公开(公告)号：US20040184351A1

公开(公告)日：2004-09-23

申请号：US10720226

申请日：2003-11-25

发明人： Yasushi Nishimori ,  Minoru Handa ,  Shiroh Ozasa ,  Masaru Nishida ,  Hiromune Matsumoto

IPC分类号： G01S015/00

CPC分类号： G10K11/341 ,  G01S7/52003 ,  G01S15/101

摘要： An ultrasonic transmitter generates a reference signal based on a clock signal of a specific frequency and a control signal made up of binary values 0 and 1 for controlling how the level (High or Low) of a carrier drive signal should change, and generates an analog signal constituting the carrier drive signal by pulse-duration-modulating the reference signal. Produced from the carrier drive signal, a driving pulse signal is shaped into a curved waveform having a gradually rising leading edge and a gradually falling trailing edge as the amplitude of the carrier drive signal is gradually increased and decreased based on the control signal.

摘要翻译： 超声波发射器基于特定频率的时钟信号和由二进制值0和1组成的控制信号来生成参考信号，用于控制载波驱动信号的电平（高或低）如何改变，并且产生模拟 通过对参考信号进行脉冲持续时间调制来构成载波驱动信号的信号。 根据载波驱动信号，由于基于控制信号，驱动脉冲信号被形成为具有逐渐上升的前沿和逐渐下降的后沿的弯曲波形，随着载波驱动信号的幅度逐渐增加和减小。

公开(公告)号：US20040165478A1

公开(公告)日：2004-08-26

申请号：US09901751

申请日：2001-07-09

发明人： John B. Harmon JR. ,  Whitlow Au ,  Paul Eugene Nachtigall ,  Herbert Lawrence Roitblat

IPC分类号： G01S015/00

CPC分类号： G01V1/003 ,  G01S7/539 ,  G01S7/54 ,  G01S15/89

摘要： The Biomimetic Sonar invention ensonifies submerged objects, digitizes acoustic images reflected from the ensonified objects, and classifies and stores the digitized images using electronic processing derived from that believed to be used by Tursiops truncatus, the bottlenose dolphin. The invention also provides a probable identification of an ensonified object based on comparison of an ensonified object with templates in a library of acoustic images.

摘要翻译： 生物模拟声纳发明包含潜水物体，数字化从被接收的物体反射的声学图像，并使用从相信由Tursiops truncatus（宽吻海豚）使用的电子处理对数字化图像进行分类和存储。 本发明还提供了一种基于声音图像库中的被确定对象与模板的比较的被确定对象的可能标识。

公开(公告)号：US20040141417A1

公开(公告)日：2004-07-22

申请号：US10450179

申请日：2003-06-03

发明人： Tomoharu Wakabayashi ,  Masaharu Ohya ,  Kazuyoshi Kobayashi ,  Hiroaki Takinami ,  Nobuhiko Takeda

IPC分类号： G01S015/00 ,  G06F003/05

CPC分类号： H03M1/1019 ,  G01D3/032 ,  H03M1/188

摘要： The present invention provides an apparatus that automatically adjusts self-noise which apparatus can lower the lower limit value of a measurement range by reducing the effects of self-noise on measured values. This apparatus corrects self-noise when amplifying an output signal from a sensor 1 so as to conform to a sensor sensitivity G, further processing the amplified signal, and then outputting the processed signal as a measured value. This apparatus includes a sensor sensitivity adjusting circuit 3 that adjusts an amplification factor so as to conform to the sensor sensitivity G, a self-noise value calculating circuit 4 that calculates a self-noise component FnullN from the amplification factor adjusted by the sensor sensitivity adjusting circuit 3 so as to conform to the sensor sensitivity G, and a measured value correcting circuit 6 that calculates a true measured value FnullS from the self-noise component FnullN calculated by the self-noise value calculating circuit 4 as well as a measured value L containing the self-noise component FnullN.

摘要翻译： 本发明提供了一种自动调节自噪声的装置，该设备可以通过减少自噪声对测量值的影响来降低测量范围的下限值。 该装置在放大来自传感器1的输出信号时校正自噪声，以符合传感器灵敏度G，进一步处理放大信号，然后输出处理后的信号作为测量值。 该装置包括：传感器灵敏度调节电路3，其根据传感器灵敏度G调节放大系数;自噪声值计算电路，根据由传感器灵敏度调节电路调节的放大系数，计算自噪声分量FN 3，以符合传感器灵敏度G，以及测量值校正电路6，其从由自噪声值计算电路计算的自噪声分量FN以及包含该测量值的测量值L计算真实测量值FS 自噪声分量FN

公开(公告)号：US20040114465A1

公开(公告)日：2004-06-17

申请号：US10632172

申请日：2003-07-30

发明人： Reiner Marchthaler ,  Frank Mack

IPC分类号： G01S015/00

CPC分类号： B60R21/01536 ,  B60R21/0152 ,  B60R21/01526

摘要： A system for classifying occupants of a vehicle, which, in addition to a sound-wave receiver, has at least one sound-wave transmitter in the seat. Therefore, it is possible to obtain additional information, particularly by using a propagation-time measurement and a shift in frequency. Moreover, by the evaluation of the reception spectra, it is possible to infer the ageing of the elements used for generating or receiving sound waves.

摘要翻译： 一种用于对车辆乘员进行分类的系统，除了声波接收器之外，座椅中至少有一个声波发射器。 因此，可以获得附加信息，特别是通过使用传播时间测量和频率偏移。 此外，通过对接收频谱的评估，可以推断用于产生或接收声波的元件的老化。

公开(公告)号：US20040081021A1

公开(公告)日：2004-04-29

申请号：US10656655

申请日：2003-09-05

申请人： INESA East, Ltd. ,  InESA, Inc.

发明人： Alexander M. Raykhman ,  David J. Freger ,  Boris Sherman

IPC分类号： G01S015/00

CPC分类号： G01S7/52004 ,  G01S7/54 ,  G01S15/08 ,  G01S15/46 ,  G01S15/87 ,  Y10S367/902

摘要： An acoustic method for measuring of a distance between an emitter of acoustic energy and a target object provides for an accurate measurement by having the measurement's outcome invariant to the speed of sound variations along the acoustical path between the emitter and the target. A plurality of emitters and a plurality of receivers are used in the invention. One acoustic emitter and one receiver are located in a spatial region such that the sent and the reflected acoustical energy passes along substantially same vertical line between the emitter and the target. Another acoustic emitter sends the acoustical energy at an angled direction to the same area on the target's reflecting surface as the first emitter does. The corresponding echo travels to another receiver. During the measurement, two specific variables are being monitored. The first variable is associated with the distance between the first emitter and the target. The second variable is associated with the distance that the acoustic energy travels from the second emitter to the target to the second receiver. Both monitored variables are affected by the possible variations of the speed of sound. The sought distance between the first emitter and the target's reflecting area is calculated by a function of the ratio between the monitored variables, whereby, possible variations of the speed of sound to the result of the distance measurement are irrelevant.

摘要翻译： 用于测量声能发射器与目标物体之间的距离的声学方法通过使得测量结果不变于沿发射器和目标之间的声学​​路径的声音变化的速度而提供准确的测量。 在本发明中使用多个发射器和多个接收器。 一个声发射器和一个接收器位于空间区域中，使得发射和反射的声能在发射器和靶之间沿着基本相同的垂直线传递。 另一个声发射器将倾斜方向的声能发射到目标的反射表面上与第一发射体相同的区域。 相应的回波传播到另一个接收器。 在测量期间，正在监控两个具体变量。 第一个变量与第一个发射器和目标之间的距离相关联。 第二变量与声能从第二发射器传播到目标到第二接收器的距离相关联。 两个监控的变量都受到声速的可能变化的影响。 通过所监视的变量之间的比率的函数来计算第一发射器和目标反射区域之间的寻找距离，由此，声音速度与距离测量结果的可能变化是无关的。

公开(公告)号：US20040004905A1

公开(公告)日：2004-01-08

申请号：US10447105

申请日：2003-05-29

发明人： Quinton Lyon ,  Claude Mercier

IPC分类号： G01S007/40 ,  G01S015/00

CPC分类号： G01S7/52004 ,  G01S7/526 ,  G01S15/10 ,  Y10S367/908

摘要： A calibration module and methods for a time-of-flight ranging system. The calibration module may be built into the circuitry of the time-of-flight ranging system and allows various operating parameters to be measured and evaluated. The calibration modes include amplitude calibration, frequency calibration, and time delay calibration. The calibration mode also includes an electronic noise measurement mode. The calibration modes may be initiated on power-up or reset, or in response to user input or time-based trigger.

公开(公告)号：US20030214880A1

公开(公告)日：2003-11-20

申请号：US10232812

申请日：2002-08-28

发明人： Francis D. Rowe

IPC分类号： G01S015/00

CPC分类号： G10K11/343 ,  G01S7/52003 ,  G01S7/521

摘要： A sonar array for forming multiple transmit and/or receive acoustic beams by a frequency beamforming technique. In frequency division beamforming, beam steering direction is made a function of frequency by driving (receiving) each element of a uniformly spaced line array by a signal which leads or lags its nearest neighbor by a fixed phase shift, nullnull. This permits scanning a transmit and/or receive beam through a range of angles by changing its frequency. The same principle can be used to form multiple simultaneous transmit and/or receive beams. This is accomplished by transmitting a wide bandwidth signal and receiving the echoes through a spectrum analyzer. Each frequency bin of the spectrum analyzer then corresponds to a beam pointing in its own unique direction. Advantages of such a sonar system include improved cost, weight, and size versus performance for a variety of systems including ahead looking sonars and bottom mapping sonars.

摘要翻译： 用于通过频率波束成形技术形成多个发射和/或接收声束的声纳阵列。 在频分波束形成中，通过用均匀间隔的线阵列的每个元件通过固定相移Deltaphi引导或滞后其最近邻的信号来使波束转向方向成为频率的函数。 这允许通过改变其频率在一定范围的角度扫描发射和/或接收波束。 可以使用相同的原理来形成多个同时发送和/或接收波束。 这是通过传输宽带宽信号并通过频谱分析仪接收回波来实现的。 然后，频谱分析仪的每个频率仓对应于指向其独特方向的波束。 这种声纳系统的优点包括改进的成本，重量和尺寸与各种系统的性能相比，包括前视声纳和底部映射声纳。

公开(公告)号：US20020159334A1

公开(公告)日：2002-10-31

申请号：US09791671

申请日：2001-02-26

发明人： David D. Caulfield

IPC分类号： G01S015/00

CPC分类号： G01N29/4436 ,  G01N29/348 ,  G01N29/4418 ,  G01N29/4445 ,  G01S13/887 ,  G01V1/001 ,  G01V3/12

摘要： The present invention provides signification improvements over the apparatus and method disclosed by U.S. Pat. No. 4,922,467. The invention provides an apparatus for material classification and substance identification of an object contained within an enclosure, or buried beneath the ground. The improvements to the present invention include the use of a source of either electromagnetic or acoustic energy, and electromagnetic or acoustic energy receivers, as appropriate. In addition, the present invention discloses the use of energy pulses of differing frequencies, such that the signal processor can compute the rate of change of energy absorption of the substance, as a function of frequency (dnull/df). In this way, the apparatus permits the formulation of a highly detailed and accurate object signature, which can be compared with a database of known object signatures for exact substance identification.

摘要翻译： 本发明提供了相对于美国专利公开公开的装置和方法的意义上的改进。 第4,922,467号。 本发明提供了一种用于材料分类和物质识别装置，该装置包含在外壳内或埋在地下的物体。 本发明的改进包括适当地使用电磁或声能源以及电磁或声能接收器。 此外，本发明公开了使用不同频率的能量脉冲，使得信号处理器可以根据频率（dalpha / df）计算物质的能量吸收变化率。 以这种方式，该装置允许制定高度详细和准确的对象签名，其可以与用于精确物质识别的已知对象签名的数据库进行比较。

公开(公告)号：US20040205134A1

公开(公告)日：2004-10-14

申请号：US10367640

申请日：2003-02-14

发明人： Charles J. Digate ,  Christopher F. Herot ,  Tonytip Ketudat ,  Alexis M. Kopikis ,  Daniel J. Teven

IPC分类号： G06F015/16 ,  G01S015/00

CPC分类号： H04L65/403 ,  G06Q10/10 ,  H04L29/06 ,  H04L29/06027 ,  H04L51/043 ,  H04L65/1043 ,  H04L67/24 ,  H04L69/329

摘要： A system and method for immediate and delayed real-time communication activities using availability data from and communications through an external instant messaging system, that operates to obtain aggregated user online presence information through its own client software, through interception of client-server communications between an external instant messaging client and server, and through other available interfaces to user account information on such external instant messaging systems. The system operates to gather user online presence information in part by intercepting communications between an instant messaging client and the Internet. The aggregate presence data, as well as other information describing the availability of a user, is used to intelligently route real-time communications, such as instant messages and phone calls. The disclosed system further implements a technique for waiting for changes in a user's availability status, and for performing actions on a user's behalf in response to such changes in availability status.

公开(公告)号：US20040179429A1

公开(公告)日：2004-09-16

申请号：US10674870

申请日：2003-09-29

申请人： Siemens Milltronics Process Instruments Inc.

发明人： Nigel Ashley Preston

IPC分类号： G01S015/00

CPC分类号： G01S7/527 ,  G01F23/2962 ,  G01S7/521 ,  G01S7/53 ,  G01S15/101

摘要： A method and system for high-pass filtering to remove DC and/or low frequency components of a receive signal from the transducer of a level measurement system. In one embodiment, the method includes generating a maximum signal profile and a minimum signal profile for the receive signal, generating a midpoint reference signal from the maximum and minimum signal profiles and subtracting the midpoint reference signal from the receive signal to produce a filtered signal.

摘要翻译： 一种用于高通滤波以从电平测量系统的换能器去除接收信号的DC和/或低频分量的方法和系统。 在一个实施例中，该方法包括产生用于接收信号的最大信号分布和最小信号分布，从最大和最小信号分布生成中点参考信号，并从接收信号中减去中点参考信号以产生滤波信号。