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11. 发明申请

US20070053468A1 Quadrature receiver sampling architecture 有权
标题翻译：正交接收机采样架构
公开(公告)号：US20070053468A1
公开(公告)日：2007-03-08
申请号：US11593273
申请日：2006-11-06
申请人： Tommy Yu , Steven Jaffe , Stephen Krafft
发明人： Tommy Yu , Steven Jaffe , Stephen Krafft
IPC分类号： H04L27/22
CPC分类号： H04L27/00
摘要： Quadrature receiver sampling architecture. A signal ADC performs analog to digital conversion for both I and Q streams. An analog MUX selects the appropriate I and the Q baseband analog input streams for input to the ADC at the appropriate time. A digital filter may also be employed to compensate for any introduced delay between the samples of the I and Q channel when seeking to recover the symbols that have been transmitted to a communication receiver that employs this quadrature receiver architecture and/or signal processing. In one embodiment, if an ADC is clocked at a rate of substantially twice the sample rate of the I and Q channels, there will be a one-half sample clock delay between the digital I and digital Q data at the output of the ADC. This delay is then removed before the demodulator processes the input signals to recover the transmitted symbols.
摘要翻译：正交接收机采样架构。信号ADC为I和Q流执行模数转换。模拟MUX在适当的时间选择适当的I和Q基带模拟输入流输入ADC。还可以采用数字滤波器来补偿在I和Q信道的样本之间的任何引入的延迟，当寻求恢复已被发送到使用该正交接收器架构和/或信号处理的通信接收机的符号时。在一个实施例中，如果ADC以基本上是I和Q通道的采样率的两倍的速率被计时，则在ADC的输出处的数字I和数字Q数据之间将存在二分之一采样时钟延迟。然后在解调器处理输入信号之前去除该延迟以恢复发送的符号。

12. 发明授权

US09344262B2 Systems and methods for selecting digital content channels using low noise block converters including digital channelizer switches 有权
标题翻译：使用包括数字信道切换器的低噪声块转换器来选择数字内容信道的系统和方法
公开(公告)号：US09344262B2
公开(公告)日：2016-05-17
申请号：US13355413
申请日：2012-01-20
申请人： Tommy Yu
发明人： Tommy Yu
IPC分类号： H04L27/06 , H04L5/06
CPC分类号： H04L5/06 , H04B1/001 , H04B1/16 , H04B7/18513 , H04L27/2634
摘要： Systems and methods in accordance with embodiments of the invention include converting satellite signals to an intermediate frequency signal for content decoding, and selecting modulated digital data within the satellite signals for content decoding using digital signal processing. One embodiment includes a system configured to select at least one content channel from an input signal including a plurality of content channels modulated onto a carrier, the system including: a digital channelizer switch including: a high speed analog to digital converter configured to digitize an intermediate frequency signal; a digital channelizer configured to digitally tune a content channel from the digitized intermediate frequency signal; and a high speed digital to analog converter configured to generate an analog output signal using the content channel digitally tuned from the digitized intermediate frequency signal by the digital channelizer.
摘要翻译：根据本发明的实施例的系统和方法包括将卫星信号转换为用于内容解码的中频信号，以及使用数字信号处理在卫星信号内选择调制数字数据进行内容解码。一个实施例包括被配置为从包括调制到载波上的多个内容信道的输入信号中选择至少一个内容信道的系统，所述系统包括：数字信道切换器开关，包括：高速模数转换器，被配置为数字化中间频率信号; 配置为从数字化的中频信号数字地调谐内容信道的数字信道器; 以及高速数模转换器，被配置为使用由数字通道器从数字化的中频信号数字调谐的内容通道产生模拟输出信号。

13. 发明授权

US08867674B2 Scalable satellite receiver system 有权
标题翻译：可扩展卫星接收机系统
公开(公告)号：US08867674B2
公开(公告)日：2014-10-21
申请号：US12500361
申请日：2009-07-09
申请人： Tommy Yu
发明人： Tommy Yu
IPC分类号： H04L27/06 , H04H40/90 , H04N7/20
CPC分类号： H04H40/90 , H04N7/20
摘要： A receiver for a multi-channel communication system can include a down-converter device, an analog-to-digital converter (ADC), and a plurality of digital channel selection devices. The down-converter device can be configured to down-convert a plurality of analog signals from the multi-channel communication system to a plurality of corresponding low intermediate frequency (IF) signals. The ADC can be configured to convert the plurality of corresponding low-IF signals to a plurality of digital signals. Further, each digital channel selection device from the plurality of digital channel selection devices can be configured to select a digital signal corresponding to a channel of interest from the plurality of digital signals for further processing.
摘要翻译：用于多通道通信系统的接收机可以包括下变频器装置，模数转换器（ADC）和多个数字信道选择装置。下变换器装置可以被配置为将来自多通道通信系统的多个模拟信号下变频到多个对应的低中频（IF）信号。 ADC可以被配置为将多个对应的低IF信号转换成多个数字信号。此外，来自多个数字信道选择装置的每个数字信道选择装置可以被配置为从多个数字信号中选择对应于感兴趣信道的数字信号用于进一步处理。

14. 发明授权

US08265217B2 Phase tracking in communications systems 有权
标题翻译：通信系统中的相位跟踪
公开(公告)号：US08265217B2
公开(公告)日：2012-09-11
申请号：US11586668
申请日：2006-10-26
申请人： Tommy Yu , Amy Gayle Hundhausen
发明人： Tommy Yu , Amy Gayle Hundhausen
IPC分类号： H04L7/00
CPC分类号： H04L7/0016 , H04L27/0014 , H04L2027/003 , H04L2027/0046 , H04L2027/0067
摘要： The present invention includes a method of determining a phase estimate for an input signal having pilot symbols. The method includes receiving a plurality of pilot symbols, and then multiplying two or more pilot symbol slots by corresponding correlator coefficients to correct a phase estimate of the input signal.
摘要翻译：本发明包括一种确定具有导频符号的输入信号的相位估计的方法。该方法包括：接收多个导频符号，然后将两个或多个导频符号时隙乘以相应的相关器系数，以校正输入信号的相位估计。

15. 发明授权

US07295607B2 Method and system for receiving pulse width keyed signals 失效
标题翻译：用于接收脉宽键控信号的方法和系统
公开(公告)号：US07295607B2
公开(公告)日：2007-11-13
申请号：US10856936
申请日：2004-06-01
申请人： Tommy Yu
发明人： Tommy Yu
IPC分类号： H03K7/08
CPC分类号： H04L25/4902
摘要： Provided is a method to process a pulse width coded signal. the method includes digitizing a received pulse width coded signal and transforming the digitized signal to at least one of power domain and absolute value domain. The converting produces a converted signal. The method also includes estimating a signal power of the converted signal in a wide band filter to produce data representative of a first signal having first type signal shape properties and estimating a signal power of the converted signal in a narrow band filter to produce data representative of a second signal having second type signal shape properties. Finally, the first and second type data are compared to produce information representative of pulse width characteristics of the received signal.
摘要翻译：提供了一种处理脉冲宽度编码信号的方法。该方法包括数字化接收到的脉冲宽度编码信号并将数字化信号转换成功率域和绝对值域中的至少一个。转换产生转换信号。该方法还包括估计宽带滤波器中的转换信号的信号功率，以产生表示具有第一类型信号形状属性的第一信号的数据，并且估计窄带滤波器中的转换信号的信号功率以产生表示具有第二类型信号形状特性的第二信号。最后，将第一和第二类型数据进行比较，以产生表示接收信号的脉冲宽度特性的信息。

16. 发明授权

US07139332B2 Quadrature receiver sampling architecture 有权
公开(公告)号：US07139332B2
公开(公告)日：2006-11-21
申请号：US10184766
申请日：2002-06-28
申请人： Tommy Yu , Steven Jaffe , Stephen Edward Krafft
发明人： Tommy Yu , Steven Jaffe , Stephen Edward Krafft
IPC分类号： H03K9/00 , H04L27/06 , H04L27/14 , H04L27/22
CPC分类号： H04L27/00
摘要： Quadrature receiver sampling architecture. A signal ADC performs analog to digital conversion for both I and Q streams. An analog MUX selects the appropriate I and the Q baseband analog input streams for input to the ADC at the appropriate time. A digital filter may also be employed to compensate for any introduced delay between the samples of the I and Q channel when seeking to recover the symbols that have been transmitted to a communication receiver that employs this quadrature receiver architecture and/or signal processing. In one embodiment, if an ADC is clocked at a rate of substantially twice the sample rate of the I and Q channels, there will be a one-half sample clock delay between the digital I and digital Q data at the output of the ADC. This delay is then removed before the demodulator processes the input signals to recover the transmitted symbols.

17. 发明授权

US08761328B2 Equalizer architecture for data communication 有权
标题翻译：用于数据通信的均衡器架构
公开(公告)号：US08761328B2
公开(公告)日：2014-06-24
申请号：US13357986
申请日：2012-01-25
申请人： Tommy Yu , Amy Gayle Hundhausen
发明人： Tommy Yu , Amy Gayle Hundhausen
IPC分类号： H04B1/10 , H03H7/30 , H03K5/159
CPC分类号： H04L25/03038 , H04L2025/03477 , H04L2025/03617 , H04L2027/0024 , H04L2027/0055
摘要： An update algorithm for equalizer coefficients in a communications system using phase correction symbols. Instead of using a traditional all symbols slicer update algorithm, the equalizer is updated during phase correction symbols for optimal performance in low signal-to-noise ratio conditions. In lower signal-to-noise ratio conditions, the equalizer uses a phase correction circuit to compensate for distortion caused by a communication channel when a demodulated data stream contains an unknown phase offsets resulting from a fast dynamic distortion. More specifically, the phase correction circuit uses a phase correction signal to correct for the unknown phase offsets in a demodulated data stream in lower signal-to-noise ratio conditions. The equalizer then corrects for distortion caused by the communication channel based upon the phase corrected demodulated data stream.
摘要翻译：一种使用相位校正符号的通信系统中均衡器系数的更新算法。代替使用传统的所有符号限幅器更新算法，均衡器在相位校正符号期间更新，以在低信噪比条件下实现最佳性能。在较低的信噪比条件下，当解调的数据流包含由快速动态失真导致的未知相位偏移时，均衡器使用相位校正电路来补偿由通信信道引起的失真。更具体地，相位校正电路使用相位校正信号来校正在较低信噪比条件下的解调数据流中的未知相位偏移。然后，均衡器基于相位校正的解调数据流校正由通信信道引起的失真。

18. 发明申请

US20120189084A1 SYSTEMS AND METHODS FOR SELECTING DIGITAL CONTENT CHANNELS USING LOW NOISE BLOCK CONVERTERS INCLUDING DIGITAL CHANNELIZER SWITCHES 有权
标题翻译：使用低噪声块转换器（包括数字通道开关）选择数字内容通道的系统和方法
公开(公告)号：US20120189084A1
公开(公告)日：2012-07-26
申请号：US13355413
申请日：2012-01-20
申请人： Tommy Yu
发明人： Tommy Yu
IPC分类号： H04L27/00
CPC分类号： H04L5/06 , H04B1/001 , H04B1/16 , H04B7/18513 , H04L27/2634
摘要： Systems and methods in accordance with embodiments of the invention include converting satellite signals to an intermediate frequency signal for content decoding, and selecting modulated digital data within the satellite signals for content decoding using digital signal processing. One embodiment includes a system configured to select at least one content channel from an input signal including a plurality of content channels modulated onto a carrier, the system including: a digital channelizer switch including: a high speed analog to digital converter configured to digitize an intermediate frequency signal; a digital channelizer configured to digitally tune a content channel from the digitized intermediate frequency signal; and a high speed digital to analog converter configured to generate an analog output signal using the content channel digitally tuned from the digitized intermediate frequency signal by the digital channelizer.
摘要翻译：根据本发明的实施例的系统和方法包括将卫星信号转换为用于内容解码的中频信号，以及使用数字信号处理在卫星信号内选择调制数字数据进行内容解码。一个实施例包括被配置为从包括调制到载波上的多个内容信道的输入信号中选择至少一个内容信道的系统，所述系统包括：数字信道切换器开关，包括：高速模数转换器，被配置为数字化中间频率信号; 配置为从数字化的中频信号数字地调谐内容信道的数字信道器; 以及高速数模转换器，被配置为使用由数字通道器从数字化的中频信号数字调谐的内容通道产生模拟输出信号。

19. 发明申请

US20100202505A1 Equalizer Architecture for Data Communication 有权
标题翻译：数据通信的均衡器架构
公开(公告)号：US20100202505A1
公开(公告)日：2010-08-12
申请号：US12762824
申请日：2010-04-19
申请人： Tommy Yu , Amy Gayle Hundhausen
发明人： Tommy Yu , Amy Gayle Hundhausen
IPC分类号： H04L27/01
CPC分类号： H04L25/03038 , H04L2025/03477 , H04L2025/03617 , H04L2027/0024 , H04L2027/0055
摘要： An update algorithm for equalizer coefficients in a communications system using phase correction symbols. Instead of using a traditional all symbols slicer update algorithm, the equalizer is updated during phase correction symbols for optimal performance in low signal-to-noise ratio conditions. In lower signal-to-noise ratio conditions, the equalizer uses a phase correction circuit to compensate for distortion caused by a communication channel when a demodulated data stream contains an unknown phase offsets resulting from a fast dynamic distortion. More specifically, the phase correction circuit uses a phase correction signal to correct for the unknown phase offsets in a demodulated data stream in lower signal-to-noise ratio conditions. The equalizer then corrects for distortion caused by the communication channel based upon the phase corrected demodulated data stream.
摘要翻译：一种使用相位校正符号的通信系统中均衡器系数的更新算法。代替使用传统的所有符号限幅器更新算法，均衡器在相位校正符号期间更新，以在低信噪比条件下实现最佳性能。在较低的信噪比条件下，当解调的数据流包含由快速动态失真导致的未知相位偏移时，均衡器使用相位校正电路来补偿由通信信道引起的失真。更具体地，相位校正电路使用相位校正信号来校正在较低信噪比条件下的解调数据流中的未知相位偏移。然后，均衡器基于相位校正的解调数据流校正由通信信道引起的失真。

20. 发明授权

US07590177B2 Method and system for receiving pulse width keyed signals 有权
标题翻译：用于接收脉宽键控信号的方法和系统
公开(公告)号：US07590177B2
公开(公告)日：2009-09-15
申请号：US11926969
申请日：2007-10-29
申请人： Tommy Yu
发明人： Tommy Yu
IPC分类号： H03K7/08
CPC分类号： H04L25/4902
摘要： Provided is a method to process a pulse width coded signal. The method includes digitizing a received pulse width coded signal and transforming the digitized signal to at least one of power domain and absolute value domain. The converting produces a converted signal. The method also includes estimating a signal power of the converted signal in a wide band filter to produce data representative of a first signal having first type signal shape properties and estimating a signal power of the converted signal in a narrow band filter to produce data representative of a second signal having second type signal shape properties. Finally, the first and second type data are compared to produce information representative of pulse width characteristics of the received signal.
摘要翻译：提供了一种处理脉冲宽度编码信号的方法。该方法包括数字化接收到的脉冲宽度编码信号，并将数字化信号转换成功率域和绝对值域中的至少一个。转换产生转换信号。该方法还包括估计宽带滤波器中的转换信号的信号功率，以产生表示具有第一类信号形状属性的第一信号的数据，并估计窄带滤波器中的转换信号的信号功率，以产生表示具有第二类型信号形状特性的第二信号。最后，将第一和第二类型数据进行比较，以产生表示接收信号的脉冲宽度特性的信息。

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