Vehicle proximity notification device, vehicle and vehicle proximity notification method
US10994653B2 · kind B2 · utility
0Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2020 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Mar 18, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/13
- WIPO fieldTransport
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.