Laminated piezoelectric matrix switch
US4071785A · kind A · utility
13Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1976 |
| Grant date | Jan 31, 1978 |
| Priority date | — |
| Expiry date | Apr 30, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S310/80
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A matrix switch comprises a lamination of several layers in which first and second piezoelectric films have row and column electrodes, respectively, arranged in parallel on their first surfaces. A ground electrode is between said row and column electrodes. The operating electrodes are at cross points which are deformable to result in two piezoelectric output signals from each cross point; one between ground and an operating row electrode, and the other between ground and an operating column electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.