	US 12,243,345 B2
	Electronic device
Koji Kusunoki, Isehara (JP); Daisuke Kubota, Atsugi (JP); and Ryo Hatsumi, Hadano (JP)
Assigned to Semiconductor Energy Laboratory Co., Ltd., Atsugi (JP)
Filed by Semiconductor Energy Laboratory Co., Ltd., Atsugi (JP)
Filed on Sep. 21, 2023, as Appl. No. 18/370,907.
Application 18/370,907 is a continuation of application No. 17/640,543, granted, now 11,804,064, previously published as PCT/IB2020/058440, filed on Sep. 11, 2020.
Claims priority of application No. 2019-177302 (JP), filed on Sep. 27, 2019.
Prior Publication US 2024/0127622 A1, Apr. 18, 2024
Int. Cl. G06V 40/13 (2022.01); G06F 3/041 (2006.01); G06F 3/042 (2006.01); G06V 40/12 (2022.01); G06V 40/50 (2022.01); H10K 65/00 (2023.01)

CPC G06V 40/1318 (2022.01) [G06F 3/0412 (2013.01); G06F 3/042 (2013.01); G06V 40/1365 (2022.01); G06V 40/50 (2022.01); H10K 65/00 (2023.02)]

3 Claims

1. A recording medium storing a program for causing an electronic device to execute a process, comprising:

taking a first image of a detection object touching a screen of the electronic device in a first period;

taking a second image of the detection object touching the screen in a second period;

obtaining a first contact area measurement of the detection object touching the screen from the first image;

obtaining a second contact area measurement of the detection object touching the screen from the second image;

calculating a difference between sizes of the first contact area and the second contact area;

judging whether the difference is larger than a reference or not,

executing a first process when the difference is larger than the reference; and

executing a second process when the difference is smaller than or equal to the reference,

wherein the detection object continues to touch the screen in a period between the first period and the second period.