Projector as an input and output device
US6764185B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2003 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Aug 7, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An interactive display system includes a sensor for sensing a relationship between a mobile coordinate frame fixed to a moving projector, and a stable coordinate frame fixed to a stationary display surface in the real world. An output image to be projected on the display surface is partitioned into a black image portion having a fixed relationship to the mobile coordinate frame, a stable image portion within the block image portion having a fixed relationship to the stable coordinate frame, and a mobile image portion within the stable image portion having a fixed relationship to the mobile coordinate frame. The mobile portion can be used as a pointer within the stable portion in a mouse-cursor like manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.