Energy absorption apparatus
US5371801A · kind A · utility
7Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1993 |
| Grant date | Dec 6, 1994 |
| Priority date | — |
| Expiry date | Jan 4, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/16
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Apparatus for absorbing acoustic energy directed toward a wall. The appars includes a piezoelectric layer intermediate the wall and the source of the acoustic energy. Circuitry attached to the output of the transducer compensates blocked and motional capacitances of the transducer so that the output signal generates real current for dissipation in a resistor thereby to minimize any echo reflected from the piezoelectric layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.