Sound generation apparatus
US12177629B2 · kind B2 · utility
0Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2022 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Jul 20, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/15
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An apparatus may include a passive vibration member and an active vibration member connected to the passive vibration member and including first and second vibration portions arranged in parallel with each other. The apparatus may further include a driving apparatus configured to apply a first driving signal to the first vibration portion and a second driving signal to the second vibration portion, based on an input signal, to vibrate the first vibration portion and the second vibration portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.