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    Active piezoelectric energy harvester with embedded variable capacitance layer and method of manufacturing the same
    1.
    发明授权
    Active piezoelectric energy harvester with embedded variable capacitance layer and method of manufacturing the same 有权
    具有嵌入式可变电容层的有源压电能量收集器及其制造方法

    公开(公告)号：US08471439B2

    公开(公告)日：2013-06-25

    申请号：US12899499

    申请日：2010-10-06

    申请人： Seung Eon Moon ,  Sung Q Lee ,  Sang Kyun Lee ,  Yil Suk Yang ,  Kang Ho Park ,  Jong Dae Kim

    发明人： Seung Eon Moon ,  Sung Q Lee ,  Sang Kyun Lee ,  Yil Suk Yang ,  Kang Ho Park ,  Jong Dae Kim

    IPC分类号： H02N2/18

    CPC分类号： H02N2/186 ,  H01L41/1136 ,  H02N2/188 ,  Y10T29/42

    摘要： Provided is an active piezoelectric energy harvester, which can control a direct current voltage applied to an embedded variable capacitance layer to precisely adjust a resonance frequency in real time, and thus achieve a simpler structure and a smaller size compared to a conventional one that adjusts the resonance frequency using a separate variable capacitor provided outside. Further, the active piezoelectric energy harvester can precisely adjust the resonance frequency even when the frequency of vibration varies over time as in a real natural vibration environment or when it is degraded to undergo a variation in its own resonance frequency, and thus can continuously maintain optimal energy conversion characteristics.

    摘要翻译： 提供了一种有源压电能量收集器，其可以控制施加到嵌入式可变电容层的直流电压，以实时精确地调节谐振频率，从而实现比传统调节器的常规电路更简单的结构和更小的尺寸 谐振频率使用外部提供的单独的可变电容器。 此外，即使在真实的自然振动环境中，随着时间的推移，振动频率随时间而变化，或者当其自身的谐振频率变差而发生变化时，有源压电能量收集器也可以精确地调节谐振频率，从而可以持续保持最佳 能量转换特性。

    FORCED ACOUSTIC DIPOLE AND FORCED ACOUSTIC MULTIPOLE ARRAY USING THE SAME
    5.
    发明申请
    FORCED ACOUSTIC DIPOLE AND FORCED ACOUSTIC MULTIPOLE ARRAY USING THE SAME 有权
    使用它的强制声音多重和强迫声音多点阵列

    公开(公告)号：US20100080085A1

    公开(公告)日：2010-04-01

    申请号：US12473214

    申请日：2009-05-27

    申请人： Min Cheol SHIN ,  Sung Q. Lee ,  Sang Kyun Lee ,  Hye Jin Kim ,  Kang Ho Park ,  Jong Dae Kim

    发明人： Min Cheol SHIN ,  Sung Q. Lee ,  Sang Kyun Lee ,  Hye Jin Kim ,  Kang Ho Park ,  Jong Dae Kim

    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。

    Forced acoustic dipole and forced acoustic multipole array using the same
    7.
    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

    申请人： Min Cheol Shin ,  Sung Q Lee ,  Sang Kyun Lee ,  Hye Jin Kim ,  Kang Ho Park ,  Jong Dae Kim

    发明人： Min Cheol Shin ,  Sung Q Lee ,  Sang Kyun Lee ,  Hye Jin Kim ,  Kang Ho Park ,  Jong Dae Kim

    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。

    APPARATUS FOR GENERATING DIRECTIONAL SOUND AND MOBILE TERMINAL USING THE SAME
    9.
    发明申请
    APPARATUS FOR GENERATING DIRECTIONAL SOUND AND MOBILE TERMINAL USING THE SAME 审中-公开
    用于产生方向声和移动终端的装置

    公开(公告)号：US20090154736A1

    公开(公告)日：2009-06-18

    申请号：US12240128

    申请日：2008-09-29

    申请人： Sung Q Lee ,  Jae Woo Lee ,  Hye Jin Kim ,  Sang Kyun Lee ,  Kang Ho Park ,  Jong Dae Kim

    发明人： Sung Q Lee ,  Jae Woo Lee ,  Hye Jin Kim ,  Sang Kyun Lee ,  Kang Ho Park ,  Jong Dae Kim

    IPC分类号： H04R5/02

    CPC分类号： H04R1/323 ,  H04R3/12 ,  H04R2201/403 ,  H04R2499/11

    摘要： Provided are an apparatus for generating directional sound and a mobile terminal using the apparatus. The apparatus includes a signal controller for dividing and generating a reference signal into signals having three or more levels and phases, a first signal processor and a second signal processor for controlling a first signal and a second signal having levels and phases canceling each other among the signals generated from the signal controller, a central signal processor for controlling a signal having the same level and phase as the reference signal among the signals generated from the signal controller, a first speaker array and a second speaker array for converting signals output from the first signal processor and the second signal processor into sound signals and outputting the sound signals, and a central speaker for converting a signal output from the central signal processor into a sound signal and outputting the sound signal, and arranged between the first speaker array and the second speaker array.

    摘要翻译： 提供了一种用于产生定向声音的装置和使用该装置的移动终端。 该装置包括信号控制器，用于将参考信号分成并产生具有三个或多个电平和相位的信号;第一信号处理器和第二信号处理器，用于控制第一信号;以及第二信号， 从信号控制器产生的信号，用于控制与信号控制器产生的信号中具有与基准信号相同的电平和相位的信号的中央信号处理器，第一扬声器阵列和第二扬声器阵列，用于转换从第一 信号处理器和第二信号处理器转换成声音信号并输出​​声音信号;以及中央扬声器，用于将从中央信号处理器输出的信号转换为声音信号并输出​​声音信号，并且布置在第一扬声器阵列与第二扬声器阵列之间 扬声器阵列。