SYSTEM AND METHOD FOR COMPENSATING ORIENTATION OF

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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