System, method, and apparatus for detecting a projected point on computer controlled displayed images
US7475994B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 26, 2002 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | Jun 13, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0386
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system, method, and apparatus are described in which a light point projected on a computer controlled displayed image is detected. A light point is projected at the displayed image at essentially the same time as a notification signal is transmitted indicating that the light point is being projected. At least one of image capture and image display parameters are adjusted to increase the detectability of the light point within a predetermined time interval after receipt of the notification signal. The image of the displayed image and the light point are captured within the predetermined time interval and the captured image data is analyzed to detect the light point dependent on the adjusted parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.