| 摘要 |
An input system according to the present invention includes: a plurality of input tools; and an input device configured to sense inputs of the input tools and recognize input locations. The input system is configured such that, upon sensing lights of optical styli, the input device alternately varies the sensing timing among the optical styli, and senses the light emitted by the optical styli according to the timing of the inputs of each optical stylus.
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