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公开(公告)号：US09860638B2
公开(公告)日：2018-01-02
申请号：US14916346
申请日：2014-09-11
Inventor： Ichiro Ohno , Fumiyasu Konno , Shinnosuke Nagasawa , Shigeharu Sumi
IPC: H04R3/00 , H04R29/00 , B60Q5/00 , B60Q11/00 , B60L3/00 , G01R3/00 , G01R31/00 , G01R31/02 , G01R31/28
CPC classification number: H04R3/007 , B60L3/00 , B60L2270/42 , B60Q5/008 , B60Q11/00 , G01R31/007 , G01R31/025 , G01R31/2825 , G10K15/02 , H04R29/001 , H04R2420/03
Abstract: An inspection signal generator of an acoustic device outputs a first inspection signal. An amplifier receives a first reference signal, and outputs a second inspection signal according to the first inspection signal. A first detector is electrically connected to an output side of the amplifier, and outputs a first detection signal based on the second inspection signal. The first detector is electrically connected to the output side of the amplifier, and outputs the first detection signal based on the second inspection signal. A determiner compares a first detection signal output from the first detector with a preset determination reference signal so as to detect electrical abnormality between a ground terminal and an output terminal electrically connected to the output side of the amplifier.
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Patent Agency Ranking
公开(公告)号：US10994653B2
公开(公告)日：2021-05-04
申请号：US16822679
申请日：2020-03-18
Inventor： Fumiyasu Konno , Ichiro Ohno , Shinnosuke Nagasawa
Abstract: A vehicle proximity notification device for notifying a vehicle approach using a first speaker and a second speaker provided in the vehicle includes a sound source that outputs a signal that corresponds to a sound for notifying an approach of the vehicle and that is input to the first speaker and the second speaker; and an information processor that changes a phase of at least one signal out of a signal input to the first speaker and a signal input to the second speaker in accordance with a speed of the vehicle.
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公开(公告)号：US12269495B2
公开(公告)日：2025-04-08
申请号：US17944455
申请日：2022-09-14
Inventor： Mitsuhiro Tani , Shinnosuke Nagasawa , Fumiyasu Konno
Abstract: A vehicle approach notification system includes a filter; a notification sound controller which generates a signal corresponding to a notification sound for notifying of approaching of a vehicle, based on a sound signal obtained from a notification-sound sound source; and a setter which obtains vehicle information of the vehicle, and sets, according to the vehicle information, at least one of the notification-sound sound source to be used in generation of the notification sound, a filter property to be applied to the filter, or a control parameter to be applied to the notification sound controller in generation of the notification sound. The notification sound controller outputs the signal generated, through the filter to an exterior loudspeaker provided to the vehicle.
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公开(公告)号：US10993028B2
公开(公告)日：2021-04-27
申请号：US16822590
申请日：2020-03-18
Inventor： Fumiyasu Konno , Ichiro Ohno , Shinnosuke Nagasawa
Abstract: A sound processing device includes: a sound source that outputs a common sound signal to a first speaker for a vehicle exterior and a second speaker for a vehicle interior that are mounted on the vehicle; a notification sound controller that outputs a signal corresponding to a notification sound for notifying an approach of the vehicle to the first speaker based on the sound signal output from the sound source; and an acceleration sound controller that outputs a signal corresponding to an acceleration sound of the vehicle to the second speaker based on the sound signal output from the sound source.
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公开(公告)号：US09914391B2
公开(公告)日：2018-03-13
申请号：US15591282
申请日：2017-05-10
Inventor： Shinnosuke Nagasawa , Fumiyasu Konno
CPC classification number: B60Q5/008 , B60Q5/00 , B60Y2306/11 , H04R3/005 , H04R3/04 , H04R3/12 , H04R29/00 , H04R2400/01 , H04R2430/01 , H04R2499/13 , H04S7/301
Abstract: A vehicle proximity notification apparatus has first and second loudspeakers which output warning sound notifying proximity of a vehicle to an outside, and an adjusting unit. The adjusting unit adjusts the sound output from the first loudspeaker so that a sound collecting signal, which is obtained when the second loudspeaker collects the sound output from the first loudspeaker, coincides with a reference signal, in a state in which the first loudspeaker functions as a sound outputting element and the second loudspeaker functions as a sound collecting element. In addition, the adjusting unit adjusts the sound output from the second loudspeaker so that a sound collecting signal, which is obtained when the first loudspeaker collects the sound output from the second loudspeaker, coincides with a reference signal, in a state in which the second loudspeaker functions as a sound outputting element and the first loudspeaker functions as the sound collecting element.
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公开(公告)号：US10391935B2
公开(公告)日：2019-08-27
申请号：US16072928
申请日：2017-01-24
Inventor： Fumiyasu Konno , Shinnosuke Nagasawa , Ichiro Ohno , Koichi Sakamoto
Abstract: Provided is a vehicle approach notification device that can easily output a warning sound in which a discomfort feeling brought to an occupant is reduced while ensuring a necessary sound pressure. A vehicle approach notification device includes: a sound source; first and second amplifiers; a first speaker system including a first speaker and a second speaker that outputs a sound having an opposite phase to a sound output from the first speaker; and a second speaker system including a third speaker that outputs a sound having a same phase as the sound output from the first speaker and a fourth speaker that outputs a sound having an opposite phase to the sound output from the third speaker, wherein the first speaker system and the second speaker system are disposed so that the first speaker and the third speaker are located closer to a longitudinal center plane of the vehicle than the second speaker and the fourth speaker.
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