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公开(公告)号：US07809080B2
公开(公告)日：2010-10-05
申请号：US11617144
申请日：2006-12-28
CPC分类号： H03F1/3247
摘要： An approach for determining corrective predistortion functions includes maintaining a history of recent estimations of a plurality of corrective predistortion functions. Each of those functions corresponds to a respective signal characteristic. By determining a feature of each of those functions from the history, one of the corrective predistortion functions is selected for a next estimation based upon which of the functions has a feature within the history that satisfies a selected criteria. In a disclosed example, the function having the lowest number of estimations within a recent history is selected as the function to have the highest priority for a next estimation.
摘要翻译： 用于确定校正预失真函数的方法包括维持多个校正预失真函数的最近估计的历史。 这些功能中的每一个对应于相应的信号特性。 通过从历史中确定每个功能的特征，基于哪个功能具有满足选定标准的历史中的特征，选择校正预失真函数之一用于下一个估计。 在公开的示例中，选择具有最近历史中的最低估计数的函数作为对下一个估计具有最高优先级的函数。
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公开(公告)号：US07375065B2
公开(公告)日：2008-05-20
申请号：US11019020
申请日：2004-12-21
CPC分类号： C11D17/003 , C11D3/187 , C11D3/2068 , C11D3/2093 , C11D3/30 , C11D3/3749 , C11D3/43 , C11D11/0041
摘要： A composition for cleaning a fluid delivery system includes an agent which controls the rheology of the fluid so that its apparent viscosity decreases as the fluid is subjected to a shear force. In particular applications, the viscosity of the composition is greater than 600 centipoise when it is not subject to any shear and less than 600 centipoise when subject to a shear of at least 10 1/sec. The fluid may be thixotropic or a Bingham plastic, in some instances. In a specific embodiment, the viscosity of the composition is greater than 3000 centipoise when it is not subject to shear, less than 3000 centipoise at a shear of 10 1/sec, less than 1000 centipoise at a shear of 30 1/sec, and less than 600 centipoise at a shear of 60 1/sec. Also disclosed are methods for cleaning a fluid delivery system with these compositions.
摘要翻译： 用于清洁流体输送系统的组合物包括控制流体流变性的试剂，使得其表观粘度随着流体受到剪切力而降低。 在具体应用中，当经受至少10 1 /秒的剪切时，当其不经受任何剪切并且小于600厘泊时，组合物的粘度大于600厘泊。 在某些情况下，流体可能是触变性的或Bingham塑料。 在一个具体实施方案中，组合物的粘度在不经受剪切时大于3000厘泊，在剪切速率为10 1 /秒时小于3000厘泊，剪切速度为30 1 /秒时小于1000厘泊， 在60 1 /秒的剪切下小于600厘泊。 还公开了用这些组合物清洗流体递送系统的方法。
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公开(公告)号：US20050137104A1
公开(公告)日：2005-06-23
申请号：US11019020
申请日：2004-12-21
CPC分类号： C11D17/003 , C11D3/187 , C11D3/2068 , C11D3/2093 , C11D3/30 , C11D3/3749 , C11D3/43 , C11D11/0041
摘要： A composition for cleaning a fluid delivery system includes an agent which controls the rheology of the fluid so that its apparent viscosity decreases as the fluid is subjected to a shear force. In particular applications, the viscosity of the composition is greater than 600 centipoise when it is not subject to any shear and less than 600 centipoise when subject to a shear of at least 10 l/sec. The fluid may be thixotropic or a Bingham plastic, in some instances. In a specific embodiment, the viscosity of the composition is greater than 3000 centipoise when it is not subject to shear, less than 3000 centipoise at a shear of 10 l/sec, less than 1000 centipoise at a shear of 30 l/sec, and less than 600 centipoise at a shear of 60 l/sec. Also disclosed are methods for cleaning a fluid delivery system with these compositions.
摘要翻译： 用于清洁流体输送系统的组合物包括控制流体流变性的试剂，使得其表观粘度随着流体受到剪切力而降低。 在具体应用中，当经受至少10l / sec的剪切时，当其不经受任何剪切并且小于600厘泊时，组合物的粘度大于600厘泊。 在某些情况下，流体可能是触变性的或Bingham塑料。 在一个具体实施方案中，当不经剪切时，组合物的粘度大于3000厘泊，在10l / sec的剪切下小于3000厘泊，在30l / sec的剪切下小于1000厘泊， 在剪切速度为60升/秒时小于600厘泊。 还公开了用这些组合物清洗流体递送系统的方法。
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公开(公告)号：US07627293B2
公开(公告)日：2009-12-01
申请号：US11617113
申请日：2006-12-28
CPC分类号： H03F1/3247
摘要： A corrective predistortion function is applied to a signal to compensate for or cancel out distortion that is introduced by a component that processes the signal. A disclosed example includes applying a corrective predistortion function to a transmitted signal used for wireless communications. A technique for selecting the corrective predistortion function includes determining a current power level of the signal. When the current power level is at or below a lift level between a maximum signal power level and a minimum signal power level, a corrective predistortion function corresponding to the lift level is applied to the signal. When the actual signal power level is above the lift level, a corrective predistortion function corresponding to the actual current power level is applied.
摘要翻译： 校正预失真函数被应用于信号以补偿或消除由处理信号的组件引入的失真。 公开的示例包括对用于无线通信的发送信号应用校正预失真函数。 用于选择校正预失真功能的技术包括确定信号的当前功率电平。 当当前功率电平处于或低于最大信号功率电平和最小信号功率电平之间的电平水平时，对应于电梯电平的校正预失真功能被施加到信号。 当实际信号功率电平高于电梯电平时，应用与实际当前功率电平对应的校正预失真功能。
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公开(公告)号：US06984616B2
公开(公告)日：2006-01-10
申请号：US10276381
申请日：2002-04-24
CPC分类号： C11D7/261 , C09D9/00 , C11D3/43 , C11D7/263 , C11D7/3209 , C11D7/3218 , C11D7/5013
摘要： A purge solution for removing water-based dehydrated paint residues from a paint delivery system includes 2–15 total weight percent of a purge concentrate diluted with solvent. The concentrate includes 20–99.5 total weight percent of a C4 alcohol or an alkoxylated C4 alcohol, and 0.5–30 total weight percent of an amine.
摘要翻译： 用于从涂料输送系统中除去水性脱水漆残留物的清除溶液包括用溶剂稀释的2-15重量％的净化浓缩物。 浓缩物包含20-99.5％C 4 S 4醇或烷氧基化C 4+醇的总重量百分数和0.5-30％总重量的胺。
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公开(公告)号：US06517626B2
公开(公告)日：2003-02-11
申请号：US09927283
申请日：2001-08-10
IPC分类号： B08B300
CPC分类号： C09D7/20
摘要： A universal paint solvent comprises, on a weight basis, 1-30% of an acidic material selected from the group consisting of sulfonic acids, phosphonic acids, phosphoric acids, and combinations thereof; together with 10-80% of an organic solvent selected from the group consisting of alcohols, ethers, ketones, aldehydes, esters, and combinations thereof. In particular compositions, the acidic component is comprised of a mixture of two different acids. Alkyl esters, particularly acetate esters, are preferred organic solvents. Butyl acetate is a specifically preferred solvent. The compositions solvate a large variety of different paint formulations, and are effective at room temperature. The compositions have particular utility for cleaning paint delivery systems and equipment.
摘要翻译： 通用油漆溶剂以重量计包含1-30％的选自磺酸，膦酸，磷酸及其组合的酸性物质; 以及10-80％的选自醇，醚，酮，醛，酯及其组合的有机溶剂。 在特定组合物中，酸性组分由两种不同的酸的混合物组成。 烷基酯，特别是乙酸酯，是优选的有机溶剂。 乙酸丁酯是特别优选的溶剂。 该组合物溶剂化各种不同的油漆配方，并且在室温下是有效的。 该组合物具有用于清洁涂料输送系统和设备的特殊用途。
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7.发明授权Method of and circuit for receiving a sample of an input signal to be used to calculate parameters for a predistortion circuit in an integrated circuit 有权用于接收用于计算集成电路中的预失真电路的参数的输入信号的采样的方法和电路公开(公告)号：US08243852B1
公开(公告)日：2012-08-14
申请号：US12836501
申请日：2010-07-14
申请人： Stephen Summerfield
发明人： Stephen Summerfield
IPC分类号： H04L25/03
CPC分类号： H04L27/368
摘要： A circuit for receiving a sample of an input signal to be used to calculate parameters for a predistortion circuit in an integrated circuit is described. The circuit comprises a power measurement circuit coupled to receive the input signal; a first port of a dual port random access memory for receiving data associated with power of the input signal over a predetermined period of time; and a second port of a dual port random access memory for generating the data associated with the power of the input signal stored over the predetermined period of time. A method of receiving a sample of an input signal to be used to calculate parameters for a predistortion circuit in an integrated circuit is also described.
摘要翻译： 描述用于接收用于计算集成电路中的预失真电路的参数的输入信号的采样的电路。 电路包括耦合以接收输入信号的功率测量电路; 双端口随机存取存储器的第一端口，用于在预定时间段内接收与输入信号的功率相关联的数据; 以及双端口随机存取存储器的第二端口，用于产生与在预定时间段内存储的输入信号的功率相关联的数据。 还描述了接收用于计算集成电路中的预失真电路的参数的输入信号的采样的方法。
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8.发明授权Method of and circuit for accepting a sample of an input signal to be used to calculate parameters for a predistortion circuit in an integrated circut 有权用于接收用于计算集成电路中的预失真电路的参数的输入信号的采样的方法和电路公开(公告)号：US08229025B1
公开(公告)日：2012-07-24
申请号：US12201633
申请日：2008-08-29
申请人： Stephen Summerfield
发明人： Stephen Summerfield
IPC分类号： H04L25/03
CPC分类号： H04L27/368
摘要： A method of accepting a sample of an input signal to be used to calculate parameters for a predistortion circuit in an integrated circuit is disclosed. The method comprises accumulating data associated with an input signal over a period of time; detecting the sample of the input signal at a predetermined time; comparing the sample of the input signal to the accumulated data; and determining whether the sample of the input signal is acceptable to be used to calculate parameters for the predistortion circuit. A circuit for accepting a sample of an input signal to be used to calculate parameters for a predistortion circuit in an integrated circuit is also disclosed.
摘要翻译： 公开了接收用于计算集成电路中的预失真电路的参数的输入信号的采样的方法。 该方法包括在一段时间内累积与输入信号相关联的数据; 在预定时间检测输入信号的样本; 将输入信号的采样与累积数据进行比较; 以及确定所述输入信号的样本是否可接受以用于计算所述预失真电路的参数。 还公开了一种用于接收用于计算集成电路中的预失真电路的参数的输入信号的采样的电路。
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公开(公告)号：US07737779B2
公开(公告)日：2010-06-15
申请号：US12201702
申请日：2008-08-29
IPC分类号： H03F1/26
CPC分类号： H03F1/3247
摘要： An integrated circuit having a circuit for reducing distortion in a power amplifier is disclosed. The integrated circuit comprises a predistortion circuit coupled to receive a signal to be amplified; sample capture buffers coupled to an output of the predistortion circuit and an input/output port of the integrated circuit; and an estimator circuit coupled to the sample capture buffers, wherein the estimator circuit generates parameters for the predistortion circuit based upon the output of the predistortion circuit and an output of the power amplifier received at the input/output port of the integrated circuit. A method of reducing distortion in a power amplifier is also disclosed.
摘要翻译： 公开了一种具有减小功率放大器失真的电路的集成电路。 该集成电路包括耦合以接收待放大信号的预失真电路; 耦合到预失真电路的输出和集成电路的输入/输出端口的采样捕获缓冲器; 以及耦合到采样捕获缓冲器的估计器电路，其中估计器电路基于预失真电路的输出和在集成电路的输入/输出端口接收的功率放大器的输出产生用于预失真电路的参数。 还公开了一种降低功率放大器中的失真的方法。
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公开(公告)号：US6009385A
公开(公告)日：1999-12-28
申请号：US849859
申请日：1997-07-09
申请人： Stephen Summerfield
发明人： Stephen Summerfield
IPC分类号： G10L20060101 , G10L19/00 , G10L19/02 , G10L21/00 , H03G7/00
CPC分类号： G10L19/0216
摘要： A clipped input speech waveform is divided into a plurality of a series of signals by means of a wavelet transform such as the Daubechies wavelet transform, which are then scaled or otherwise processed to reduce the effects of clipping, prior to reconstruction of the speech waveform using the inverse transform.
摘要翻译： PCT No.PCT / GB95 / 02943 Sec。 371日期1997年7月9日第 102（e）日期1997年7月9日PCT 1995年12月15日PCT PCT。 出版物WO89 / 06877 日期1989年7月27日通过小波变换（例如Daubechies小波变换）将剪切输入语音波形分成多个一系列信号，然后在重构之前对其进行缩放或以其他方式处理以减少削波的影响 的使用逆变换的语音波形。
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