Devices and methods of sensing
US9494995B2 · kind B2 · utility
6Cited by
10References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2013 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Jan 29, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2219/066
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method is disclosed, including detecting a signal representative of an object with a piezoelectric device. A display is powered up from a sleep mode based upon the detected signal. The display can be powered up based upon a comparison of the signal to a threshold value. The threshold value can be a predetermined value or based upon a previous signal detected by the piezoelectric device or a previous signal detected by the piezoelectric device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.