Backpack with integrated speakers
US7440581B2 · kind B2 · utility
12Cited by
59References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 24, 2006 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Feb 10, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/023
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The personal wearable speaker system includes a backpack having a plurality of substantially hollow tubular ducts formed from a substantially flexible material designed to promote superior sound wave flow and anti-collapse (pinch) functionality, and a plurality of pairs of sound transducers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.