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    AUDIO CIRCUIT
    1.
    发明申请
    AUDIO CIRCUIT 失效
    音频电路

    公开(公告)号：US20100226513A1

    公开(公告)日：2010-09-09

    申请号：US12280208

    申请日：2007-03-14

    Applicant: Jun Kuroda ,  Yukio Murata ,  Ukyo Mori ,  Satoshi Hosokawa

    Inventor： Jun Kuroda ,  Yukio Murata ,  Ukyo Mori ,  Satoshi Hosokawa

    IPC: H03F99/00

    CPC classification number: H03G9/14 ,  H03F1/32 ,  H03F2200/03 ,  H03F2200/45 ,  H04R3/007

    Abstract: An object is to provide an audio circuit in which flow of excessive current through a capacitive speaker and a drive circuit thereof can be prevented while degradation of sound quality of high-pitched tones is suppressed. The audio circuit for driving a capacitive speaker includes: a weighting circuit for performing weighting in conformity with frequency components of an audio signal; and a signal-voltage limiting compression circuit for compressing a signal, which is input to the drive amplifier or which has been output from the drive circuit, at a prescribed compression ratio in accordance with a difference voltage between the output signal of the weighting circuit and a preset threshold voltage when the weighted signal exceeds the threshold voltage. Alternatively, the audio circuit is provided with a signal-voltage limiting compression circuit for passing, with amplitudes unchanged, signal components below a prescribed frequency contained in the signal reproduced by the capacitive speaker and compressing amplitudes of signal components not less than the prescribed frequency at a prescribed compression ratio.

    Abstract translation: 本发明的目的是提供一种音频电路，其中可以防止通过电容式扬声器和其驱动电路的过大电流流过，同时抑制了高音调音质的降低。 用于驱动电容式扬声器的音频电路包括：加权电路，用于根据音频信号的频率分量进行加权; 以及信号电压限制压缩电路，用于根据加权电路的输出信号和加权电路的输出信号之间的差电压将输入到驱动放大器或已经从驱动电路输出的信号按照规定的压缩比进行压缩 当加权信号超过阈值电压时的预设阈值电压。 或者，音频电路设置有信号电压限制压缩电路，其以不变的幅度通过包含在由电容式扬声器再现的信号中的规定频率以下的信号分量，并压缩不小于规定频率的信号分量的振幅 规定的压缩比。

    Audio circuit
    2.
    发明授权
    Audio circuit 失效
    音频电路

    公开(公告)号：US08081779B2

    公开(公告)日：2011-12-20

    申请号：US12280208

    申请日：2007-03-14

    Applicant: Jun Kuroda ,  Yukio Murata ,  Ukyo Mori ,  Satoshi Hosokawa

    Inventor： Jun Kuroda ,  Yukio Murata ,  Ukyo Mori ,  Satoshi Hosokawa

    IPC: H04R3/00

    CPC classification number: H03G9/14 ,  H03F1/32 ,  H03F2200/03 ,  H03F2200/45 ,  H04R3/007

    Abstract: An object is to provide an audio circuit in which flow of excessive current through a capacitive speaker and a drive circuit thereof can be prevented while degradation of sound quality of high-pitched tones is suppressed. The audio circuit for driving a capacitive speaker includes: a weighting circuit for performing weighting in conformity with frequency components of an audio signal; and a signal-voltage limiting compression circuit for compressing a signal, which is input to the drive amplifier or which has been output from the drive circuit, at a prescribed compression ratio in accordance with a difference voltage between the output signal of the weighting circuit and a preset threshold voltage when the weighted signal exceeds the threshold voltage. Alternatively, the audio circuit is provided with a signal-voltage limiting compression circuit for passing, with amplitudes unchanged, signal components below a prescribed frequency contained in the signal reproduced by the capacitive speaker and compressing amplitudes of signal components not less than the prescribed frequency at a prescribed compression ratio.

    Abstract translation: 本发明的目的是提供一种音频电路，其中可以防止通过电容式扬声器和其驱动电路的过大电流流过，同时抑制了高音调音质的降低。 用于驱动电容式扬声器的音频电路包括：加权电路，用于根据音频信号的频率分量进行加权; 以及信号电压限制压缩电路，用于根据加权电路的输出信号和加权电路的输出信号之间的差电压将输入到驱动放大器或已经从驱动电路输出的信号按照规定的压缩比进行压缩 当加权信号超过阈值电压时的预设阈值电压。 或者，音频电路设置有信号电压限制压缩电路，其以不变的幅度通过包含在由电容式扬声器再现的信号中的规定频率以下的信号分量，并压缩不小于规定频率的信号分量的振幅 规定的压缩比。

    ACOUSTIC PROCESSING SYSTEM AND METHOD FOR ELECTRONIC APPARATUS AND MOBILE TELEPHONE TERMINAL
    3.
    发明申请
    ACOUSTIC PROCESSING SYSTEM AND METHOD FOR ELECTRONIC APPARATUS AND MOBILE TELEPHONE TERMINAL 审中-公开
    用于电子设备和移动电话终端的声学处理系统和方法

    公开(公告)号：US20100086149A1

    公开(公告)日：2010-04-08

    申请号：US12531324

    申请日：2008-02-28

    Applicant: Jun Kuroda ,  Satoshi Hosokawa ,  Ukyo Mori

    Inventor： Jun Kuroda ,  Satoshi Hosokawa ,  Ukyo Mori

    IPC: H03G5/00

    CPC classification number: H03G7/002 ,  H03G7/007 ,  H03G9/00 ,  H03G9/005 ,  H03G9/025 ,  H04R3/04

    Abstract: An acoustic processing system for an electronic device includes: an equalizer processor which boosts or cuts a digital signal which has been subjected to an acoustic process for each of frequency components; a low-pass filter which extracts a low-range signal from the signal from the equalizer processor and outputs the signal; a high-pass filter which extracts a high-range signal from the signal from the equalizer processor and outputs the signal; a high-frequency compressor which compresses the high-range signal; an adder which generates an addition of the low-range signal and the compressed high-range signal; and a speaker which outputs a sound in accordance with the addition of the signal.

    Abstract translation: 一种用于电子设备的声学处理系统包括：均衡器处理器，其对每个频率分量进行声学处理的数字信号进行升压或切断; 低通滤波器，其从来自均衡器处理器的信号中提取低范围信号并输出​​该信号; 高通滤波器，其从来自均衡器处理器的信号中提取高范围信号并输出​​该信号; 压缩高频信号的高频压缩机; 加法器，其生成所述低范围信号和所述压缩的高范围信号的相加; 以及扬声器，其根据信号的相加输出声音。

    Piezoelectric actuator and audio components
    5.
    发明授权
    Piezoelectric actuator and audio components 有权
    压电执行器和音频元件

    公开(公告)号：US08569930B2

    公开(公告)日：2013-10-29

    申请号：US13319872

    申请日：2010-04-12

    Applicant: Masatake Takahashi ,  Yasuhiro Sasaki ,  Yasuharu Onishi ,  Yukio Murata ,  Ukyo Mori ,  Jun Kuroda

    Inventor： Masatake Takahashi ,  Yasuhiro Sasaki ,  Yasuharu Onishi ,  Yukio Murata ,  Ukyo Mori ,  Jun Kuroda

    IPC: H01L41/08

    CPC classification number: H04R17/00 ,  H01L41/0973 ,  H04R7/06

    Abstract: One object of the present invention is to an achieve increase of amplitude of vibrations and/or flattening of frequency dependence of the amplitude of a piezoelectric actuator. Piezoelectric actuator (100) has first piezoelectric vibrator (102), second piezoelectric vibrator (104), and vibrating membrane (106). First piezoelectric vibrator (102) includes first pedestal (116) and first piezoelectric element (112) connected to the first pedestal. Second piezoelectric vibrator (104) includes second pedestal (118) and second piezoelectric element (114) connected to the second pedestal. Vibrating membrane (106) has opening (108). First piezoelectric vibrator (102) is connected to one surface of vibrating membrane (106) straddling opening (108) of the vibrating membrane. Second piezoelectric vibrator (102) is connected to another surface of vibrating membrane (106) straddling opening (108) of the vibrating membrane.

    Abstract translation: 本发明的一个目的是实现振动幅度的增加和/或压电致动器的振幅的频率依赖性的平坦化。 压电致动器（100）具有第一压电振动器（102），第二压电振动器（104）和振动膜（106）。 第一压电振动器（102）包括连接到第一基座的第一基座（116）和第一压电元件（112）。 第二压电振动器（104）包括连接到第二基座的第二基座（118）和第二压电元件（114）。 振动膜（106）具有开口（108）。 第一压电振动器（102）连接到跨越振动膜的开口（108）的振动膜（106）的一个表面。 第二压电振动器（102）连接到振动膜的跨接开口（108）的振动膜（106）的另一表面。

    PIEZOELECTRIC ACTUATOR AND AUDIO COMPONENTS
    6.
    发明申请
    PIEZOELECTRIC ACTUATOR AND AUDIO COMPONENTS 有权
    压电致动器和音频元件

    公开(公告)号：US20120119617A1

    公开(公告)日：2012-05-17

    申请号：US13319872

    申请日：2010-04-12

    Applicant: Masatake Takahashi ,  Yasuhiro Sasaki ,  Yasuharu Onishi ,  Yukio Murata ,  Ukyo Mori ,  Jun Kuroda

    Inventor： Masatake Takahashi ,  Yasuhiro Sasaki ,  Yasuharu Onishi ,  Yukio Murata ,  Ukyo Mori ,  Jun Kuroda

    IPC: G10K9/125 ,  H01L41/09 ,  H01L41/053

    CPC classification number: H04R17/00 ,  H01L41/0973 ,  H04R7/06

    Abstract: One object of the present invention is to an achieve increase of amplitude of vibrations and/or flattening of frequency dependence of the amplitude of a piezoelectric actuator. Piezoelectric actuator (100) has first piezoelectric vibrator (102), second piezoelectric vibrator (104), and vibrating membrane (106). First piezoelectric vibrator (102) includes first pedestal (116) and first piezoelectric element (112) connected to the first pedestal. Second piezoelectric vibrator (104) includes second pedestal (118) and second piezoelectric element (114) connected to the second pedestal. Vibrating membrane (106) has opening (108). First piezoelectric vibrator (102) is connected to one surface of vibrating membrane (106) straddling opening (108) of the vibrating membrane. Second piezoelectric vibrator (102) is connected to another surface of vibrating membrane (106) straddling opening (108) of the vibrating membrane.

    Abstract translation: 本发明的一个目的是实现振动幅度的增加和/或压电致动器的振幅的频率依赖性的平坦化。 压电致动器（100）具有第一压电振动器（102），第二压电振动器（104）和振动膜（106）。 第一压电振动器（102）包括连接到第一基座的第一基座（116）和第一压电元件（112）。 第二压电振动器（104）包括连接到第二基座的第二基座（118）和第二压电元件（114）。 振动膜（106）具有开口（108）。 第一压电振动器（102）连接到跨越振动膜的开口（108）的振动膜（106）的一个表面。 第二压电振动器（102）连接到振动膜的跨接开口（108）的振动膜（106）的另一表面。

    Speaker, image element protective screen, case of terminal and terminal
    8.
    发明授权
    Speaker, image element protective screen, case of terminal and terminal 有权
    扬声器，图像元件保护屏，终端和终端盒

    公开(公告)号：US08116506B2

    公开(公告)日：2012-02-14

    申请号：US12064779

    申请日：2006-11-02

    Applicant: Jun Kuroda ,  Hideki Ueda ,  Yukio Murata ,  Ukyo Mori ,  Yasuhiro Sasaki ,  Yasuharu Ohnishi

    Inventor： Jun Kuroda ,  Hideki Ueda ,  Yukio Murata ,  Ukyo Mori ,  Yasuhiro Sasaki ,  Yasuharu Ohnishi

    IPC: H04R1/02

    CPC classification number: H04R5/02 ,  H04M1/0216 ,  H04M1/0266 ,  H04M1/03 ,  H04R1/02 ,  H04R2499/15

    Abstract: Arrangement of an internal component (not shown) arranged in the vicinity of the top side is different from that of the hinge side of an image element protective screen (2). An actuator (5) is fixed to the top side of the image element protective screen (2) and an actuator (4) is fixed to the hinge side of the image element protective screen (2). Since Arrangement of the internal component in the vicinity of the actuator is different, different sound pressure frequency characteristics or the like are experienced when each actuator is driven independently. When the actuators (4, 5) are driven simultaneously, sound pressure frequency characteristics and vibration frequency characteristics can be flattened. Isolation between the vibration speed of a vibrator near one actuator and the vibration speed of a vibrator in the region near the other actuator that are produced by respective actuators is set at 10 dB or above.

    Abstract translation: 布置在顶侧附近的内部部件（未示出）的布置与图像元件保护屏（2）的铰链侧的布置不同。 致动器（5）固定在图像元件保护屏（2）的顶侧，致动器（4）固定在图像元件保护屏（2）的铰链侧。 由于致动器附近的内部部件的配置不同，因此当各个致动器被独立地驱动时，经历不同的声压频率特性等。 当致动器（4,5）同时被驱动时，声压频率特性和振动频率特性可以变平。 在一个致动器附近的振动器的振动速度与由各个致动器产生的另一致动器附近的区域中的振动器的振动速度之间的隔离设置为10dB或更高。

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