Lighting fixture with motion detector and announcement device
US5726629A · kind A · utility
Inventor
Key dates
| Filing date | Feb 7, 1997 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Feb 7, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting fixture with a motion detector is improved by incorporating an announcement device into the lighting fixture. The announcement device is a sound recording and playback device. When a person or an object enters into an area monitored by the motion detector, the motion will be detected by the motion detector. The motion detector will then turn on the lighting fixture and the announcement device to playback an announcement or a message through an amplifier and a speaker. The announcement can either be a prerecoreded announcement by manufacturer such as a warning to intruder, a welcome greeting to visitor or guest, a short tune of music etc. or a personalized announcement recorded by a user. In the first embodiment, the lighting fixture, motion detector and announcement device are assembled together within the lighting fixture body and formed integral parts of the lighting fixture. In the second embodiment, two or more lighting fixtures assembled together with motion detectors are connected to a single announcement device which is installed as a separate device to minimize the number of announcement devices required to serve the monitored area. In the third embodiment, a sin…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.