Microfabricated capacitive ultrasonic transducer
    1.
    发明授权
    Microfabricated capacitive ultrasonic transducer 有权
    微型电容式超声波换能器

    公开(公告)号:US07800189B2

    公开(公告)日:2010-09-21

    申请号:US10877128

    申请日:2004-06-25

    IPC分类号: H01L29/72

    CPC分类号: B06B1/0292

    摘要: The invention relates to a microfabricated capacitive ultrasonic transducer (20) comprising at least one thin plate (21), provided with a metallization (24), suspended over a conductive substrate (23) through supporting elements integrally coupled to the conductive substrate (23), the conductive substrate (23) forming one or more electrodes corresponding to said at least one thin plate (21), characterized in that said supporting elements comprise an ordered arrangement of columns or “pillars” (22) to which the thin plate (21) is integrally coupled, whereby the pillars (22) operate as substantially punctiform constraints. The invention further relates to a surface micro-mechanical process for fabricating such microfabricated capacitive ultrasonic transducers (20).

    摘要翻译: 本发明涉及一种微制造的电容式超声波换能器(20),其包括设置有金属化(24)的至少一个薄板(21),该薄板通过与导电基板(23)整体连接的支撑元件悬挂在导电基板(23)上, ,所述导电基板(23)形成对应于所述至少一个薄板(21)的一个或多个电极,其特征在于,所述支撑元件包括柱或“柱”(22)的有序排列,薄板(21) )一体地联接,由此柱(22)作为基本上点状的约束而起作用。 本发明还涉及一种用于制造这种微制电容式超声换能器(20)的表面微机械工艺。

    METHOD FOR LOCALIZING REMOTE DEVICES, USING ACOUSTICAL AND ELECTROMAGNETIC WAVES
    2.
    发明申请
    METHOD FOR LOCALIZING REMOTE DEVICES, USING ACOUSTICAL AND ELECTROMAGNETIC WAVES 有权
    使用声学和电磁波定位远程设备的方法

    公开(公告)号:US20100061186A1

    公开(公告)日:2010-03-11

    申请号:US12514847

    申请日:2007-11-28

    IPC分类号: G01S5/30 G06F15/00 G01S3/80

    CPC分类号: G01S5/30 G01S11/16

    摘要: Localization of remote devices by: the emission of pulses from acoustic transmitters, whose wavefronts propagate in the space region occupied by the remote devices and finally reach them; the emission of radiofrequency pulses from each remote device at the time of detection of the wavefront by an on-board microphone; the acquisition, by a radio base, of the radiofrequency signals propagating from the remote devices, to evaluate the arrival time delays proportional to the distance between the i-th acoustic source and the j-th remote device; the formation of a reception vector for each emission by the i-th source, this vector having a maximum length M equal to the number of remote devices and consisting of the sequence of distances obtained as the product of the reception times and the estimated sound velocity. These steps are repeated for all acoustic sources, to form N+1 reception vectors, to calculate the position of the device by solving derived matrix equations.

    摘要翻译: 通过以下方式定位远程设备:声波发射器的脉冲发射,其波前在远程设备占用的空间区域中传播,最后到达它们; 在通过车载麦克风检测波前时从每个远程设备发射射频脉冲; 通过无线电基站获取从远程设备传播的射频信号,以评估与第i个声源和第j个远程设备之间的距离成比例的到达时间延迟; 形成由第i个源发送的每个发射的接收矢量,该矢量的最大长度M等于远程设备的数量,并且由作为接收时间和估计声速的乘积获得的距离序列组成 。 对所有声源重复这些步骤,形成N + 1个接收矢量,通过求解导出的矩阵方程来计算器件的位置。

    Microfabricated capacitive ultrasonic transducer and related surface micromechanical process of fabrication
    3.
    发明申请
    Microfabricated capacitive ultrasonic transducer and related surface micromechanical process of fabrication 有权
    微型电容式超声波换能器及相关表面微机械制造工艺

    公开(公告)号:US20050018536A1

    公开(公告)日:2005-01-27

    申请号:US10877128

    申请日:2004-06-25

    CPC分类号: B06B1/0292

    摘要: The invention relates to a microfabricated capacitive ultrasonic transducer (20) comprising at least one thin plate (21), provided with a metallization (24), suspended over a conductive substrate (23) through supporting elements integrally coupled to the conductive substrate (23), the conductive substrate (23) forming one or more electrodes corresponding to said at least one thin plate (21), characterised in that said supporting elements comprise an ordered arrangement of columns or “pillars” (22) to which the thin plate (21) is integrally coupled, whereby the pillars (22) operate as substantially punctiform constraints. The invention further relates to a surface micro-mechanical process for fabricating such microfabricated capacitive ultrasonic transducers (20).

    摘要翻译: 本发明涉及一种微制造的电容式超声波换能器(20),其包括设置有金属化(24)的至少一个薄板(21),该薄板通过与导电基板(23)整体连接的支撑元件悬挂在导电基板(23)上, ,所述导电基板(23)形成对应于所述至少一个薄板(21)的一个或多个电极,其特征在于,所述支撑元件包括柱或“柱”(22)的有序排列,薄板(21) )一体地联接,由此柱(22)作为基本上点状的约束而起作用。 本发明还涉及一种用于制造这种微制电容式超声换能器(20)的表面微机械工艺。

    Method for localizing remote devices, using acoustical and electromagnetic waves
    4.
    发明授权
    Method for localizing remote devices, using acoustical and electromagnetic waves 有权
    使用声学和电磁波对远程设备进行本地化的方法

    公开(公告)号:US08089827B2

    公开(公告)日:2012-01-03

    申请号:US12514847

    申请日:2007-11-28

    IPC分类号: G01S3/80

    CPC分类号: G01S5/30 G01S11/16

    摘要: Localization of remote devices by: the emission of pulses from acoustic transmitters, whose wavefronts propagate in the space region occupied by the remote devices and finally reach them; the emission of radiofrequency pulses from each remote device at the time of detection of the wavefront by an on-board microphone; the acquisition, by a radio base, of the radiofrequency signals propagating from the remote devices, to evaluate the arrival time delays proportional to the distance between the i-th acoustic source and the j-th remote device; the formation of a reception vector for each emission by the i-th source, this vector having a maximum length M equal to the number of remote devices and consisting of the sequence of distances obtained as the product of the reception times and the estimated sound velocity. These steps are repeated for all acoustic sources, to form N+1 reception vectors, to calculate the position of the device by solving derived matrix equations.

    摘要翻译: 通过以下方式定位远程设备:声波发射器的脉冲发射,其波前在远程设备占用的空间区域中传播,最后到达它们; 在通过车载麦克风检测波前时从每个远程设备发射射频脉冲; 通过无线电基站获取从远程设备传播的射频信号,以评估与第i个声源和第j个远程设备之间的距离成比例的到达时间延迟; 形成由第i个源发送的每个发射的接收矢量,该矢量的最大长度M等于远程设备的数量,并且由作为接收时间和估计声速的乘积获得的距离序列组成 。 对所有声源重复这些步骤,形成N + 1个接收矢量,通过求解导出的矩阵方程来计算器件的位置。