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 from a selective emission of each light source of a plurality of light sources;
a light source position information detection unit to detect position information of each of the plurality of light sources, using a camera that is driven in synchronization according to the detected synchronization signal, such that a scanning sequence corresponds to the selective emission of one of the light sources relative to the other light sources;
a noise removal unit to determine a position of a noise light source, among the plurality of light sources, and remove the noise light source, using the position information of at least one non-noise light source; 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,wherein the pointing element comprises the synchronization signal detection unit.
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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
40 Claims
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1. A pointing system, comprising:
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a synchronization signal detection unit to detect a synchronization signal from a selective emission of each light source of a plurality of light sources; a light source position information detection unit to detect position information of each of the plurality of light sources, using a camera that is driven in synchronization according to the detected synchronization signal, such that a scanning sequence corresponds to the selective emission of one of the light sources relative to the other light sources; a noise removal unit to determine a position of a noise light source, among the plurality of light sources, and remove the noise light source, using the position information of at least one non-noise light source; 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, wherein the pointing element comprises the synchronization signal detection unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A pointing reception system, comprising:
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a light source output unit to emit light to a pointing device, such that a respective light source of a plurality of light sources is selectively emitted differently relative to the remaining light sources, the emitted light including a synchronization signal corresponding to the selective emission of each light source of the plurality of light sources; a data reception unit to receive position information corresponding to a pointed to position of the pointing device, from the pointing device, the position information being used to determine a position of a noise light source among the plurality of light sources and to remove the noise light source using position information of at least one non-noise light source; 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 (14, 15, 16, 17, 18)
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19. A pointing and pointing reception system, comprising:
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a synchronization signal detection unit to detect a synchronization signal from a selective emission of each light source of a plurality of light sources; a light source position information detection unit to detect position information for the plurality of light sources, using a camera that is driven in synchronization according to the detected synchronization signal, such that a scanning sequence corresponds to the selective emission of one of the light sources relative to the other light sources; a noise removal unit to determine a position of a noise light source, among the plurality of light sources, and remove the noise light source, using position information of at least one non-noise light source; 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; and a display control unit to change output data for a display based on the pointed to position of the pointing element, wherein the pointing element comprises the synchronization signal detection unit. - View Dependent Claims (20, 21)
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22. A pointing method, comprising:
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detecting a synchronization signal based on an observed different emission of a respective light source of a plurality of light sources relative to the remaining light sources; detecting position information for the plurality of light sources, using a camera that is driven in synchronization according to the detected synchronization signal; determining a position of a noise light source, among the plurality of light sources, and removing the noise light source, using the position information of at least one non-noise light source of the plurality of light sources; and calculating a position pointed to by a pointing device by using the position information of the plurality of light sources. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method of implementing a user interface, comprising:
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emitting light by selectively emitting a respective light source of a plurality of light sources differently relative to the remaining light sources, the emitted light including a synchronization signal corresponding to the selective emission of each light source of the plurality of light sources; receiving position information corresponding to a pointed to position of a pointing device, from the pointing device, the position information being used to determine a position of a noise light source among the plurality of light sources and to remove the noise light source using position information of at least one non-noise light source; 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 (35, 36, 37, 38, 39, 40)
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Specification