Guidance system using changeable signs
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United States of America Patent
Stats
-
Mar 20, 2001
Grant Date -
N/A
app pub date -
Dec 21, 1998
filing date -
Jun 19, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A guidance system for guiding a user to selected targets located within a defined area, such as a warehouse, museum, parking garage, etc., includes a portable unit to be carried by each user and having a memory for storing target information identifying a selected target within the defined area, and a transmitter for transmitting signals identifying the selected target within the defined area. The system further includes at least one changeable guidance sign at a predetermined location within the defined area for receiving signals transmitted by a portable unit and for displaying stored guidance information of the location of a target corresponding to a signal transmitted from the portable unit, and/or a plurality of target devices at the target location for receiving target signals transmitting by a portable unit and for indicating that a received target signal identifies the respective target.
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Family
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Cited Art Landscape
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