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1. 发明申请

US20100165212A1 Signal source selection techniques 审中-公开
标题翻译：信号源选择技术
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。

2. 发明授权

US08351862B2 Device, system, and method of mitigating interference to digital television signals 失效
标题翻译：降低数字电视信号干扰的装置，系统和方法
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。

3. 发明申请

US20080231759A1 REMOVING INTERFERING SIGNALS IN A BROADBAND RADIO FREQUENCY RECEIVER 失效
标题翻译：在宽带无线电频率接收机中删除干扰信号
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。

4. 发明申请

US20090268101A1 Direct conversion television receiver 审中-公开
标题翻译：直接转换电视接收机
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。

5. 发明申请

US20090116586A1 DIRECT CONVERSION RECEIVER AND METHOD FOR CORRECTING PHASE IMBALANCE THEREIN 有权
标题翻译：直接转换接收器和校正相位不平衡的方法
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。

6. 发明申请

US20080049875A1 INTEGRATED TUNER APPARATUS, SYSTEMS, AND METHODS 审中-公开
标题翻译：集成调谐器设备，系统和方法
公开(公告)号：US20080049875A1
公开(公告)日：2008-02-28
申请号：US11467390
申请日：2006-08-25
申请人： Nick Cowley , David Albert Sawyer , Isaac Ali
发明人： Nick Cowley , David Albert Sawyer , Isaac Ali
IPC分类号： H03D3/00
CPC分类号： H03D3/007
摘要： Embodiments of a zero intermediate frequency (ZIF) tuner are described generally herein. Other embodiments may be described and claimed.
摘要翻译：本文一般地描述零中频（ZIF）调谐器的实施例。可以描述和要求保护其他实施例。

7. 发明申请

US20080003970A1 TUNABLE FILTER APPARATUS, SYSTEMS, AND METHODS 失效
标题翻译： TUNABLE过滤器，系统和方法
公开(公告)号：US20080003970A1
公开(公告)日：2008-01-03
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： H04B1/18 , H04B1/10 , H04B1/16
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 generally herein. Other embodiments may be described and claimed.
摘要翻译：有源带通滤波器的实施例一般在此被描述。可以描述和要求保护其他实施例。

8. 发明授权

US07626457B2 AGC module and method for controlling noise figure and intermodulation characteristics therein 失效
标题翻译： AGC模块及其中控制噪声系数和互调特性的方法
公开(公告)号：US07626457B2
公开(公告)日：2009-12-01
申请号：US11863701
申请日：2007-09-28
申请人： Mark Mudd , Isaac Ali , Ruiyan Zhao , Nick Cowley , Colin Perry , Richard Goldman
发明人： Mark Mudd , Isaac Ali , Ruiyan Zhao , Nick Cowley , Colin Perry , Richard Goldman
IPC分类号： H03F3/45
CPC分类号： H03F1/26 , H03F3/19 , H03F3/211 , H03F2200/294 , H03F2200/451 , H03G1/0023
摘要： An Automatic Gain Control (AGC) module for controlling Noise Figure (NF) and IM characteristics therein is disclosed. The AGC module comprises a plurality of AGC stages. Each AGC stage comprises a differential amplifier circuit, an input signal transistor and a current-steering circuit. Differential amplifier circuits of the plurality of AGC stages receive control signals at their differential inputs and their output is connected to a common load. The input signal transistors of the plurality of AGC stages receive a common input signal and is further coupled to the differential amplifier circuit and the current-steering circuit. The current-steering circuits and the control signals at the differential amplifier circuits control gain of the each AGC stage of the plurality of AGC stage, which is used to control the NF and the IM characteristics.
摘要翻译：公开了一种用于控制噪声系数（NF）和IM特性的自动增益控制（AGC）模块。 AGC模块包括多个AGC级。每个AGC级包括差分放大器电路，输入信号晶体管和电流 - 转向电路。多个AGC级的差分放大器电路在其差分输入处接收控制信号，并且其输出连接到公共负载。多个AGC级的输入信号晶体管接收公共输入信号，并且还耦合到差分放大器电路和电流转向电路。差动放大器电路中的电流导向电路和控制信号控制用于控制NF和IM特性的多个AGC级的每个AGC级的增益。

9. 发明申请

US20090085660A1 AGC MODULE AND METHOD FOR CONTROLLING NOISE FIGURE AND INTERMODULATION CHARACTERISTICS THEREIN 失效
标题翻译：用于控制噪声图的AGC模块和方法及其互连特性
公开(公告)号：US20090085660A1
公开(公告)日：2009-04-02
申请号：US11863701
申请日：2007-09-28
申请人： Mark Mudd , Isaac Ali , Ruiyan Zhao , Nick Cowley , Colin Perry , Richard Goldman
发明人： Mark Mudd , Isaac Ali , Ruiyan Zhao , Nick Cowley , Colin Perry , Richard Goldman
IPC分类号： H03F3/45
CPC分类号： H03F1/26 , H03F3/19 , H03F3/211 , H03F2200/294 , H03F2200/451 , H03G1/0023
摘要： An Automatic Gain Control (AGC) module for controlling Noise Figure (NF) and IM characteristics therein is disclosed. The AGC module comprises a plurality of AGC stages. Each AGC stage comprises a differential amplifier circuit, an input signal transistor and a current-steering circuit. Differential amplifier circuits of the plurality of AGC stages receive control signals at their differential inputs and their output is connected to a common load. The input signal transistors of the plurality of AGC stages receive a common input signal and is further coupled to the differential amplifier circuit and the current-steering circuit. The current-steering circuits and the control signals at the differential amplifier circuits control gain of the each AGC stage of the plurality of AGC stage, which is used to control the NF and the IM characteristics.
摘要翻译：公开了一种用于控制噪声系数（NF）和IM特性的自动增益控制（AGC）模块。 AGC模块包括多个AGC级。每个AGC级包括差分放大器电路，输入信号晶体管和电流 - 转向电路。多个AGC级的差分放大器电路在其差分输入处接收控制信号，并且其输出连接到公共负载。多个AGC级的输入信号晶体管接收公共输入信号，并且还耦合到差分放大器电路和电流转向电路。差动放大器电路中的电流导向电路和控制信号控制用于控制NF和IM特性的多个AGC级的每个AGC级的增益。

10. 发明授权

US07492222B2 Compound automatic gain control 失效
标题翻译：复合自动增益控制
公开(公告)号：US07492222B2
公开(公告)日：2009-02-17
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： H03F3/68
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。

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