High compliance headphone driving
US5181252A · kind A · utility
47Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1991 |
| Grant date | Jan 19, 1993 |
| Priority date | — |
| Expiry date | Oct 16, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R5/033
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An active noise reducing headset has a high compliance diaphragm. Structure limits the maximum excursion of the diaphragm so that the voice coil does not escape the air gap. Structure, such as indentations in the diaphragm, prevent unrecoverable diaphragm collapse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.