INPUT DEVICE

• Main Authors: WAKUTA HIROSHI, SAGAWAI SHINICHI
• Format: Patent
• Language: English; Japanese
• Published: 20.06.2016
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

PROBLEM TO BE SOLVED: To provide an input device that can precisely discriminate a proximity operation involving no contact with a hand being gloved from a contact operation.SOLUTION: An input device 100 includes: a plurality of detection electrodes; an input unit 10 where an operation body conducts an input operation by contact or proximity; a capacity measuring unit 1 measuring an electrostatic capacity for each detection electrode and outputting the measured electrostatic capacity value; and a control unit 3 acquiring an electrostatic capacity value corresponding to a detection electrode from the capacity measuring unit 1 and detecting the position of the operation body from the amount of change in the acquired electrostatic capacity value; and a contact detecting unit 2 detecting contact based on a contact pressure of the operation body on the input unit 10. When the change of amount in the electrostatic capacity value exceeds a first threshold value as a basis for determining an operation by proximity, the control unit 3 determines that a contact operation is being conducted if it has detected contact of the operation body with the input unit 10 from the detection result obtained by the contact detection unit 2 and determines that a proximity operation is being conducted otherwise.SELECTED DRAWING: Figure 6 【課題】手袋を装着した状態でも接触を伴わない近接操作と接触操作とを精度良く判別する入力装置を提供する。【解決手段】入力装置１００は、複数の検出電極を有し、操作体が接触または近接による入力操作を行う入力部１０と、検出電極ごとに静電容量を計測し、計測した静電容量値を出力する容量計測部１と、容量計測部１から検出電極と関連付けて静電容量値を取得し、取得した静電容量値の変化量から操作体の位置を検出する制御部３とを有し、入力部１０に加わる操作体の接触圧から接触を検知する接触検知部２を備える。制御部３は、静電容量値の変化量が近接による操作を判断する第１の閾値を超えた際に、接触検知部２の検出結果から、入力部１０への操作体の接触を検知した場合、接触操作が行われていると判断し、接触を検知しない場合、近接操作が行われていると判断する。【選択図】図６