Microphone
US7894622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2006 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Dec 21, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A microphone includes a case, a circuit board, a plate, a cover/button element and an elastic element. The circuit board is disposed in the case and includes a transducer for receiving and converting sound waves into electric signals and a switch operable for turning on and off the circuit board. The plate is disposed in the case and defines two slots and an aperture through which the switch is exposed. A cover/button element includes at least two hooks inserted through the slots defined in the plate so that the cover/button element is movable between a normal position away from the switch of the circuit board and a pushed position in contact with the switch while always covering the case. The elastic element is sandwiched between the plate and the cover/button element for returning the cover/button element to the normal position from the pushed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.