05061997 is referenced by 89 patents and cites 7 patents.

Apparatus for the control of visible conditions in various spatial environments is disclosed along with a method for operating said apparatus. The apparatus employs programmed central controller means to distribute control signals to remote devices for an adjustment of various local environment conditions. The control signals are developed in a novel manner employing optical means with the output signals therefrom being processed to provide visual information based upon segmenting the visual image into spatial regions and further processing these data signals to reflect the relative light contribution from light sources in the spatial environment being regulated. Typical controller apparatus operating by such means can adjust illumination in the building as well as further provide occupancy or fire detection.

Title
Control of visible conditions in a spatial environment
Application Number
7/541340
Publication Number
5061997
Application Date
June 21, 1990
Publication Date
October 29, 1991
Inventor
Inderpreet S Thukral
Glenmont
NY, US
William L Glennie
Rensselaer
NY, US
Mark S Rea
Rensselaer
NY, US
Agent
John F McDevitt
Assignee
Rensselaer Polytechnic Institute
NY, US
IPC
H04N 7/18
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