Semiconductor digital loudspeaker array
US6403995B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 2001 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | May 21, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A high performance unary digital loudspeaker system is disclosed; providing cost-effective and efficient performance, and providing the option to integrate multiple speaker elements or other related circuitry, and comprising a semiconductor substrate (102), an electrode (104) disposed upon the substrate, an insulator element (106) disposed upon the electrode forming a frame of material, an electrically conductive membrane (108) disposed upon the insulator element so as to form a chamber (110) between the electrode and the membrane, the membrane having a flexible support section (112) formed therein, and a control circuit (200) coupled (114, 116) to the membrane and the electrode, and adapted to provide a variable potential therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.