Abstract
The following quote was obtained by the news editors from the background informa tion supplied by the inventors: “There are many cases in which physical devices are used in a variety of settings involving groups of people and/or objects, suc h as in the formation of posts and lines to demark crowd control areas or permit ted pathways for movement. These provide regions which may be fluid, and tend to require manpower to continually reconfigure them. The posts themselves provide opportunities for gathering/inferring/presenting/rendering/conveying information which may be optical, visual, or otherwise. Robotic devices of this sort may se rve a variety of purposes in both gathering/ inferring/presenting/rendering/conve ying information and demarking areas.”
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