PROBLEM TO BE SOLVED: To provide a device and a method of precisely measuring a pulse rate.SOLUTION: In a preliminary measurement operation, observation signals based on a pulse waveform in a stationary state, a body tissue motion state, and a body movement state of a user are obtained in a plurality of observation parts of the user, and an evaluation value for a signal waveform of the observation signal, which is evaluated by a specific index assumed to indicate a degree where the pulse waveform is reflected to the observation signal, is stored while associated with each observation part and each operation state. In a normal measurement operation thereafter, the operation state to which the state of the user corresponds is determined from a plurality of the operation states based on an acceleration signal accompanied with user operation and the observation signals, S208, an observation part is selected where the pulse waveform assumes to be well reflected to the observation signal in the evaluation for the operation state determined in the preliminary measurement operation, S209 and S210, and a pulse rate is calculated based on the observation signal obtained in the observation part, S211.COPYRIGHT: (C)2014,JPO&INPIT【課題】正確な脈拍数を計測する装置及び方法を提供する。【解決手段】予備測定動作により、ユーザの静止状態、体組織運動状態及び体動状態において脈波に基づく観測信号が、ユーザの複数の観測部位で取得され、この観測信号の信号波形に対して、脈波が観測信号に反映されている度合いを表していると推定される特定の指標で評価した評価値が、各観測部位と各動作状態とに関連付けて記録される。次いで、通常測定動作により、ユーザの動作に伴う加速度信号と観測信号とに基づいてユーザの状態が複数の動作状態の何れに対応しているかが判別されS208、予備測定動作において判別された動作状態で、評価において脈波が観測信号に良好に反映されていると推定される観測部位が選択されS209,S210、当該観測部位において取得された観測信号に基づいて脈拍数が算出されるS211。【選択図】図8
