Smart sensor for always-on operation
US10812900B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2014 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Jun 11, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Smart sensors comprising one or more microelectromechanical systems (MEMS) sensors and a digital signal processor (DSP) in a sensor package are described. An exemplary smart sensor can comprise a MEMS acoustic sensor or microphone and a DSP housed in a package or enclosure comprising a substrate and a lid and a package substrate that defines a back cavity for the MEMS acoustic sensor or microphone. Provided implementations can also comprise a MEMS motion sensor housed in the package or enclosure. Embodiments of the subject disclosure can provide improved power management and battery life from a single charge by intelligently responding to trigger events or wake events while also providing an always on sensor that persistently detects the trigger events or wake events. In addition, various physical configurations of smart sensors and MEMS sensor or microphone packages are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.