Invention Grant
- Patent Title: Gravity axis determination apparatus and mobile terminal apparatus using the same
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Application No.: US12591432Application Date: 2009-11-19
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Publication No.: US08412277B2Publication Date: 2013-04-02
- Inventor: Kazunori Fujiwara
- Applicant: Kazunori Fujiwara
- Applicant Address: JP Tokyo
- Assignee: Oki Semiconductor Co., Ltd.
- Current Assignee: Oki Semiconductor Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Rabin & Berdo, P.C.
- Priority: JP2008-297923 20081121
- Main IPC: H04M1/00
- IPC: H04M1/00 ; H04B1/38
Abstract:
A gravity axis determination apparatus which can determine the gravity direction in a short time. The apparatus is low in cost and has a simple construction. Data values of acceleration data trains in a same time zone are mutually compared and one of the three axes is determined as a gravity axis.
Public/Granted literature
- US20100130258A1 Gravity axis determination apparatus and mobile terminal apparatus using the same Public/Granted day:2010-05-27
Information query
