Color parallax-free camera and display
US5243413A · kind A · utility
143Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1992 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Sep 2, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Improved image quality is realized in a parallax-free teleconferencing display by increasing the camera light budget, that is, by increasing the light available to the camera, while maintaining a common optic axis between the camera and the display screen. Light-attenuating devices, such as color filters, are repositioned out of the path of light entering the camera. In this manner, image quality is improved while color capability is maintained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.