Detection of and privacy preserving response to observation of display screen
US8973149B2 · kind B2 · utility
83Cited by
1References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 14, 2013 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | May 27, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2358/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The security and privacy of a user is enhanced by monitoring the background environment in which the user is working for changes. In an embodiment, a first or reference image is acquired using a front-facing camera of the user's computing device. A second or target image is acquired using the front-facing camera. The images are compared and an alert is generated if there is a change in background that exceeds a threshold. The change may be a person who has entered the environment and is watching the computing device screen. The alert may include reducing the visibility of information shown on the screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.