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    • 1. 发明授权
    • System and method of multi-channel signal calibration
    • 多声道信号校准系统及方法
    • US07796068B2
    • 2010-09-14
    • US12218619
    • 2008-07-16
    • Gil M. RazJeffrey H. Jackson
    • Gil M. RazJeffrey H. Jackson
    • H03M1/10
    • H03M1/1033H03M1/1215
    • A signal processing system for reducing calibration-related distortions in a complete-channel signal generated by a multi-channel subsystem, such as an interleaved ADC, includes a channel separator for separating the distorted digital signal into its various sub-channels and a single-channel corrector for independently processing each sub-channel to reduce distortion products present therein. The system additionally includes a subchannel re-combiner for combining the plurality of sub-channels processed by the single-channel corrector and a multi-channel corrector for calibrating each of plurality of sub-channels relative to one another to yield an equalized, complete-channel output signal. The multi-channel corrector includes a bank of optimized filters, each filter being assigned to a corresponding sub-channel of the complete-channel signal. In one embodiment, one of the plurality of sub-channels is selected as an ideal reference signal and the filters assigned to the remaining sub-channels are optimized to yield outputs which match the ideal reference signal.
    • 用于减少由诸如交错ADC的多通道子系统产生的完整信道信号中的校准相关失真的信号处理系统包括用于将失真的数字信号分离成其各个子信道的信道分离器, 信道校正器,用于独立地处理每个子信道以减少其中存在的失真产物。 该系统还包括用于组合由单通道校正器处理的多个子通道的子通道重组器和用于相对于彼此校准多个子通道中的每一个的多通道校正器,以产生均衡的,完整的, 通道输出信号。 多通道校正器包括一组优化的滤波器,每个滤波器被分配给完整通道信号的相应子通道。 在一个实施例中,多个子信道之一被选择为理想参考信号,并且分配给剩余子信道的滤波器被优化以产生与理想参考信号匹配的输出。
    • 2. 发明授权
    • Apparatus and method for predicting cardiac arrhythmia by detection of
micropotentials and analysis of all ECG segments and intervals
    • 通过检测微量元素和分析所有ECG片段和间隔来预测心律失常的装置和方法
    • US5609158A
    • 1997-03-11
    • US431992
    • 1995-05-01
    • Eric K. Y. Chan
    • Eric K. Y. Chan
    • A61B5/04A61B5/0452A61B5/0464G06F17/00A61B5/0468
    • A61B5/0464A61B5/7253A61B5/0452A61B5/7239A61B5/7257
    • An apparatus and method for the acquisition and analysis of electrocardiogram signals, to non-invasively detect and quantify presence of abnormal cardiac conduction patterns in patients at risk of heart disease, e.g. ventricular tachycardia; atrial fibrillation and flutter. Signals from the orthogonal X, Y and Z surface leads are amplified, digitized and either stored for later processing, or processed immediately. The incoming beats can either be R wave-triggered, aligned and ensemble-averaged for studies of patients at risk for ventricular pathologies such as ventricular tachycardia, or P wave-triggered, aligned and ensemble-averaged for studies of patients at risk for atrial pathologies, e.g. atrial fibrillation and flutter. QRS onset and offset, and P wave onset and offset, are calculated for ventricular and atrial post-analysis applications, respectively. The windowed Fourier transform of the second derivative (acceleration) of the signal-averaged ECG is calculated for particular regions of interest for each lead, including the intra-QRS, ST-segment, T and P wave regions. A novel Spectral Change Index, calculated from the resulting "acceleration spectrum" for each lead as well as the composite (X+Y+Z) lead, serves to quantify the degree of spectral "fragmentation" within a prespecified bandwidth. It thereby provides a quantitative index to help stratify patients at risk for potentially lethal cardiac (atrial and ventricular) pathologies.
    • 一种用于获取和分析心电图信号的装置和方法,以非侵入性检测和量化心脏病风险患者的异常心脏传导模式的存在,例如, 室性心动过速; 心房颤动和扑动。 来自正交X,Y和Z表面引线的信号被放大,数字化并存储以供稍后处理或立即处理。 进入的搏动可以是R波触发,对齐和合并平均,用于研究患有心室病变风险的患者,如室性心动过速或P波触发,对齐和合并平均用于研究患有心房病变风险的患者 ,例如 心房颤动和扑动。 QRS起始和偏移以及P波起始和偏移分别计算用于心室和心房后分析应用。 对于包括QRS内,ST段,T和P波区域的每个引线的特定感兴趣区域,计算信号平均ECG的二阶导数(加速度)的加窗傅立叶变换。 从每个引线以及复合(X + Y + Z)引线的结果“加速度谱”计算出的新型光谱变化指数用于量化预定带宽内的光谱“碎裂”程度。 因此,它提供了一个定量指标,以帮助分层患有潜在致死性心脏(心房和心室)病理风险的患者。
    • 3. 发明授权
    • Pivot trainer for golfers
    • 高尔夫球手的枢纽教练
    • US5092601A
    • 1992-03-03
    • US682569
    • 1991-04-09
    • John F. Rilling
    • John F. Rilling
    • A63B24/00A63B69/36
    • A63B69/3608A63B2071/0625A63B2220/40A63B2220/801
    • A pivot trainer useful in learning a proper golf swing pivot comprises an electronic circuit having a unique transducer. The pivot trainer is designed to be worn by the golfer in proximity to his hips, because the pivot trainer monitors effective hip movement. The transducer comprises an electrically conducting movable element. The transducer translates about the electrically conducting movable element, which is held stationary within the transducer under the influence of inertial forces generated by golfer hip rotation. If the hips are properly rotated, and the golfer pivots properly, a variable element contacts a movable element, completing the circuit, causing a feedback signal to issue therefrom. The variable element can be positioned in a plurality of positions within the transducer, thus changing the amount of inertia needed to complete the circuit. This allows the golfer to progress from his currently employed swing to a more effective golf swing.
    • 用于学习适当的高尔夫挥杆枢轴的枢轴训练器包括具有唯一换能器的电子电路。 枢纽训练师设计为由高尔夫球手靠近他的臀部穿戴,因为枢纽训练师监测有效的髋关节运动。 换能器包括导电可移动元件。 传感器绕导电可移动元件进行平移,导电可移动元件在高尔夫球杆髋关节旋转产生的惯性力的影响下保持在换能器内。 如果臀部正确旋转,并且高尔夫球手正确地枢转,则可变元件接触可移动元件,完成电路,从而引起反馈信号。 可变元件可以定位在换能器内的多个位置中,从而改变完成电路所需的惯性量。 这样可以让高尔夫球手从目前的职业生涯中摆脱更高效的高尔夫挥杆。
    • 4. 发明授权
    • Method and apparatus for cleaning film
    • 薄膜清洗方法及装置
    • US4244078A
    • 1981-01-13
    • US33729
    • 1979-04-26
    • Richard J. HughesHoward Bowen
    • Richard J. HughesHoward Bowen
    • B01D53/44B01D53/74B08B3/08G03C11/06G03D3/00G03D15/00G11B23/50A47L5/38
    • G11B23/502G03C11/06G03D15/00
    • An apparatus for ultra-sonically cleaning any information bearing material, web, sheet, fiche, film or similar strip material is operable in two modes. The first mode is directed to cleaning the film, and employs a pair of air nozzles for nonevaporatively stripping cleaning solvent from the surface of the film, after the film has been immersed in the solvent. The action of the air nozzles creates a mist of solvent about the nozzles, which is condensed by a plurality of cooling coils and collected, and circulates same through a purification system and returns the solvent to the cleaning tank for subsequent reuse in the film cleaning mode of operation. The air emerging from the nozzles is returned to the air compressor, thereby forming a closed loop compressor system which minimizes escape of solvent vapors into the atmosphere. After a period of use in the film cleaning mode of operation, a second solvent reclaiming mode of operation drains the contaminated solvent from the cleaning tank, and circulates same through a purification system and returns the solvent to the cleaning tank for subsequent reuse in the film cleaning mode of operation. Both modes use the same cooling coils and purification system.
    • 用于超声波清洁任何信息轴承材料,幅材,片材,胶合片,胶片或类似条带材料的装置可在两种模式中操作。 第一种模式是针对薄膜进行清洗,并且在薄膜浸入溶剂中之后,使用一对空气喷嘴从膜的表面非蒸发地除去清洗溶剂。 空气喷嘴的作用在喷嘴周围产生溶剂雾,该烟雾被多个冷却盘管冷凝并收集,并使其循环通过净化系统并将溶剂返回到清洗槽中,以便随后在膜清洗模式中重复使用 的操作。 从喷嘴出来的空气返回到空气压缩机,从而形成一个闭环压缩机系统,其最大限度地减少了溶剂蒸汽逸出到大气中。 在膜清洗操作模式下使用一段时间后,第二溶剂回收操作模式将污染的溶剂从清洗槽中排出,并使其循环通过净化系统,并将溶剂返回到清洗槽中,以便随后在膜中重新使用 清洁操作模式。 两种模式都使用相同的冷却盘管和净化系统。
    • 6. 发明授权
    • Ultrasonic film cleaning apparatus
    • 超声波清洗设备
    • US4138757A
    • 1979-02-13
    • US888195
    • 1978-03-20
    • David HendersonDavid B. Digel
    • David HendersonDavid B. Digel
    • B08B3/12B65H23/00G03B21/00G03D15/00B08B11/00
    • B08B3/123G03D15/00
    • An ultrasonic liquid film cleaning device having means for moving a film strip at high speeds between a pair of oppositely moving cleaning strips. The cleaning strips and the film are positioned for movement between a pair of beds which act as guides and compression surfaces for the sandwiched assembly of cleaning strips and film. Cleaning fluid is piped to the bed to wet the cleaning strips and thereby assist in the cleaning action. An ultrasonic device is mounted in each bed to activate the fluid which is absorbed by the cleaning strips. This activation of the fluid increases the cleaning power of the strips as they pass against the film.
    • 一种超声波液膜清洁装置,具有用于在一对相对移动的清洁条之间高速移动胶片条的装置。 清洁条和膜定位成在一对床之间移动,这对床用作导向件和用于夹持的清洁带和膜的组件的压缩表面。 将清洁液管道输送到床上以润湿清洁带,从而有助于清洁动作。 超声波装置安装在每个床中以激活被清洁带吸收的流体。 流体的这种激活增加了条带穿过薄膜时的清洁力。
    • 7. 发明授权
    • Gas detector
    • 气体探测器
    • US4059356A
    • 1977-11-22
    • US714115
    • 1976-08-13
    • Paul L. Kebabian
    • Paul L. Kebabian
    • G01N21/39G01N33/00H01S3/098G01N21/22
    • H01S3/08022G01N21/39G01N33/0027H01S3/0809H01S3/1061
    • A methane detector comprising a He-Ne laser in which the plasma tube forms a portion of the resonant cavity and the laser can be stimulated to emit at two different atomic resonances at separate wave numbers .nu..sub.1 and .nu..sub.2, one of which is more strongly absorbed by methane than the other. Means such as a beam splitter disposed in the resonant cavity, are provided for directing two beams outwardly from the cavity to a pair of detectors each provided in the path of a respective beam. The cavity is tuned so that its length L meets the criterion m/2L = .nu..sub.1 -.nu..sub.2, m being a number of half integers. Means are provided for cyclically varying the gain of the laser across one free spectral range through some tuned center value.
    • 一种甲烷检测器,包括He-Ne激光器,其中等离子体管形成谐振腔的一部分,激光器可以被激励以分开的波数nu 1和nu 2以两个不同的原子共振发射,其中一个更强 被甲烷所吸收。 设置诸如设置在谐振腔中的分束器的装置被提供用于将两个光束从空腔向外指向一对检测器,每个检测器设置在各个光束的路径中。 谐振腔的长度L满足标准m / 2L = nu 1- nu 2,m为半数整数。 提供了用于通过一些调谐中心值在一个自由光谱范围周期性地改变激光器的增益的装置。
    • 9. 发明授权
    • Method and system of nonlinear signal processing
    • 非线性信号处理方法与系统
    • US07609759B2
    • 2009-10-27
    • US11280970
    • 2005-11-16
    • Gil M. RazCy P. Chan
    • Gil M. RazCy P. Chan
    • H03H7/30H03H7/40H03K5/159
    • H03F1/3229H03F2200/372H03H17/0261H03H17/0294H03H21/0016
    • A nonlinear equalizer for treating the nonlinear component of a distorted digital signal includes a first processing unit adapted to receive the distorted digital signal and yield an appropriate output signal in response thereto, a second processing unit adapted to receive the distorted digital signal and yield an appropriate output signal in response thereto, and a summation module for summing together the output signals from the first and second processing units so as to yield an equalized digital signal. In one embodiment, each of the first and second processing units comprises a linear filter, a partitioning filterbank for partitioning the distorted digital signal, and a multiplier for multiplying together the output of said linear filter with the output of said partitioning filterbank. In use, the nonlinear equalizer can be used to adaptively partition the distorted digital signal so as to allow for nonlinear equalization in a highly efficient manner. Prior to its use in this manner, the coefficient of each linear filter is optimized through the injection of multiple sets of test tones into the nonlinear system.
    • 用于处理失真数字信号的非线性分量的非线性均衡器包括:第一处理单元,适于接收失真的数字信号并响应于此产生适当的输出信号;第二处理单元,适于接收失真的数字信号并产生适当的 输出信号和用于将来自第一和第二处理单元的输出信号相加的求和模块,以产生均衡的数字信号。 在一个实施例中,第一和第二处理单元中的每一个包括线性滤波器,用于分割失真数字信号的分频滤波器组,以及用于将所述线性滤波器的输出与所述分区滤波器组的输出相乘的乘法器。 在使用中,非线性均衡器可用于自适应地分割失真的数字信号,以便以高效的方式实现非线性均衡。 在以这种方式使用之前,通过将多组测试音调入非线性系统来优化每个线性滤波器的系数。