Structure around a speaker unit and applied electric or electronic apparatus thereof
US6904157B2 · kind B2 · utility
17Cited by
19References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 2001 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Jul 31, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/2834
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A compact lightweight speaker system without a resonance box that can reproduce the original sound with high fidelity. A speaker unit is located on a baffle board with a vibration absorbing member between a frame of the speaker unit and the baffle board. Furthermore, an acoustic resonance reflecting board of a vertical flat board type based on the operating principle of a passive radiator is formed by the baffle board and a flat board being similar to the baffle board. As a result, a compact smart design will be produced. It is applicable to an electric or electronic apparatus which produces sound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.