TOUCH DETECTING DEVICE, INFORMING DEVICE, TOUCH DETECTING PROGRAM AND INFORMING PROGRAM

Japanese Patent JP2023127511

A

To reduce a false detection and a detection omission that are caused by a change in an environment in which a touch sensor is utilized.SOLUTION: A reference value A of a touch sensor is not set as a fixed value, but a measured value P that changes in accordance with a change in a utilization environment, such as a temperature or a humidity, is periodically measured, and the reference value A is set and updated by utilizing the measured value P. Hence, a threshold B (=A+threshold C) for determining whether a touch is made or not becomes a value in accordance with the utilization environment. Since measured values P3 and P4 measured in an environment E1 are equal to or greater than the threshold B (E2), a determination is made that a touch is made for both measured values (see FIG. 1). Conversely, in another environment E2, the reference value A (E2) and the threshold B (E2) are updated in accordance with the environment E2. Hence, even if the measured values P3 and P4 are the same as those in the environment E1, a determination is made that a touch is made for the measured value P3 since the measured value P3 is equal to or greater than the threshold B (E2), but a determination is made that a contact is not made for the measured value P4 since the measured value P4 is smaller than the threshold B (E2). In this manner, a false detection and a detection omission can be avoided.SELECTED DRAWING: Figure 1

MASUYAMA TOMOHIRO
NOMURA KOICHI
MITSUI KENJI

JP2022031346A

September 13, 2023

March 01, 2022

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SEIKO SOLUTIONS INC

G06F3/041; G06F3/044

Takashi Kawai
Hitoshi Nakano

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