公开(公告)号：US08351862B2

公开(公告)日：2013-01-08

申请号：US11968168

申请日：2008-01-01

申请人： Ernest T. Tsui ,  Nick Cowley ,  Bernard Arambepola

发明人： Ernest T. Tsui ,  Nick Cowley ,  Bernard Arambepola

IPC分类号： H04B1/00

CPC分类号： H04B7/0857 ,  H04N21/414

摘要： Device, system, and method of mitigating interference to digital television signals. For example, an apparatus includes a diversity-based digital television receiver having a filter controller and at least first and second channel paths, wherein the first channel path includes a first Global System for Mobile communication (GSM) reject filter, the second channel path includes a second GSM reject filter, the second channel path is parallel to the first channel path, and the filter controller is to selectively switch an operational state of the first GSM reject filter.

摘要翻译： 降低数字电视信号干扰的装置，系统和方法。 例如，一种装置包括具有滤波器控制器和至少第一和第二信道路径的基于分集的数字电视接收机，其中第一信道路径包括第一全球移动通信系统（GSM）拒绝滤波器，第二信道路径包括 第二GSM拒绝滤波器，第二信道路径平行于第一信道路径，并且滤波器控制器选择性地切换第一GSM拒绝滤波器的工作状态。

公开(公告)号：US08743977B2

公开(公告)日：2014-06-03

申请号：US12456894

申请日：2009-06-23

申请人： Bernard Arambepola ,  Nick Cowley

发明人： Bernard Arambepola ,  Nick Cowley

IPC分类号： H04K1/10

CPC分类号： H04N5/4401 ,  H04L7/0029 ,  H04L25/05 ,  H04N5/455 ,  H04N21/4383

摘要： Techniques for the reception and processing of wireless signals are disclosed. For instance, an apparatus may include a first hardware module (e.g., a mixed signal module) and a second hardware module (e.g., a digital signal module). The first hardware module may convert an analog signal corresponding to a received wireless signal into a digital signal having a first sampling rate. In turn, channel filtering may be performed on this digital signal. Following this, the filtered digital signal may be resampled from the first sampling rate to a second sampling rate. At this point, the resampled signal may be transferred across an interface from the first hardware module to the second hardware module. Upon receipt, the second hardware module may correct a sampling rate error in the second sampling rate, and demodulate the digital signal into one or more symbols.

摘要翻译： 公开了接收和处理无线信号的技术。 例如，设备可以包括第一硬件模块（例如，混合信号模块）和第二硬件模块（例如，数字信号模块）。 第一硬件模块可以将对应于接收到的无线信号的模拟信号转换为具有第一采样率的数字信号。 反过来，可以对该数字信号执行信道滤波。 之后，滤波后的数字信号可以从第一采样率重采样到第二采样率。 此时，重新采样的信号可以跨接口从第一硬件模块传送到第二硬件模块。 在接收时，第二硬件模块可以校正第二采样率中的采样率误差，并将数字信号解调成一个或多个符号。

公开(公告)号：US20100322326A1

公开(公告)日：2010-12-23

申请号：US12456894

申请日：2009-06-23

申请人： Bernard Arambepola ,  Nick Cowley

发明人： Bernard Arambepola ,  Nick Cowley

IPC分类号： H04K1/10 ,  H03M1/00 ,  H03M1/12

CPC分类号： H04N5/4401 ,  H04L7/0029 ,  H04L25/05 ,  H04N5/455 ,  H04N21/4383

摘要： Techniques for the reception and processing of wireless signals are disclosed. For instance, an apparatus may include a first hardware module (e.g., a mixed signal module) and a second hardware module (e.g., a digital signal module). The first hardware module may convert an analog signal corresponding to a received wireless signal into a digital signal having a first sampling rate. In turn, channel filtering may be performed on this digital signal. Following this, the filtered digital signal may be resampled from the first sampling rate to a second sampling rate. At this point, the resampled signal may be transferred across an interface from the first hardware module to the second hardware module. Upon receipt, the second hardware module may correct a sampling rate error in the second sampling rate, and demodulate the digital signal into one or more symbols.

摘要翻译： 公开了接收和处理无线信号的技术。 例如，设备可以包括第一硬件模块（例如，混合信号模块）和第二硬件模块（例如，数字信号模块）。 第一硬件模块可以将对应于接收到的无线信号的模拟信号转换为具有第一采样率的数字信号。 反过来，可以对该数字信号执行信道滤波。 之后，滤波后的数字信号可以从第一采样率重采样到第二采样率。 此时，重新采样的信号可以跨接口从第一硬件模块传送到第二硬件模块。 在接收时，第二硬件模块可以校正第二采样率中的采样率误差，并将数字信号解调成一个或多个符号。

公开(公告)号：US20090097600A1

公开(公告)日：2009-04-16

申请号：US11870028

申请日：2007-10-10

申请人： Bernard Arambepola ,  Nick Cowley

发明人： Bernard Arambepola ,  Nick Cowley

IPC分类号： H04L1/02

CPC分类号： H04L1/02 ,  H04B7/0857 ,  H04B7/0868 ,  H04B7/0877

摘要： The present disclosure provides a diversity receiver. The diversity receiver includes a plurality of tuners, a plurality of demodulators operatively coupled to the plurality of tuners and a controller operatively coupled to the plurality of demodulators and the plurality of tuners. Each tuner is capable of receiving a modulated signal from a path of a plurality of distinct paths. The controller determines information for each path and computes a ratio of signal strength to an additive noise for each path based on determined information. Further, the controller adjusts power of signal in each path based on comparison of computed ratio of signal strength to additive noise with a predetermined threshold. The diversity receiver also includes a MRC circuitry operatively coupled to the plurality of demodulators and configured to combine the signal of each path for obtaining a resultant combined signal having an improved ratio of signal strength to additive noise.

摘要翻译： 本公开提供了一种分集接收机。 分集接收机包括多个调谐器，可操作地耦合到多个调谐器的多个解调器和可操作地耦合到多个解调器和多个调谐器的控制器。 每个调谐器能够从多个不同路径的路径接收调制信号。 控制器确定每个路径的信息，并且基于确定的信息计算每个路径的信号强度与加性噪声的比率。 此外，控制器基于计算的信号强度与加性噪声的比率与预定阈值的比较来调整每个路径中的信号功率。 分集接收机还包括可操作地耦合到多个解调器并且被配置为组合每个路径的信号以获得具有改善的信号强度与加性噪声比的合成信号的MRC电路。

公开(公告)号：US20090268101A1

公开(公告)日：2009-10-29

申请号：US12150006

申请日：2008-04-24

申请人： Parveen Shukla ,  Bernard Arambepola ,  Thushara Hewavithana ,  Nick Cowley

发明人： Parveen Shukla ,  Bernard Arambepola ,  Thushara Hewavithana ,  Nick Cowley

IPC分类号： H04N5/44 ,  H04B1/10

CPC分类号： H04B1/30 ,  H03D3/009 ,  H04L27/3863 ,  H04N5/455 ,  H04N21/4382

摘要： A direct conversion television receiver may include a phase de-rotator which substantially undoes the phase rotation of a phase rotator. The phase de-rotator takes the low pass filtered signal and substantially removes the rotation caused by the phase rotator. As a result, it is easier to estimate the phase and gain imbalance and to make a correction for the phase and gain imbalance, via a feedback loop, without the effects of phase rotation.

摘要翻译： 直接转换电视接收机可以包括基本上消除相位旋转器的相位旋转的相位去旋转器。 相位去旋转器采用低通滤波信号，并且基本上消除了由相位旋转器引起的旋转。 因此，更容易估计相位和增益不平衡，并通过反馈回路对相位和增益不平衡进行校正，而不会产生相位旋转的影响。

公开(公告)号：US20090116586A1

公开(公告)日：2009-05-07

申请号：US11933579

申请日：2007-11-01

申请人： Bernard Arambepola ,  Nick Cowley

发明人： Bernard Arambepola ,  Nick Cowley

IPC分类号： H04B1/10 ,  H04L27/22

CPC分类号： H04L27/3863 ,  H03D3/009 ,  H04B1/30 ,  H04L2027/0024

摘要： A direct conversion receiver and a method for correcting phase imbalance therein is disclosed. An input signal is applied to an in-phase channel and a quadrature channel of the receiver. The input signal is processed by the direct conversion receiver to obtain an in-phase zero intermediate frequency (IF) signal in the in-phase channel and a quadrature zero-IF signal in the quadrature channel. The in-phase zero-IF signal and the quadrature zero-IF signal are filtered to obtain a fixed band signal. A phase imbalance correction value is obtained for the fixed-band quadrature zero-IF signal as a function of the frequency of the fixed-band in-phase zero-IF signal and the fixed-band quadrature zero-IF signal. The in-phase zero-IF signal and the quadrature zero-IF signal are sampled and the phase imbalance correction value is applied using an interpolation to the sampled quadrature zero-IF signal or to the sampled in-phase zero-IF signal to correct the phase imbalance in the direct conversion receiver.

摘要翻译： 公开了一种用于校正相位不平衡的直接转换接收机和方法。 输入信号被施加到接收机的同相信道和正交信道。 输入信号由直接转换接收机处理，以获得同相信道中的同相零中频（IF）信号和正交信道中的正交零中频信号。 对同相零中频信号和正交零中频信号进行滤波以获得固定频带信号。 作为固定频带同相零中频信号和固定频带正交零中频信号的频率的函数，针对固定频带正交零中频信号获得相位不平衡校正值。 对同相零中频信号和正交零中频信号进行采样，并使用插值对采样的正交零中频信号或采样同相零中频信号施加相位不平衡校正值，以校正 直接转换接收机的相位不平衡。

公开(公告)号：US08116404B2

公开(公告)日：2012-02-14

申请号：US11870028

申请日：2007-10-10

申请人： Bernard Arambepola ,  Nick Cowley

发明人： Bernard Arambepola ,  Nick Cowley

IPC分类号： H04B7/185 ,  H04B7/00 ,  H04B7/02 ,  H04L1/02

CPC分类号： H04L1/02 ,  H04B7/0857 ,  H04B7/0868 ,  H04B7/0877

摘要： The present disclosure provides a diversity receiver. The diversity receiver includes a plurality of tuners, a plurality of demodulators operatively coupled to the plurality of tuners and a controller operatively coupled to the plurality of demodulators and the plurality of tuners. Each tuner is capable of receiving a modulated signal from a path of a plurality of distinct paths. The controller determines information for each path and computes a ratio of signal strength to an additive noise for each path based on determined information. Further, the controller adjusts power of signal in each path based on comparison of computed ratio of signal strength to additive noise with a predetermined threshold. The diversity receiver also includes a MRC circuitry operatively coupled to the plurality of demodulators and configured to combine the signal of each path for obtaining a resultant combined signal having an improved ratio of signal strength to additive noise.

摘要翻译： 本公开提供了一种分集接收机。 分集接收机包括多个调谐器，可操作地耦合到多个调谐器的多个解调器和可操作地耦合到多个解调器和多个调谐器的控制器。 每个调谐器能够从多个不同路径的路径接收调制信号。 控制器确定每个路径的信息，并且基于确定的信息计算每个路径的信号强度与加性噪声的比率。 此外，控制器基于计算的信号强度与加性噪声的比率与预定阈值的比较来调整每个路径中的信号功率。 分集接收机还包括可操作地耦合到多个解调器并且被配置为组合每个路径的信号以获得具有改善的信号强度与加性噪声比的合成信号的MRC电路。

公开(公告)号：US08036319B2

公开(公告)日：2011-10-11

申请号：US11933579

申请日：2007-11-01

申请人： Bernard Arambepola ,  Nick Cowley

发明人： Bernard Arambepola ,  Nick Cowley

IPC分类号： H03D3/22

CPC分类号： H04L27/3863 ,  H03D3/009 ,  H04B1/30 ,  H04L2027/0024

摘要： A direct conversion receiver and a method for correcting phase imbalance including applying an input signal to an in-phase channel and a quadrature channel of the receiver. The input signal is processed by the receiver to obtain an in-phase zero intermediate frequency (IF) signal in the in-phase channel and a quadrature zero-IF signal in the quadrature channel. The in-phase zero-IF signal and the quadrature zero-IF signal are filtered to obtain a fixed band signal. A phase imbalance correction value is obtained for the fixed-band quadrature zero-IF signal as a function of the frequency of the fixed-band in-phase zero-IF signal and the fixed-band quadrature zero-IF signal. The in-phase zero-IF signal and the quadrature zero-IF signal are sampled and the phase imbalance correction value is applied using an interpolation to the sampled quadrature zero-IF signal or to the sampled in-phase zero-IF signal to correct the phase imbalance in the direct conversion receiver.

摘要翻译： 直接转换接收机和用于校正相位不平衡的方法，包括将输入信号施加到接收机的同相信道和正交信道。 输入信号由接收机处理，以获得同相信道中的同相零中频（IF）信号和正交信道中的正交零中频信号。 对同相零中频信号和正交零中频信号进行滤波以获得固定频带信号。 作为固定频带同相零中频信号和固定频带正交零中频信号的频率的函数，针对固定频带正交零中频信号获得相位不平衡校正值。 对同相零中频信号和正交零中频信号进行采样，并使用插值对采样的正交零中频信号或采样同相零中频信号施加相位不平衡校正值，以校正 直接转换接收机的相位不平衡。

公开(公告)号：US20090167945A1

公开(公告)日：2009-07-02

申请号：US11968168

申请日：2008-01-01

申请人： Ernest T. Tsui ,  Nick Cowley ,  Bernard Arambepola

发明人： Ernest T. Tsui ,  Nick Cowley ,  Bernard Arambepola

IPC分类号： H04N5/46 ,  H04N7/00

CPC分类号： H04B7/0857 ,  H04N21/414

摘要： Device, system, and method of mitigating interference to digital television signals. For example, an apparatus includes a diversity-based digital television receiver having a filter controller and at least first and second channel paths, wherein the first channel path includes a first Global System for Mobile communication (GSM) reject filter, the second channel path includes a second GSM reject filter, the second channel path is parallel to the first channel path, and the filter controller is to selectively switch an operational state of the first GSM reject filter.

摘要翻译： 降低数字电视信号干扰的装置，系统和方法。 例如，一种装置包括具有滤波器控制器和至少第一和第二信道路径的基于分集的数字电视接收机，其中第一信道路径包括第一全球移动通信系统（GSM）拒绝滤波器，第二信道路径包括 第二GSM拒绝滤波器，第二信道路径平行于第一信道路径，并且滤波器控制器选择性地切换第一GSM拒绝滤波器的工作状态。

公开(公告)号：US20080231759A1

公开(公告)日：2008-09-25

申请号：US11688522

申请日：2007-03-20

申请人： Nick Cowley ,  Sawyer Albert David ,  Mark Mudd ,  Richard Goldman ,  Colin Perry ,  Ruiyan Zhao

发明人： Nick Cowley ,  Sawyer Albert David ,  Mark Mudd ,  Richard Goldman ,  Colin Perry ,  Ruiyan Zhao

IPC分类号： H03H7/01

CPC分类号： H04B1/0067 ,  H03H7/0161 ,  H04B1/1036 ,  H04N5/4401 ,  H04N21/42607

摘要： Various embodiments are directed to removing interfering signals in a broadband radio frequency (RF) receiver by implementing a silicon tuner arranged to replicate high quality factor (Q) performance without the advantages of using high Q components available for module tuners. In one or more embodiments, tuned filter elements within a broadband silicon tuner are reused to maximize the attenuation of unwanted signals while minimizing induced undesirable channel ripple. In various implementations, a number of tuned passive inductor/capacitor filter elements are combined as required such that filter elements for an unused frequency band are reconfigured to provide attenuation of and enhanced immunity to unwanted signals. Other embodiments are described and claimed.

摘要翻译： 各种实施例旨在通过实施布置成复制高质量因子（Q）性能的硅调谐器而不使用可用于模块调谐器的高Q分量的优点来去除宽带射频（RF）接收机中的干扰信号。 在一个或多个实施例中，宽带硅调谐器内的调谐滤波器元件被重新使用以最大化不需要的信号的衰减，同时最小化诱导的不期望的信道纹波。 在各种实施方案中，根据需要组合多个调谐的无源电感器/电容器滤波器元件，使得针对未使用频带的滤波器元件被重新配置以提供衰减并增强对不想要的信号的抗扰性。 描述和要求保护其他实施例。