公开(公告)号：US08665931B2

公开(公告)日：2014-03-04

申请号：US13539175

申请日：2012-06-29

Applicant: Ali Afsahi ,  Utku Seckin ,  Colin Fraser ,  Navid Lashkarian ,  Konrad Kratochwil ,  Arya Reza Behzad ,  Dengwei Fu

Inventor： Ali Afsahi ,  Utku Seckin ,  Colin Fraser ,  Navid Lashkarian ,  Konrad Kratochwil ,  Arya Reza Behzad ,  Dengwei Fu

IPC: H04L5/16

CPC classification number: H03F1/0222 ,  H03F1/0266 ,  H03F1/223 ,  H03F2200/18

Abstract: Communication processing paths include distortions, such as DC offset in the baseband analog path, local oscillator feed-through distortion, and nonlinearity of gm's and power amplifiers which are calibrated for, separately or in combination. The cascaded DC offset and nonlinear distortions are modeled separately or in combination using even-and-odd order polynomials. A loopback path from the output of one or more distortion causing devices passes through a measurement and calculation module. The calculation module calculates predistortion polynomial's coefficients which will be stored in a look-up table to be used by a baseband predistorter to calibrate the path. The look-up table is stored locally or remotely.

Abstract translation: 通信处理路径包括失真，例如基带模拟路径中的DC偏移，本地振荡器馈通失真以及gm和功率放大器的非线性，其被单独地或组合地校准。 级联DC偏移和非线性失真是单独建模的，或者使用偶数和奇数阶多项式组合。 来自一个或多个引起失真的设备的输出的回送路径通过测量和计算模块。 计算模块计算将被存储在由基带预失真器使用以校准路径的查找表中的预失真多项式系数。 查找表存储在本地或远程。

公开(公告)号：US20120264379A1

公开(公告)日：2012-10-18

申请号：US13536467

申请日：2012-06-28

Applicant: Colin Fraser ,  Mark Gonikberg ,  Arya Reza Behzad

Inventor： Colin Fraser ,  Mark Gonikberg ,  Arya Reza Behzad

IPC: H04B17/00 ,  H04B1/02 ,  H04B1/38

CPC classification number: H04B1/0028 ,  H03F1/3241 ,  H04B1/0475 ,  H04B17/11 ,  H04B2001/0425

Abstract: A wireless device includes an antenna, Radio Frequency (RF) circuitry, and baseband processing circuitry. The baseband processing circuitry couples to the RF circuitry and is operable to determine operational calibrations settings that may include pre-distortion characteristics and RF signal path settings, both of which are determined via calibration operations. The calibration operations are initiated when an operational value of the wireless device compares unfavorably to at least one operational threshold. Monitoring circuitry coupled to the RF circuitry and to the baseband processing circuitry monitors operational characteristics of the RF circuitry. Calibration operations may be initiated based upon RF circuitry temperature, supply voltage, PA current, PA gain input level/average, among other triggers.

Abstract translation: 无线设备包括天线，射频（RF）电路和基带处理电路。 基带处理电路耦合到RF电路，并且可操作以确定可能包括预失真特性和RF信号路径设置的操作校准设置，这两者均通过校准操作确定。 当无线设备的操作值不利于至少一个操作阈值时，启动校准操作。 耦合到RF电路和基带处理电路的监控电路监视RF电路的操作特性。 校准操作可以基于RF电路温度，电源电压，PA电流，PA增益输入电平/平均值等触发。

公开(公告)号：US08233866B2

公开(公告)日：2012-07-31

申请号：US12431231

申请日：2009-04-28

Applicant: Colin Fraser ,  Mark Gonikberg ,  Arya Reza Behzad

Inventor： Colin Fraser ,  Mark Gonikberg ,  Arya Reza Behzad

IPC: H04B17/00

CPC classification number: H04B1/0028 ,  H03F1/3241 ,  H04B1/0475 ,  H04B17/11 ,  H04B2001/0425

Abstract: A wireless device includes an antenna, Radio Frequency (RF) circuitry, and baseband processing circuitry. The baseband processing circuitry couples to the RF circuitry and is operable to determine operational calibrations settings that may include pre-distortion characteristics and RF signal path settings, both of which are determined via calibration operations. The calibration operations are initiated when an operational value of the wireless device compares unfavorably to at least one operational threshold. Monitoring circuitry coupled to the RF circuitry and to the baseband processing circuitry monitors operational characteristics of the RF circuitry. Calibration operations may be initiated based upon RF circuitry temperature, supply voltage, PA current, PA gain input level/average, among other triggers.

Abstract translation: 无线设备包括天线，射频（RF）电路和基带处理电路。 基带处理电路耦合到RF电路，并且可操作以确定可能包括预失真特性和RF信号路径设置的操作校准设置，这两者均通过校准操作确定。 当无线设备的操作值不利于至少一个操作阈值时，启动校准操作。 耦合到RF电路和基带处理电路的监控电路监视RF电路的操作特性。 校准操作可以基于RF电路温度，电源电压，PA电流，PA增益输入电平/平均值等触发。

公开(公告)号：US20100273430A1

公开(公告)日：2010-10-28

申请号：US12431224

申请日：2009-04-28

Applicant: Colin Fraser ,  Arya Reza Behzad

Inventor： Colin Fraser ,  Arya Reza Behzad

IPC: H04B17/00

CPC classification number: H04B17/21

Abstract: Transmitter calibration of a wireless device is initiated based upon an operational value of the wireless device. The calibration operations are performed over a plurality of calibration time periods, each calibration time period divided into a plurality of first interval portions interspersed with a plurality of second interval portions, for each calibration time period of the plurality of calibration time periods, respective calibration settings are applied. During the first interval portions substantially fixed first current input is applied to at least one gain adjustable element of the RF circuitry. During the second interval portions, varying current input is applied to the at least one gain adjustable element of the RF circuitry. Output levels of the RF circuitry are measured over the calibration time period. Operational calibration settings for the baseband processing circuitry and analog signal path components of the transmitter are selected based upon the calibration operations.

Abstract translation: 基于无线设备的操作值启动无线设备的发射机校准。 校正操作是在多个校准时间段执行的，每个校准时间段被分成多个第一间隔部分，其分散有多个第二间隔部分，用于多个校准时间段的每个校准时间段，相应的校准设置 被应用。 在第一间隔期间，将基本固定的第一电流输入部分施加到RF电路的至少一个增益可调元件。 在第二间隔部分期间，将变化的电流输入施加到RF电路的至少一个增益可调元件。 在校准时间段内测量RF电路的输出电平。 基于校准操作选择发射机的基带处理电路和模拟信号路径组件的操作校准设置。

公开(公告)号：US08014728B2

公开(公告)日：2011-09-06

申请号：US12431224

申请日：2009-04-28

Applicant: Colin Fraser ,  Arya Reza Behzad

Inventor： Colin Fraser ,  Arya Reza Behzad

IPC: H04B17/00

CPC classification number: H04B17/21

Abstract: Transmitter calibration of a wireless device is initiated based upon an operational value of the wireless device. The calibration operations are performed over a plurality of calibration time periods, each calibration time period divided into a plurality of first interval portions interspersed with a plurality of second interval portions, for each calibration time period of the plurality of calibration time periods, respective calibration settings are applied. During the first interval portions substantially fixed first current input is applied to at least one gain adjustable element of the RF circuitry. During the second interval portions, varying current input is applied to the at least one gain adjustable element of the RF circuitry. Output levels of the RF circuitry are measured over the calibration time period. Operational calibration settings for the baseband processing circuitry and analog signal path components of the transmitter are selected based upon the calibration operations.

Abstract translation: 基于无线设备的操作值启动无线设备的发射机校准。 校正操作是在多个校准时间段执行的，每个校准时间段被分成多个第一间隔部分，其分散有多个第二间隔部分，用于多个校准时间段的每个校准时间段，相应的校准设置 被应用。 在第一间隔期间，将基本固定的第一电流输入部分施加到RF电路的至少一个增益可调元件。 在第二间隔部分期间，将变化的电流输入施加到RF电路的至少一个增益可调元件。 在校准时间段内测量RF电路的输出电平。 基于校准操作选择发射机的基带处理电路和模拟信号路径组件的操作校准设置。

公开(公告)号：US20130287076A1

公开(公告)日：2013-10-31

申请号：US13539175

申请日：2012-06-29

Applicant: Ali Afsahi ,  Utku Seckin ,  Colin Fraser ,  Navid Lashkarian ,  Konrad Kratochwil ,  Arya Reza Behzad ,  Dengwei Fu

Inventor： Ali Afsahi ,  Utku Seckin ,  Colin Fraser ,  Navid Lashkarian ,  Konrad Kratochwil ,  Arya Reza Behzad ,  Dengwei Fu

IPC: H04B15/00 ,  H04L25/49

CPC classification number: H03F1/0222 ,  H03F1/0266 ,  H03F1/223 ,  H03F2200/18

Abstract: Communication processing paths include distortions, such as DC offset in the baseband analog path, local oscillator feed-through distortion, and nonlinearity of gm's and power amplifiers which are calibrated for, separately or in combination. The cascaded DC offset and nonlinear distortions are modeled separately or in combination using even-and-odd order polynomials. A loopback path from the output of one or more distortion causing devices passes through a measurement and calculation module. The calculation module calculates predistortion polynomial's coefficients which will be stored in a look-up table to be used by a baseband predistorter to calibrate the path. The look-up table is stored locally or remotely.

Abstract translation: 通信处理路径包括失真，例如基带模拟路径中的DC偏移，本地振荡器馈通失真以及gm和功率放大器的非线性，其被单独地或组合地校准。 级联DC偏移和非线性失真是单独建模的，或者使用偶数和奇数阶多项式组合。 来自一个或多个引起失真的设备的输出的回送路径通过测量和计算模块。 计算模块计算将被存储在由基带预失真器使用以校准路径的查找表中的预失真多项式系数。 查找表存储在本地或远程。

公开(公告)号：US20080130887A1

公开(公告)日：2008-06-05

申请号：US10592464

申请日：2005-03-10

Applicant: Andrew M. Harvey ,  Colin Fraser

Inventor： Andrew M. Harvey ,  Colin Fraser

IPC: H04K1/00

CPC classification number: H04B10/85

Abstract: A secure data communication system configuration to encrypt the data to be transmitted within the random phase fluctuations of the field spectrum of a low temporal coherence source and to decrypt the data at the receiver through an autocorrelation technique. The optical field encryption technique disclosed herein uses a dual interferometer and has the advantages of being realisable with current technology allowing high data rates and opaqueness to an unwanted observer on the system upon which data is being transferred.

Abstract translation: 一种安全数据通信系统配置，用于对在低时间相干源的场频谱的随机相位波动内发送的数据进行加密，并通过自相关技术对接收机处的数据进行解密。 本文公开的光场加密技术使用双干涉仪，并且具有可利用当前技术实现的优点，允许高数据速率和不正确的数据传输系统上的不期望的观察者。

公开(公告)号：US5652799A

公开(公告)日：1997-07-29

申请号：US635855

申请日：1996-04-22

Applicant: Colin Fraser Ross ,  Andrew John Langley ,  Graham Paul Eatwell

Inventor： Colin Fraser Ross ,  Andrew John Langley ,  Graham Paul Eatwell

IPC: G10K11/178 ,  G10K11/16

CPC classification number: G10K11/1784 ,  G10K2210/108 ,  G10K2210/3027 ,  G10K2210/3032 ,  G10K2210/3042 ,  G10K2210/511

Abstract: An active control system for attenuating tonal noise in a defined region is described. In its most basic form the system includes sensors for generating signals indicative of the residual noise in the region after attenuation and the uncontrolled sound affecting the region, signal processing circuit for processing the generated signals differently depending on the tonal content thereof, an adaptive filter supplied with at least one of the generated signals whose characteristic is controlled by the processing circuitry, a transducer for producing tonal-noise-attenuating disturbance in the region and delay means for delaying signals relating to the uncontrolled noise before or after or during the adaptive filtering. The system finds direct application in a personal headset or ear defender.

Abstract translation: 描述了用于衰减限定区域中的音调噪声的主动控制系统。 在其最基本的形式中，系统包括用于产生指示衰减后区域中的残余噪声的信号的传感器和影响区域的不受控制的声音的信号处理电路，用于根据其音调内容不同地处理所生成的信号，提供自适应滤波器 其特征在于由处理电路控制的产生的信号中的至少一个，用于在该区域中产生音调噪声衰减干扰的传感器，以及用于在自适应滤波之前或期间延迟与不受控噪声相关的信号的延迟装置。 该系统可以直接应用于个人耳机或耳后卫。

公开(公告)号：US20170278504A1

公开(公告)日：2017-09-28

申请号：US15471652

申请日：2017-03-28

Applicant: Colin Fraser ROSS

Inventor： Colin Fraser ROSS

IPC: G10K11/178 ,  B60R13/08

CPC classification number: G10K11/17861 ,  G10K11/17854 ,  G10K11/17857 ,  G10K11/17881 ,  G10K11/17885 ,  G10K2210/128 ,  G10K2210/3026 ,  G10K2210/3027 ,  G10K2210/3028 ,  G10K2210/3219 ,  G10K2210/3221 ,  G10K2210/3224

Abstract: A quiet headspace for the passenger in a vehicle (car/train/bus/aircraft etc.) which comprises a canopy to provide some passive attenuation of the noise coming from the surroundings and within the canopy a noise reduction system comprising, in combination one or more loudspeakers and one or more microphones located close to the passenger's head, and one or more microphones located around the periphery of the canopy.

公开(公告)号：US08437718B2

公开(公告)日：2013-05-07

申请号：US13536467

申请日：2012-06-28

Applicant: Colin Fraser ,  Mark Gonikberg ,  Arya Reza Behzad

Inventor： Colin Fraser ,  Mark Gonikberg ,  Arya Reza Behzad

IPC: H04B17/00

CPC classification number: H04B1/0028 ,  H03F1/3241 ,  H04B1/0475 ,  H04B17/11 ,  H04B2001/0425

Abstract: A wireless device includes an antenna, Radio Frequency (RF) circuitry, and baseband processing circuitry. The baseband processing circuitry couples to the RF circuitry and is operable to determine operational calibrations settings that may include pre-distortion characteristics and RF signal path settings, both of which are determined via calibration operations. The calibration operations are initiated when an operational value of the wireless device compares unfavorably to at least one operational threshold. Monitoring circuitry coupled to the RF circuitry and to the baseband processing circuitry monitors operational characteristics of the RF circuitry. Calibration operations may be initiated based upon RF circuitry temperature, supply voltage, PA current, PA gain input level/average, among other triggers.

Abstract translation: 无线设备包括天线，射频（RF）电路和基带处理电路。 基带处理电路耦合到RF电路，并且可操作以确定可能包括预失真特性和RF信号路径设置的操作校准设置，这两者均通过校准操作确定。 当无线设备的操作值不利于至少一个操作阈值时，启动校准操作。 耦合到RF电路和基带处理电路的监控电路监视RF电路的操作特性。 校准操作可以基于RF电路温度，电源电压，PA电流，PA增益输入电平/平均值等触发。