Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 12, 2008
Patent Application Number
11198384
Date Filed
August 5, 2005
Patent Primary Examiner
Patent abstract
A control system comprising a control input device having a movable magnet, a pole-piece frame arrangement positioned about the magnet and positioned therein at least two magnetic flux sensors for sensing movement of the magnet in a given direction. The control system further comprises a monitoring arrangement for monitoring the output signal of each of the sensors and permits the input device to control the system only when the output of the sensors are within a predefined range. This multiple sensing provides a fail-safe in the event that one of the sensors generates an erroneous signal.
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