Is a
Patent attributes
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
David M. Birnbaum0
Danny A. Grant0
Date of Patent
April 15, 2014
0Patent Application Number
124099870
Date Filed
March 24, 2009
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A handheld computer interface includes an enclosure, a mass coupled to the enclosure, and an actuator coupled to the mass to change a position of the mass relative to the enclosure. When the actuator receives a signal indicating a change in the center of mass of the interface, it changes the position of the mass.
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