Time-sensitive article tracking device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Feb 1, 2005
Issued Date -
N/A
app pub date -
Nov 21, 2002
filing date -
May 8, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
An article tracking device that can be attached to or otherwise located with movable and non-moveable articles has a memory that stores a subset of spatial zones and corresponding time intervals during which the spatial zones are valid. The device is adapted to periodically read the current time and its current position from the position determination system and to determine whether a spatial zone corresponding to the current time exists. If a corresponding spatial zone exists, the device determines whether its current location is within the spatial zone and performs an action in response to this determination.
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