Device for the presentation of images to the passengers of moving vehicles
US5580140A · kind A · utility
63Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1993 |
| Grant date | Dec 3, 1996 |
| Priority date | — |
| Expiry date | Feb 16, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F2019/221
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for projecting images, advertisements and the like to passengers of moving vehicles. A projector is placed on the vehicle and it projects an image on the walls of a train tunnel, clouds near an airplane, etc. as the vehicle moves. A technique is provided for correcting distortion caused by the positional changes between the vehicle and the projection surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.