Virtual space teleconference system
US4400724A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 8, 1981 |
| Grant date | Aug 23, 1983 |
| Priority date | — |
| Expiry date | Jun 8, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A teleconference system for N conferees, N being greater than two, includes at least two separate stations. Each station has N conferee positions, confronting a virtual conference space, and corresponding conferee positions at each station have the same relative locations about the virtual conference space. At least one conferee position at each station is adapted to be occupied by a conferee in person. Surrogate conferees, which include a video display, a video camera, and a loudspeaker, occupy each conferee position not adapted to be occupied by a conferee in person. Each video display faces one conferee and displays the image of another conferee at a corresponding position at another station; the loudspeaker reproduces the voice of the other conferee. The video camera forms image signals of the one conferee and couples these signals to the display device of a surrogate conferee at a conferee position corresponding to the position of the one conferee at the other station. The system includes a shared graphic display system. A video display device is positioned at the center of the virtual conference space and has a display screen at about the level of a table top. A target area f…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.