Pointing device user interface method, medium, and system robust against external noise
First Claim
1. A pointing system, comprising:
- a synchronization signal detection unit to detect a synchronization signal based on observed respective selective differnet emissions from a plurality of light sources;
a light source position information detection unit to detect position information for the light sources by driving a camera in synchronization with the synchronization signal; and
a pointed position calculation unit to calculate a position pointed to by a pointing element by using the position information of the light sources.
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Abstract
A pointing method, medium, and system detecting a synchronization signal from a plurality of light sources sequentially blinking at predetermined periods, detecting position information of the light sources by driving a video camera in synchronization with the synchronization signal, removing noise from among observed light sources by using the position information, and calculating a pointed to position by using the position information of the non-noise light sources. Provided is also a pointing reception method, medium, and system using a plurality of light sources blinking sequentially at predetermined periods, receiving the position information corresponding to light sources presenting the signals received by a pointing device and the position information pointed by the pointing device, and changing output data with respect to the pointed position information.
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Citations
33 Claims
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1. A pointing system, comprising:
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a synchronization signal detection unit to detect a synchronization signal based on observed respective selective differnet emissions from a plurality of light sources; a light source position information detection unit to detect position information for the light sources by driving a camera in synchronization with the synchronization signal; and a pointed position calculation unit to calculate a position pointed to by a pointing element by using the position information of the light sources. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A pointing reception system, comprising:
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a light source output unit to emit light to a pointing device by selectively using respective plurality of light sources differently; a data reception unit to receive position information corresponding to a pointed to position of the pointing device, from the pointing device; and a display control unit to change output data for a display based on the position information corresponding to the pointed to position of the pointing device. - View Dependent Claims (12, 13, 14, 15)
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16. A pointing and pointing reception system, comprising:
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a synchronization signal detection unit to detect a synchronization signal based on observed respective selective different emissions from a plurality of light sources; a light source position information detection unit to detect position information for the plurality of light sources by driving a camera in synchronization with the synchronization signal; a pointed position calculation unit to calculate a position pointed to by a pointing element by using the position information of the light sources; a light source output unit to control the selective different emissions of light by the plurality of light sources; a display control unit to change output data for a display based on the pointed to position of the pointing element. - View Dependent Claims (19, 20)
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17. A pointing method, comprising:
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detecting a synchronization signal based on observed respective selective different emissions from a plurality of light sources; detecting position information for the plurality of light sources by driving a camera in synchronization with the synchronization signal; and calculating a position pointed to by a pointing device by using the position information of the plurality of light sources. - View Dependent Claims (18, 21, 22, 23, 24, 25, 26, 32)
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27. A method of implementing a user interface, comprising:
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emitting light by selectively using respective plurality of light sources differently; receiving position information corresponding to a pointed to position of a pointing device, from the pointing device; and changing output data for a display based on the position information corresponding to the pointed to position of the pointing device. - View Dependent Claims (28, 29, 30, 31, 33)
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Specification