Headband audio system with acoustically transparent material
US5680465A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 5, 1995 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Apr 5, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/023
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device with a speaker system and adapted to wear on the head of a wearer, such as a headband, is provided. Transducers are situated in a wearable device and positioned on opposite sides of the wearer's head, adjacent the ears. In one embodiment, the transducers share a common enclosure and are driven 180.degree. out of phase, so that back pressures cancel and low frequency response is enhanced. In another embodiment, two vented enclosures are provided, each with its own transducers. In other embodiments, acoustic concentrators can be incorporated to direct the audio more directly toward the wearer's ears. The speaker system is connected to or in communication with a conventional source of audio signals, such as a radio, tape player, CD player, cellular telephone or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.