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    • 1. 发明申请
    • Sound source search system
    • 声源搜索系统
    • US20050246167A1
    • 2005-11-03
    • US10525908
    • 2003-08-27
    • Hirofumi NakajimaShinji OhashiHideo TsuruHiroshi OhyamaTakaaki Yamanaka
    • Hirofumi NakajimaShinji OhashiHideo TsuruHiroshi OhyamaTakaaki Yamanaka
    • G01S3/808H04R1/40H04R3/00G10L19/00
    • H04R3/005G01H3/125G01S3/8083H04R1/406H04R2201/401
    • It is possible to simultaneously identify the sound coming direction from a sound source in all directions and estimate the sound intensity of the sound source. A plurality of microphones (11) are arranged on the surface of a baffle (10) of a shape such as a sphere and polyhedron so that sound from all directions are acquired. A calculation device (40) calculates the amplitude characteristic and the phase characteristic of acoustic signals acquired by the microphones (11). The signal information and information on sound field analysis around the baffle are integrated and calculation to emphasize a sound coming from a particular direction is performed for all the directions so as to identify the sound coming direction from a sound source. According to these calculation results and the distance input by an input device (70), it is possible to estimate the sound intensity of the sound source at a plurality of portions generated at the sound source or boundary surface.
    • 可以从各个方向的声源同时识别来自声音的方向,并且估计声源的声音强度。 多个麦克风(11)布置在诸如球体和多面体的形状的挡板(10)的表面上,使得获得来自所有方向的声音。 计算装置(40)计算由麦克风(11)获取的声学信号的振幅特性和相位特性。 整合挡板周围的信号信息和声场分析信息,对所有方向进行强调来自特定方向的声音的计算,以便识别来自声源的声音进入方向。 根据这些计算结果和输入装置输入的距离(70),可以估计在声源或边界面处产生的多个部分处的声源的声音强度。
    • 5. 发明授权
    • Sound source search system
    • 声源搜索系统
    • US07379553B2
    • 2008-05-27
    • US10525908
    • 2003-08-27
    • Hirofumi NakajimaShinji OhashiHideo TsuruHiroshi OhyamaTakaaki Yamanaka
    • Hirofumi NakajimaShinji OhashiHideo TsuruHiroshi OhyamaTakaaki Yamanaka
    • H04R3/00
    • H04R3/005G01H3/125G01S3/8083H04R1/406H04R2201/401
    • It is possible to simultaneously identify the sound coming direction from a sound source in all directions and estimate the sound intensity of the sound source. A plurality of microphones (11) are arranged on the surface of a baffle (10) of a shape such as a sphere and polyhedron so that sound from all directions are acquired. A calculation device (40) calculates the amplitude characteristic and the phase characteristic of acoustic signals acquired by the microphones (11). The signal information and information on sound field analysis around the baffle are integrated and calculation to emphasize a sound coming from a particular direction is performed for all the directions so as to identify the sound coming direction from a sound source. According to these calculation results and the distance input by an input device (70), it is possible to estimate the sound intensity of the sound source at a plurality of portions generated at the sound source or boundary surface.
    • 可以从各个方向的声源同时识别来自声音的方向,并且估计声源的声音强度。 多个麦克风(11)布置在诸如球体和多面体的形状的挡板(10)的表面上,使得获得来自所有方向的声音。 计算装置(40)计算由麦克风(11)获取的声学信号的振幅特性和相位特性。 整合挡板周围的信号信息和声场分析信息,对所有方向进行强调来自特定方向的声音的计算,以便识别来自声源的声音进入方向。 根据这些计算结果和输入装置输入的距离(70),可以估计在声源或边界面处产生的多个部分处的声源的声音强度。
    • 6. 发明授权
    • Method and apparatus for dynamically absorbing vibration
    • 动态吸收振动的方法和装置
    • US07243359B2
    • 2007-07-10
    • US10519795
    • 2003-11-21
    • Toshio SaitoHiroshi Ohyama
    • Toshio SaitoHiroshi Ohyama
    • G11B7/08
    • G11B33/08
    • A disk device (10) comprises a case (11) for supporting the entire disk device (10), a base chassis (12) on which a spindle motor (21) for rotating the disk is set, a counterweight (13) for absorbing vibration of the base chassis (12), and a plurality of elastic bodies (14a-14d) for mutually supporting the case (11), the base chassis (12) and the counterweight (13). The case (11), the base chassis (12), and the counterweight (13) are supported by the common elastic bodies (14a-14d). As a result, there can be provided the dynamic vibration absorber in which the number of parts is not increased and a cost can be reduced, and the optical disk device (10) using the dynamic vibration absorber.
    • 磁盘装置(10)包括用于支撑整个磁盘装置(10)的壳体(11),设置用于旋转磁盘的主轴电动机(21)的底架(12),用于吸收 底架(12)的振动,以及用于相互支撑壳体(11),底架(12)和配重(13)的多个弹性体(14a-14d)。 壳体(11),底架(12)和配重(13)由共同的弹性体(14a-14d)支撑。 其结果是,能够提供不增加部件数量并且可以降低成本的动态吸振器,以及使用动态吸振体的光盘装置(10)。
    • 9. 发明申请
    • REFLECTOR STRUCTURE, SOUND FIELD ADJUSTING METHOD, COLUMNAR REFLECTOR STRUCTURE, ROOM, PROGRAM, AND VARIOUS ACOUSTIC ROOM DESIGNING SYSTEM
    • 反射器结构,声场调整方法,柱反射器结构,房间,程序和各种声音室设计系统
    • US20110064234A1
    • 2011-03-17
    • US12993496
    • 2009-05-21
    • Yasushi SatakeHideo TsuruKazuhiro MakinoShinji OhashiHiroshi Ohyama
    • Yasushi SatakeHideo TsuruKazuhiro MakinoShinji OhashiHiroshi Ohyama
    • H03G3/00
    • G10K11/28
    • There is provided a sound field adjusting method that can provide an acoustic improvement effect tailored to the characteristics of various acoustic rooms, with small differences in reflection properties between sound receiving points. The diameters of a plurality of columnar reflectors are calculated so as to diffuse sound waves of respective different frequency ranges. An arrangement condition is calculated so that the columnar reflectors having the calculated diameters form a plurality of reflecting surfaces that reflect the sound waves of different frequency ranges in random reflection directions, with random reflection time delays, or in random phases. The plurality of columnar reflectors having respective different diameters are then arranged under the arrangement condition. The arrangement condition is calculated to form a reflecting surface for a sound wave of a higher frequency range near a sound source, and form a reflecting surface for a sound wave of a lower frequency range far from the sound source. A sound absorbing structure by using the internal space of the arranged columnar reflectors provides effective countermeasures against low-range standing waves.
    • 提供了一种声场调整方法,其能够提供根据各种声学室的特征定制的声音改善效果,声音接收点之间的反射特性差异小。 计算多个柱状反射体的直径,以扩散各个不同频率范围的声波。 计算布置条件,使得具有计算的直径的柱状反射器形成多个反射表面,其以随机反射时间延迟或随机相位反射随机反射方向上的不同频率范围的声波。 然后在布置条件下布置具有各自不同直径的多个柱状反射器。 计算排列条件以形成靠近声源的较高频率范围的声波的反射表面,并形成远离声源的较低频率范围的声波的反射表面。 通过使用排列的柱状反射器的内部空间来形成吸声结构,提供了针对低范围驻波的有效对策。