-
公开(公告)号：US11887575B2
公开(公告)日：2024-01-30
申请号：US16006695
申请日：2018-06-12
发明人： Donald C. D. Chang , Steve K. Chen
IPC分类号： G10K11/178 , G01S19/21 , G10K11/34
CPC分类号： G10K11/17857 , G01S19/215 , G10K11/34 , G10K11/341 , G10K2210/12 , G10K2210/128 , G10K2210/3215
摘要： A system for generating and injecting acoustic interference signals to mitigate undesired acoustic noise over a target zone. M pickup sensors pick up acoustic noise signals from one or more noise sources in real time and generate M noise signals, M>1. A beam forming network includes M acoustic beam forming modules to process the M noise signals respectively and generate N acoustic interference signals. N acoustic injectors condition, amplify and inject the N acoustic interference signals over the target zone, N>1. Each of the M acoustic beam forming modules includes a 1-to-N distribution network to transform a respective one of the M noise signals into N signals, and N finite-impulse-response filters to perform amplitude and phase weighting on the respective N signals and generate N intermediate signals which are combined respectively with corresponding intermediate signals generated by remaining M−1 acoustic beam forming modules to generate the N acoustic interference signals.
-
公开(公告)号：US11857811B2
公开(公告)日：2024-01-02
申请号：US17650209
申请日：2022-02-07
IPC分类号： A61N7/00 , G16H20/40 , G16H40/67 , G16H50/20 , G06N20/00 , A61B5/00 , A61B7/00 , A61B8/08 , A61B8/00 , G10K11/34
CPC分类号： A61N7/00 , A61B5/4064 , A61B5/4094 , A61B7/001 , A61B8/0808 , A61B8/4209 , A61B8/485 , G06N20/00 , G10K11/341 , G16H20/40 , G16H40/67 , G16H50/20 , A61B5/6803 , A61N2007/0026 , A61N2007/0052
摘要： Systems and methods are disclosed related to using acoustic waves to detect neural activity in a brain and/or localize the neural activity in the brain. Sensors positioned outside of a skull encasing the brain can detect acoustic waves associated with the neural activity in the brain. From output signals of the sensors, a particular type of neural activity (e.g., a seizure) can be detected. A location of the neural activity can be determined based on outputs of the sensors. In some embodiments, the ultrasound energy can be applied to the location of the neural activity in response to detecting the neural activity.
-
公开(公告)号：US20230410785A1
公开(公告)日：2023-12-21
申请号：US18253875
申请日：2020-12-02
发明人： Naoki Miura , Hiroaki Taguchi , Hideyuki Nosaka , Takeshi Komatsu
CPC分类号： G10K15/04 , G10K11/341 , G10K9/12
摘要： A sound wave generator is configured to generate ultrasonic waves having a predetermined frequency that chases away vermin. The sound wave generator includes a power supply, a switch, an oscillation circuit, and a speaker. The power supply includes a battery that is a DC power supply and outputs DC power for generating sound waves. The switch is operated by a user of the sound wave generator to switch between supply and non-supply of power from the power supply to the oscillation circuit. When the switch is turned on, the oscillation circuit operates with DC power output from the power supply and oscillates an electrical signal having a predetermined frequency. An organic transistor is used in the oscillation circuit. The speaker converts the electrical signal oscillated by the oscillation circuit into sound waves and outputs the sound waves.
-
公开(公告)号：US20230395058A1
公开(公告)日：2023-12-07
申请号：US18044975
申请日：2021-09-02
IPC分类号： G10K11/34 , G10K11/178
CPC分类号： G10K11/341 , G10K11/1787
摘要： Electronic device that allows controlling the route followed by an audio signal from one or more Audio Signal Input Sources through 2 or more Effects Units which modify said signal, and said signal is delivered to 1 or more Outputs, which allows selecting from which input the audio signal is originated, through which effects units is passed, in what order it does so, and to which outputs it is delivered, through a matrix of high-speed signal switching devices (analog or digital) with features of an audio signal that interconnects all possible combinations of Inputs and Outputs between ports to which Audio Signal Input Sources, External Effects Units and Outputs are connected, which is controlled by a digital device that allows the activation of the possible combinations at the User's choice; It further allows storing the desired combinations in a memory unit to be later retrieved and activated, through various embodiments of use such as the direct manipulation of the Device with physical controls, through an application within external wireless devices and/or compatible with MIDI.
-
公开(公告)号：US20180217244A1
公开(公告)日：2018-08-02
申请号：US15280786
申请日：2016-09-29
CPC分类号： G01S7/524 , G01S7/521 , G01S7/523 , G01S7/60 , G01S7/6263 , G01S7/6272 , G01S7/6281 , G01S7/629 , G01S15/10 , G01S15/42 , G01S15/89 , G01S15/96 , G10K11/341
摘要： A frequency steered sonar element comprises a transducer element and a grating element. The transducer element presents a longitudinal axis and is configured to receive a transmit electronic signal and generate an acoustic wave with a frequency component corresponding to a frequency component of the transmit electronic signal. The grating element presents a longitudinal axis and is oriented such that a longitudinal axis of the grating element and a longitudinal axis of the transducer element form an acute angle. The grating element includes a first surface and an opposing second surface. One or more of the surfaces includes one or more grooves distributed thereon, the one or more grooves including first and second facets. The grating element is configured to emit a sonar beam in an angular direction which varies according to the frequency component of the acoustic wave.
-
公开(公告)号：US10006998B2
公开(公告)日：2018-06-26
申请号：US14654416
申请日：2014-01-22
发明人： Marco Crocco , Andrea Trucco , Vittorio Murino
CPC分类号： G01S15/89 , G10K11/341 , H04R1/406 , H04R3/005 , H04R2201/401 , H04R2201/405
摘要： A method of configuring planar transducer arrays for broadband signal processing by 3D beamforming, wherein a superdirective beamforming technique for low-frequency signal components is combined with a sparse and aperiodic array pattern for high-frequency components in a predetermined frequency range, and wherein the positions of the individual transducers at the aperture of the array and the FIR filter coefficients are further optimized in parallel, by a hybrid iterative process including an analytical calculus for determining the FIR filter coefficients and a stochastic calculus for determining the transducer positions at the aperture of the planar transducer arrays, by minimization of a cost function.
-
公开(公告)号：US20180011193A1
公开(公告)日：2018-01-11
申请号：US15544778
申请日：2016-01-22
申请人： DALHOUSIE UNIVERSITY
CPC分类号： G01S15/8918 , A61B8/12 , A61B8/14 , A61B8/4483 , A61B8/5207 , G01S7/52028 , G01S7/52034 , G01S7/5208 , G01S15/8915 , G10K11/341
摘要： The present disclosure provides systems and methods for ultrasound imaging using a modified variable sampling beamforming technique. Unlike conventional methods of variable sampling beamforming, in which in-phase and quadrature samples are obtained for each pixel location, in various example embodiments of the present disclosure, the pixel locations are quadrature-spaced such that for each 5 sample point, an adjacent sample point along an A-line is employed as the quadrature sample. The samples at each array element may be triggered according to the time of flight between a first pixel location and the location of the array element, such that successive samples, corresponding to successive pixel locations along the selected A-line, are obtained such that adjacent samples are spaced by a 10 time interval corresponding to a quarter of an odd number of wavelenghths of the beamformed transmit pulse, and such that only one sample is acquired per pixel.
-
8.发明授权Methods circuits devices systems and associated computer executable code for acquiring acoustic signals 有权方法电路设备系统和用于获取声信号的相关联的计算机可执行代码公开(公告)号：US09596554B2
公开(公告)日：2017-03-14
申请号：US14721235
申请日：2015-05-26
申请人： Vladimir Sherman
发明人： Vladimir Sherman
IPC分类号： H04R3/00 , H04R1/02 , H04R5/00 , H04R25/00 , H04R5/02 , H04R29/00 , G10K11/16 , G01S3/80 , H04R5/033 , G10K11/34 , G02C11/06 , H04R1/10 , H04R1/40 , G02C11/00
CPC分类号： H04R3/005 , G01S3/8006 , G02C11/06 , G02C11/10 , G06F3/013 , G06F3/165 , G10K11/16 , G10K11/341 , G10L2021/02166 , H04R1/028 , H04R1/1083 , H04R1/406 , H04R3/12 , H04R5/033 , H04R25/407 , H04R25/43 , H04R29/005 , H04R2201/405 , H04R2225/43 , H04R2410/01 , H04R2430/21 , H04R2499/15
摘要： The present invention includes methods, circuits, devices, systems and associated computer executable code for acquiring, processing and rendering acoustic signals. According to some embodiments, one or more direction specific audio signals may be generated using a microphone array comprising two or more microphones and an audio stream generator. The audio stream generator may receive a direction parameter from an optical tracking system. There may be provided an audio rendering system adapted to normalize and/or balance acoustic signals acquired from a soundscape.
摘要翻译： 本发明包括用于获取，处理和呈现声信号的方法，电路，设备，系统和相关联的计算机可执行代码。 根据一些实施例，可以使用包括两个或多个麦克风和音频流发生器的麦克风阵列来生成一个或多个方向特定音频信号。 音频流发生器可以从光学跟踪系统接收方向参数。 可以提供适于使从声景获取的声信号归一化和/或平衡的音频再现系统。
-
公开(公告)号：USRE46185E1
公开(公告)日：2016-10-25
申请号：US13789539
申请日：2013-03-07
发明人： James Mehi , Ronald E. Daigle , Laurence C. Brasfield , Brian Starkoski , Jerrold Wen , Kai Wen Liu , Lauren S. Pflugrath , F. Stuart Foster , Desmond Hirson
CPC分类号： G01S7/52095 , A61B8/56 , A61B8/565 , G01S7/52017 , G01S7/5202 , G01S7/52034 , G01S7/52088 , G01S7/524 , G01S7/526 , G01S15/8915 , G01S15/8927 , G01S15/8956 , G01S15/8959 , G01S15/8997 , G10K11/341 , G10K11/346
摘要： A system for acquiring an ultrasound signal comprises a signal processing unit adapted for acquiring a received ultrasound signal from an ultrasound transducer having a plurality of elements. The system is adapted to receive ultrasound signals having a frequency of at least 20 megahertz (MHz) with a transducer having a field of view of at least 5.0 millimeters (mm) at a frame rate of at least 20 frames per second (fps). The signal processing can further produce an ultrasound image from the acquired ultrasound signal. The transducer can be a linear array transducer, a phased array transducer, a two-dimensional (2-D) array transducer, or a curved array transducer.
摘要翻译： 一种用于获取超声信号的系统包括适于从具有多个元件的超声波换能器获取接收到的超声信号的信号处理单元。 该系统适于以至少为20帧/秒（fps）的帧速率的具有至少5.0毫米（mm）视野的换能器接收频率至少为20兆赫兹（MHz）的超声信号。 信号处理可以从所获取的超声信号进一步产生超声图像。 换能器可以是线性阵列换能器，相控阵转换器，二维（2-D）阵列换能器或弯曲阵列换能器。
-
公开(公告)号：US20160218563A1
公开(公告)日：2016-07-28
申请号：US15087858
申请日：2016-03-31
申请人： uBeam Inc.
发明人： Meredith Perry
CPC分类号： H02J50/15 , B60L11/182 , B60L11/1838 , G10K11/18 , G10K11/26 , G10K11/341 , G10K11/346 , H01F38/14 , H02J5/005 , H02J7/0052 , H02J7/025 , H02J17/00 , H02J50/40 , H02J50/80 , H03C3/02 , H03C5/00 , H04B11/00 , H04R17/00 , H04R19/00 , H04R23/00 , Y02E60/12 , Y02T10/7005 , Y02T10/7072 , Y02T90/121 , Y02T90/122 , Y02T90/128 , Y02T90/14 , Y02T90/16 , Y02T90/163 , Y02T90/168 , Y04S30/12
摘要： A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.
-
-
-
-
-
-
-
-
-
搜索结果
406 条记录 (耗时 0.034 秒)
