The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 2006
Filed:
Aug. 13, 2002
Günther Johler, Bregenz, AT;
Siegried Luger, Dornbirn, AT;
Bernhard Klocker, Dornbirn, AT;
Zumtobel Staff GmbH, Dornbirn, AT;
Abstract
A lighting system contains at least one controllable first light (NL), which is connected to a first current supply (L, N), and at least one controllable emergency current light (SL), which is connected to a further emergency current supply (P, N), separate from the first current supply (L, N). All lights have respective control devices associated therewith, all control devices being connected to a common bus (DD). A monitoring device () issues a monitoring signal corresponding to the condition of the first current supply (L, N) onto the bus (DD), which monitoring signal is evaluated at least by the control device of the emergency current light (SL) for the recognition of a disruption and for activation of an emergency current operation.