专利名称：SYSTEM AND METHOD FOR
COMPENSATING ORIENTATION OF APORTABLE DEVICE
发明人：Alberto Marinoni申请号：US13712605申请日：20121212
公开号：US20130151195A1公开日：20130613
专利附图：
摘要：A system for compensating orientation of a portable device is provided with aprocessing unit for: determining a roll rotation angle of the portable device in a mobile
reference system associated thereto; and applying a rotation matrix, which is a function ofthe roll rotation angle, for transforming relative displacements of the mobile device inthe mobile reference system into corresponding displacements in a fixed referencesystem, of an inertial type, thus compensating the orientation of the portable device. Theprocessing unit determines the roll rotation angle, in the presence of dynamic
acceleration, by means of: acquisition of a roll angular velocity of the portable device by agyroscopic sensor fixed with respect thereto; and time integration of the same rollangular velocity.
申请人：STMicroelectronics S.r.l.
地址：Agrate Brianza IT
国籍：IT
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