Audio transducer having piezoelectric device
US5727076A · kind A · utility
8Cited by
9References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 2, 1994 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | May 2, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R17/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio transducer is disclosed that has a piezoelectric driving element and a diaphragm having a sheet configured as a flat, curvilinear plane. A lightweight, rigid bridge element connects the piezoelectric device to the diaphragm. Several bridge configurations are shown that emphasize or reduce various characteristics such as frequency response and vertical dispersion. Also, several diaphragm configurations are disclosed in which the diaphragms have as few as a single diaphragm sheet or as many as four sheets. In each case the diaphragm sheets are configured as a flat, curvilinear plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.