Computer screen power management through detection of user presence
US6650322B2 · kind B2 · utility
66Cited by
7References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2000 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Sep 5, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus is described for detecting presence of a user. The apparatus includes at least one thermal sensor to sense temperature around a define area of a computer system and a user presence detection subsystem coupled to the thermal sensor. The user presence detection subsystem determines presence of a user by analyzing signals output by the thermal sensor during a sampling period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.