发明名称 PORTABLE ELECTRONIC APPARATUS
摘要 <P>PROBLEM TO BE SOLVED: To solve the problem that the accuracy in detecting a free fall is deteriorated due to the detection of centrifugal force in the free fall accompanied by rotation, because conventional free fall detection determines the free fall when all of three axes of a three-axis acceleration sensor are at a prescribed value or lower. <P>SOLUTION: In an imaging apparatus including a free fall detection means which determines a free fall when detected accelerations in three directions by the three-axis acceleration sensor are simultaneously at a prescribed threshold or lower, a free fall determination criterion by the three-axis acceleration sensor varies based on the state of cables. <P>COPYRIGHT: (C)2009,JPO&INPIT
申请公布号 JP2009140539(A) 申请公布日期 2009.06.25
申请号 JP20070313663 申请日期 2007.12.04
申请人 CANON INC 发明人 MAEDA MASAMINE
分类号 G11B33/14;G01P15/18;G11B21/12;G11B31/00;H04N5/225;H04N5/76;H04N5/765;H04N5/781 主分类号 G11B33/14
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