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Information input device and non-transitory computer-readable medium storing computer-readable instructions

  • US 9,563,289 B2
  • Filed: 09/10/2014
  • Issued: 02/07/2017
  • Est. Priority Date: 09/24/2013
  • Status: Active Grant
First Claim
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1. An information input device comprising:

  • a detection portion configured to detect a position of a writing portion being in contact with or close to the detection portion;

    a processor; and

    a memory storing computer-readable instructions, wherein the computer-readable instructions, when executed by the processor, cause the information input device to perform processes comprising;

    (a) acquiring position information at a predetermined time interval, the position information being information of positions detected by the detection portion;

    (b) setting, as reference position information, first position information indicating a position detected by the detection portion;

    (c) setting, as further position information, second position information indicating a position detected by the detection portion subsequently to detecting the position of the first position information;

    (d) prior to determining whether position information for a position detected by the detection portion subsequently to detecting the position of the further position information exists;

    determining whether a distance between the position indicated by the reference position information and the position indicated by the further position information is less than a threshold value;

    storing, as information configuring trajectory information, the further position information in a storage portion in response to determining that the distance is not less than the threshold value, the trajectory information being information indicating a trajectory of the writing portion;

    in response to determining the distance between the position indicated by the reference position information and the position indicated by the further position information is less than the threshold value, determining whether the writing portion is not in contact with or is not close to the detection portion; and

    in response to determining that the distance between the position indicated by the reference position information and the position indicated by the further position information is less than the threshold value, and that the writing portion is not in contact with or is not close to the detection portion, storing, as the information configuring the trajectory information, the further position information in the storage portion.

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