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51. 发明申请

US20130106599A1 VEHICLE PRESENCE NOTIFICATION APPARATUS 审中-公开
标题翻译：车辆存在通知装置
公开(公告)号：US20130106599A1
公开(公告)日：2013-05-02
申请号：US13662908
申请日：2012-10-29
申请人： DENSO Corporation , HAMANAKODENSO CO., LTD.
发明人： Toshiaki NAKAYAMA , Koji SUZUKI
IPC分类号： B60Q1/54
CPC分类号： B60Q5/008 , G10K11/26
摘要： A vehicle presence notification apparatus notifying a presence of a vehicle includes a directivity speaker and a directivity controller. The directivity speaker generates a false engine sound out of the vehicle. The directivity controller controlling a directivity of the false engine sound based on a speed of the vehicle. The directivity controller controls a ratio of a high-pitched frequency component to a low-pitched frequency component in the false engine sound based on the speed of the vehicle.
摘要翻译：通知车辆存在的车辆存在通知装置包括方向性说话者和方向性控制器。方向性扬声器从车辆中产生虚假的引擎声音。方向性控制器基于车辆的速度控制虚假引擎声音的方向性。方向性控制器基于车辆的速度来控制虚假引擎声音中的高音部分与低音分量的比率。

52. 发明申请

US20120182136A1 VEHICLE APPROACH WARNING APPARATUS 审中-公开
标题翻译：车辆方法警告装置
公开(公告)号：US20120182136A1
公开(公告)日：2012-07-19
申请号：US13343870
申请日：2012-01-05
申请人： Toshiaki NAKAYAMA , Koji Suzuki , Yoshiaki Watanabe
发明人： Toshiaki NAKAYAMA , Koji Suzuki , Yoshiaki Watanabe
IPC分类号： B60Q1/00
CPC分类号： B60Q5/008
摘要： A vehicle (approach) warning apparatus generates a warning sound that is emitted from a parametric speaker and a vehicle horn, by driving the vehicle horn with a rectangular wave signal of 0 volts or more, thereby preventing a power loss due to a counter electromotive force that is caused by an alternation of a plus electric voltage and a minus electric voltage in the horn as well as preventing a problematic distortion of the warning sound from the horn. Further, since the vehicle (approach) warning apparatus is devised to prevent the parametric speaker from generating a low pitch sound of 500 Hz that is reproduced by the horn, an influence of a higher harmonic wave upon a reproduced sound from the parametric speaker is reduced, thereby preventing deterioration of a sound from the parametric speaker.
摘要翻译：车辆（接近）警告装置通过以0伏或更大的矩形波信号驱动车辆喇叭，从参数扬声器和车辆喇叭发出警告声，从而防止由于反电动势引起的功率损失这是由喇叭中的正电压和负电压的交替引起的，并且防止来自喇叭的警告声的有问题的扭曲。此外，由于设计了车辆（接近）警告装置以防止参数化扬声器产生由喇叭再现的500Hz的低音调声音，所以较高次谐波对来自参数扬声器的再现声音的影响减小从而防止声音从参数扬声器的劣化。

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