MOBILE INFORMATION TERMINAL AND OPERATIONAL STATE ASSESSMENT METHOD

摘要

A mobile information terminal that can determine with high accuracy whether a user's operation state is one-handed operation or two-handed operation, regardless of variability in user's gripping features among individuals, is provided. The mobile information terminal includes a pressure sensor array that acquires a gripping pressure distribution; a gripping pressure logger that records time-series changes in gripping pressure at each pressure sensor forming the pressure sensor array; a gripping pressure change point detection unit that includes a gripping pressure change amount calculation section that acquires time-series changes in gripping pressure at each pressure sensor and determines whether the amount of change in gripping pressure per unit time exceeds a predetermined value at any pressure sensor; and an operation state determination section that determines that the operation state of the mobile information terminal of the user of the mobile information terminal is one-handed operation when the amount of change in gripping pressure per unit time exceeds the predetermined value at any pressure sensor.