557
申请日：1997-11-14
申请人： Henry Samueli , Fang Lu , Avanindra Madisetti
发明人： Henry Samueli , Fang Lu , Avanindra Madisetti
IPC分类号： H03K311
CPC分类号： H04L7/0054 , H04L7/0004 , H04L7/0334 , H04L25/03057 , H04L25/03885 , H04L25/062 , H04L2025/03503
摘要： Digital signals provided by a repeater connected to a plurality of clients by unshielded twisted wire pairs, are converted to analog signals which become degraded during transmission through the wires. Clients convert the degraded analog signals to digital signals. Digital signal phases are coarsely adjusted to have assumed zero crossing times coincide in-time with a clock signal zero crossing. Signal polarity, and the polarity of any change, is determined at the assumed zero crossing times of the digital signals. Pre-cursor and post-cursor responses, resulting from signal degradation, are respectively inhibited by a feed forward and a decision feedback equalizer. The time duration of post-cursor response is further inhibited by a high pass filter and a tail canceller. Phase adjustments are made, after response inhibition, by determining the polarity, and the polarity of any change, at the assumed zero crossing times. Before phase adjustments are made, a phase offset is provided in order to compensate for phase degradations introduced by the unshielded twisted wire pairs.
摘要翻译：由通过非屏蔽双绞线连接到多个客户端的中继器提供的数字信号被转换为在通过电线传输期间降级的模拟信号。客户端将降级的模拟信号转换为数字信号。数字信号相位粗略地调整为假定零交叉时间与时钟信号过零时间一致。信号极性和任何变化的极性在假定的数字信号的零交叉时间确定。分别由前馈和判决反馈均衡器阻止由信号劣化引起的前标和后视标响应。后置光标响应的持续时间被高通滤波器和尾部消除器进一步抑制。通过在假设的零交叉时间确定极性和任何变化的极性，在响应抑制之后进行相位调整。在进行相位调整之前，提供相位偏移以补偿由未屏蔽的双绞线引入的相位劣化。

82. 发明授权

US5754591A System for, and method of, processing quadrature amplitude modulated signals 失效
公开(公告)号：US5754591A
公开(公告)日：1998-05-19
申请号：US285504
申请日：1994-08-03
申请人： Henry Samueli , Charles P. Reames
发明人： Henry Samueli , Charles P. Reames
IPC分类号： H04L27/38 , H03H7/30 , H03H7/40
CPC分类号： H04N5/211 , H03D3/008 , H04B1/28 , H04L25/03057 , H04L27/3818 , H04L27/3872 , H04N5/4401 , H04N5/455
摘要： Analog signals encoded with quadrature amplitude modulation (QAM) pass through a coaxial cable at a particular baud rate. These signals have a carrier frequency individual to the TV station being received. They are mixed with signals from a variable frequency oscillator to produce signals at a particular intermediate frequency (IF). An analog-digital converter (ADC) converts the IF signals to corresponding digital signals which are demodulated to produce two digital signals having a quadrature phase relationship. After being filtered and derotated, the digital signals pass to a symmetrical equalizer including a feed forward equalizer (FFE) and a decision feedback equalizer (DFE) connected to the FFE in a feedback relationship. The DFE may include a slicer providing amplitude approximations of increasing sensitivity at progressive times. Additional slicers in the equalizer combine the FFE and DFE outputs to provide the output data without any of the coaxial cable noise or distortions. The equalizer outputs and initially the derotation outputs, and the slicer outputs, servo (1) the oscillator frequency to obtain the IF frequency, (2) the ADC sampling clock to obtain the digital conversion at a rate related to the particular baud rate and (3) the derotator. The servos may have (1) first constants initially after a change in the station selection and (2) second time constants thereafter. The ADC gain is also servoed (1) initially in every ADC conversion and (2) subsequently in every nth ADC conversion where n=integer>1. The above recover the QAM data without any of the coaxial cable noise or distortions.

83. 发明授权

US08229035B2 Apparatus for, and method of, processing signals transmitted over a local area network 有权
标题翻译：用于处理通过局域网传输的信号的装置和方法
公开(公告)号：US08229035B2
公开(公告)日：2012-07-24
申请号：US12017314
申请日：2008-01-21
申请人： Henry Samueli , Fang Lu , Avanindra Madisetti
发明人： Henry Samueli , Fang Lu , Avanindra Madisetti
IPC分类号： H04L27/06
CPC分类号： H04L7/0054 , H04L7/0004 , H04L7/0334 , H04L25/03057 , H04L25/03885 , H04L25/062 , H04L2025/03503
摘要： Systems for recovering communicated information in a communication system are disclosed and may include at least one digitizer for digitizing an analog received signal comprising the communicated information, thereby creating a digital received signal. The system may include at least one filter for bandwidth-limiting at least a portion of the digital received signal. At least one feed forward equalizer may be used for equalizing at least a portion of the bandwidth-limited signal to create an equalized signal. At least one converter for creating a data signal according to at least the equalized signal. At least one soft decision circuit for creating a soft decision signal according to the data signal. The soft decision circuit may cancel at least a portion of the equalized signal.
摘要翻译：公开了用于恢复通信系统中的通信信息的系统，并且可以包括用于数字化包括所传送的信息的模拟接收信号的至少一个数字化仪，从而产生数字接收信号。该系统可以包括用于对数字接收信号的至少一部分进行带宽限制的至少一个滤波器。可以使用至少一个前馈均衡器来均衡带宽限制信号的至少一部分以产生均衡的信号。至少一个转换器，用于根据至少所述均衡信号产生数据信号。用于根据数据信号产生软判决信号的至少一个软判决电路。软判决电路可以消除均衡信号的至少一部分。

84. 发明授权

US08135059B2 System for, and method of, processing quadrature amplitude modulated signals 失效
标题翻译：处理正交幅度调制信号的系统和方法
公开(公告)号：US08135059B2
公开(公告)日：2012-03-13
申请号：US12410144
申请日：2009-03-24
申请人： Henry Samueli , Charles P. Reames
发明人： Henry Samueli , Charles P. Reames
IPC分类号： H03H7/30
CPC分类号： H04N5/211 , H03D3/008 , H04B1/28 , H04L25/03057 , H04L27/3818 , H04L27/3872 , H04N5/4401 , H04N5/455
摘要： Analog signals encoded with quadrature amplitude modulation (QAM) pass through a coaxial cable at a particular baud rate. These signals have a carrier frequency individual to the TV station being received. They are mixed with signals from a variable frequency oscillator to produce signals at a particular intermediate frequency (IF). An analog-digital converter (ADC) converts the IF signals to corresponding digital signals which are demodulated to produce two digital signals having a quadrature phase relationship. After being filtered and derotated, the digital signals pass to a symmetrical equalizer including a feed forward equalizer (FFE) and a decision feedback equalizer (DFE) connected to the FFE in a feedback relationship. The DFE may include a slicer providing amplitude approximations of increasing sensitivity at progressive times. Additional slicers in the equalizer combine the FFE and DFE outputs to provide the output data without any of the coaxial cable noise or distortions. The equalizer outputs and initially the derotation outputs, and the slicer outputs, servo (1) the oscillator frequency to obtain the IF frequency, (2) the ADC sampling clock to obtain the digital conversion at a rate related to the particular baud rate and (3) the derotator. The servos may have (1) first constants initially after a change in the station selection and (2) second time constants thereafter. The ADC gain is also servoed (1) initially in every ADC conversion and (2) subsequently in every nth ADC conversion where n=integer>1. The above recover the QAM data without any of the coaxial cable noise or distortions.
摘要翻译：用正交幅度调制（QAM）编码的模拟信号以特定的波特率通过同轴电缆。这些信号具有被接收到的电视台个体的载波频率。它们与来自可变频率振荡器的信号混合，以产生特定中频（IF）的信号。模拟数字转换器（ADC）将IF信号转换成相应的数字信号，这些数字信号被解调以产生具有正交相位关系的两个数字信号。在被滤波和解旋后，数字信号传递到对称均衡器，包括在反馈关系中连接到FFE的前馈均衡器（FFE）和判决反馈均衡器（DFE）。 DFE可以包括在渐进时间提供灵敏度增加的幅度近似的切片器。均衡器中的附加切片器组合了FFE和DFE输出，以提供输出数据，而不会产生任何同轴电缆噪声或失真。均衡器输出和最初的解转输出和限幅器输出，伺服（1）振荡器频率以获得IF频率，（2）ADC采样时钟以与特定波特率相关的速率获得数字转换，（ 3）解旋器。伺服器可以在（1）第一个常数在车站选择的变化之后和（2）之后的第二个时间常数。 ADC增益最初也在每次ADC转换时被伺服（1），（2）随后在n = 1的整数的第n个ADC转换中。上述恢复了QAM数据，没有任何同轴电缆噪声或失真。

85. 发明申请

US20110179446A1 SYSTEM AND METHOD FOR COMMUNICATING PROGRAMMING AND ADVERTISING CONTENT THROUGH DIVERSE COMMUNICATION NETWORKS 审中-公开
标题翻译：通过多媒体通信网络传播编程和广告内容的系统和方法
公开(公告)号：US20110179446A1
公开(公告)日：2011-07-21
申请号：US12949049
申请日：2010-11-18
申请人： Jeyhan Karaoguz , Nambirajan Seshadri , Henry Samueli
发明人： Jeyhan Karaoguz , Nambirajan Seshadri , Henry Samueli
IPC分类号： H04N7/10
CPC分类号： H04N21/4622 , H04N21/44016 , H04N21/812
摘要： A system and method for communicating programming and advertising content through diverse communication networks, substantially as shown in and/or described in connection with at least one of the figures, as set forth more completely in the claims.
摘要翻译：用于通过各种通信网络传达节目和广告内容的系统和方法，如在权利要求中更全面地阐述的，基本上如至少一个附图所示和/或描述的。

86. 发明授权

US07321619B2 Apparatus for, and method of, processing signals transmitted over a local area network 有权
标题翻译：用于处理通过局域网传输的信号的装置和方法
公开(公告)号：US07321619B2
公开(公告)日：2008-01-22
申请号：US10260714
申请日：2002-09-30
申请人： Henry Samueli , Fang Lu , Avanindra Madisetti
发明人： Henry Samueli , Fang Lu , Avanindra Madisetti
IPC分类号： H03H7/30
CPC分类号： H04L7/0054 , H04L7/0004 , H04L7/0334 , H04L25/03057 , H04L25/03885 , H04L25/062 , H04L2025/03503
摘要： An aspect of the invention provides for recovering communicated information in a communication system. Recovering communicated information in a communication system may include generating a first digital signal from a received analog signal bearing communicated information, the first digital signal having a pre-cursor response and a post-cursor response. A second digital signal may be generated that limits a duration of at least a portion of the post-cursor response and a third digital signal may be generated that inhibits at least a portion of the pre-cursor response. A fourth digital signal that inhibits at least a portion of the post-cursor response and a fifth digital signal that limits a duration of at least a portion of the fourth signal may be generated in order to recover the communicated information. A sixth digital signal based on at least the third digital signal and the fifth digital signal may be generated.
摘要翻译：本发明的一个方面提供了在通信系统中恢复通信的信息。在通信系统中恢复所传送的信息可以包括从接收的具有传送信息的模拟信号产生第一数字信号，第一数字信号具有前置响应和后置光标响应。可以生成限制后视标响应的至少一部分的持续时间的第二数字信号，并且可以生成抑制至少一部分前置标签响应的第三数字信号。可以产生抑制后视标响应的至少一部分的第四数字信号和限制第四信号的至少一部分的持续时间的第五数字信号，以便恢复所传送的信息。可以生成至少基于第三数字信号和第五数字信号的第六数字信号。

87. 发明申请

US20070109995A1 Compensating for noise in a wireless communication system 有权
标题翻译：补偿无线通信系统中的噪声
公开(公告)号：US20070109995A1
公开(公告)日：2007-05-17
申请号：US11584676
申请日：2006-10-23
申请人： Thomas Quigley , Jonathan Min , Lisa Denney , Henry Samueli , Sean Nazareth , Feng Chen , Fang Lu , Christopher Jones
发明人： Thomas Quigley , Jonathan Min , Lisa Denney , Henry Samueli , Sean Nazareth , Feng Chen , Fang Lu , Christopher Jones
IPC分类号： H04Q7/00 , H04L12/43
CPC分类号： H04L41/142 , H04B1/1027 , H04B1/1036 , H04J3/0655 , H04J3/0682 , H04L1/0003 , H04L1/0009 , H04L1/0045 , H04L1/0061 , H04L1/203 , H04L5/003 , H04L5/1446 , H04L12/2801 , H04L25/03019 , H04L25/03057 , H04L25/03343 , H04L27/0014 , H04L27/2601 , H04L27/34 , H04L2025/03808 , H04W72/085 , Y02D50/10
摘要： A number of features for enhancing the performance of a communication system, in which data is transmitted between a base station and a plurality of subscriber stations located different distances from the base station, are presented. The power transmission level, slot timing, and equalization of the subscriber stations are set by a ranging process. Data is transmitted by the subscriber stations in fragmented form. Various measures are taken to make transmission from the subscriber stations robust. The uplink data transmission is controlled to permit multiple access from the subscriber stations.
摘要翻译：提供了用于增强在基站与位于距离基站不同距离的多个用户站之间传送数据的通信系统的性能的许多特征。用户站的功率传输级别，时隙定时和均衡由测距过程来设置。数据由用户站以分段形式传输。采取各种措施使得用户站的传输稳健。控制上行链路数据传输以允许来自订户站的多次接入。

88. 发明申请

US20070036176A1 Methods to compensate for noise in a wireless communication system 有权
标题翻译：补偿无线通信系统噪声的方法
公开(公告)号：US20070036176A1
公开(公告)日：2007-02-15
申请号：US11584646
申请日：2006-10-23
申请人： Thomas Quigley , Jonathan Min , Lisa Denney , Henry Samueli , Sean Nazareth , Feng Chen , Fang Lu , Christopher Jones
发明人： Thomas Quigley , Jonathan Min , Lisa Denney , Henry Samueli , Sean Nazareth , Feng Chen , Fang Lu , Christopher Jones
IPC分类号： H04J3/22
CPC分类号： H04L41/142 , H04B1/1027 , H04B1/1036 , H04J3/0655 , H04J3/0682 , H04L1/0003 , H04L1/0009 , H04L1/0045 , H04L1/0061 , H04L1/203 , H04L5/003 , H04L5/1446 , H04L12/2801 , H04L25/03019 , H04L25/03057 , H04L25/03343 , H04L27/0014 , H04L27/2601 , H04L27/34 , H04L2025/03808 , H04W72/085 , Y02D50/10
摘要： A number of features for enhancing the performance of a communication system, in which data is transmitted between a base station and a plurality of subscriber stations located different distances from the base station, are presented. The power transmission level, slot timing, and equalization of the subscriber stations are set by a ranging process. Data is transmitted by the subscriber stations in fragmented form. Various measures are taken to make transmission from the subscriber stations robust. The uplink data transmission is controlled to permit multiple access from the subscriber stations.
摘要翻译：提供了用于增强在基站与位于距离基站不同距离的多个用户站之间传送数据的通信系统的性能的许多特征。用户站的功率传输级别，时隙定时和均衡由测距过程来设置。数据由用户站以分段形式传输。采取各种措施使得用户站的传输稳健。控制上行链路数据传输以允许来自订户站的多次接入。

89. 发明授权

US06763032B1 Cable modem system with sample and packet synchronization 有权
标题翻译：有线调制解调器系统，带有采样和分组同步
公开(公告)号：US06763032B1
公开(公告)日：2004-07-13
申请号：US09501892
申请日：2000-02-10
申请人： Theodore F. Rabenko , James C. H. Thi , John D. Horton, Jr. , Thomas J. Quigley , Lisa V. Denney , Jonathan S. Min , Christopher R. Jones , Henry Samueli , Fang Lu , Feng Chen , Sean F. Nazareth
发明人： Theodore F. Rabenko , James C. H. Thi , John D. Horton, Jr. , Thomas J. Quigley , Lisa V. Denney , Jonathan S. Min , Christopher R. Jones , Henry Samueli , Fang Lu , Feng Chen , Sean F. Nazareth
IPC分类号： H04B7212
CPC分类号： H04L12/2801 , H04J3/0655 , H04L1/0003
摘要： A method for communicating information is disclosed wherein a time slot is allocated in a time division multiple access system for a transmission from a subscriber to a headend. Synchronization of a clock of the subscriber with respect to a clock of the headend is enhanced using a message transmitted from the headend to the subscriber which is indicative of an error in a subscriber transmission time with respect to the time slot. A feedback loop process is used to determine at least one of fractional symbol timing correction and carrier phase correction of a transmission from the subscriber to the headend. Filter coefficients are generated at the headend from a ranging signal transmitted from the subscriber to the headend and transmitting the filter coefficients from the headend to the subscriber, the filter coefficients being used by the subscriber to compensate for noise in a transmission from the subscriber to the headend.
摘要翻译：公开了一种用于传送信息的方法，其中在用于从订户到头端的传输的时分多址系统中分配时隙。使用从前端发送到用户的消息来增强用户相对于前端的时钟的时钟的同步，该消息指示相对于时隙的用户传输时间中的错误。反馈回路过程用于确定从订户到头端的传输的分数符号定时校正和载波相位校正中的至少一个。滤波器系数在头端从从用户发送到头端的测距信号产生，并且将滤波器系数从头端发送到用户，滤波器系数由用户使用以补偿从用户到用户的传输中的噪声头端

90. 发明授权

US06714608B1 Multi-mode variable rate digital satellite receiver 失效
标题翻译：多模变频数字卫星接收机
公开(公告)号：US06714608B1
公开(公告)日：2004-03-30
申请号：US09013964
申请日：1998-01-27
申请人： Henry Samueli , Alan Y. Kwentus , Thomas D. Kwon
发明人： Henry Samueli , Alan Y. Kwentus , Thomas D. Kwon
IPC分类号： H04L2706
CPC分类号： H04H40/90 , H04L7/033 , H04L27/0014 , H04L2027/0057
摘要： Carrier signals are modulated by information (e.g., television) signals in a particular frequency range. The information signals are oversampled at a first frequency greater than any of the frequencies in the particular frequency range to provide digital signals at a second frequency. The digital signals are introduced to a carrier recovery loop which provides a feedback to regulate the frequency of the digital signals at the second frequency. The digital signals are introduced to a symbol recovery loop which provides a feedback to maintain the time for the production of the digital signals in the middle of the data signals. The gain of the digital signals is also regulated in a feedback loop. The digital signals are processed to recover the data in the data signals. By providing digital feedbacks, the information recovered from the digital signals can be quite precise. In one embodiment, the carrier signals are demodulated to produce baseband inphase and quadrature signals. The inphase and quadrature signals are then oversampled and regulated in the feedback loops as described above. In a second embodiment, the carrier signals downconverted to produce intermediate frequency signals which are oversampled to produce the digital signals at the second frequency without producing the inphase and quadrature signals. The oversampled signals are then regulated in the feedback loops as described above. In a third embodiment, the carrier signals are oversampled without being downconverted and without producing the inphase and quadrature signals.
摘要翻译：载波信号由特定频率范围内的信息（例如电视）信号调制。以大于特定频率范围内的任何频率的第一频率对信息信号进行过采样，以提供第二频率的数字信号。数字信号被引入载波恢复回路，其提供反馈以调节第二频率处的数字信号的频率。数字信号被引入到符号恢复循环，其提供反馈以保持在数据信号中间产生数字信号的时间。数字信号的增益也在反馈环路中调节。处理数字信号以恢复数据信号中的数据。通过提供数字反馈，从数字信号中恢复的信息可以相当精确。在一个实施例中，载波信号被解调以产生基带同相和正交信号。然后如上所述，在反馈回路中对同相和正交信号进行过采样和调节。在第二实施例中，载波信号被下变频以产生过采样的中频信号，以在第二频率产生数字信号，而不产生同相和正交信号。如上所述，过采样信号在反馈回路中被调节。在第三实施例中，载波信号被过采样而不进行下变频，而不产生同相和正交信号。

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