Shape memory alloy actuation apparatus
    1.
    发明授权
    Shape memory alloy actuation apparatus 有权
    形状记忆合金致动装置

    公开(公告)号:US09479699B2

    公开(公告)日:2016-10-25

    申请号:US13988034

    申请日:2011-11-15

    IPC分类号: H04N5/232 G03B3/10 F03G7/06

    摘要: An SMA actuation apparatus comprises a support structure, a movable element movably supported on the support structure and an arrangement of three or more SMA actuator wires mechanically connected between the support structure and the movable element. The SMA actuator wires have an interconnection at the movable element that electrically connects the group of SMA actuator wires together. This avoids the need to make a separate electrical connection to the movable element.

    摘要翻译: SMA致动装置包括支撑结构,可移动地支撑在支撑结构上的可移动元件以及机械连接在支撑结构和可移动元件之间的三个或更多个SMA致动器线的布置。 SMA致动器线在可移动元件处具有将该一组SMA致动器线电连接在一起的互连。 这避免了与可动元件分开的电连接的需要。

    METHOD AND APPARATUS TO CREATE A SOUND FIELD
    2.
    发明申请
    METHOD AND APPARATUS TO CREATE A SOUND FIELD 审中-公开
    创造声场的方法和设备

    公开(公告)号:US20090161880A1

    公开(公告)日:2009-06-25

    申请号:US12391375

    申请日:2009-02-24

    IPC分类号: H04R5/00

    摘要: The invention generally relates to a method and apparatus for taking an input signal, replicating it a number of times and modifying each of the replicas before routing them to respective output transducers such that a desired sound field is created. This sound field may comprise a directed beam, focused beam or a simulated origin. In a first aspect, delays are added to sound channels to remove the effects of different travelling distances. In a second aspect, a delay is added to a video signal to account for the delays added to the sound channels. In a third aspect, different window functions are applied to each channel to give improved flexibility of use. In a fourth aspect, a smaller extent of transducers is used top output high frequencies than are used to output low frequencies. An array having a larger density of transducers near the center is also provided. In a fifth aspect, a line of elongate transducers is provided to give good directivity in a plane. In a sixth aspect, sound beams are focused in front or behind surfaces to give different beam widths and simulated origins. In a seventh aspect, a camera is used to indicate where sound is directed.

    摘要翻译: 本发明一般涉及一种用于取得输入信号的方法和装置,在将它们复制到各自的输出换能器之前将其复制多次并修改每个复制品,使得产生期望的声场。 该声场可以包括定向光束,聚焦光束或模拟原点。 在第一方面,将声音添加到声道以消除不同移动距离的影响。 在第二方面,将延迟添加到视频信号以解释添加到声音通道的延迟。 在第三方面,将不同的窗口功能应用于每个通道以提供改进的使用灵活性。 在第四方面,使用较小程度的换能器用于比用于输出低频的顶部输出高频。 还提供了在中心附近具有较大密度的换能器的阵列。 在第五方面,提供一系列细长的换能器以在平面中给出良好的方向性。 在第六方面,声束聚焦在表面的前面或后面,以提供不同的光束宽度和模拟的来源。 在第七方面中,使用相机来指示声音的定向。

    SHAPE MEMORY ALLOY ACTUATION APPARATUS
    3.
    发明申请
    SHAPE MEMORY ALLOY ACTUATION APPARATUS 有权
    形状记忆合金执行装置

    公开(公告)号:US20130300880A1

    公开(公告)日:2013-11-14

    申请号:US13988034

    申请日:2011-11-15

    IPC分类号: H04N5/232

    摘要: An SMA actuation apparatus comprises a support structure, a movable element movably supported on the support structure and an arrangement of three or more SMA actuator wires mechanically connected between the support structure and the movable element. The SMA actuator wires have an interconnection at the movable element that electrically connects the group of SMA actuator wires together. This avoids the need to make a separate electrical connection to the movable element.

    摘要翻译: SMA致动装置包括支撑结构,可移动地支撑在支撑结构上的可移动元件以及机械连接在支撑结构和可移动元件之间的三个或更多个SMA致动器线的布置。 SMA致动器线在可移动元件处具有将该一组SMA致动器线电连接在一起的互连。 这避免了与可动元件分开的电连接的需要。

    Method and apparatus to create a sound field
    4.
    发明授权
    Method and apparatus to create a sound field 有权
    创建声场的方法和装置

    公开(公告)号:US07515719B2

    公开(公告)日:2009-04-07

    申请号:US10471451

    申请日:2002-03-27

    IPC分类号: H04R5/00 H04R5/02

    摘要: The invention generally relates to a method and apparatus for taking an input signal, replicating it a number of times and modifying each of the replicas before routing them to respective output transducers such that a desired sound field is created. This sound field may comprise a directed beam, focussed beam or a simulated origin. In a first aspect, delays are added to sound channels to remove the effects of different travelling distances. In a second aspect, a delay is added to a video signal to account for the delays added to the sound channels. In a third aspect, different window functions are applied to each channel to give improved flexibility of use. In a fourth aspect, a smaller extent of transducers is used top output high frequencies than are used to output low frequencies. An array having a larger density of transducers near the centre is also provided. In a fifth aspect, a line of elongate transducers is provided to give good directivity in a plane. In a sixth aspect, sound beams are focussed in front or behind surfaces to give different beam widths and simulated origins. In a seventh aspect, a camera is used to indicate where sound is directed.

    摘要翻译: 本发明一般涉及一种用于取得输入信号的方法和装置,在将它们复制到各自的输出换能器之前将其复制多次并修改每个复制品,使得产生期望的声场。 该声场可以包括定向光束,聚焦光束或模拟原点。 在第一方面,将声音添加到声道以消除不同移动距离的影响。 在第二方面,将延迟添加到视频信号以解释添加到声音通道的延迟。 在第三方面,将不同的窗口功能应用于每个通道以提供改进的使用灵活性。 在第四方面,使用较小程度的换能器用于比用于输出低频的顶部输出高频。 还提供了在中心附近具有较大密度的换能器的阵列。 在第五方面,提供一系列细长的换能器以在平面中给出良好的方向性。 在第六方面,声束聚焦在表面的前面或后面,以提供不同的光束宽度和模拟的起点。 在第七方面中,使用相机来指示声音的定向。