Teleconferencing terminal with camera behind display screen
US4928301A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1989 |
| Grant date | May 22, 1990 |
| Priority date | — |
| Expiry date | Oct 31, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A teleconferencing terminal which enables teleconference participants to communicate with eye contact is disclosed. The terminal alternates rapidly between an image capture mode and an image display mode. Illustratively, during operation in the image capture mode a front surface screen is made transparent and a video camera acquires a head-on image of a teleconference participant. During operation in the image display mode, the front surface screen is made translucent for display of a video image via rear projection. Preferably, operation in the image capture mode takes place during the vertical retrace interval of the image to be displayed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.