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。

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。

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。

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。

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。

公开(公告)号：US20080171517A1

公开(公告)日：2008-07-17

申请号：US11648849

申请日：2006-12-29

申请人： Isaac Ali ,  David Albert Sawyer ,  Nick Cowley

发明人： Isaac Ali ,  David Albert Sawyer ,  Nick Cowley

IPC分类号： G01S7/40 ,  H04B17/00

CPC分类号： H04B17/21 ,  H04B17/0085 ,  H04B17/29

摘要： In some embodiments, a radio transmitter assembly comprises a test signal generator module to generate a first instance of a test signal, the test signal comprising a code, a test signal receiver module which receives the code, a signal combiner to combine the first instance of the test signal with a real signal to create a combined signal, a radio signal generator to generate a radio signal from the combined signal, a signal separator to separate a second instance of the test signal from the radio signal, and comparator logic in the test signal receiver module to compare the code with a code embedded in the second instance of the test signal in the test signal receiver module.

摘要翻译： 在一些实施例中，无线电发射器组件包括测试信号发生器模块以产生测试信号的第一实例，测试信号包括代码，接收代码的测试信号接收器模块，组合信号的第一实例 具有实信号的测试信号以产生组合信号，无线电信号发生器从组合信号产生无线电信号，信号分离器将测试信号的第二个实例与无线电信号分开，以及测试中的比较器逻辑 信号接收器模块，用于将代码与嵌入在测试信号接收器模块中的测试信号的第二实例中的代码进行比较。

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：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：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。