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    • 95. 发明申请
    • METHOD FOR USING A NON-INVASIVE CARDIAC AND RESPIRATORY MONITORING SYSTEM
    • 使用非侵入性心脏病和呼吸监测系统的方法
    • US20090048500A1
    • 2009-02-19
    • US11308675
    • 2006-04-20
    • Stephen Bruce Corn
    • Stephen Bruce Corn
    • A61B5/1455
    • A61B5/113A61B5/0059A61B5/024A61B5/1114A61B5/4094A61B5/4848A61B8/08A61B2503/04A61B2503/06G01S15/50G01S15/88G01S17/50G01S17/88
    • A non-invasive monitoring system using radiated energy to identify cardiac and respiratory waveforms in patients is discussed. The monitoring system illuminates a subject in radiated energy and then detects the reflected radiated energy caused by respiratory and/or cardiac functions. The detected reflections are used to plot a two-dimensional waveform. The waveforms represent the rise and fall of a detected signal (the reflected energy) over time and are indicative of the small movements of the patient's chest and abdomen that are associated with cardiac and respiratory function. Different implementations of the monitoring system use laser or ultrasonic energy to capture breathing and cardiac waveforms for analysis. The waveforms may be used to diagnose the effectiveness of prescribed sleep medication, perform remote line of sight monitoring from a remote location, identify crying waveforms for babies and infants, identify cardiac waveforms in a non-invasive manner and identify seizure and tremor activity.
    • 讨论了使用辐射能量来识别患者心脏和呼吸波形的非侵入性监测系统。 监控系统以辐射能量照射被摄体,然后检测由呼吸和/或心脏功能引起的反射辐射能。 检测到的反射用于绘制二维波形。 波形表示随时间的检测信号(反射能)的上升和下降,并且表示与心脏和呼吸功能相关的患者胸部和腹部的小的运动。 监测系统的不同实施方式使用激光或超声能量来捕获呼吸和心脏波形进行分析。 波形可用于诊断规定的睡眠药物的有效性,从远程位置执行远程视线监测,识别婴儿和婴儿的哭泣波形,以非侵入性方式识别心脏波形并识别癫痫发作和震颤活动。
    • 96. 发明申请
    • Underwater sounding apparatus
    • 水下探测仪
    • US20030056592A1
    • 2003-03-27
    • US10234191
    • 2002-09-05
    • Koji TokudaShinji Ishihara
    • G01N029/00
    • G01S7/526G01S15/50G01S15/96Y10S367/904
    • A mixer shifts the center frequency of a received signal to a baseband according to a center frequency detected by a center frequency detector or a center frequency estimated from ship speed, for example, by a center frequency estimator. The passband of a variable passband filter varies according to a bandwidth detected directly from the received signal by a bandwidth detector or a bandwidth estimated from the pulselength of a transmitting signal by a bandwidth estimator, whereby the bandwidth of a baseband signal output from the mixer is limited to remove undesired noise components in the received signal.
    • 混频器根据由中心频率检测器检测的中心频率或由船速估计的中心频率,例如由中心频率估计器将接收信号的中心频率移位到基带。 可变通带滤波器的通带根据由带宽检测器直接从接收信号检测的带宽或由带宽估计器从发送信号的脉冲长度估计的带宽而变化,由此从混频器输出的基带信号的带宽为 限于消除接收信号中的不需要的噪声分量。
    • 97. 发明授权
    • Process for measuring the position of at least one mobile interface
using ultrasound and apparatus for carrying out said process
    • 用于使用超声波测量至少一个移动界面的位置并执行所述处理的装置的过程
    • US5297552A
    • 1994-03-29
    • US941254
    • 1992-09-04
    • Jean-Pierre Mignot
    • Jean-Pierre Mignot
    • A61B8/08G01B17/00G01S15/10G01S15/50A61B8/00
    • G01S15/50A61B8/0858
    • A process for measuring the position of at least one mobile wall using ultrasound and an apparatus for carrying out this process are described.The measuring process of the invention has an initialization phase during which the elemental echoes of an echo signal produced by the reflection of an ultrasonic impulse from mobile interfaces (P.sub.o,1 ; P.sub.o,2 ; P.sub.o,3 ; P.sub.o,4 ;) are processed, to determine the position of these interfaces in this echo signal and in which the temporal positions of the reference points (Z.sub.o,1 ; Z.sub.o,2) of the elemental echoes of a group of echo signals assimilated afterwards, are simultaneously tracked so as to ascertain the position of the interfaces in the most recent of the echo signals of this group, an assimilation phase in which the position of said interfaces is tracked and an organizational or processing stage for the memorized data.The invention has applications in the medical field for measuring the interior diameter and thickness of the wall of a blood vessel as a function of time.
    • 描述了使用超声波测量至少一个移动墙的位置的过程和用于执行该过程的装置。 本发明的测量过程具有初始化阶段,在该初始化阶段期间,处理由移动接口(Po,1; Po,2; Po,3; Po,4;)的超声波脉冲的反射产生的回波信号的元回波被处理 以确定这些接口在该回波信号中的位置,并且其中同时跟踪一组同时被跟踪的一组回波信号的基本回波的参考点(Zo,1; Zo,2)的时间位置,以便 确定接口在该组的最近的回波信号中的位置,其中跟踪所述接口的位置的同化阶段以及用于存储的数据的组织或处理阶段。 本发明在医疗领域中应用于测量血管壁的内径和厚度作为时间的函数。
    • 98. 发明授权
    • Method and device for determining variations in the position of a
movable object by means of ultrasound
    • 用于通过超声波测量可移动物体位置变化的方法和装置
    • US5241515A
    • 1993-08-31
    • US916450
    • 1992-07-17
    • Edwin O. HarmsWillem Prins
    • Edwin O. HarmsWillem Prins
    • A61B5/055A61B5/08A61B5/113A61B8/08G01S15/50
    • A61B8/08A61B5/113G01S15/50
    • Variations in the position of a part of a living object within the measurement space of magnetic resonance apparatus are determined by an ultrasound device in which bursts of ultrasonic waves having a frequency F.sub.US are transmitted towards the object in response to start signals generated to the repetition frequency F.sub.R, and ultrasonic waves reflected by the object are received and an analog echo signal is detected which is converted into a digital echo signal made up of a sequence of echo pulses having a repetition frequency F.sub.US. The device includes a controller for generating a time-window, for determining whether a predetermined edge of an echo pulse occurs within the time-window, and for setting the time for generating the next time-window at 1/F.sub.R -1/2F.sub.US after an echo pulse has occurred within the time-window. In order to automatically generate a next time-window even in the absence of an echo pulse received in the previous time-window, an estimating circuit provides an estimated value for the time for generating the next time-window, which estimating circuit includes an envelope detector and a level detector for determining the time t.sub.L when the level of the envelope of the analog echo signal exceeds a predetermined level. The time for generating the next time-window is set at 1/F.sub.R -1/2F.sub.US after the time t.sub.L if no echo pulse has occurred within the time-window.
    • 99. 发明授权
    • Method of counting the number of passers-by
    • 计算路人人数的方法
    • US5187688A
    • 1993-02-16
    • US864459
    • 1992-04-06
    • Makoto Saruta
    • Makoto Saruta
    • G01S15/52G01S15/04G01S15/50G01S15/87G01S15/88G06M7/00G07C9/00
    • G07C9/00G01S15/50G01S15/87
    • A passage is periodically scanned by a plurality of ultrasonic transmitters/receivers (sensors) arranged on the ceiling of the passage in two lines to calculate the height of an object to be measured to each sensor and the presence or absence of the measured object(s), moving direction(s) thereof, and the number thereof are reckoned from changes in sensed height and sensing time for each sensor induced by passing an object to be measured through the passage, and the position and a change in position with time of each sensor which senses the measured object concerned to count the number of passers-by in each moving direction. The presence or absence of the object to be measured and the number to be counted are decided in accordance with changes in sensed position and sensed height and the interrelation thereof, so that the number of sensors can be reduced and the number of passers-by can be counted at a high accuracy even when a plurality of persons pass under the sensors in a group.
    • 由通过两条线路布置在通道的天花板上的多个超声波发射器/接收器(传感器)周期性地扫描通道,以计算要测量的物体的高度到每个传感器以及被测物体的存在或不存在 ),其移动方向及其数量来自于通过通过通过通过待测量物体而引起的每个传感器的感测高度和感测时间的变化,以及每个传感器的位置和位置随时间的变化 感测所测量的物体以计算每个移动方向上的路人数。 要测量的对象的存在或不存在以及要被计数的数量根据感测到的位置和感测高度的变化及其相互关系来确定,使得可以减少传感器的数量并且路人的数量 即使当多个人通过组中的传感器下方时,也可以高精度地计数。
    • 100. 发明授权
    • Ultrasound time domain velocity detection method and apparatus
    • 超声时域速度检测方法及装置
    • US5109857A
    • 1992-05-05
    • US664021
    • 1991-03-04
    • David N. RoundhillOlaf T. von Ramm
    • David N. RoundhillOlaf T. von Ramm
    • A61B8/06G01S15/50
    • A61B8/06G01S15/50
    • Disclosed is an ultrasonic method of measuring the movement of a particle in a test region. The method comprises processing a modulated signal returned from the test region to detect a first range of feature data and then processing a modulated signal returned from the test region to detect a second range of feature data. The second range of feature data is then compared to the first range of feature data to determine the positional displacement between at least one feature in the second range of feature data and the closest adjacent feature in the first range of feature data. The positional displacement indicates the movement of a particle in the test region. Also disclosed is an apparatus for carrying out the foregoing method.
    • 公开了一种测量测试区域中的颗粒运动的超声波方法。 该方法包括处理从测试区域返回的调制信号,以检测特征数据的第一范围,然后处理从测试区域返回的调制信号,以检测特征数据的第二范围。 然后将特征数据的第二范围与特征数据的第一范围进行比较,以确定特征数据的第二范围中的至少一个特征与第一特征数据范围中最接近的相邻特征之间的位置位移。 位置偏移表示粒子在测试区域中的运动。 还公开了一种用于执行上述方法的装置。