Portable powered speaker
US7242785B2 · kind B2 · utility
25Cited by
12References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 3, 2004 |
| Grant date | Jul 10, 2007 |
| Priority date | — |
| Expiry date | Nov 22, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/2811
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A portable speaker system includes a telescoping enclosure containing at least two drivers. The telescoping enclosure includes an inner section nested within an outer section. Each of the inner section and the outer section includes at least one speaker driver. The telescoping enclosure is configurable in at least two positions, a retracted or collapsed position and an extended position. By extending the telescoping enclosure, greater channel separation and greater internal volume for the enclosure is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.