Apparatus and method for display control using ambient light measurement signal from an infrared receiver
US7868294B2 · kind B2 · utility
4Cited by
0References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2008 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | May 15, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/116
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system having an infrared receiver is shown, where the system includes an infrared receiver circuit configured to receive an infrared data signal using a receive photodiode and compensate for an ambient light level incident on the receive photodiode by generating a DC ambient current signal, where the DC ambient current signal is accessible external to the infrared receiver circuit. The system also includes a control circuit configured to receive the DC ambient current signal and, responsive thereto, determine the ambient light level and generate a display illumination control signal accordingly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.