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公开(公告)号:US20100158287A1
公开(公告)日:2010-06-24
申请号:US12317070
申请日:2008-12-18
申请人: Liangfeng Xu , Xia S. Wang , Chenguang Cai , Jani K. Nurminen , Antti O. Salo , Limei Xu , Xuesheng Li , Yi Wang , Min Chen
发明人: Liangfeng Xu , Xia S. Wang , Chenguang Cai , Jani K. Nurminen , Antti O. Salo , Limei Xu , Xuesheng Li , Yi Wang , Min Chen
CPC分类号: H04R1/403 , H04M1/03 , H04M1/035 , H04R1/028 , H04R3/12 , H04R31/00 , H04R2430/01 , H04R2499/11
摘要: A sound producing apparatus with multi-directivity has two or more speakers to produce music or other types of audio sounds. Each of the speakers can produce audio sounds in a certain direction and at least one speaker is steerable so that its sound propagation direction relative to the others can be changed. Furthermore, one or more speakers can produce audio sounds in an adjustable angular range. One or more of the speakers can be dual-mode speakers, each of which can be operated as a wide-angle speaker or a narrow-angle speaker. With multi-directivity, it is possible to play one type of music in one direction and another type of music in another direction to suit the interests of the audience. The apparatus can be a mobile phone, an audio player, a digital or analog recorder/player, or the like.
摘要翻译: 具有多方向性的声音产生装置具有两个或多个扬声器以产生音乐或其它类型的音频声音。 每个扬声器可以在一定方向上产生音频声音,并且至少一个扬声器是可操纵的,使得其相对于其他扬声器的声音传播方向可以改变。 此外,一个或多个扬声器可产生可调角度范围的音频声音。 扬声器中的一个或多个可以是双模扬声器,每个扬声器可以作为广角扬声器或窄角度扬声器来操作。 通过多方向性,可以在一个方向上播放一种音乐,另一方面可以播放另一种类型的音乐,以适应观众的兴趣。 该装置可以是移动电话,音频播放器,数字或模拟记录器/播放器等。
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公开(公告)号:US09451356B2
公开(公告)日:2016-09-20
申请号:US12317070
申请日:2008-12-18
申请人: Liangfeng Xu , Xia S. Wang , Chenguang Cai , Jani K. Nurminen , Antti O. Salo , Limei Xu , Xuesheng Li , Yi Wang , Min Chen
发明人: Liangfeng Xu , Xia S. Wang , Chenguang Cai , Jani K. Nurminen , Antti O. Salo , Limei Xu , Xuesheng Li , Yi Wang , Min Chen
CPC分类号: H04R1/403 , H04M1/03 , H04M1/035 , H04R1/028 , H04R3/12 , H04R31/00 , H04R2430/01 , H04R2499/11
摘要: A sound producing apparatus with multi-directivity has two or more speakers to produce music or other types of audio sounds. Each of the speakers can produce audio sounds in a certain direction and at least one speaker is steerable so that its sound propagation direction relative to the others can be changed. Furthermore, one or more speakers can produce audio sounds in an adjustable angular range. One or more of the speakers can be dual-mode speakers, each of which can be operated as a wide-angle speaker or a narrow-angle speaker. With multi-directivity, it is possible to play one type of music in one direction and another type of music in another direction to suit the interests of the audience. The apparatus can be a mobile phone, an audio player, a digital or analog recorder/player, or the like.
摘要翻译: 具有多方向性的声音产生装置具有两个或多个扬声器以产生音乐或其它类型的音频声音。 每个扬声器可以在一定方向上产生音频声音,并且至少一个扬声器是可操纵的,使得其相对于其他扬声器的声音传播方向可以改变。 此外,一个或多个扬声器可产生可调角度范围的音频声音。 扬声器中的一个或多个可以是双模扬声器,每个扬声器可以作为广角扬声器或窄角度扬声器来操作。 通过多方向性,可以在一个方向上播放一种音乐,另一方面可以播放另一种类型的音乐,以适应观众的兴趣。 该装置可以是移动电话,音频播放器,数字或模拟记录器/播放器等。
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公开(公告)号:US20100080409A1
公开(公告)日:2010-04-01
申请号:US12286117
申请日:2008-09-26
申请人: Liangfeng Leon Xu , Chenguang Cai , Jani K. Nurminen , Xia S. Wang , Antti O. Salo , Koray Ozcan
发明人: Liangfeng Leon Xu , Chenguang Cai , Jani K. Nurminen , Xia S. Wang , Antti O. Salo , Koray Ozcan
IPC分类号: H04R9/06
CPC分类号: B06B1/0644 , H04R1/24 , H04R1/403 , H04R3/12 , H04R17/00 , H04R2201/003 , H04R2201/401 , H04R2203/12 , H04R2205/022 , H04R2217/03 , H04R2499/11
摘要: An apparatus uses a transducer to produce vibration in the ultrasonic frequency range and in the audible frequency range. A membrane or cantilever structure is coupled to the transducer to produce acoustic waves. When the vibration is in the audible frequency range, the membrane structure works like a conventional loudspeaker. When the vibration is in the ultrasonic frequency range, the ultrasonic signal is modulated by audio signal for creating better directivity. The acoustic waves in the ultrasonic frequency range can reproduce directional audible sound due to the nonlinear interaction of ultrasonic waves in air.
摘要翻译: 一种装置使用换能器在超声频率范围和可听频率范围内产生振动。 膜或悬臂结构耦合到换能器以产生声波。 当振动处于可听频率范围时,膜结构类似传统的扬声器。 当振动处于超声波频率范围时,超声波信号由音频信号调制,以产生更好的方向性。 由于超声波在空气中的非线性相互作用,超声频率范围内的声波可以再现方向性的声音。
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公开(公告)号:US08116508B2
公开(公告)日:2012-02-14
申请号:US12286117
申请日:2008-09-26
申请人: Liangfeng Leon Xu , Chenguang Cai , Jani K. Nurminen , Xia S. Wang , Antti O. Salo , Koray Ozcan
发明人: Liangfeng Leon Xu , Chenguang Cai , Jani K. Nurminen , Xia S. Wang , Antti O. Salo , Koray Ozcan
CPC分类号: B06B1/0644 , H04R1/24 , H04R1/403 , H04R3/12 , H04R17/00 , H04R2201/003 , H04R2201/401 , H04R2203/12 , H04R2205/022 , H04R2217/03 , H04R2499/11
摘要: An apparatus uses a transducer to produce vibration in the ultrasonic frequency range and in the audible frequency range. A membrane or cantilever structure is coupled to the transducer to produce acoustic waves. When the vibration is in the audible frequency range, the membrane structure works like a conventional loudspeaker. When the vibration is in the ultrasonic frequency range, the ultrasonic signal is modulated by audio signal for creating better directivity. The acoustic waves in the ultrasonic frequency range can reproduce directional audible sound due to the nonlinear interaction of ultrasonic waves in air.
摘要翻译: 一种装置使用换能器在超声频率范围和可听频率范围内产生振动。 膜或悬臂结构耦合到换能器以产生声波。 当振动处于可听频率范围时,膜结构类似传统的扬声器。 当振动处于超声波频率范围时,超声波信号由音频信号调制,以产生更好的方向性。 由于超声波在空气中的非线性相互作用,超声频率范围内的声波可以再现方向性的声音。
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