This invention describes a system for finding physical items in a specific area. It works by making each item flash a unique light pattern using its built-in lights. A camera then takes a picture, decodes the light pattern to identify the item, and uses the camera's own location to figure out where the item is. The system specifically uses a binary search method to control which items flash their lights, helping to quickly narrow down the target item.
Why it matters: Filed before modern smartphone cameras and advanced image processing were commonplace. The ability to reliably capture and decode visual patterns from numerous assets has significantly improved, making the system more practical and accurate.
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