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：US07532070B2

公开(公告)日：2009-05-12

申请号：US11859802

申请日：2007-09-24

申请人： Nick Cowley ,  Ruiyan Zhao

发明人： Nick Cowley ,  Ruiyan Zhao

IPC分类号： H03F3/45

CPC分类号： H03G1/0023 ,  H03F1/26 ,  H03F3/19 ,  H03F3/211 ,  H03F2200/294 ,  H03F2200/451 ,  H03G1/0088

摘要： An automatic gain control (AGC) system and method for implementing a wide dynamic range automatic gain control (AGC) are disclosed. The AGC system features a large gain adjustment suitable for integration in silicon tuners. The AGC structure employs a pair of classical current steering stages, architecturally arranged to share the gain back-off characteristic in a novel “ping-pong” arrangement. The AGC system and method deliver a wide dynamic range at low power dissipation in radio frequency (RF) systems, but may be implemented as well in other applications.

摘要翻译： 公开了一种用于实现宽动态范围自动增益控制（AGC）的自动增益控制（AGC）系统和方法。 AGC系统具有适合于集成在硅调谐器中的大增益调整。 AGC结构采用一对经典的电流转向级，在一个新颖的“乒乓”设计中，在架构上被布置成共享增益补偿特性。 AGC系统和方法在射频（RF）系统中以低功耗提供宽动态范围，但也可以在其他应用中实现。

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：US20080001664A1

公开(公告)日：2008-01-03

申请号：US11479879

申请日：2006-06-30

申请人： Nick Cowley ,  Mark Mudd

发明人： Nick Cowley ,  Mark Mudd

IPC分类号： H03F3/45

CPC分类号： H03F3/45089 ,  H03F2200/451 ,  H03F2203/45302 ,  H03F2203/45311 ,  H03F2203/45392 ,  H03F2203/45612 ,  H03G3/3036

摘要： A compound automatic gain control (AGC) circuit includes multiple AGC stages coupled with signal input nodes and signal output nodes in parallel. Each of the AGC stages has separate, individually controllable, control inputs. During gain back off, the AGC stages are backed off in sequence.

摘要翻译： 复合自动增益控制（AGC）电路包括与信号输入节点和信号输出节点并联耦合的多个AGC级。 每个AGC级具有单独的，可单独控制的控制输入。 在增益恢复期间，AGC级按顺序退回。

公开(公告)号：US20050118968A1

公开(公告)日：2005-06-02

申请号：US10992785

申请日：2004-11-22

申请人： Nick Cowley

发明人： Nick Cowley

IPC分类号： H03D7/16 ,  H04B1/18 ,  H04B1/16 ,  H04B1/26

CPC分类号： H03D7/161

摘要： A tuner comprising a signal input 2 for receiving an input signal comprising multichannel data, a filter 3 having an input coupled to said signal input, the filter being tunable to pass a selected frequency channel, a first frequency changer 8 having an input coupled to an output of said filter 3 and arranged to upconvert the filtered input signal so that said selected frequency channel is shifted to a predefined high intermediate frequency, a second filter 9 having an input coupled to an output of said first mixer 9 and arranged to pass said predefined high intermediate frequency, and a second frequency shifter 12 having an input coupled to an output of said second filter 9 and arranged to downconvert the filtered high intermediate frequency to a predefined output frequency.

摘要翻译： 一种调谐器，包括用于接收包括多声道数据的输入信号的信号输入2，具有耦合到所述信号输入的输入的滤波器3，可调谐的滤波器以通过选定的频道;第一变频器8，具有耦合到 所述滤波器3的输出并被布置成上变频滤波后的输入信号，使得所选择的频道被转移到预定的高中频;第二滤波器9具有耦合到所述第一混频器9的输出并被布置成通过所述预定义的 以及第二移频器12，其具有耦合到所述第二滤波器9的输出并被布置成将滤波的高中频下变频到预定输出频率的输入。

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：US20100165212A1

公开(公告)日：2010-07-01

申请号：US12317870

申请日：2008-12-29

申请人： Nick Cowley ,  Peter Coe

发明人： Nick Cowley ,  Peter Coe

IPC分类号： H04N5/50 ,  H04B1/18

CPC分类号： H04N5/455 ,  H04N5/268 ,  H04N21/4263 ,  H04N21/4382

摘要： Techniques for the selection of signals from multiple sources are disclosed. For instance, an apparatus may include a first tuner module, a second tuner module, and a multiplexer. The first tuner module generates a first tuned signal from a first RF signal, and the second tuner module generates a second tuned signal from a second RF signal. The first RF signal corresponds to a first signal source, and the second RF signal corresponds to a second signal source. Based on a selection signal, the multiplexer selects one of the first tuned signal and the second tuned signal.

摘要翻译： 公开了用于从多个源选择信号的技术。 例如，设备可以包括第一调谐器模块，第二调谐器模块和多路复用器。 第一调谐器模块从第一RF信号产生第一调谐信号，并且第二调谐器模块从第二RF信号产生第二调谐信号。 第一RF信号对应于第一信号源，第二RF信号对应于第二信号源。 基于选择信号，多路选择器选择第一调谐信号和第二调谐信号之一。

公开(公告)号：US07672657B2

公开(公告)日：2010-03-02

申请号：US11427045

申请日：2006-06-28

申请人： Nick Cowley ,  David Albert Sawyer

发明人： Nick Cowley ,  David Albert Sawyer

IPC分类号： H04B1/10

CPC分类号： H04B1/18 ,  H03H11/1291 ,  H03J5/244 ,  H03J2200/08 ,  H03J2200/10 ,  H03J2200/15

摘要： Embodiments of an active bandpass filter are described. Such a filter includes a transistor; a series-tuned inductive-capacitive (LC) network (STLCN) in a common source circuit associated with the transistor to produce a tuned degenerative filtering of at least one interfering signal; and a first, variable resistance associated with the STLCN to provide a first control of a resonance quality factor (Q) associated with the filter. Other embodiments may be described and claimed.

摘要翻译： 描述了有源带通滤波器的实施例。 这种滤波器包括晶体管; 与所述晶体管相关联的公共源电路中的串联调谐电感 - 电容（LC）网络（STLCN），以产生至少一个干扰信号的调谐退化滤波; 以及与STLCN相关联的第一可变电阻，以提供与滤波器相关联的谐振品质因子（Q）的第一控制。 可以描述和要求保护其他实施例。