Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Sinnosuke Nagasawa

Fumiyasu Konno

Masahide Onishi

Yoshio Nakamura

Kazuhisa Kotegawa

Ichiro Ohno

Koichi Sakamoto

Masaharu Takahashi

Misao Kanba

Satoshi Kosugi

A vehicle proximity notification device that notifies proximity of a vehicle by causing a speaker disposed outside a vehicle interior of the vehicle to output a warning sound. The vehicle proximity notification device includes: a controller that, when a sound pressure of a sound collected by a microphone disposed outside the vehicle interior exceeds a first threshold, sets a sound pressure of the warning sound output by the speaker to a level lower than the sound pressure of the warning sound output by the speaker when the sound pressure of the sound collected by the microphone is lower than or equal to the first threshold.

Vehicle proximity notification device and vehicle proximity notification method

Microphone with connector

A sound output device is configured to be installed in a vehicle. The sound output device includes a driving-status detector for detecting a driving status of the vehicle, a sound signal generator for generating a reference signal in response to the detected driving status, first and second units for processing the generated reference signal, first and second sound output parts for outputting the reference signals processed by the first and second units. The first unit includes a phase shifter for shifting a phase of the reference signal such that the reference signals output from the first sound output part and the second sound output part have a phase difference between the respective reference signals. This sound output device allows a passenger at a predetermined position to hear the sound in a preferable condition.

Voice output device

Growing community of inventors

Osaka, Japan

Sinnosuke Nagasawa