Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 2, 2009
Patent Application Number
10573588
Date Filed
May 31, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
In an elevator apparatus, a control device obtains car information including at least one of car position information and car speed information based on a main detection signal from a main sensor unit. An auxiliary sensor unit detects arrival of a car at a preset reference position with in a hoistway to generate an auxiliary detection signal. The control device makes corrections to the car information based on the auxiliary detection signal.
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