Frame system, method and apparatus for synchronizing three-dimensional eyewear
US8964007B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 1, 2010 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Feb 1, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2213/008
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An application for a three-dimensional television system includes content encoded with left/right frame indicators at a pre-determined location on each frame. For example, during display frames meant for a first eye, the set of pixels contain a first pattern while during display of frames meant for the second eye, the set of pixels contain a second pattern. A detector interfaced to the screen of the television detects the left/right indication and provides synchronization to shutters of three-dimensional eyewear. The detector is positioned over the set of pixels and determines which pattern is displayed, generating a synchronization signal based upon the patterns. The synchronization signal is then transmitted to three-dimensional eyewear where it is used to control the shutters. In some embodiments, a phased-locked loop is provided within the three-dimensional eyewear to continue operation during periods when the transmission of the synchronization signal is blocked or otherwise interrupted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.