Elevator system for transmitting information to passenger
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United States of America Patent
Stats
-
Jan 17, 2012
Grant Date -
Apr 16, 2009
app pub date -
Mar 14, 2007
filing date -
Mar 20, 2006
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An elevator system has a data receiving unit that receives service state data transmitted from a control device of an elevator. A pulse modulation unit separates the service state data received by the data receiving unit into first information data and second information data, pulse-modulates the first information data by using the second information data, and creates an LED blinking pattern. An LED drive unit drives a visible light LED placed in a cage of the elevator or on a platform of the elevator in response to the LED blinking pattern created by the pulse modulation unit.
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