Wide band vibrational stimulus device
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United States of America Patent
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-
Mar 19, 2013
Grant Date -
Aug 13, 2009
app pub date -
Jan 5, 2009
filing date -
Apr 14, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An eccentric mass (EM) motor in a vibrotactile transducer provides a wide band vibrational stimulus to a mechanical load in response to an electrical input. The eccentric mass and motor may form part of the transducer actuator moving mass, which is in contact with a load, i.e, the skin of a user. The moving mass and the actuator housing may be in simultaneous contact with the load. The moving mass may be guided by a spring between the actuator housing and the moving mass. The load, moving mass, spring compliance, and housing mass make up a moving mass resonant system. The spring compliance and system component masses may be configured to maximize the actuator displacement and/or tailor the transducer response to a desired level. This configuration may be implemented as a low-mass wearable wide-band vibrotactile transducer.
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