Electronic Pen With a Three-Dimensional Force Sensor

A Vassilev, JM Ittel - US Patent App. 11/922,485, 2009 - Google Patents
The electronic pen comprises a lead equipped with a tip, an ink container and a three-
dimensional force sensor for measuring the forces applied on the lead by a user. The three-
dimensional force sensor, placed for example at a distance of less than 15 mm from the tip of
the lead, comprises a sensitive detection element placed in the axis of the tip of the lead The
pen comprises a first element made of flexible material arranged between the ink container
and the three-dimensional force sensor to transmit the forces applied on the lead to the three …
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