| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | 声源探测用麦克风支承装置 | CN201480014793.0 | 2014-01-31 | CN105191345A | 2015-12-23 | 山中高章; 后藤昌也; 加藤利彦 |
| 由环状的框架(2)、朝向框架(2)的内侧突出的多个固定式臂部(4)、比固定式臂部(4)长且可装卸的多个可动式臂部(8)以及多个麦克风(14)构成。通过将多个可动式臂部(8)呈放射状地收纳于框架(2)的内侧，而构筑成如图8的(A)那样的小尺寸的麦克风阵列。另一方面，通过将多个可动式臂部(8)呈放射状地在框架(2)的外侧展开，而构筑成如图8的(B)那样的大尺寸的麦克风阵列。这样一来，在构筑圆形的二维麦克风阵列时，能够容易改变其尺寸，从而能够应对宽频的声音探测。 | ||||||
| 2 | 声源探测用麦克风支承装置 | CN201480014793.0 | 2014-01-31 | CN105191345B | 2016-11-02 | 山中高章; 后藤昌也; 加藤利彦 |
| 由环状的框架(2)、朝向框架(2)的内侧突出的多个固定式臂部(4)、比固定式臂部(4)长且可装卸的多个可动式臂部(8)以及多个麦克风(14)构成。通过将多个可动式臂部(8)呈放射状地收纳于框架(2)的内侧，而构筑成如图8的(A)那样的小尺寸的麦克风阵列。另一方面，通过将多个可动式臂部(8)呈放射状地在框架(2)的外侧展开，而构筑成如图8的(B)那样的大尺寸的麦克风阵列。这样一来，在构筑圆形的二维麦克风阵列时，能够容易改变其尺寸，从而能够应对宽频的声音探测。 | ||||||
| 3 | 用于处理信号的方法和设备 | CN201210367888.3 | 2012-09-28 | CN103117064B | 2015-05-20 | K.索伦森 |
| 公开了一种用于在设备中处理信号的方法、设备和计算机程序产品。在设备的输入装置中，信号在一角度范围上接收，信号包括在到达输入装置的主到达方向接收到的主要信号和在到达输入装置的相应的至少一个干扰到达方向接收到的至少一个干扰信号。为所述角度范围上接收到的信号确定多个测量值，每个测量值涉及特定的角度，并指示从该特定角度接收到的接收信号的能量。对于所述角度范围内的每个角度，从用于那个角度的测量值中移除一个值，该值基于以下各项中的最小值：（i）用于那个角度的测量值的能量，和（ii）用于围绕主到达方向镜像的相对应角度的相对应测量值的能量，其中多个测量值中的剩余值指示所述至少一个干扰到达方向。 | ||||||
| 4 | 处理信号 | CN201210367888.3 | 2012-09-28 | CN103117064A | 2013-05-22 | K.索伦森 |
| 公开了一种用于在设备中处理信号的方法、设备和计算机程序产品。在设备的输入装置中，信号在一角度范围上接收，信号包括在到达输入装置的主到达方向接收到的主要信号和在到达输入装置的相应的至少一个干扰到达方向接收到的至少一个干扰信号。为所述角度范围上接收到的信号确定多个测量值，每个测量值涉及特定的角度，并指示从该特定角度接收到的接收信号的能量。对于所述角度范围内的每个角度，从用于那个角度的测量值中移除一个值，该值基于以下各项中的最小值：（i）用于那个角度的测量值的能量，和（ii）用于围绕主到达方向镜像的相对应角度的相对应测量值的能量，其中多个测量值中的剩余值指示所述至少一个干扰到达方向。 | ||||||
| 5 | SPEECH RECOGNITION | US15565350 | 2016-04-11 | US20180075867A1 | 2018-03-15 | Tobias DAHL; Matthieu LACOLLE |
| An optical microphone arrangement comprises: an array of optical microphones (4) on a substrate (8), each of said optical microphones (4) providing a signal indicative of displacement of a respective membrane (24) as a result of an incoming audible sound; at first processor (12) arranged to receive said signals from said optical microphones (4) and to perform a first processing step on said signals to produce a first output; and a second processor (14) arranged to receive at least one of said signals or said first output; wherein at least said second processor (14) determines presence of at least one element of human speech from said audible sound. | ||||||
| 6 | Filtering discrete time signals using a notch filter | US13265288 | 2010-12-04 | US09112479B2 | 2015-08-18 | Satya Sudhakar Yedlapalli; Kuchibhotla Venkata Subrahmanya Hari |
| Various techniques are generally described for digital signal processing (DSP) such as discrete time filters. In some examples, a Canonic Filter Module (CFM) can be used to configure the discrete time filter using an LSF-Model with a finite length sequence. A single CFM can be configured to provide any type of discrete time filter used in signal processing. Filters can be modeled as a set of interconnected notch filters, a lattice structure of a discrete time filter is generally described that is based on a LSF-Model. | ||||||
| 7 | Processing Signals | US13308106 | 2011-11-30 | US20130083832A1 | 2013-04-04 | Karsten Vandborg Sorensen |
| Signals are received, over a range of angles, at an input of a device. The signals include a primary signal with a principal direction of arrival and an interfering signal with a respective interfering direction of arrival at the input. Measurements are determined for the received signals over the range of angles. Each measurement relates to a particular angle and indicating the energy of the received signals which are received from the particular angle. For each angle over the range of angles, a value is removed from the measurement for that angle, the value being based on the minimum of: (i) the energy of the measurement for that angle, and (ii) the energy of a corresponding measurement for a corresponding angle mirrored around the principal direction of arrival, whereby the remaining values of the plurality of measurements are indicative of said at least one interfering direction of arrival. | ||||||
| 8 | Filtering Discrete Time Signals Using a Notch Filter | US13265288 | 2010-12-04 | US20120185525A1 | 2012-07-19 | Satya Sudhakar Yedlapalli; Kuchibhotla Venkata Subrahmanya Hari |
| Various techniques are generally described for digital signal processing (DSP) such as discrete time filters. In some examples, a Canonic Filter Module (CFM) can be used to configure the discrete time filter using an LSF-Model with a finite length sequence. A single CFM can be configured to provide any type of discrete time filter used in signal processing. Filters can be modeled as a set of interconnected notch filters, a lattice structure of a discrete time filter is generally described that is based on a LSF-Model. | ||||||
| 9 | Signal processing system and method for use in multibeam sensing systems | US167365 | 1993-12-16 | US5483500A | 1996-01-09 | William J. Capell, Sr.; Christos Zabounidis; Kushal K. Talukdar |
| The present invention is a system and technique for reducing the effective beam width of a receive beam for a sensing system, for example a sonar or radar system. The sensing system includes a plurality of physical sensors each for measuring a receive signal wherein each receive signal includes a first and second data processing unit. The sensing system may include means for computing sensor data for at least one extrapolated-sensor, including, first extrapolation means for computing a first extrapolated-sensor data unit of the at least one extrapolated-sensor by extrapolation of a first data processing unit of the plurality of physical sensors, and second extrapolation means for computing a second extrapolated-sensor data unit of the at least one extrapolated-sensor by extrapolation of a second data processing unit of the plurality of physical sensors. The system may also include means for combining the first and second extrapolated-sensor data units of the at least one extrapolated-sensor to the first and second data processing units of the plurality of physical sensors to thereby generate a narrower effective beam width of a receive beam. | ||||||
| 10 | Target tracking system for determining bearing of a target | US582571 | 1990-09-14 | US5095467A | 1992-03-10 | David P. Olson; Jonathan C. Werder |
| A passive acoustic target tracking system includes three microphones arrayed respectively at corners of an equilateral triangle for sensing acoustic energy emitted by a target, such as a heavy vehicle, and generating separate streams of analog signals representative of the acoustic energy sensed at the triangle corners. Hardware of the tracking system receives the separate streams of analog signals from the microphones and conditions and converts the separate streams of analog signals from analog to digital form and outputs the separate streams as digital signals. Software of the tracking system receives the separate streams of digital signals and provides the bearing to the target emitting the sensed acoustic energy. The software includes a minimum residual correlation algorithm and a two-state kalman filter algorithm. The minimum residual correlation algorithm receives the separate streams of digital signals, performs correlations on the separate streams from pairs of the microphones, and produces a raw azimuth signal as a result of the correlation. The two-state kalman filter algorithm receives the raw azimuth signal, performs a two-state kalman filtering of the raw azimuth signal, and produces a smooth azimuth signal constituting the bearing to the target emitting the sensed acoustic energy. | ||||||
| 11 | Directional acoustic logger apparatus and method | US677776 | 1984-12-03 | US4703459A | 1987-10-27 | Frank M. Bower |
| An acoustic logging apparatus and method are disclosed for determining the direction of a subsurface noise source, such as a blowout well or fluid channeling behind well casing. The apparatus comprises cylindrical piezoelectric crystal transducers processed to buck each other. The method employs such an apparatus and includes generating and observing output from the crystals. The direction of the noise relative to the position of the apparatus is indicated by determining the position of the crystal transducers when their phase and amplitude differences are at a minimum. The transducer leading in phase at a point perpendicular to said position is the transducer closest to the noise source and is used to indicate the absolute direction of the noise. | ||||||
| 12 | Device for determining the direction of a plane wave | US505009 | 1974-09-11 | US3947805A | 1976-03-30 | Anne Marie Faugeras; Andre Lambert |
| Device for determining the direction of a plane wave comprising P detectors regularly spaced out on a rectilinear base, a clock whose frequency is 1/.tau. and several channels, each connected with a determined direction. The channel m comprises a device sampling all the m.tau. signals of the detectors whose outputs are connected to an adder followed by m - 1 delay cells in series, the output of the last one being applied to the input of the adder. Each adder supplies a signal depending on the difference between the direction m and the direction of the plane wave. Application is to sonars. | ||||||
| 13 | Optical signal processor | US8406470 | 1970-10-26 | US3890598A | 1975-06-17 | HAGEN WILLIAM B; RUDIN MORTON |
| An optical signal processor operates upon the outputs of a plurality of transducers. The transducers may comprise a radar antenna array or an underwater sonar antenna array. The processor receives the signals from each transducer and combines them optically to derive the location of a target.
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| 14 | Multipath focusing signal processor | US3424269D | 1966-09-30 | US3424269A | 1969-01-28 | SCHROEDER MANFRED R |
| 15 | Three-dimensional compensator for a two-dimensional sonar array | US48763665 | 1965-09-15 | US3311871A | 1967-03-28 | SIDNEY BARON |
| 16 | 電子機器および電子機器の制御方法 | JP2014071634 | 2014-03-31 | JP2015194557A | 2015-11-05 | 水谷 文俊 |
| 【課題】ユーザが持った状態で音声が集音されていても、話者の方向を推定する精度が低下することを抑制すること。 【解決手段】実施形態によれば、電子機器は加速度センサと発話方向推定処理手段と制御手段とを具備する。加速度センサは、加速度を検出する。発話方向推定処理手段は、マイクに入力される音声の位相差を利用して話者の方向を推定する。制御手段は、前記加速度センサによって検出された加速度に応じて、前記話者の方向を推定する処理に係るデータの初期化を前記発話方向推定処理手段に要求する。 【選択図】 図3 |
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| 17 | Method for reducing directional noise in voice and device for executing the same method | JP33708993 | 1993-12-28 | JPH06245291A | 1994-09-02 | KURISUTEIAN GURI |
| PURPOSE: To provide a method for reducing a directional noise in a voice and an inexpensive device for executing this method which can be used for obtaining a reference noise source indicating the maximum correlation with a noise affecting a voice including a noise. CONSTITUTION: A sound collecting operation is executed by at least four microphones arranged in a plane before a speaker, and linear connection is formed by the addition and subtraction of signals from those microphones. Then, the specific one of those connection is used as a sound source of only a noise, and they are processed by an adaptive vector filter, and the estimate of a noise to be subtracted from a signal including a noise is generated. COPYRIGHT: (C)1994,JPO | ||||||
| 18 | Cardioid directivity generating circuit | JP3875784 | 1984-03-02 | JPS60183568A | 1985-09-19 | MAEDA YASUE |
| PURPOSE:To obtain an underwater receiver which has a good S/N (underwater noise ratio to target sound) in a high frequency range by obtaining cardioid directivity by using a universal, inexpensive, and small-sized nondirectional receivers, resistance, capacitor, and operational amplifier. CONSTITUTION:The nondirectional receivers 2 and 3 are arranged vertically and linearly over and under a nondirectional receiver 1 at specific distance. The output of the nondirectional receiver 2 weighted by a weighting circuit 7a to generates an output 12 while passed through a +90 deg. phase shifter 4 and weighted by a weighting circuit 8a to obtain an output 11. Further, the output of the nondirectional receiver 1 is weighted by a weighting circuit 6 to obtain an output 13. The output of the nondirectional receiver 3, on the other hand, is passed through a -90 deg. phase shifter 5 and weighted by a weighting circuit 8b to obtain an output 15 and also weighted by a weighting circuit 7b to generate an output 14. Further, the outputs 11-15 are inputted to an adder 9 to obtain the output 16 of a directivity generating circuit. When a target sound arrives in a horizontal direction, in-phase and equal-level outputs are obtained from the nondirectional receivers 1-3. | ||||||
| 19 | Automatic tracking system for sonar | JP12791381 | 1981-08-15 | JPS5830681A | 1983-02-23 | KOHAMA SHIYUNICHI; MATSUMOTO TAKASHI; SUGASAWA NOBORU |
| PURPOSE:To enable continuation of tracking with a high stability by a method which comprising the phasing and square detection and integration of the output of a wave receiver, a differentiation and interpolation processing of bearing output waveforms obtained and detection of the peak point thereof. CONSTITUTION:The output of a wave receiver array 1 processed with a phasing device 2 and a square detector/integrator 3 to obtain a bearing output wave. The bearing output waveform undergoes a differentiation processing with a differentiation processing circuit 6 and then, sent to an interpolation processing circuit 4 for a interpolation processing. The output waveform is inputted to a peak detector 5 to detect the peak point thereof, which is tracked as target signal bearing. | ||||||
| 20 | 적응 수신 빔 집속 장치 및 방법 | KR1020110076504 | 2011-08-01 | KR101312309B1 | 2013-09-27 | 유양모; 강지운; 장진호; 송태경 |
| 본 발명은 적응 수신 빔 집속 장치에 관한 것으로서 영상점으로부터 반사된 초음파 신호를 수신하는 트랜스듀서; 수신된 초음파 신호의 지연시간을 계산하여, 수신된 초음파 신호의 채널별 지연옵셋을 수신된 초음파 신호에 적용하는 지연옵셋 적용부; 채널별로 지연시간이 보상된 초음파 신호를 합성하는 빔 합성부; 어퍼쳐를 복수의 부구경들로 나눈 후, 부구경별 CF 계수를 이용하여 합성된 초음파 신호에 적용될 전체 계수를 산출하는 계수 산출부; 및 산출된 전체 계수를 합성된 초음파 신호에 적용하는 계수 적용부를 포함하는 것을 특징으로 하며, 영상점 근처의 간섭점의 존재로 인해 영상점에서 반사된 수신신호에 간섭점에서 반사된 수신신호가 중첩되는 경우에 발생하는 오차를 줄일 수 있다.
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