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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: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:US07801245B2
公开(公告)日:2010-09-21
申请号:US11617133
申请日:2006-12-28
CPC分类号: H04L25/03343
摘要: Determining a predistortion function includes sampling a signal to obtain a plurality of capture sets within a single sampling window. Each of the capture sets is analyzed to determine whether it satisfies preselected criteria. Example criteria include desired characteristics of a capture set average power, capture set peak power and a number of peaks within a capture set. If any capture set within the sampling window satisfies all of the preselected criteria and has the highest number of peaks, that capture set will be used for determining a predistortion function. A multiple capture set selection module applies the preselected criteria for selecting an appropriate capture set for determining the predistortion function. The predistortion function is used for applying predistortion to a signal before that signal is processed by a distorting component that introduces distortion so that the predistortion can compensate for or cancel out such distortion.
摘要翻译: 确定预失真功能包括对信号进行采样以在单个采样窗口内获得多个捕获集合。 分析每个捕获组以确定其是否满足预选标准。 示例标准包括捕获设置平均功率的所需特性,捕获设置峰值功率和捕获集合内的峰值数量。 如果采样窗口内的任何捕获设置满足所有预先选择的标准并且具有最高峰值,则捕获集合将被用于确定预失真函数。 多重捕获集合选择模块应用用于选择用于确定预失真函数的适当捕获集合的预选标准。 预失真函数用于在信号由引入失真的失真分量处理信号之前对信号进行预失真,以便预失真可以补偿或消除这种失真。
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公开(公告)号:US20080157870A1
公开(公告)日:2008-07-03
申请号:US11617144
申请日:2006-12-28
IPC分类号: H03F1/26
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:US20080157819A1
公开(公告)日:2008-07-03
申请号:US11617133
申请日:2006-12-28
IPC分类号: H03K9/00
CPC分类号: H04L25/03343
摘要: Determining a predistortion function includes sampling a signal to obtain a plurality of capture sets within a single sampling window. Each of the capture sets is analyzed to determine whether it satisfies preselected criteria. Example criteria include desired characteristics of a capture set average power, capture set peak power and a number of peaks within a capture set. If any capture set within the sampling window satisfies all of the preselected criteria and has the highest number of peaks, that capture set will be used for determining a predistortion function. A multiple capture set selection module applies the preselected criteria for selecting an appropriate capture set for determining the predistortion function. The predistortion function is used for applying predistortion to a signal before that signal is processed by a distorting component that introduces distortion so that the predistortion can compensate for or cancel out such distortion.
摘要翻译: 确定预失真功能包括对信号进行采样以在单个采样窗口内获得多个捕获集合。 分析每个捕获组以确定其是否满足预选标准。 示例标准包括捕获设置平均功率的所需特性,捕获设置峰值功率和捕获集合内的峰值数量。 如果采样窗口内的任何捕获设置满足所有预先选择的标准并且具有最高峰值,则捕获集合将被用于确定预失真函数。 多重捕获集合选择模块应用用于选择用于确定预失真函数的适当捕获集合的预选标准。 预失真函数用于在信号由引入失真的失真分量处理信号之前对信号进行预失真,以便预失真可以补偿或消除这种失真。
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公开(公告)号:US20080157869A1
公开(公告)日:2008-07-03
申请号:US11617113
申请日:2006-12-28
IPC分类号: H03F1/26
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: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: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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