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    Volume and tone control in direct digital speakers
    3.
    发明授权
    Volume and tone control in direct digital speakers 有权
    在直接数字扬声器音量和音调控制

    公开(公告)号：EP2033480B1

    公开(公告)日：2012-07-11

    申请号：EP07736361.2

    申请日：2007-05-21

    Applicant: Audio Pixels Ltd.

    Inventor： COHEN, Yuval ,  LEWIN, Daniel ,  KAPLAN, Shay

    IPC: H04R1/22 ,  H04R3/04

    CPC classification number: H04R1/005 ,  H04R1/227 ,  H04R3/04

    Abstract: A system that includes a direct digital speaker volume control device configured to be coupled to a direct digital speaker. The direct digital speaker include many pressure producing elements being adapted to generate a sound at a sound pressure level (SPL) and at a given frequency in response to an input signal, without using digital to analog converter. The direct digital speaker inherently exhibits a frequency response throughout its entire frequency range. The direct digital speaker volume control device includes a module for providing few filters each having a distinct cutoff frequency such that each filter exhibits no attenuation below its cutoff frequency and an attenuation response above the filter's cutoff frequency. And a selector for selecting one of the filters according to a selection criterion that depends on a desired volume and frequency of generated sound, and applying the filter to the input signal for generating a filtered signal that fed to the speaker.

    VOLUME AND TONE CONTROL IN DIRECT DIGITAL SPEAKERS
    6.
    发明公开
    VOLUME AND TONE CONTROL IN DIRECT DIGITAL SPEAKERS 有权
    在直接数字扬声器音量和音调控制

    公开(公告)号：EP2033480A2

    公开(公告)日：2009-03-11

    申请号：EP07736361.2

    申请日：2007-05-21

    Applicant: Audio Pixels Ltd.

    Inventor： COHEN, Yuval ,  LEWIN, Daniel ,  KAPLAN, Shay

    IPC: H04R1/22 ,  H04R3/04

    CPC classification number: H04R1/005 ,  H04R1/227 ,  H04R3/04

    Abstract: A system that includes a direct digital speaker volume control device configured to be coupled to a direct digital speaker. The direct digital speaker include many pressure producing elements being adapted to generate a sound at a sound pressure level (SPL) and at a given frequency in response to an input signal, without using digital to analog converter. The direct digital speaker inherently exhibits a frequency response throughout its entire frequency range. The direct digital speaker volume control device includes a module for providing few filters each having a distinct cutoff frequency such that each filter exhibits no attenuation below its cutoff frequency and an attenuation response above the filter's cutoff frequency. And a selector for selecting one of the filters according to a selection criterion that depends on a desired volume and frequency of generated sound, and applying the filter to the input signal for generating a filtered signal that fed to the speaker.

    APPARATUS AND METHODS FOR GENERATING PRESSURE WAVES
    7.
    发明公开
    APPARATUS AND METHODS FOR GENERATING PRESSURE WAVES 审中-公开
    器件和方法产生压力波的

    公开(公告)号：EP2025196A1

    公开(公告)日：2009-02-18

    申请号：EP07736362.0

    申请日：2007-05-21

    Applicant: Audio Pixels Ltd.

    Inventor： COHEN, Yuval ,  LEWIN, Danny ,  KAPLAN, Shay

    IPC: H04R1/40 ,  H04R9/04 ,  H02K33/16 ,  H02N13/00 ,  H02K7/10 ,  H02K16/00

    CPC classification number: H04R1/20 ,  B81B3/0021 ,  H02K7/10 ,  H02K16/00 ,  H02K33/16 ,  H02K2201/18 ,  H02N13/00 ,  H04R1/005 ,  H04R1/403 ,  H04R3/12

    Abstract: Actuator apparatus for generating a physical effect, at least one attribute of which corresponds to at least one characteristic of a digital input signal sampled periodically in accordance with a clock, the apparatus comprising at least one array of moving elements each constrained to travel alternately back and forth along a respective axis in response to an alternating electromagnetic force applied to the array of moving elements, at least one latch operative to selectively latch at least one subset of said moving elements in at least one latching position thereby to prevent the individual moving elements from responding to the electromagnetic force, an electromagnetic field control system operative to receive the clock and, accordingly, to control application of the electromagnetic force to the array of moving elements, and a latch controller operative to receive the digital input signal and to control the latch accordingly.

    APPARATUS AND METHODS FOR INDIVIDUAL ADDRESSING AND NOISE REDUCTION IN ACTUATOR ARRAYS
    10.
    发明公开
    APPARATUS AND METHODS FOR INDIVIDUAL ADDRESSING AND NOISE REDUCTION IN ACTUATOR ARRAYS 审中-公开
    设备和方法解决个人和降噪AT致动器组件

    公开(公告)号：EP2643982A1

    公开(公告)日：2013-10-02

    申请号：EP11810693.9

    申请日：2011-11-17

    Applicant: Audio Pixels Ltd.

    Inventor： ERIC, Andreas Haber ,  LEWIN, Daniel ,  KAPLAN, Shay ,  BEN SIMON, Meir ,  COHEN, Yuval

    IPC: H04R19/02 ,  H04R1/40

    CPC classification number: H04R19/02 ,  H02N1/006 ,  H04R1/403 ,  H04R3/06 ,  H04R3/12 ,  Y10T29/49117

    Abstract: Apparatus for generating a target physical effect, at least one attribute of which corresponds to at least one characteristic of a digital input signal sampled periodically, the apparatus comprising a multiplicity of electrostatic actuator elements, each comprising a moving element moving between first and second electrodes, the multiplicity of electrostatic actuator elements including Nr first subsets (R-subsets) of actuator elements and Nc second subsets (C-subsets) of actuator elements, wherein a first partitioning of the multiplicity of actuator elements yields the Nr first subsets (R-subsets) and a second partitioning of the multiplicity of actuator elements yields the Nc second subsets (C-subsets); a first plurality of Nr electrical connections (R-wires) interconnecting the moving elements of actuator elements in each R-subset, such that the moving element of any actuator element in each individual R-subset is electrically connected to the moving elements of all other actuator elements in the individual R- subset, and electrically isolated from the moving elements of all actuator elements not in the individual R-subset; a second plurality of Nc electrical connections (A-wires) interconnecting the first electrodes of actuator elements in each C-subset, such that the first electrode of any actuator element in each individual C-subset is electrically connected to the first electrode of all other actuator elements in the individual C-subset, and electrically isolated from all actuator elements not in the individual C-subset; a third plurality of Nc electrical connections (B-wires) interconnecting the second electrodes of actuator elements in each C-subset, such that the second electrode of any actuator element in each individual C-subset is electrically connected to the second electrode of all other actuator elements in the individual C-subset, and electrically isolated from all actuator elements not in the individual C-subset; and a controller electrically connected to the first, second and third pluralities of electrical connections, operative to receive a digital input signal, and to apply one of a predetermined, finite set of electric potentials to each of said electrical connections respectively, such that resulting movements of the moving elements together produce the desired physical effect.

    Abstract translation: 装置用于生成目标物理效应的至少一个属性，该属性的对应周期性地采样的数字输入信号的至少一个特征，所述装置包括静电致动器元件的多个，每个包括一个移动元件的第一和第二电极之间移动， 静电致动器元件，包括致动器元件的致动器元件和Nc个第二子集（C-子集）的任何第一子集（R-子集），worin致动器元件的多重性的第一分隔的多重性产生了数量的第一子集（R-子集 ）和致动器元件的多重性的第二分隔产生的Nc个第二子集（C-子集）; 互连在每个R子集致动器元件的移动元件没有电连接（R-线）的第一多个，检查的确在每个单独的R-子集中的任何致动器元件的移动元件被电连接到所有其他的移动元件 在单独的R-子集致动器元件，并从所有致动器元件在不单独的R-子集的移动元件电隔离; Nc个电连接（A-导线）互连在每个C子组致动器元件的所述第一电极的第二多个，检查的确在每个单独的C-子集中的任何致动器元件的第一电极电连接到所有其它的第一电极 在各个C-子集致动器元件，和电从所有致动器元件在不单个C-子集隔离; Nc个电连接（B-导线）互连在每个C子组致动器元件的第二电极的多个第三，检查的确在每个单独的C-子集中的任何致动器元件的第二电极电连接到所有其他的第二电极 在各个C-子集致动器元件，和电从所有致动器元件在不单个C-子集隔离; 并电连接到电连接的第一，第二和第三多个，可操作控制器，用于接收数字输入信号，并分别施加预定，有限集电势到每个所述电连接中的一个，检查没有得到的运动 所述移动元件一起产生期望的物理效应。

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