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1. 发明申请

US20180139557A1 SYSTEM AND METHOD FOR GENERATING SPATIAL SOUND USING ULTRASOUND 审中-公开
公开(公告)号：US20180139557A1
公开(公告)日：2018-05-17
申请号：US15848850
申请日：2017-12-20
申请人： Pixie Dust Technologies, Inc.
发明人： Yoichi OCHIAI , Takayuki HOSHI
IPC分类号： H04S7/00 , H04S1/00
CPC分类号： H04S7/30 , H04R1/403 , H04R3/12 , H04R2201/401 , H04R2217/03 , H04R2430/20 , H04S1/002 , H04S2400/11
摘要： A novel system and method for spatial sound generation is disclosed. A system and method for generating bodiless mid-air speakers includes the steps of: generating a modulated signal by modulating an ultrasonic carrier signal with an audio signal, determining a phase delay value for each ultrasonic transducer of an array of ultrasonic transducers with respect to one or more focal points, and driving each such ultrasonic transducer with the modulated signal in accordance with the phase delay value determined for each ultrasonic transducer to generate audible sound at the one or more focal points.

2. 发明申请

US20170289722A1 SYSTEM AND METHOD FOR GENERATING SPATIAL SOUND USING ULTRASOUND 有权
公开(公告)号：US20170289722A1
公开(公告)日：2017-10-05
申请号：US15089879
申请日：2016-04-04
申请人： Pixie Dust Technologies, Inc.
发明人： Yoichi OCHIAI , Takayuki HOSHI
IPC分类号： H04S7/00 , H04R19/02 , H04R3/12
CPC分类号： H04S7/30 , H04R1/403 , H04R3/12 , H04R2201/401 , H04R2217/03 , H04R2430/20 , H04S1/002 , H04S2400/11
摘要： A novel system and method for spatial sound generation is disclosed. A system and method for generating bodiless mid-air speakers includes the steps of: generating a modulated signal by modulating an ultrasonic carrier signal with an audio signal, determining a phase delay value for each ultrasonic transducer of an array of ultrasonic transducers with respect to one or more focal points, and driving each such ultrasonic transducer with the modulated signal in accordance with the phase delay value determined for each ultrasonic transducer to generate audible sound at the one or more focal points.

3. 发明申请

US20190108829A1 SYSTEM AND METHOD FOR MANIPULATING OBJECTS IN A COMPUTATIONAL ACOUSTIC-POTENTIAL FIELD 审中-公开
公开(公告)号：US20190108829A1
公开(公告)日：2019-04-11
申请号：US16214380
申请日：2018-12-10
申请人： Pixie Dust Technologies, Inc.
发明人： Yoichi OCHIAI , Takayuki HOSHI , Jun REKIMOTO
IPC分类号： G10K15/00 , G10K11/34 , G09G3/00
摘要： A novel system and method based on three-dimensional acoustic-manipulation technology is disclosed. By changing the distribution of an acoustic-potential field generated by ultrasonic phased arrays, objects can be levitated and animated. Various distributions of acoustic-potential fields can be generated in accordance with the present invention, including acoustic-potential fields having arbitrary shapes, including any three-dimensional shapes. One or more ultrasonic phased arrays surrounding a workspace can be used to generate standing waves of various shapes to provide the acoustic-potential fields. Objects can be suspended at the nodes of the acoustic-potential field so that the ultrasound distribution (i.e., the desired arbitrary shape) is visualized. The system and method can be used to realize floating screen or mid-air raster graphics, mid-air vector graphics, and interaction with levitated objects. The system and method can also be used in other applications, including cleaning applications.

4. 发明申请

US20170004819A1 SYSTEM AND METHOD FOR MANIPULATING OBJECTS IN A COMPUTATIONAL ACOUSTIC-POTENTIAL FIELD 审中-公开
标题翻译：用于在计算机声源中操纵物体的系统和方法
公开(公告)号：US20170004819A1
公开(公告)日：2017-01-05
申请号：US14788772
申请日：2015-06-30
申请人： Pixie Dust Technologies, Inc.
发明人： Yoichi OCHIAI , Takayuki HOSHI , Jun REKIMOTO
IPC分类号： G10K15/00
CPC分类号： G10K15/00 , G09G3/003 , G09G2310/0267 , G09G2310/0275 , G10K11/346
摘要： A novel system and method based on three-dimensional acoustic-manipulation technology is disclosed. By changing the distribution of an acoustic-potential field generated by ultrasonic phased arrays, objects can be levitated and animated. Various distributions of acoustic-potential fields can be generated in accordance with the present invention, including acoustic-potential fields having arbitrary shapes, including any three-dimensional shapes. One or more ultrasonic phased arrays surrounding a workspace can be used to generate standing waves of various shapes to provide the acoustic-potential fields. Objects can be suspended at the nodes of the acoustic-potential field so that the ultrasound distribution (i.e., the desired arbitrary shape) is visualized. The system and method can be used to realize floating screen or mid-air raster graphics, mid-air vector graphics, and interaction with levitated objects. The system and method can also be used in other applications, including cleaning applications.
摘要翻译：公开了一种基于三维声学操作技术的新型系统和方法。通过改变由超声相控阵列产生的声势场的分布，物体可以被悬浮和动画化。根据本发明，可以产生声电场的各种分布，包括具有任意形状的声电场，包括任何三维形状。可以使用围绕工作空间的一个或多个超声相位阵列来产生各种形状的驻波以提供声电场。物体可以悬挂在声势场的节点处，使得超声分布（即，期望的任意形状）可视化。该系统和方法可用于实现浮动屏幕或中空光栅图形，空中矢量图形以及与悬浮物体的交互。系统和方法也可用于其他应用，包括清洁应用。

5. 发明申请

US20210231507A1 MEASURING APPARATUS, AND MEASURING METHOD 有权
公开(公告)号：US20210231507A1
公开(公告)日：2021-07-29
申请号：US17229120
申请日：2021-04-13
申请人： Pixie Dust Technologies, Inc.
发明人： Yoichi OCHIAI , Takayuki HOSHI , Arata TAKAHASHI
IPC分类号： G01K11/24 , G01P5/24 , G01P13/04
摘要： A measuring apparatus includes a determining unit configured to determine propagation paths through which acoustic waves propagate. The acoustic waves are transmitted from one or more transmitters, pass through a predetermined region and are received by one or more receivers. The measuring apparatus includes a controlling unit configured to control the transmitters such that acoustic waves are transmitted and propagate through the propagation paths determined by the determining unit. The measuring apparatus includes an identifying unit configured to identify each of propagation times required for each of the acoustic waves transmitted in response to the control by the controlling unit to propagate each of the propagation paths. The measuring apparatus includes a measuring unit configured to measure an air characteristic of the predetermined region based on the propagation times identified by the identifying unit and length of the propagation paths.

6. 发明申请

US20170293259A1 SYSTEM AND METHOD FOR RENDERING INTERACTIVE AERIAL VOLUMETRIC GRAPHICS AND GENERATING SPATIAL AUDIO USING FEMTOSECOND LASERS 审中-公开
公开(公告)号：US20170293259A1
公开(公告)日：2017-10-12
申请号：US15092828
申请日：2016-04-07
申请人： Pixie Dust Technologies, Inc.
发明人： Yoichi OCHIAI , Takayuki HOSHI , Jun REKIMOTO , Kota KUMAGAI , Satoshi HASEGAWA , Yoshio HAYASAKI
IPC分类号： G03H1/00 , G06F3/048 , G02B27/22 , G02B26/10 , G02B3/00 , G03H3/00 , H04N13/02 , G03H1/22
CPC分类号： G03H1/0005 , G02B3/0006 , G02B3/0081 , G02B3/14 , G02B26/101 , G02B27/2271 , G02B27/2292 , G03H1/2205 , G03H1/2286 , G03H1/2294 , G03H2001/0061 , G03H2001/2213 , G03H2001/2292 , G03H2222/33 , H04N13/204 , H04N13/388 , H04N13/39
摘要： A plasma generator including: a femtosecond light source that generates a laser pulse beam; a processor that computes a computer generated hologram; a spatial light modulator that modifies the laser pulse beam in accordance with the computer generated hologram; a three dimensional scanner optically coupled to the spatial light modulator to direct the modified laser pulse beam to one or more focal points in air; and a lens that focuses the modified laser pulse beam. The modified laser pulse beam induces a light emission effect at a one or more focal points that can be visible, audible, and palpable.

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