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    VOLUME AND TONE CONTROL IN DIRECT DIGITAL SPEAKERS
    33.
    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
    34.
    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.

    IMPROVED SPEAKER APPARATUS AND METHODS USEFUL IN CONJUCTION THEREWITH
    35.
    发明公开
    IMPROVED SPEAKER APPARATUS AND METHODS USEFUL IN CONJUCTION THEREWITH 审中-公开

    公开(公告)号：EP3525483A1

    公开(公告)日：2019-08-14

    申请号：EP19161414.8

    申请日：2008-11-20

    Applicant: Audio Pixels Ltd.

    Inventor： COHEN, Yuval ,  LEWIN, Daniel ,  KAPLAN, Shay ,  SROMIN, Alex ,  MEIR, Ben Simon

    IPC: H04R1/40 ,  H04R3/12 ,  H02K41/03 ,  H02N13/00

    Abstract: An actuator array for generating sound, the actuator array comprising at least one actuator device, the at least one actuator device including:
    (a) a first latching electrode (4010) and, optionally, a second latching electrode (4050);
    (b) a flexure (4030) interposed between the first and second electrodes (4010, 4050), the flexure (4030) comprising one or more flexible elements peripheral to and integrally formed with a central portion, the central portion being configured to travel back and forth along a respective axis towards the first and second electrodes (4010, 4050) in response to an electrostatic force generable by applying a voltage between the first and second electrodes (4010, 4050) and the flexure (4030);
    wherein the first and second electrodes (4010, 4050) comprise partial annular openings facing the peripheral flexible elements of the flexure (4030).

    A SYSTEM, A METHOD AND A COMPUTER PROGRAM PRODUCT FOR CONTROLLING A GROUP OF ACTUATOR ARRAYS FOR PRODUCING A PHYSICAL EFFECT
    39.
    发明公开
    A SYSTEM, A METHOD AND A COMPUTER PROGRAM PRODUCT FOR CONTROLLING A GROUP OF ACTUATOR ARRAYS FOR PRODUCING A PHYSICAL EFFECT 有权
    系统，方法和计算机程序产品用于控制致动器阵列的一组用于生成物理效应

    公开(公告)号：EP2856769A1

    公开(公告)日：2015-04-08

    申请号：EP13729476.5

    申请日：2013-05-22

    Applicant: Audio Pixels Ltd.

    Inventor： LEWIN, Daniel ,  COHEN, Yuval ,  HABER, Eric Andreas ,  KAPLAN, Shay ,  BEN SIMON, Meir ,  ZACHER, Raanan

    IPC: H04R1/00

    CPC classification number: G05B15/02 ,  H04R1/005

    Abstract: A system which controls a group of multiple arrays of actuator elements, each of the actuator elements including a moving element which moves between a first and a second extreme positions; the system including: a controller, configured to generate control commands for at least one array of the multiple arrays in each individual cycle out of a series of sampling cycles, based on obtained information; and (b) an interface configured to transfer the control commands to the at least one array, thereby resulting in releasing from the first extreme position during the intended cycle of at least one moving element that is included in the at least one array; wherein release of all moving elements of at least one restrained array out of the multiple arrays is prevented during the intended cycle.

    Abstract translation: 哪个控制一组致动器元件，每一个都包括移动元件，其第一和第二极限位置之间移动致动器元件的多个阵列的系统; 该系统包括：控制器，配置为生成用于所述多个阵列中的至少一个阵列中的每个单独的循环了一系列采样周期，基于所获得的信息的控制命令; 和（b）到接口，配置为控制命令传送到所述至少一个阵列，由此在至少一个移动元件的预定周期期间从所述第一极限位置释放并包括所述至少一个阵列中得到的; 至少一个约束阵列的所有移动元件出多个阵列的worin释放预定循环期间被阻止。

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