Device with a controlled displacement membrane
US10003008B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2013 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Oct 10, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Membrane device comprising a support, a membrane suspended on the support, a first actuator in contact with the membrane designed to apply a force on the membrane, a second actuator in contact with the membrane designed to apply a force on the membrane, means of determining the position of the membrane relative to the support and control means of the first and second actuators, said control means applying a deformation signal to one of the first and second actuators to deform the membrane and applying a control signal to the other of the first and second actuators to control displacement of the membrane, application of the control signal being determined by the membrane position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.