Remote lamp control apparatus
US6828733B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jul 10, 2003 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Jul 10, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/2834
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A remote lamp control system for controlling the off/on status and dimming of the illumination in a high infrared and EMI noise environment is disclosed. The transmitted control signal is an infrared beam containing a selected pulse-time code which the receiving circuit can reliably receive, recognize and process in an environment of high infrared noise typically produced by fluorescent lighting. For the lighting fixture control, upon recognition and verification of the selected pulse-time code, the microcontroller outputs a signal to cause the lamp in the fixture to illuminate or go dark, or to change level of illumination. In preferred embodiments the detector for the infrared beam is in a grounded housing which is mounted in the lighting fixture, the cable connecting the detector to the microcontroller are all surrounded with an electrically conductive shielding which is grounded to the microcontroller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.