Industry Patents

Patent: 6331756

Method and Apparatus for Digital Communications with Multiparameter Light Fixtures

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Patent Number: 6331756 
Title: Method and Apparatus for Digital Communications with Multiparameter Light Fixtures 
Abstract: A typical light fixture is an integral unit that has a lamp assembly and a communications node to control the lamp assembly. Lighting systems contain many such light fixtures. One type of lighting system has at least two communications systems that interconnect the light fixtures. A digital controller is connected to one of the communications systems, at least one of the light fixtures of that communications system is a designated gateway for sending control signals to the other communications system. Another type of lighting system has two digital controllers connected to respective communications systems. Each of the communications systems interconnects many light fixtures, at least one of which has two communications nodes respectively connected to the communications systems. A third type of lighting system mixes combines the first and second types.  
Country of Issue: US 
First Named Inventor: Belliveau 
Assignee:  
Continuation or Divisional of:  
International Classification: F21V 33/00 
US Classification: 315/316 
Issue Date: 12-18-2001 
Filing Date: 09-10-1999 
Application : 09/394300 
Notes: High End Systems 
Link to Patent at freepatentsonline.com: 6331756 at Freepatentsonline 
Link to World Patent Family1: World Patent Family at European Patent Office 
Link to Google Patents1: 6331756 at Google Patents 

 

1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.

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