Control device, control method, and projection system
US10860205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2018 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Feb 9, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4122
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is a control device that projects an image representing input information onto a projection surface so as to follow an input of the input information, with an effect in accordance with the type of the projection surface. As the projection surface, a thin sheet material attached on a wall surface is prepared, for example. The color of the thin sheet material is a dark color, for example, and in time with projection of the image representing a handwritten character or picture, a sound, which will come out when the character or the picture is drawn with a chalk on a chalkboard, is output from a speaker installed on the back side of the projection surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.