Sound generator
US9288600B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 16, 2014 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Sep 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2400/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sound generator includes a diaphragm including n sub-diaphragms (n, the amount of the sub-diaphragms); n voice coils corresponding to the sub-diaphragms; a signal source for outputting signals of n channels; n high-pass filters for receiving the signals of n channels and outputting n high frequency signals; n low-pass filters for receiving the signals of n channels and outputting n low frequency signals; a first mixer for mixing the n low frequency signals and then outputting a low frequency signal; and n second mixers for mixing the low frequency signal and the n high frequency signals, and then outputting n driving signals. The n driving signals actuates the n corresponding sub-diaphragms for producing stereo sounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.