Tiered wakeup strategy
US9665762B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2013 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Apr 20, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/13
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A biometric authentication apparatus and method is disclosed which may comprise a biometric authentication unit which may comprise: a biometric object sensor comprising sensor elements and a sensor computing device; a wake-on-event logic controller maintaining the sensor computing device in one of a powered-off or powered down mode, and including a bulk biometric object detector configured to detect a biometric object on or in the vicinity of the sensor elements and to power-on or power-up the sensor computing device responsive to the detection of the biometric object on or in the vicinity of the sensor elements; the sensor computing device configured to analyze one or more lines of biometric object image comprising a partial biometric object image and determine if the partial biometric image belongs to a biometric object desired to be imaged to obtain a complete biometric object image, and to provide a power-on or power-up signal to a host electronic device computing device when the partial biometric image is determined to belong to a biometric object desired to be imaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.