Vehicle proximity notification device and vehicle proximity notification method
US10913390B2 · kind B2 · utility
0Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2020 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Mar 16, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R3/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.