Switching method using a frequency domain piezoelectric switch
US6060817A · kind A · utility
7Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1998 |
| Grant date | May 9, 2000 |
| Priority date | — |
| Expiry date | Apr 6, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/965
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A frequency domain switch (100) utilizes an array of cantilevered beams (108) laminated with a piezoelectric material (126). Each of the beams has a unique geometry, and produces a sinusoidal electrical signal in the piezoelectric film that is assignable only to one of the cantilevered beams. When a free end of one of the cantilevered beams is deflected, it produces a signal that is analyzed by suitable circuitry (410-440) to read the position of the switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.