Locating system and method for determining positions of objects
    71.
    发明授权
    Locating system and method for determining positions of objects 有权
    用于确定物体位置的定位系统和方法

    公开(公告)号:US06946956B2

    公开(公告)日:2005-09-20

    申请号:US10207021

    申请日:2002-07-30

    CPC classification number: F41G3/2633 G01S11/06 G01S11/12 G01S11/14

    Abstract: A locating system for determining a position of an object comprises a transmitting station that transmits a first ID signal containing a first identifier of this transmitting station; a receiving station that receives the first ID signal, measures the intensity of the first ID signal, and extracts the first identifier; a data management unit that stores and manages the intensity in association with the first identifier, the intensity and the identifier being supplied from the receiving station; and a positioning computer that estimates the position of the transmitting station using a first correcting formula defining a relation between the intensity and the distance, based on the data stored in the data management unit.

    Abstract translation: 用于确定对象的位置的定位系统包括发送站,其发送包含该发送站的第一标识符的第一ID信号; 接收所述第一ID信号的接收站,测量所述第一ID信号的强度,并提取所述第一标识符; 数据管理单元,其与所述第一标识符相关联地存储和管理所述强度,所述强度和所述标识符从所述接收站提供; 以及定位计算机,其基于存储在数据管理单元中的数据,使用定义强度和距离之间的关系的第一校正公式来估计发送站的位置。

    Process for detecting mobiles objects by means of passive underwater buoys
    72.
    发明授权
    Process for detecting mobiles objects by means of passive underwater buoys 失效
    通过被动水下浮标检测手机对象的过程

    公开(公告)号:US06937539B2

    公开(公告)日:2005-08-30

    申请号:US10467799

    申请日:2002-02-05

    CPC classification number: G01S5/18 G01S11/14

    Abstract: The invention is a process relating to the processing of the signals sent by passive buoys dropped from an aircraft so as to compile EGP (Energy Geographic Plot) maps. The process is split into three steps: the first makes it possible to produce an EGP map of the x,y positions of the noise sources, the second makes it possible to associate the velocities Vx,Vy with certain designated positions and the third makes it possible to eliminate the noise sources regarded as hampering the readability of the maps.

    Abstract translation: 本发明涉及处理从飞行器掉落的被动浮标发送的信号,以编译EGP(能量地理图)图。 该过程分为三个步骤:第一步使得可以产生噪声源的x,y位置的EGP图,第二个使得可以将速度V X,V, SUB> y ,而第三个可以消除被认为妨碍地图的可读性的噪声源。

    Systems and processing algorithms for ultrasound time-of-flight
digitizer systems
    73.
    发明授权
    Systems and processing algorithms for ultrasound time-of-flight digitizer systems 有权
    用于超声飞行时间数字化仪系统的系统和处理算法

    公开(公告)号:US6151014A

    公开(公告)日:2000-11-21

    申请号:US288058

    申请日:1999-04-07

    CPC classification number: G01S11/14 G01S15/101 G01S15/87 G01S7/52004

    Abstract: A method and corresponding system for tracking variations in distance D calculated from time-of-flight measurements of a sequence of pulses of a pressure wave oscillation from a transmitter to a receiver identifies a state of synchronous operation by obtaining at least two time-of-flight measurements derived from successive pressure wave pulses which satisfy given synchronicity criteria. Successive time-of-flight measurements are then monitored to identify a shifted time-of-flight measurement which varies by at least half of the wave period from a predicted time-of-flight value calculated from a number of preceding time-of-flight measurements. A shift factor is then identified corresponding to an integer multiple of the wave period by which the shifted time-of-flight measurement must be corrected to obtain a corrected time-of-flight measurement falling within half of the wave period from the predicted time-of-flight value. The distance D calculated from the shifted time-of-flight measurement is then corrected by the product of the shift factor and the pressure wave wavelength.

    Abstract translation: 用于跟踪从发射机到接收机的压力波振荡的脉冲序列的飞行时间测量计算的距离D的变化的方法和对应系统通过获得至少两个时间间隔来识别同步操作的状态, 从连续的压力波脉冲得到的飞行测量满足给定的同步性标准。 随后监测随后的飞行时间测量值,以确定移动的飞行时间测量值,该距离飞行时间测量值距离从先前的飞行时间数量计算的预计飞行时间值变化至少一半的波周期 测量。 然后,相应于波周期的整数倍来确定移位因子,通过该移位时间,必须校正移动的飞行时间测量值,以从预测的时间周期获得落在波周期的一半内的校正飞行时间测量值, 的飞行价值。 然后,通过移位因子和压力波长的乘积来校正由移动的飞行时间测量值计算的距离D.

    Acoustic tracking system
    75.
    发明授权
    Acoustic tracking system 失效
    声学跟踪系统

    公开(公告)号:US5563849A

    公开(公告)日:1996-10-08

    申请号:US495553

    申请日:1995-07-19

    CPC classification number: G01S3/8083 G01S11/14 G01S5/28

    Abstract: An acoustic tracking system designed to allow scientists and fishermen to follow dolphins and whales without harming or harassing them. The system utilizes six flow shielded hydrophones mounted on the bottom of a vessel in two arrays of three hydrophones in each array. Acoustic signals of interest (dolphin calls) which strike the hydrophone piezo-electric elements are transmitted to a receiver-display device which determines and displays both the bearing to the signal of interest and the relative range from the vessel to that signal. The receiver-display device utilizes digital microprocessors to determine the difference in signal arrival time of an incoming signal at pairs of hydrophones. The resulting computed bearing to the dolphin call is displayed as a lighted indicator on an electronic heading display. In addition, the digital microprocessors compare the received sound pressure level of incoming signals of interest and display the relative range as a series of lighted LED's on the electronic heading indicator.

    Abstract translation: PCT No.PCT / US94 / 11224 Sec。 371日期:1995年7月19日 102(e)1995年7月19日PCT PCT 1994年10月7日PCT公布。 出版物WO95 / 14242 日期1995年5月26日一种声学跟踪系统旨在使科学家和渔民能够跟随海豚和鲸鱼而不伤害或骚扰他们。 该系统在每个阵列中使用安装在容器底部的六个流动屏蔽水听器,其具有三个水听器的两个阵列。 撞击水听器压电元件的感兴趣的声信号(海豚呼叫)被传送到接收机显示设备,该接收器显示设备确定并显示所关注的信号和从容器到该信号的相对范围。 接收器显示装置利用数字微处理器来确定输入信号在水听器对处的信号到达时间的差异。 所得到的计算的对海豚呼叫的承载在电子航标显示器上显示为点亮的指示符。 此外,数字微处理器将感兴趣的输入信号的接收声压级进行比较,并将相对范围显示为电子航标指示灯上的一系列点亮的LED。

    Underwater detection system for determining carrier frequencies of
signals arriving from a wide area
    76.
    发明授权
    Underwater detection system for determining carrier frequencies of signals arriving from a wide area 失效
    用于确定从广域到达的信号的载波频率的水下检测系统

    公开(公告)号:US5561641A

    公开(公告)日:1996-10-01

    申请号:US256989

    申请日:1994-07-29

    Abstract: The present invention is directed to provide an underwater detection system which can determine frequency components contained in echoes arriving from all azimuthal directions at high speed and enhance target discriminating capabilities by presenting such frequency components.The underwater detection system rotates a pair of ultrasonic receiving beams having a fixed phase angle difference, measures phase differences between two signals picked up by both ultrasonic receiving beams, determines carrier frequencies contained in target echoes from the phase differences, derives magnitudes and directions of moving velocities of targets from the carrier frequencies, and displays such target data in different colors. Furthermore, it provides such information as over-the-ground velocities of targets themselves upon compensating target velocity data with ship velocity data.

    Abstract translation: PCT No.PCT / JP93 / 00141 Sec。 371日期1994年7月29日第 102(e)日期1994年7月29日PCT提交1993年2月4日PCT公布。 第WO93 / 16399号公报 日期:1993年8月19日本发明旨在提供一种水下检测系统,其能够以高速度确定从所有方位方向到达的回波中所含的频率分量,并通过呈现这种频率分量来增强目标识别能力。 水下检测系统旋转一对具有固定相位角差的超声波接收束,测量由两个超声波接收波束拾取的两个信号之间的相位差,从相位差确定包含在目标回波中的载波频率,导出移动的幅度和方向 来自载波频率的目标速度,并以不同的颜色显示目标数据。 此外,它通过船舶速度数据补偿目标速度数据,提供目标本身的地面速度等信息。

    Method and system for near real-time analysis and display of
electrocardiographic signals
    77.
    发明授权
    Method and system for near real-time analysis and display of electrocardiographic signals 失效
    近乎实时分析和显示心电图信号的方法和系统

    公开(公告)号:US5348020A

    公开(公告)日:1994-09-20

    申请号:US991291

    申请日:1992-12-15

    Abstract: The multidimensional ECG processing and display system of the present invention is used with an electrocardiographic (ECG) monitoring system. Input ECG data from multiple, sequential time intervals is collected and formatted into a two-dimensional matrix. The two-dimensional matrix is decomposed using singular value decomposition (SVD) to obtain its corresponding singular values and singular vectors, a compressed form of the matrix. The singular vectors are analyzed and filtered to identify and enhance signal components of interest. Selected singular vectors are transformed into their frequency domain representations by the Fast Fourier Transform (FFT), or related techniques. Certain data elements in the two-dimensional matrix are enhanced or diminished by modifying the singular values within groups of singular vectors to enhance certain objects that are associated with the ECG data and to diminish other features within the data. The enhanced data is expanded back into its original form and features in the ECG data are displayed as opaque objects within a transparent data cube.

    Abstract translation: 本发明的多维ECG处理和显示系统与心电图(ECG)监测系统一起使用。 从多个连续时间间隔输入ECG数据被收集并格式化成二维矩阵。 使用奇异值分解(SVD)分解二维矩阵以获得其对应的奇异值和奇异向量,即矩阵的压缩形式。 分析和过滤奇异矢量以识别和增强感兴趣的信号分量。 通过快速傅里叶变换(FFT)或相关技术将选择的奇异矢量变换成它们的频域表示。 二维矩阵中的某些数据元素通过修改单个向量组内的奇异值来增强或减少,以增强与ECG数据相关联的某些对象并减少数据内的其他特征。 增强型数据扩展回其原始形式,ECG数据中的特征在透明数据立方体中显示为不透明对象。

    Distance measuring apparatus and method
    78.
    发明授权
    Distance measuring apparatus and method 失效
    距离测量装置和方法

    公开(公告)号:US5122991A

    公开(公告)日:1992-06-16

    申请号:US551476

    申请日:1990-07-12

    Abstract: A distance measuring apparatus and method using an acoustic signal. It includes a transmitting probe for transmitting an acoustic signal from a transmitter, a plurality of receiving probes having resonance frequencies different from the central frequency of the signal transmitted from the transmitting probe, and a control circuit for controlling the functions of those probes. The acoustic signal is received by a receiving probe having a resonance frequency which provides the maximum received-signal sensitivity at the central frequency of the received acoustic signal under the control of the control circuit to thereby measure a long distance accurately.

    Abstract translation: 一种使用声学信号的距离测量装置和方法。 它包括用于从发射机发送声信号的发射探头,具有与从发射探头发送的信号的中心频率不同的谐振频率的多个接收探头,以及用于控制那些探测器的功能的控制电路。 声信号由具有谐振频率的接收探头接收,该谐振频率在控制电路的控制下在所接收的声信号的中心频率处提供最大接收信号灵敏度,从而精确地测量长距离。

    Passive acoustic aquatic animal finder apparatus and method
    79.
    发明授权
    Passive acoustic aquatic animal finder apparatus and method 失效
    被动呼吸水动物检测仪器及方法

    公开(公告)号:US5099455A

    公开(公告)日:1992-03-24

    申请号:US545954

    申请日:1990-07-02

    Applicant: Jorge M. Parra

    Inventor: Jorge M. Parra

    CPC classification number: G01S11/14 G01S3/802 G01S3/86 G01V1/001

    Abstract: Aquatic animal finder apparatus and method include one or more passive transducers for converting sounds, including bio-soundwaves from a living aquatic animal source traveling in a body of water, to electrical signals, the transducer is caused to scan about a selected axis, the electrical signals are filtered to eliminate all man-made signals of a periodic character and pass bio-sound electrical signals. A discriminator is connected to the filter and programmed to pass a predetermined pattern of the bio-soundwave electrical signals constituting a sonic profile, signature or imprint of a selected aquatic animal. The direction of a selected aquatic animal is detected and presented to the user and range, depth and direction of movement of the selected aquatic animal are determined solely from the biosound signals received from the aquatic animal.

    Abstract translation: 水生动物取景器装置和方法包括一个或多个用于将声音转换的无源换能器,包括来自在水体中行进的活的水生动物源的生物声波到电信号,使换能器围绕选定的轴扫描, 信号被滤波以消除周期性字符的所有人造信号并传递生物声音电信号。 鉴别器连接到滤波器并被编程以通过构成选定水生动物的声波特征,签名或印记的生物声波电信号的预定模式。 所选择的水生动物的方向被检测并呈现给用户,并且所选择的水生动物的范围,深度和运动方向仅根据从水生动物接收的生物信号确定。

    Acoustic signal detection circuit
    80.
    发明授权
    Acoustic signal detection circuit 失效
    声信号检测电路

    公开(公告)号:US5046053A

    公开(公告)日:1991-09-03

    申请号:US606582

    申请日:1990-10-31

    Inventor: Ian R. Gilchrist

    CPC classification number: G01S11/14 Y10S367/90 Y10S367/907

    Abstract: An acoustic signal receiving and processing circuit provides an output signal that enables a distance to be determined between a transmitter and a sensor. The circuit comprises a sensor which receives both noise and acoustic position signals, the acoustic signals arriving after a time delay indicative of distance between the signal's transmitter and a sensor. A level control circuit provides a plurality of output potentials, one of which is a ramp signal and another is a neutral voltage, the ramp signal produced in response to a start signal manifestation. A comparator circuit, has a pair of inputs connected to the level control and sensor circuits, respectively. The comparator circuit produces a first output signal in response to a potential on one of its inputs exceeding a potential on another of its inputs, i.e. when a voltage transition of a received acoustic signal initially passes a voltage manifested by the ramp signal. A signal detection circuit is responsive to the first output signal from the comparator circuit to cause the level control circuit to apply the neutral voltage to the comparator circuit. The comparator circuit then produces a second output signal upon a subsequent transition of the received acoustic signal past the neutral voltage, resulting in a "zero crossing" detection of the received signal. A further circuit is responsive to a start signal to commence an interval manifestation and to a detection of the second output signal to terminate the interval manifestation, whereby the interval manifestation is indicative of the distance between the transmitter and sensor.

    Abstract translation: 声信号接收和处理电路提供能够在发射机和传感器之间确定距离的输出信号。 电路包括接收噪声和声位置信号的传感器,声信号在指示信号的发射机和传感器之间的距离的时间延迟之后到达。 电平控制电路提供多个输出电位,其中之一是斜坡信号,另一个是中性电压,响应于开始信号表现而产生的斜坡信号。 比较器电路具有分别连接到电平控制和传感器电路的一对输入端。 比较器电路响应于其一个输入上的电位超过其另一个输入上的电位,即当接收的声信号的电压转变最初通过由斜坡信号表现的电压时,产生第一输出信号。 信号检测电路响应来自比较器电路的第一输出信号,使电平控制电路向比较器电路施加中性点电压。 然后,比较器电路在接收的声信号经过中性电压的随后转变之后产生第二输出信号,导致接收信号的“过零”检测。 另一个电路响应起始信号开始间隔表现,以及检测第二输出信号以终止间隔表现,由此间隔表现指示发射机和传感器之间的距离。

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