INPUT DEVICE INCLUDING FILM-TYPE FORCE SENSOR AND LOAD DETECTION METHOD FOR SAME

WIPO Patent Application WO/2024/084806

A1

[Problem] To provide an input device including a film-type force sensor and a load detection method for the same that make it possible to acquire an updated baseline value at an appropriate point in time, and thus to perform accurate load detection. [Solution] An input device according to the present invention comprises a film-type force sensor and a control circuit. The control circuit includes a measurement data acquisition unit, a moving average data calculation unit, a load data calculation unit, a load data correction unit, a standard deviation value calculation unit, a determination unit, a baseline updating unit, and a storage unit. The determination unit determines that there is no load on the film-type force sensor when the standard deviation value is less than or equal to a threshold value. The baseline updating unit updates the baseline value by replacing the baseline value with a value of load data at the time when the determination unit determines that there is no load on the film-type force sensor.

SHIMADA MAYUMI (JP)
WATAZU YUJI (JP)
TSUCHIYA SHIN-ICHI (JP)
FUKUDA KENGO (JP)
OBA FUMI (JP)
MIURA TSUTOMU (JP)
SHIGENARI TAKUTO (JP)

PCT/JP2023/030648

April 25, 2024

August 25, 2023

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NISSHA CO LTD (JP)

G01L1/14; G01L25/00; G06F3/041

US20140278173A1	2014-09-18
US20140125623A1	2014-05-08
JP2019220410A	2019-12-26
JP2011054154A	2011-03-17

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