Electric lamp and discharge devices: systems – Automatic substitution of the load device or electrode – Plural load devices with selective substitution of load...
Reexamination Certificate
2011-08-09
2011-08-09
Owens, Douglas W (Department: 2821)
Electric lamp and discharge devices: systems
Automatic substitution of the load device or electrode
Plural load devices with selective substitution of load...
C315S093000, C315S088000
Reexamination Certificate
active
07994723
ABSTRACT:
A lighting system, a lighting unit and a method for controlling a plurality of light sources are described. A lighting system comprises an intelligent electrical current supply12to supply an electrical current with modulated command data. A plurality of lighting units4, 6, 8are connected in series to the current supply12. Each lighting unit comprises a light source22, a controllable bypassing switch24to selectively bypass the light source and a control unit 26. The control unit receives the modulated command data and controls the bypassing switch24accordingly.
REFERENCES:
patent: 5672941 (1997-09-01), Callahan et al.
patent: 6239716 (2001-05-01), Pross et al.
patent: 6297724 (2001-10-01), Bryans et al.
patent: 2003/0057886 (2003-03-01), Lys et al.
Budde Wolfgang Otto
Erdmann Bozena
Chen Jianzi
Koninklijke Philips Electronics , N.V.
Owens Douglas W
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