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公开(公告)号：US20050085194A1
公开(公告)日：2005-04-21
申请号：US10689296
申请日：2003-10-20
申请人： Ian Robinson , Jack Macek , Frank Winter
发明人： Ian Robinson , Jack Macek , Frank Winter
CPC分类号： H03M3/50 , H03M7/3017 , H03M7/3024
摘要： Systems and methods are provided for providing high dynamic range operation over a variable range of frequencies. A delta-sigma modulator, having associated frequency characteristics, produces a digital output signal. A digital-to-analog converter converts the digital output signal into an analog signal. A clock circuit provides a clock signal to the delta-sigma modulator and the digital-to-analog converter. A frequency control controls one or more of the clock circuit, the delta-sigma modulator, and the digital-to-analog converter to alter the frequency characteristics of the delta-sigma modulator. A filter circuit can provide one or more passbands to one or more downstream amplifiers ensuring that out of band quantization noise is removed before amplification.
摘要翻译： 提供了用于在可变频率范围内提供高动态范围操作的系统和方法。 具有相关频率特性的Δ-Σ调制器产生数字输出信号。 数模转换器将数字输出信号转换为模拟信号。 时钟电路向Δ-Σ调制器和数模转换器提供时钟信号。 频率控制控制时钟电路，Δ-Σ调制器和数 - 模转换器中的一个或多个以改变Δ-Σ调制器的频率特性。 滤波器电路可以向一个或多个下游放大器提供一个或多个通带，确保在放大之前去除带外量化噪声。
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公开(公告)号：US20090245226A1
公开(公告)日：2009-10-01
申请号：US12480303
申请日：2009-06-08
申请人： Ian Robinson , Frank Winter
发明人： Ian Robinson , Frank Winter
CPC分类号： H04L27/366 , H04L1/08 , H04L27/2614
摘要： A communication system and method is provided that modifies a signal for transmission at a transmitter to reduce peaks associated with the signal. The signal can be modified employing signal shaping, signal clipping, signal decomposition or other techniques to remove peaks associated with the signal. The communication system can also correct the modified signal at a receiver to reconstruct the originally wanted signal.
摘要翻译： 提供了一种通信系统和方法，其修改用于在发射机发射的信号以减少与该信号相关联的峰值。 可以使用信号整形，信号削波，信号分解或其它技术来修改信号以消除与信号相关联的峰值。 通信系统还可以在接收机处校正修改的信号，以重建原本想要的信号。
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公开(公告)号：US07542505B2
公开(公告)日：2009-06-02
申请号：US10689275
申请日：2003-10-20
申请人： Ian Robinson , Frank Winter
发明人： Ian Robinson , Frank Winter
IPC分类号： H04B1/00
摘要： Systems and methods for signal conversion are provided. Signals are spread in a continuous spectrum by a spread spectrum signal, such as a direct sequence spread spectrum (DS-SS) signal. The signals are then processed, which may include but is not limited to analog-to-digital conversion, digital-to-analog conversion, frequency conversion, clipping, filtering or a plurality of processes. The processed signal is then despread using substantially the same spreading signal that was used to spread the signal.
摘要翻译： 提供了信号转换的系统和方法。 信号通过扩频信号（例如直接序列扩频（DS-SS）信号）在连续频谱中扩展。 然后处理信号，其可以包括但不限于模数转换，数模转换，频率转换，限幅，滤波或多个处理。 然后使用用于扩展信号的基本上相同的扩展信号对经处理的信号进行解扩。
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公开(公告)号：US07026868B2
公开(公告)日：2006-04-11
申请号：US10717695
申请日：2003-11-20
申请人： Ian Robinson , Frank Winter
发明人： Ian Robinson , Frank Winter
CPC分类号： H03F1/0227 , H03F1/3294 , H03F2200/102 , H03F2200/331
摘要： Systems and methods are provided for determining and providing an appropriate variable voltage supply to a power amplifier. A power amplifier is operative to amplify an input signal. A digital buffer stores a copy of the input signal representing a predetermined interval of time. An envelope profiler analyzes the buffered interval of the input signal and determines an appropriate supply signal profile for the power amplifier over the predetermined time interval. A supply control provides a supply signal according to the determined profile.
摘要翻译： 提供了系统和方法，用于确定并向功率放大器提供适当的可变电压电源。 功率放大器用于放大输入信号。 数字缓冲器存储表示预定时间间隔的输入信号的副本。 信封分析仪分析输入信号的缓冲间隔，并在预定时间间隔内为功率放大器确定适当的电源信号曲线。 电源控制根据确定的配置文件提供电源信号。
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公开(公告)号：US06963297B2
公开(公告)日：2005-11-08
申请号：US10706723
申请日：2003-11-12
申请人： Ian Robinson , Frank Winter
发明人： Ian Robinson , Frank Winter
CPC分类号： H03F3/24 , H03F2200/331 , H03M3/50 , H04B2001/0408
摘要： Systems and methods are provided for converting a digital signal into an analog signal. A digital-to-analog converter assembly comprises a delta-sigma modulator, a digital-to-analog converter, an analog filter, and a comb filter. The delta-sigma modulator processes a digital input signal to produce a digital output signal having at least one associated high dynamic range frequency band. The digital-to-analog converter converts the digital output signal into an analog output signal having at least one associated high dynamic range frequency band. The associated high dynamic range bands have respective frequency characteristics. An analog filter assembly filters the analog signal. The analog filter has at least one passband. A comb filter assembly attenuates the analog signal output of the filter assembly to improve signal to noise ratio.
摘要翻译： 提供了将数字信号转换为模拟信号的系统和方法。 数模转换器组件包括Δ-Σ调制器，数 - 模转换器，模拟滤波器和梳状滤波器。 Δ-Σ调制器处理数字输入信号以产生具有至少一个相关联的高动态范围频带的数字输出信号。 数模转换器将数字输出信号转换为具有至少一个相关联的高动态范围频带的模拟输出信号。 相关联的高动态范围带具有相应的频率特性。 模拟滤波器组件对模拟信号进行滤波。 模拟滤波器至少有一个通带。 梳状滤波器组件衰减滤波器组件的模拟信号输出以提高信噪比。
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公开(公告)号：US07580476B2
公开(公告)日：2009-08-25
申请号：US10606721
申请日：2003-06-26
申请人： Ian Robinson , Frank Winter
发明人： Ian Robinson , Frank Winter
IPC分类号： H04L25/49
CPC分类号： H04L27/366 , H04L1/08 , H04L27/2614
摘要： A communication system and method is provided that modifies a signal for transmission at a transmitter to reduce peaks associated with the signal. The signal can be modified employing signal shaping, signal clipping, signal decomposition or other techniques to remove peaks associated with the signal. The communication system can also correct the modified signal at a receiver to reconstruct the originally wanted signal.
摘要翻译： 提供了一种通信系统和方法，其修改用于在发射机发射的信号以减少与该信号相关联的峰值。 可以使用信号整形，信号削波，信号分解或其它技术来修改信号以消除与信号相关联的峰值。 通信系统还可以在接收机处校正修改的信号，以重建原本想要的信号。
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公开(公告)号：US06987417B2
公开(公告)日：2006-01-17
申请号：US10606093
申请日：2003-06-24
申请人： Frank Winter , Ian Robinson , Walter DeMore
发明人： Frank Winter , Ian Robinson , Walter DeMore
IPC分类号： H03F3/38
CPC分类号： H03F1/3241 , H03F1/02 , H03F1/0222 , H03F1/025 , H03F3/24 , H03F2200/331 , H04B1/406 , H04B2001/045
摘要： An amplifier system is provided that switches between operation in a polar mode and a linear mode based on a characteristic of an input signal relative to a threshold level. The system operates as a polar amplifier in the polar mode, and as a linear amplifier in the linear mode. A mode selector controls whether polar components of the input signal are sent to a power amplifier or whether a composite signal is amplified.
摘要翻译： 提供一种放大器系统，其基于相对于阈值电平的输入信号的特性，在极坐标模式和线性模式的操作之间进行切换。 该系统在极坐标模式下作为极性放大器工作，并以线性模式作为线性放大器工作。 模式选择器控制输入信号的极性分量是发送到功率放大器还是复合信号被放大。
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公开(公告)号：US06982593B2
公开(公告)日：2006-01-03
申请号：US10691987
申请日：2003-10-23
申请人： Ian Robinson , Frank Winter
发明人： Ian Robinson , Frank Winter
CPC分类号： H03F3/217 , H03F1/0227 , H03F1/0288 , H03F2200/331
摘要： A supply voltage and/or bias of a switching amplifier is modified based on at least one characteristic of the input signal relative to a threshold level. A binary waveform converter converts the input signal into a binary waveform for inputting into the switching amplifier. The switching amplifier amplifies the input signal, while the supply voltage and/or bias is modified in response to changes of the at least one characteristic of the input signal.
摘要翻译： 基于相对于阈值电平的输入信号的至少一个特性来修改开关放大器的电源电压和/或偏置。 二进制波形转换器将输入信号转换成用于输入到开关放大器的二进制波形。 开关放大器放大输入信号，同时响应于输入信号的至少一个特性的变化来修改电源电压和/或偏置。
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公开(公告)号：US20050110568A1
公开(公告)日：2005-05-26
申请号：US10719514
申请日：2003-11-21
申请人： Ian Robinson , Frank Winter
发明人： Ian Robinson , Frank Winter
CPC分类号： H03F1/0277 , H03F1/02 , H03F1/0222 , H03F1/025 , H03F1/0288 , H03F1/3223 , H03F1/3241 , H03F1/3247 , H03F3/217 , H03F3/72 , H03F2200/331
摘要： An amplifier system is provided that switches between operation in a polar mode and a signal restoration mode based on a characteristic of an input signal relative to a threshold level. The system includes a correction path that mitigates distortion and out-of-band (OOB) emissions in the polar mode and provides at least a substantial portion of the amplified output signal in the signal restoration.
摘要翻译： 提供了一种放大器系统，其基于相对于阈值电平的输入信号的特性，在极坐标模式和信号恢复模式之间进行切换。 该系统包括校正路径，其减轻极性模式中的失真和带外（OOB）发射，并且在信号恢复中提供至少大部分放大的输出信号。
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公开(公告)号：US08345796B2
公开(公告)日：2013-01-01
申请号：US12480303
申请日：2009-06-08
申请人： Ian Robinson , Frank Winter
发明人： Ian Robinson , Frank Winter
IPC分类号： H04L27/00
CPC分类号： H04L27/366 , H04L1/08 , H04L27/2614
摘要： A communication system and method is provided that modifies a signal for transmission at a transmitter to reduce peaks associated with the signal. The signal can be modified employing signal shaping, signal clipping, signal decomposition or other techniques to remove peaks associated with the signal. The communication system can also correct the modified signal at a receiver to reconstruct the originally wanted signal.
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