3D stereoscopic shutter glass system
US6727867B2 · kind B2 · utility
17Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Aug 3, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2213/008
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A first embodiment of the invention permits an extension of battery life through detection of the display synchronization signals of a computer and a power management system. The power management system also eliminates need for batteries through use of a 5V power source from pin 9 of the VGA port. A second embodiment improves the ease of use and the utility of the 3D system through removable glasses with improvements over the previous design. These embodiments have improved manufacturability through the use of design that is tolerant of poor quality, low cost components with low electrical tolerances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.