公开(公告)号：US20140043287A1

公开(公告)日：2014-02-13

申请号：US13926034

申请日：2013-06-25

Applicant: ALPS ELECTRIC CO., LTD.

Inventor： Satoshi NAKAJIMA ,  Satoshi HAYASAKA ,  Shinichi ENDO

IPC: G06F3/041

CPC classification number: G06F3/0418 ,  G06F3/044

Abstract: Provided is an input device including a coordinate input unit having plural capacitance detection units, a capacitance measurement unit that measures capacitance for each of the plural capacitance detection units, and performs an AD conversion on the measured capacitance to output the converted capacitance as a measurement signal, and a control unit that controls the capacitance measurement unit, calculates a data signal by arithmetically operating the measurement signal, stores the data signal in association with coordinate information of the capacitance detection unit, and outputs a control signal. The control unit calculates a difference value between a predetermined reference value and the data signal at a constant time interval, performs a weighted average process on the data signal and the predetermined reference value to update and store a value on which the process is performed as a new reference value, and changes a weight given to the weighted average process.

Abstract translation: 提供了一种输入装置，包括具有多个电容检测单元的坐标输入单元，测量多个电容检测单元中的每一个的电容的电容测量单元，并且对所测量的电容进行AD转换，以输出转换的电容作为测量信号 以及控制电容测量单元的控制单元，通过算术运算测量信号来计算数据信号，将数据信号与电容检测单元的坐标信息相关联，并输出控制信号。 控制单元以恒定时间间隔计算预定参考值和数据信号之间的差值，对数据信号和预定参考值执行加权平均处理，以更新和存储执行该处理的值作为 新的参考值，并改变给予加权平均过程的权重。

公开(公告)号：US20140046460A1

公开(公告)日：2014-02-13

申请号：US13926338

申请日：2013-06-25

Applicant: ALPS ELECTRIC CO., LTD.

Inventor： Satoshi NAKAJIMA ,  Satoshi HAYASAKA ,  Shinichi ENDO

IPC: G05B11/01

CPC classification number: G05B11/01 ,  G06F3/044

Abstract: An input device includes a coordinate input unit including capacitance detectors, a capacitance measuring unit that measures the capacitances of the capacitance detectors and outputs them as measurement signals by performing A/D conversion, and a control unit that controls the capacitance measuring unit, obtains the signals while associating them with coordinate information of the capacitance detectors, calculates first data signals that are difference values between the measurement signals and a reference value, performs a calculation for the first data signals, outputs control signals based on the calculation result, performs a first calculation in which the first data signals obtained after performing a noise removal process are associated with the coordinate information as second data signals and a second calculation in which the second signals obtained after performing a smoothing process are associated with the coordinate information as third data signals, and calculates an operation position using the third data signals.

Abstract translation: 输入装置包括：电容检测器的坐标输入单元，测量电容检测器的电容并通过进行A / D转换作为测量信号输出的电容测量单元;以及控制电容测量单元的控制单元， 信号，同时将它们与电容检测器的坐标信息相关联，计算作为测量信号和参考值之间的差值的第一数据信号，对第一数据信号执行计算，基于计算结果输出控制信号，执行第一 在执行噪声去除处理之后获得的第一数据信号与作为第二数据信号的坐标信息相关联的计算和执行平滑处理之后获得的第二信号与作为第三数据信号的坐标信息相关联的第二计算， 并计算歌剧 使用第三个数据信号。