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1.发明授权公开(公告)号：US08547279B2
公开(公告)日：2013-10-01
申请号：US13122126
申请日：2009-10-01
IPC分类号： G01S3/02
摘要： Provided are a device and a method that can classify an incoming wave and can correctly distinguish the position of an originating device, even in a multipath environment. A principal vertically polarized wave arrival direction sensing unit (104-1) and a principal horizontally polarized wave arrival direction sensing unit (104-2) respectively sense the arrival direction of a principal wave by sensing the arrival direction in which the maximum reception level is obtained. An incoming wave classifying decision unit (108) determines that a direct wave has arrived when the difference between the principal wave arrival direction sensed by the principal vertically polarized wave arrival direction sensing unit (104-1) and the principal wave arrival direction sensed by the principal horizontally polarized wave arrival direction sensing unit (104-2) is within a prescribed threshold value, and determines that a direct wave has not arrived when the difference is greater than the threshold value.
摘要翻译： 提供了一种能够对入射波进行分类并且即使在多路径环境中也能正确区分始发设备的位置的设备和方法。 主垂直极化波到达方向感测单元（104-1）和主水平极化波到达方向感测单元（104-2）分别通过感测最大接收电平为最大接收电平的到达方向来感测主波的到达方向 获得。 入射波分类决定单元（108）确定当主垂直极化波到达方向感测单元（104-1）检测到的主波到达方向与由主垂直极化波到达方向感测单元检测到的主波到达方向之间的差异 主水平极化波到达方向感测单元（104-2）在规定的阈值内，并且当差值大于阈值时，确定没有到达直接波。
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2.发明申请公开(公告)号：US20110181472A1
公开(公告)日：2011-07-28
申请号：US13122126
申请日：2009-10-01
摘要： Provided are a device and a method that can classify an incoming wave and can correctly distinguish the position of an originating device, even in a multipath environment. A principal vertically polarized wave arrival direction sensing unit (104-1) and a principal horizontally polarized wave arrival direction sensing unit (104-2) respectively sense the arrival direction of a principal wave by sensing the arrival direction in which the maximum reception level is obtained. An incoming wave classifying decision unit (108) determines that a direct wave has arrived when the difference between the principal wave arrival direction sensed by the principal vertically polarized wave arrival direction sensing unit (104-1) and the principal wave arrival direction sensed by the principal horizontally polarized wave arrival direction sensing unit (104-2) is within a prescribed threshold value, and determines that a direct wave has not arrived when the difference is greater than the threshold value.
摘要翻译： 提供了一种能够对入射波进行分类并且即使在多路径环境中也能正确区分始发设备的位置的设备和方法。 主垂直极化波到达方向感测单元（104-1）和主水平极化波到达方向感测单元（104-2）分别通过感测最大接收电平为最大接收电平的到达方向来感测主波的到达方向 获得。 入射波分类决定单元（108）确定当主垂直极化波到达方向感测单元（104-1）检测到的主波到达方向与由主垂直极化波到达方向感测单元检测到的主波到达方向之间的差异 主水平极化波到达方向感测单元（104-2）在规定的阈值内，并且当差值大于阈值时，确定没有到达直接波。
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3.发明申请SOUND GENERATION SYSTEM, ULTRASONIC WAVE EMITTING DEVICE, AND ULTRASONIC WAVE EMITTING METHOD 有权声波发生系统，超声波发射装置和超声波发射方法公开(公告)号：US20130094331A1
公开(公告)日：2013-04-18
申请号：US13805541
申请日：2011-05-20
摘要： Disclosed are a sound generation system, an ultrasonic wave emitting device, and an ultrasonic wave emitting method which utilize the principle of parametric speakers (which uses the difference between frequencies of two ultrasonic waves) and which are capable of allowing target persons in a prescribed area to hear a sound only when a mobile body approaches said prescribed area. An alert system (10) has an ultrasonic wave emitting device (100) mounted on a mobile body (200), and an ultrasonic wave emitting device (300) permanently installed near an area (A101). The ultrasonic wave emitting device (300) emits a first ultrasonic wave towards an area at least including the aforementioned area (A101), and meanwhile, the ultrasonic wave emitting device (100) emits a second ultrasonic wave. The ultrasonic emitting device (100) forms the second ultrasonic wave by means of modulating the ultrasonic wave of frequency fit with an audible signal.
摘要翻译： 公开了利用参数扬声器（其使用两个超声波的频率之间的差异）的原理的声发生系统，超声波发射装置和超声波发射方法，并且能够允许目标人员在规定区域 仅当移动体接近所述规定区域时才能听到声音。 警报系统（10）具有安装在移动体（200）上的超声波发射装置（100）和永久地安装在区域（A101）附近的超声波发射装置（300）。 超声波发射装置（300）朝向至少包括上述区域（A101）的区域发射第一超声波，同时超声波发射装置（100）发射第二超声波。 超声波发射装置（100）通过调制与声音信号的频率配合的超声波来形成第二超声波。
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4.发明授权Sound generation system, ultrasonic wave emitting device, and ultrasonic wave emitting method 有权声发生系统，超声波发射装置和超声波发射方法公开(公告)号：US08693285B2
公开(公告)日：2014-04-08
申请号：US13805541
申请日：2011-05-20
摘要： Disclosed are a sound generation system, an ultrasonic wave emitting device, and an ultrasonic wave emitting method which utilize the principle of parametric speakers (which uses the difference between frequencies of two ultrasonic waves) and which are capable of allowing target persons in a prescribed area to hear a sound only when a mobile body approaches said prescribed area. An alert system (10) has an ultrasonic wave emitting device (100) mounted on a mobile body (200), and an ultrasonic wave emitting device (300) permanently installed near an area (A101). The ultrasonic wave emitting device (300) emits a first ultrasonic wave towards an area at least including the aforementioned area (A101), and meanwhile, the ultrasonic wave emitting device (100) emits a second ultrasonic wave. The ultrasonic emitting device (100) forms the second ultrasonic wave by means of modulating the ultrasonic wave of frequency f1 with an audible signal.
摘要翻译： 公开了利用参数扬声器（其使用两个超声波的频率之间的差异）的原理的声发生系统，超声波发射装置和超声波发射方法，并且能够允许目标人员在规定区域 仅当移动体接近所述规定区域时才能听到声音。 警报系统（10）具有安装在移动体（200）上的超声波发射装置（100）和永久地安装在区域（A101）附近的超声波发射装置（300）。 超声波发射装置（300）朝向至少包括上述区域（A101）的区域发射第一超声波，同时超声波发射装置（100）发射第二超声波。 超声波发射装置（100）通过利用可听信号调制频率f1的超声波来形成第二超声波。
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