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US 8,282,487 B2Granted
Determining orientation in an external reference frame
AssigneeMicrosoft Corporation
InventorsAndrew Wilson, Steven Michael Beeman
Life of this patent
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Abstract
Orientation in an external reference is determined. An external-frame acceleration for a device is determined, the external-frame acceleration being in an external reference frame relative to the device. An internal-frame acceleration for the device is determined, the internal-frame acceleration being in an internal reference frame relative to the device. An orientation of the device is determined based on a comparison between a direction of the external-frame acceleration and a direction of the internal-frame acceleration.
Claims24
A system comprising:
- an orientation inferring subsystem including a monitor configured to visually observe a motion of an object relative to the monitor;
- a position inferring subsystem including a target monitor coupled to the object and configured to determine a coarse position of the object relative to a target separate from the object;
- and
- a gaming subsystem for using the observed motion from the orientation inferring subsystem and the determined coarse position from the position inferring subsystem to control a game function.
1 more element
An apparatus comprising:
- a monitor configured to visually observe a motion of an object relative to the monitor;
- a target monitor coupled to the object and configured to determine a coarse position of the object relative to a target separate from the object;
- and
- a gaming device for processing the observed motion from the monitor and the determined coarse position from the target monitor to control a game function.
1 more element
A method comprising:
- observing a motion of an object relative to a monitor;
- determining a coarse position of the object relative to a target separate from the object;
- and
- processing the observed motion from the monitor and the determined coarse position from a target monitor;
- and
- controlling a game function with the processed observed motion and determined coarse position.
3 more elements
Dependencies are inferred from the claim text.