System for explaining an exhibit using spectacle-type displays
US5691737A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1994 |
| Grant date | Nov 25, 1997 |
| Priority date | — |
| Expiry date | Sep 14, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/398
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An exhibit explaining system to enable a plurality of visitors to receive an explanation of an exhibit at their own pace. Spectacle-type displays 51-1 to 51-10 are provided, the frequencies f1 to f10 of a carrier wave being set to be different from each other. Image generating devices 61-1 to 61-10 are provided to correspond to the spectacle-type displays 51-1 to 51-10. When operating explanation request button 52-1 of the spectacle-type display 51-1, a VTR 76-1 of the image generating device 61-1 with the corresponding channel is reproduced, which is output from a transmitter-receiver circuit 72-1 to the spectacle-type display 51-1 through an antenna 71-1 on a radio wave. In the spectacle-type display 51-1, this radio wave is demodulated to observe an image on an LCD thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.