公开(公告)号：US20170096099A1

公开(公告)日：2017-04-06

申请号：US15242656

申请日：2016-08-22

Applicant: ANDEN CO., LTD.

Inventor： Yukiko MATSUBARA ,  Hironari TAJIMI ,  Chikara YAMAMOTO ,  Hiroshi SAKAKIBARA ,  Osamu TATEYAMA

IPC: B60Q5/00

CPC classification number: B60Q5/008 ,  G10K11/178 ,  G10K2210/1282

Abstract: A vehicle approach alert device includes: a memory memorizing a warning sound source data for emitting a warning sound from an external sound emitting unit and a canceling sound source data for emitting a canceling sound from an internal sound emitting unit. The canceling sound cancels the warning sound transmitted from the external sound emitting unit to inside of the vehicle. The vehicle approach alert device further includes: a control part configured to read the warning sound source data from the memory to cause the external sound emitting unit to emit the warning sound based on the warning sound source data, and to read the canceling sound source data from the memory to cause the internal sound emitting unit to emit the canceling sound based on the canceling sound source data to be synchronized with the warning sound.

公开(公告)号：US20130257605A1

公开(公告)日：2013-10-03

申请号：US13794945

申请日：2013-03-12

Applicant: ANDEN CO., LTD.

Inventor： Haruyuki TSUZUKI ,  Yoshimitsu UKAI ,  Yukiko MATSUBARA ,  Chikara YAMAMOTO

IPC: B60Q5/00

CPC classification number: B60Q5/008 ,  H03F1/305 ,  H03G3/348 ,  H04R3/02

Abstract: A vehicle proximity annunciator device reduces an occurrence of a pop noise without an additional circuit changing an output of a power amplifier. A capacitor is located between a connection point connecting multiple resistances generating a reference voltage and a ground terminal. The capacitor causes a rise-up time of the reference voltage to delay at a start of power supply to a power source terminal. A sound emission signal is increased at substantially a same level of the reference voltage so that a variation of a differential voltage between the reference voltage and the sound emission signal falls in a pre-determined range.

Abstract translation: 车辆接近信号器装置减少弹跳噪声的发生，而不需要额外的电路来改变功率放大器的输出。 电容器位于连接产生参考电压的多个电阻的连接点和接地端子之间。 在电源端子的供电开始时，电容器引起参考电压的上升时间延迟。 声音发射信号以基本上相同的参考电压水平增加，使得参考电压和声音发射信号之间的差分电压的变化落在预定范围内。