Illumination system

Details Illumination system Illumination system

2009-08-25

2011-11-15

Ismail, Shawki S (Department: 2819)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Plural load device regulation

C315S152000

Reexamination Certificate

active

08058819

ABSTRACT:
An illumination system includes a plurality of illumination devices and a number of sensor blocks. In each of the sensor blocks, an active sensor is provided to detect a moving object traveling within a detection area thereof and plural amplifier circuits is provided to divide a detection signal transmitted from the active sensor into plural frequency bands and for amplifying signal components of the frequency bands. Provided in a one-to-one relationship with the amplifier circuits is plural judgment units that, based on the amplified signal components of the frequency bands provided from the amplifier circuits, judges whether the moving object is travelling at a travel velocity corresponding to any one of the frequency bands. A control unit is also provided to perform a turn-on control on at least one of the illumination devices based on judgment results made by the judgment units.

REFERENCES:
patent: 4400700 (1983-08-01), Rittenbach
patent: 1 408 276 (2004-04-01), None
patent: 1408276 (2004-04-01), None
patent: 2 444 734 (2008-06-01), None
patent: 2 455 504 (2009-06-01), None
patent: 03/098977 (2003-11-01), None
Kluth Manfred; Illumination system using detectors, Apr. 14, 2004, EP1408276 Abstract English Translation.

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