Methods and apparatus to detect an operating state of a display
US9027043B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 24, 2006 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Dec 5, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6581
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus to detect an operating state of a display are disclosed. An example device to detect an operating state of a display includes an optical fiber, an optical-to-electrical converter, and a logic circuit. The optical fiber is optically coupled to a light source of the display. The light energy source is configured to emit light. The optical-to-electrical converter is coupled to the light source via the optical fiber and configured to convert light from the light source into an electrical signal. The logic circuit is coupled to the optical-to-electrical converter and configured to generate an output signal indicative of the operating state of the display based on the electrical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.