Receiver assemblies
US8401215B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2010 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Dec 9, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R25/48
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A receiver is provided having a balanced armature motor mechanically interconnected to a displaceable diaphragm component. A front volume changes as the displaceable diaphragm component moves. The front volume is connected to a port. A rear volume changes oppositely to the front volume as the displaceable diaphragm moves. An acoustic channel connects to the port and is also connected to a sound outlet. The sound outlet allows acoustic energy to exit from the acoustic channel. A first acoustic pressure is generated in the front volume as the balanced armature motor moves the diaphragm. The acoustic channel and the internal volume are divided by a common wall section, wherein the common wall section is defined by at least one of the walls of the housing which also provides a portion of at least one wall for the acoustic channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.