07774155 is referenced by 233 patents and cites 636 patents.

Acceleration data which is output from an acceleration sensor is obtained. A rotation motion of an input device around a predetermined direction as a rotation axis is determined by comparing a start point in a two-dimensional coordinate system which is represented by the first acceleration data obtained in a predetermined period, and an end point in the two-dimensional coordinate system which is represented by the last acceleration data obtained in the predetermined period. Coordinate axes of the two-dimensional coordinate system are defined based on components of the two axial directions of the acceleration data, and an origin of the two-dimensional coordinate system represents a value of the acceleration data in the state where no acceleration including the acceleration of gravity acts upon the acceleration sensor. Motion data including at least the determined rotation motion is output.

Title
Accelerometer-based controller
Application Number
12/222787
Publication Number
7774155 (B2)
Application Date
August 15, 2008
Publication Date
August 10, 2010
Inventor
Masahiro Urata
Kyoto
JP
Ryoji Kuroda
Kyoto
JP
Kuniaki Ito
Kyoto
JP
Akio Ikeda
Kyoto
JP
Kenta Sato
Kyoto
JP
Agent
Nixon & Vanderhye P C
Assignee
Nintendo
JP
IPC
A63F 9/00
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