Interactive projection system
US8842096B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2011 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Feb 24, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0418
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An interactive projection system, apparatus, and methods for their use are provided. The system includes a projection unit that projects an image of a user interface onto a projection surface. At least one vision sensor is provided that is configured to sense a location of an infrared light source. A computing device that is configured to execute applications to provide the user interface and to determine corresponding outputs based on inputs received by the vision sensor is also provided. An infrared input device, or stylus, is employed by a user to provide infrared light inputs at desired locations with respect to the projected user interface. Additionally, a plurality of styli, each emitting a different respective wavelength of infrared light is also useable to provide multiple simultaneous inputs to the system. An equal plurality of vision sensors may also be employed to separately sense inputs from a respective stylus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.