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    • 11. 发明授权
    • Electromechanical transducer
    • 机电换能器
    • US08787117B2
    • 2014-07-22
    • US13566308
    • 2012-08-03
    • Atsushi Kandori
    • Atsushi Kandori
    • G03B42/06
    • H04R1/00B06B1/0207B06B1/0292B06B2201/20B06B2201/51
    • An electromechanical transducer according to an embodiment of the present invention is capable of selectively performing a transmitting and receiving operation by using elements of different shapes. The electromechanical transducer has a plurality of cells, each of which has a vibrating film including two electrodes provided with a gap therebetween, two driving and detecting units, a potential difference setter, and a switch. Each of the driving and detecting units implements a transmitting and/or a receiving function. A first or second element includes first or second electrodes which are electrically connected and further connected to the common first or second driving and detecting unit, respectively. The potential difference setter sets a predetermined potential difference between the reference potentials of the first and second driving and detecting units, respectively, and the switch switches between the first and second driving and detecting units to perform the transmitting and receiving operation.
    • 根据本发明的实施例的机电换能器能够通过使用不同形状的元件选择性地执行发送和接收操作。 机电换能器具有多个单元,每个单元具有包括设置有间隙的两个电极的振动膜,两个驱动和检测单元,电位差设定器和开关。 每个驱动和检测单元实现发送和/或接收功能。 第一或第二元件包括分别电连接并进一步连接到公共第一或第二驱动和检测单元的第一或第二电极。 电位差设定器分别设定第一和第二驱动和检测单元的参考电位与第一和第二驱动和检测单元之间的开关开关之间的预定电位差,以执行发送和接收操作。
    • 18. 发明授权
    • Hard real-time adaptive waveform synthesis and evolution
    • 硬实时自适应波形合成与演化
    • US07623410B1
    • 2009-11-24
    • US11691080
    • 2007-03-26
    • Stuart Harvey Rubin
    • Stuart Harvey Rubin
    • G03B42/06
    • G03B42/06
    • A method for hard real-time adaptive wave modulation, comprising: populating a case base with waveform pairs, each waveform pair comprising a primary waveform, and a secondary waveform, wherein the primary waveform induces the secondary waveform; synthesizing a known target waveform s(t) by selecting waveform pairs from the case base such that the expression ∥s(t)−g∥2 is minimized, where g is the secondary waveform; and mutating the primary waveforms for each waveform pair based on a normal distribution until ∥s(t)−g′∥2
    • 一种用于硬实时自适应波调制的方法,包括:用波形对填充壳体基座,每个波形对包括主波形和次波形,其中主波形引起次波形; 通过从情况基中选择波形对来合成已知目标波形s(t),使得表达式‖s(t)-g‖2最小化,其中g是次级波形; 并且基于正态分布对每个波形对的主波形进行突变,直到∥s(t)-g'‖2<‖s(t)-g‖2其中g'是由突变主波形引起的新的次级波形。
    • 20. 发明授权
    • Producing amplitude values for controlling pixel illumination on a sonar display
    • 产生用于控制声纳显示器上的像素照明的振幅值
    • US07212466B2
    • 2007-05-01
    • US10891655
    • 2004-07-15
    • Douglas James Wilson
    • Douglas James Wilson
    • G03B42/06
    • G01S7/56G01S7/53G01S15/89G01S15/96
    • A method and apparatus for producing an amplitude value for use in controlling illumination of a pixel on a display, in response to a sampled sonar signal produced by an element of a sonar array. A pixel time associated with the pixel is found, the pixel time representing a time required for sound to travel a distance represented by the pixel, according to a range of distance to be viewed on the display. A sample point of the sampled sonar signal is then found, the sample point having a sample time nearest the pixel time. A delay value associated with the pixel is then found, the delay value including an array element delay value. A representation of a synthesized waveform is then produced, in response to the sonar signal, the representation comprising a plurality of sample points coinciding in time with the sample points of the sonar signal. An amplitude value representing an amplitude of the synthesized waveform at a time corresponding to the pixel time is then produced by finding an amplitude value of the waveform at a time value corresponding to the sum of the sample time and the delay value. The amplitude value is then made available for use in illuminating the pixel.
    • 响应于由声纳阵列的元件产生的采样声纳信号,产生用于控制显示器上的像素的照明的振幅值的方法和装置。 找到与像素相关联的像素时间,像素时间表示声音根据在显示器上观看的距离范围来传播由像素表示的距离所需的时间。 然后找到采样声纳信号的采样点,采样点的采样时间最接近像素时间。 然后找到与像素相关联的延迟值,延迟值包括数组元素延迟值。 然后,响应于声纳信号产生合成波形的表示,所述表示包括与声纳信号的采样点在时间上重合的多个采样点。 然后,通过在与采样时间和延迟值的和对应的时间值处找到波形的振幅值来产生表示在与像素时间对应的时间处的合成波形的振幅的振幅值。 然后振幅值可用于照亮像素。