Forced acoustic dipole and forced acoustic multipole array using the same
    21.
    发明授权
    Forced acoustic dipole and forced acoustic multipole array using the same 有权
    强迫声偶极子和强迫声多极阵列使用相同

    公开(公告)号:US08031558B2

    公开(公告)日:2011-10-04

    申请号:US12473214

    申请日:2009-05-27

    IPC分类号: H04B1/02

    CPC分类号: H04R1/403

    摘要: Provided is a forced acoustic dipole capable of regulating phases and acoustic pressures of first and second acoustic signals output from first and second pole speakers to freely steer the direction of an acoustic lobe. In addition, a forced acoustic multipole array is constituted by a plurality of forced acoustic dipoles. When the phases and acoustic pressures of the first and second acoustic signals output from the forced acoustic dipoles are regulated to steer an acoustic lobe in a specific direction, sound can be heard from a desired direction only without disturbing others.

    摘要翻译: 提供了一种能够调节从第一和第二极扬声器输出的第一和第二声信号的相位和声压以自由地引导声波瓣的方向的强制声偶极子。 此外,强制声音多极阵列由多个强制声学偶极子构成。 当从强制声学偶极子输出的第一和第二声信号的相位和声压被调节以在特定方向上引导声波波瓣时,只能从期望的方向听到声音,而不会扰乱其它声音。

    SEMICONDUCTOR GAS SENSOR HAVING LOW POWER CONSUMPTION
    22.
    发明申请
    SEMICONDUCTOR GAS SENSOR HAVING LOW POWER CONSUMPTION 审中-公开
    具有低功耗的半导体气体传感器

    公开(公告)号:US20110138882A1

    公开(公告)日:2011-06-16

    申请号:US12965433

    申请日:2010-12-10

    CPC分类号: G01N27/12

    摘要: Provided are a structure and operating method of a semiconductor gas sensor having low power consumption. The semiconductor gas sensor is adapted to adsorb gas to a low-dimensional semiconductor nanomaterial at room temperature, output a change in resistance of the low-dimensional semiconductor nanomaterial, apply power to a heater, desorb the gas adsorbed to the low-dimensional semiconductor nanomaterial, and return the resistance of the low-dimensional semiconductor nanomaterial back to initial resistance. The semiconductor gas sensor senses the gas at room temperature using the low-dimensional semiconductor nanomaterial having a high-sensitivity characteristic at room temperature, and drives the heater only when the adsorbed gas is desorbed. Thereby, it is possible to improve a gas sensing characteristic, reduce power consumption, and provide a rapid response speed.

    摘要翻译: 提供具有低功耗的半导体气体传感器的结构和操作方法。 半导体气体传感器适于在室温下将气体吸附到低维半导体纳米材料上,输出低维半导体纳米材料的电阻变化,向加热器施加电力,解吸吸附在低维半导体纳米材料上的气体 ,并将低维半导体纳米材料的电阻恢复到初始电阻。 半导体气体传感器使用在室温下具有高灵敏度特性的低维半导体纳米材料在室温下感测气体,仅在吸附气体解吸时驱动加热器。 由此,能够提高气体感测特性,降低功耗,提供快速的响应速度。

    APPARATUS FOR COLLECTING ENVIRONMENTAL DATA AND METHOD OF MONITORING ENVIRONMENT IN REAL TIME
    26.
    发明申请
    APPARATUS FOR COLLECTING ENVIRONMENTAL DATA AND METHOD OF MONITORING ENVIRONMENT IN REAL TIME 失效
    收集环境数据的设备和实时监测环境的方法

    公开(公告)号:US20090061772A1

    公开(公告)日:2009-03-05

    申请号:US12195176

    申请日:2008-08-20

    IPC分类号: H04M1/00 H04B7/00 G08B21/00

    摘要: Provided are an apparatus for collecting environmental data and a method of monitoring an environment in real time. The apparatus for collecting environmental data includes a receiver for receiving an environmental data collection command from outside, a headset controller for interpreting the environmental data collection command received from the receiver, and distinguishing an audio signal received from outside from the environmental data collection command, the environment sensor unit for collecting environmental data according to the environmental data collection command interpreted from the headset controller, and a transmitter for transmitting the environmental data collected by the environment sensor unit.

    摘要翻译: 提供了一种用于收集环境数据的装置和实时监测环境的方法。 用于收集环境数据的装置包括用于从外部接收环境数据收集命令的接收器,用于解释从接收器接收的环境数据收集命令的耳机控制器,并且将从外部接收的音频信号与环境数据收集命令区分开, 环境传感器单元,用于根据从耳机控制器解释的环境数据收集命令收集环境数据;以及发射器,用于发送由环境传感器单元收集的环境数据。

    CONDENSER MICROPHONE HAVING FLEXURE HINGE DIAPHRAGM AND METHOD OF MANUFACTURING THE SAME
    27.
    发明申请
    CONDENSER MICROPHONE HAVING FLEXURE HINGE DIAPHRAGM AND METHOD OF MANUFACTURING THE SAME 失效
    具有挠性铰链膜片的冷凝器麦克风及其制造方法

    公开(公告)号:US20080137884A1

    公开(公告)日:2008-06-12

    申请号:US11875996

    申请日:2007-10-22

    IPC分类号: H04R25/00 H01L21/64

    摘要: A micromini condenser microphone having a flexure hinge-shaped upper diaphragm and a back plate, and a method of manufacturing the same are provided.The method includes the steps of: forming a lower silicon layer and a first insulating layer; forming an upper silicon layer to be used as a back plate on the first insulating layer; forming a plurality of sound holes by patterning the upper silicon layer; forming a second insulating layer on the upper silicon layer; forming a conductive layer on the upper silicon layer having the sound holes, and forming a passivation layer on the conductive layer; forming a sacrificial layer on the passivation layer; depositing a diaphragm on the sacrificial layer, and forming a plurality of air holes passing through the diaphragm; forming electrode pads on the passivation layer and a region of the diaphragm; and etching the sacrificial layer, the passivation layer, the conductive layer, the upper silicon layer, the first insulating layer and the lower silicon layer to form an air gap between the diaphragm and the upper silicon layer.Consequently, due to the flexible diaphragm, a manufacturing process using semiconductor MEMS technology may improve the sensitivity of the condenser microphone and reduce the size of the condenser microphone, thereby enabling integration into a portable terminal.

    摘要翻译: 提供具有弯曲铰链形上隔膜和背板的微型电容麦克风及其制造方法。 该方法包括以下步骤:形成下硅层和第一绝缘层; 在所述第一绝缘层上形成用作背板的上硅层; 通过图案化上硅层形成多个声孔; 在所述上硅层上形成第二绝缘层; 在具有所述声孔的所述上硅层上形成导电层,并在所述导电层上形成钝化层; 在钝化层上形成牺牲层; 在所述牺牲层上沉积隔膜,以及形成通过所述隔膜的多个空气孔; 在所述钝化层上形成电极焊盘和所述隔膜的区域; 蚀刻牺牲层,钝化层,导电层,上硅层,第一绝缘层和下硅层,以在隔膜和上硅层之间形成气隙。 因此,由于柔性隔膜,使用半导体MEMS技术的制造工艺可以提高电容式麦克风的灵敏度并减小电容式麦克风的尺寸,从而可以集成到便携式终端中。

    Security system and method using measurement of acoustic field variation
    28.
    发明授权
    Security system and method using measurement of acoustic field variation 有权
    使用声场变化测量的安全系统和方法

    公开(公告)号:US08797407B2

    公开(公告)日:2014-08-05

    申请号:US12878414

    申请日:2010-09-09

    摘要: A security system and a method of determining whether there is an intrusion are provided. A correlation between sound signals obtained from a sound source generating device and a sound-field variation measuring device is used to measure a acoustic field in a certain space. A difference between an initially set acoustic field and a changed acoustic field is used to determine whether there is an intruding object in a certain space. The security system includes a sound source generating device for generating a sound source; and a sound-field variation measuring device for measuring a acoustic field formed by the sound source, wherein an initially set acoustic field is compared with the measured acoustic field to determine whether there is an intrusion.

    摘要翻译: 提供一种确定是否存在入侵的安全系统和方法。 使用从声源发生装置获取的声音信号和声场变化测量装置之间的相关性来测量某个空间中的声场。 使用初始设置的声场和改变的声场之间的区别来确定在某个空间中是否存在入侵物体。 安全系统包括用于产生声源的声源产生装置; 以及用于测量由声源形成的声场的声场变化测量装置,其中将初始设置的声场与所测量的声场进行比较以确定是否存在入侵。

    Piezoelectric speaker and method of manufacturing the same
    30.
    发明授权
    Piezoelectric speaker and method of manufacturing the same 有权
    压电扬声器及其制造方法

    公开(公告)号:US08712079B2

    公开(公告)日:2014-04-29

    申请号:US12507364

    申请日:2009-07-22

    IPC分类号: H04R25/00 H04R1/20

    摘要: A piezoelectric speaker and a method of manufacturing the same that can obtain a high sound pressure using a piezoelectric thin film are provided. The piezoelectric speaker includes a piezoelectric thin film, electrodes formed on an upper surface or upper and lower surfaces of the piezoelectric thin film, a damping material layer formed on the lower surface of the piezoelectric thin film, and a frame attached around at least one of the piezoelectric thin film and the damping material layer using an adhesive.

    摘要翻译: 提供一种使用压电薄膜可以获得高声压的压电扬声器及其制造方法。 压电扬声器包括压电薄膜,形成在压电薄膜的上表面或上表面和下表面上的电极,形成在压电薄膜的下表面上的阻尼材料层和围绕至少一个 压电薄膜和使用粘合剂的阻尼材料层。