Systems and methods for presence detection
US8581974B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2010 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Jun 17, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/507
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods are provided for presence detection using an image system. The image system may be a camera that is integrated into an electronic device. In some embodiments, the image system can accommodate multiple operating modes of the electronic device. For example, when the electronic device is operating in a normal power mode, control circuitry of the image system can detect when a user has left and is no longer using the electronic device. When the electronic device is operating in a power saving mode, the control circuitry can detect user presence (e.g., when a user has come back to the electronic device). In some embodiments, the control circuitry can adjust for both gradual and sudden light changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.