Background image control by presenter position
US7111940B2 · kind B2 · utility
2Cited by
1References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 4, 2004 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Dec 22, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/26
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for displaying a series of images on a projection screen as a function of a position of a presenter in front of the projection screen. First, the width of the screen is divided into a number of segments of selected widths. The positions of each of the segments is stored in a memory. The position of the presenter is compared with the stored segments to identify the segment currently occupied by the presenter. An image control signal is generated when the presenter changes position from a first segment to a second segment
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.