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41. 发明授权

US08995230B2 Method of extracting zero crossing data from full spectrum signals 有权
标题翻译：从全频谱信号中提取过零数据的方法
公开(公告)号：US08995230B2
公开(公告)日：2015-03-31
申请号：US13558945
申请日：2012-07-26
申请人： Ian Agranat
发明人： Ian Agranat
IPC分类号： G01R23/16 , G01S15/34
CPC分类号： G01S15/34 , G01H3/00 , G01H3/08
摘要： Methods and apparatus for using Fourier techniques to detect and isolate the fundamental frequency sweep of echolocation calls produced by bats, or of other narrow-band whistles as produced by other kinds of animals such as birds and whales. According to one example, a Fourier transform is applied on blocks of input samples to produce output frames, and a narrowband frequency modulated signal is detected and traced through the output frames. A filter is applied in each frame to attenuate frequencies above or below the narrowband signal, and an inverse Fourier transform is applied to produce an output signal. The resulting signal may then be analyzed with zero crossing techniques to measure the precise instantaneous frequency sweep.
摘要翻译：使用傅里叶技术检测和分离由蝙蝠或其他种类的动物如鸟类和鲸鱼产生的其他窄带口哨产生的回声定位呼叫的基频扫描的方法和装置。根据一个示例，对输入样本块施加傅立叶变换以产生输出帧，并且通过输出帧检测并跟踪窄带调频信号。在每个帧中应用滤波器以衰减窄带信号上方或下方的频率，并且应用傅立叶逆变换以产生输出信号。然后可以用零交叉技术分析所得信号以测量精确的瞬时频率扫描。

42. 发明授权

US6040898A FMCW distance measurement process 失效
标题翻译： FMCW距离测量过程
公开(公告)号：US6040898A
公开(公告)日：2000-03-21
申请号：US981291
申请日：1997-12-22
申请人： Jan Michael Mrosik , Joerg Nagel , Christo G. Stojanoff
发明人： Jan Michael Mrosik , Joerg Nagel , Christo G. Stojanoff
IPC分类号： G01S13/34 , G01S7/481 , G01S7/497 , G01S13/36 , G01S15/34 , G01S15/36 , G01S17/32 , G01S17/36 , G01C3/08 , G01S13/08
CPC分类号： G01S17/325 , G01S17/36 , G01S13/34 , G01S13/36 , G01S15/34 , G01S15/36 , G01S7/4818 , G01S7/497
摘要： In an FMCW distance measurement process, a wave train of carrier frequency f.sub.0 is modulated with a time function f(t) and subdivided into a transmission signal and into a reference signal in deterministic phase relationship with the transmission signal; the transmission signal is sent on a transmission section to be measured and the reference signal is supplied to a phase difference-forming arrangement; the signal reflected in the transmission section with a delay that corresponds to propagation time .tau. is also supplied as a reception signal to the phase difference-forming arrangement that forms the time difference function .theta.(t) between the phases of reference and reception signals; the phase difference function .theta.(t) is separately evaluated in a continuous fraction .theta..sub.= that corresponds to the carrier frequency f.sub.0 and in an alternating fraction .theta..sub.- (t) that corresponds to the modulation time function f(t); and the propagation time .tau. proportional to the distance is finally determined by evaluating together both phase difference information.
摘要翻译： PCT No.PCT / EP96 / 02636 Sec。 371 1997年12月22日第 102（e）1997年12月22日PCT PCT 1996年6月19日PCT公布。公开号WO97 / 01107 日期1997年1月9日在FMCW距离测量过程中，以时间函数f（t）调制载波频率f0的波列，并将其细分为传输信号，并与传输信号确定相位关系的参考信号; 发送信号在要测量的发送部分发送，并且将参考信号提供给相位差形成装置; 反射在具有对应于传播时间τ的延迟的传输部分中的信号也作为接收信号提供给形成参考和接收信号的相位之间的时差函数theta（t）的相位差形成装置; 在对应于载波频率f0的连续分数θ=和对应于调制时间函数f（t）的交替分数θ - （t）中分别计算相位差函数theta（t）。并且通过一起评估两个相位差信息来最终确定与距离成比例的传播时间τ。

43. 发明授权

US5903516A Acoustic force generator for detection, imaging and information transmission using the beat signal of multiple intersecting sonic beams 失效
标题翻译：声力发生器，用于使用多个相交声波束的拍频信号进行检测，成像和信息传输
公开(公告)号：US5903516A
公开(公告)日：1999-05-11
申请号：US758879
申请日：1996-12-02
申请人： James F. Greenleaf , Mostafa Fatemi-Booshehri
发明人： James F. Greenleaf , Mostafa Fatemi-Booshehri
IPC分类号： G01S7/52 , G01S15/87 , G01S15/88 , G01S15/89 , G10K15/02 , G01S15/34
CPC分类号： G10K15/02 , G01S15/89 , G01S15/8952 , G01S15/87 , G01S15/88 , G01S7/52038
摘要： A force is produced within an object by two intersecting ultrasonic beams. The frequency of this force is equal to the beat frequency of the two intersecting beams when their frequencies are made different, or the force may vary as a function of a baseband audio signal f(t) that is used to modulate one of the two beams. The sonic waves produced at the intersection of the two beams can be used to detect the presence of objects or to image objects based on their mechanical properties, or to regenerate desired audio signals at the intersection.
摘要翻译：通过两个相交的超声波束在物体内产生力。这个力的频率等于它们的频率不同时两个交叉光束的拍频，或者力可以作为用于调制两个光束之一的基带音频信号f（t）的函数而变化。在两个光束的交点处产生的声波可以用于基于它们的机械特性来检测物体的存在或图像对象，或者在相交处再生期望的音频信号。

44. 发明授权

US4140022B1 Acoustic imaging apparatus 失效
标题翻译：声学成像装置
公开(公告)号：US4140022B1
公开(公告)日：1995-05-16
申请号：US86245477
申请日：1977-12-20
申请人： HEWLETT PACKARD CO
发明人： MASLAK SAMUEL H
IPC分类号： A61B8/14 , A61B8/00 , G01N29/06 , G01S7/52 , G01S7/523 , G01S15/34 , G01S15/89 , G06Q50/00 , G10K11/34 , H04R3/00 , H04R17/00 , G01N29/04
CPC分类号： G01N29/06 , G01S7/52046 , G01S7/52063 , G01S15/8918 , G10K11/346

45. 发明授权

US3939463A Acoustic transponder navigation system 失效
标题翻译：声学应答器导航系统
公开(公告)号：US3939463A
公开(公告)日：1976-02-17
申请号：US342833
申请日：1964-02-05
申请人： Neil C. Kelly , Robert L. McFarland , Jack W. Sampsell
发明人： Neil C. Kelly , Robert L. McFarland , Jack W. Sampsell
IPC分类号： G01S15/34 , G01S15/74 , G01S15/87 , G01S9/68
CPC分类号： G01S15/74 , G01S15/34 , G01S15/87
摘要： 1. In combination in an acoustic obstacle detection and navigating system;A transmitting station comprising a variable frequency oscillator, a sawth generator coupled to said oscillator for sweeping the frequency of oscillations through the range of frequencies from f.sub.1 to f.sub.2, a submersible projection transducer coupled to said oscillator for continuously ensonifying a sector of water about said transducer with sonic energy varying between f.sub.1 and f.sub.2,A fixed frequency oscillator of frequency f.sub.3 at said station,A sonar receiver at said station including a mixer for combining the frequencies f.sub.1 to f.sub.2 of said oscillator with the echo frequencies reflected from a passive target, so that the difference at any instant between the reflected frequency and the transmitted frequency is a frequency proportional to the rate of change of said variable frequency and target range,A remote transponder station including a receiving hydrophone coupled to a transmitting transducer, a mixer coupled between said hydrophone and transmitting transducer, a local oscillator of fixed frequency, f.sub.3, coupled to said mixer for shifting received frequencies from the range of f .sub.1 to f.sub.2, to the range of f.sub.1 + f.sub.3 to f.sub.2 + f.sub.3, andA second receiver at said transmitting station including a mixer for combining signals repeated from said remote transponder with the frequencies, f.sub.1 to f.sub.2 of said variable oscillator displaced by the frequency f.sub.3, of said fixed frequency oscillator, and a common display for both mentioned receivers.
摘要翻译：在声学障碍物检测和导航系统中结合使用; 包含可变频率振荡器的发射站，连接振荡器的振荡发生器，用于通过从F1到F2的频率范围振荡振荡频率，连接到振荡器的不可预知的投影传感器，连续地识别关于传感器的水的部分具有F1和F2之间的SONIC能量变化，频率为F3的固定频率振荡器，位于固定台的声音接收器，包括用于将来自振荡器的频率F1到F2的混合器与从被动目标反射的ECHO频率组合的混合器在反射频率和发射频率之间的任何情况下的差异是对可变频率和目标范围的变化的频率的比例，包括与传输传输器耦合的接收的疏水器的远程移动站，混合器之间的耦合水力发电机和发射变压器，F的本地振荡器 F3F耦合，用于将接收到的频率从F 1到F2的范围转换成F1 + F3到F2 + F3的范围的混合器，以及包含用于组合信号的混合器的第二接收器具有频率的专用遥控器，由频率F3，固定频率振荡器转换的可变振荡器的F1至F2，以及两个接收器的通用显示器。

46. 发明授权

US3794964A Ultrasonic imaging device 失效
标题翻译：超声波成像装置
公开(公告)号：US3794964A
公开(公告)日：1974-02-26
申请号：US3794964D
申请日：1972-05-25
申请人： HITACHI LTD
发明人： KATAKURA K
IPC分类号： G01S15/34 , G01S15/89 , G01S9/66
CPC分类号： G01S15/8952 , G01S15/34
摘要： An ultrasonic imaging device comprising a transmitting transducer which is rectilinearly arranged and which transmits acoustic waves of input signal frequencies to a target object in directions corresponding to said frequencies, an acoustic lens which converges reflected acoustic waves from said target object, and a receiving transducer which is divided in a direction orthogonal to the scanning direction of said acoustic lens, each divided part constituting a receiving element, and which receives the acoustic waves converged by said acoustic lens.
摘要翻译：一种超声波成像装置，包括直线布置的发射换能器，并且将对应于所述频率的方向的输入信号频率的声波传输到目标对象，收集来自所述目标物体的反射声波的声透镜和接收换能器，在与所述声透镜的扫描方向正交的方向上分割，每个分割部分构成接收元件，并且接收由所述声透镜会聚的声波。

47. 发明授权

US3260991A Apparatus for detecting motion and objects 失效
标题翻译：用于检测运动和物体的装置
公开(公告)号：US3260991A
公开(公告)日：1966-07-12
申请号：US26657363
申请日：1963-03-20
申请人： AMERICAN DISTRICT TELEGRAPH CO
发明人： PETER LAAKMANN
IPC分类号： G01S15/34 , G09B21/00
CPC分类号： G09B21/006 , G01S15/34 , Y10S367/91

48. 发明授权

US3135942A Frequency-modulation echo-sounder 失效
标题翻译：调频回声测深仪
公开(公告)号：US3135942A
公开(公告)日：1964-06-02
申请号：US2831760
申请日：1960-05-11
申请人： NAT RES DEV
发明人： GORDON TUCKER DAVID , LESLIE KAY
IPC分类号： G01S15/34
CPC分类号： G01S15/34

49. 发明授权

US3016513A Fm echo-ranging system 失效
标题翻译： Fm回波测距系统
公开(公告)号：US3016513A
公开(公告)日：1962-01-09
申请号：US48850143
申请日：1943-05-26
申请人： DYKE KARL S VAN
发明人： DYKE KARL S VAN
IPC分类号： G01S15/34 , G01S15/42
CPC分类号： G01S15/34 , G01S15/42 , Y10S367/904

50. 发明授权

US11125857B2 Moving object detection system and moving object detection method 有权
公开(公告)号：US11125857B2
公开(公告)日：2021-09-21
申请号：US16040674
申请日：2018-07-20
申请人： NEC Corporation
发明人： Hisashi Shiba
IPC分类号： G01S7/35 , G01S13/00 , G01S7/536 , G01S15/58 , G01S13/58 , G01S15/34
摘要： A moving object detection system comprises: a transmission waveform setting section to set a transmission signal in such a way that a frequency of the transmission signal is linearly changed; a transmitting section to transmit the transmission signal; a receiving section to receive a reception signal resulting from a reflection of the transmission signal at an object; a Doppler coefficient estimating section to estimate a Doppler coefficient associated with a movement of the object by performing arithmetic processing on a waveform of the reception signal at a present time point and waveforms of the reception signal at one or more past time points, the one or more past time points being earlier than the present time point by one or more specified periods of time; and an object detection section to detect the object based on the transmission signal, the Doppler coefficient, and the reception signal.

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