公开(公告)号：US20150002461A1

公开(公告)日：2015-01-01

申请号：US14321256

申请日：2014-07-01

Applicant: STMicroelectronics S.r.l.

Inventor： Nunziata Ivana GUARNERI ,  Alessandro CAPRA

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/04886 ,  G06F2203/04104 ,  G06F2203/04108

Abstract: An embodiment of a method for detecting the presence of a finger in the proximity of a screen that generates detection signals in the horizontal direction and in the vertical direction comprises: —sampling the detection signals and generating raw-data vectors X and Y, wherein the raw data have a maximum for the elements of the vector that define the position of the finger on the screen in the direction X and in the direction Y, respectively; —dividing the aforesaid vectors X and Y into subsets defined as “macro-areas”; —computing the cumulative values (A, B, C, D, E, F) of each macro-area by adding together all the elements of the vector X and of the vector Y that belong to the aforesaid macro-area; and—selecting the maximum values from among the horizontal cumulative values (A, B, C) and the vertical cumulative values (D, E, F). An embodiment supplies at output a value that identifies the macro-area selected on the basis of the maximum values of the cumulative values, or no value at all in the case of presence of elements of disturbance in the proximity of the screen.

Abstract translation: 用于检测在水平方向和垂直方向上产生检测信号的屏幕附近的手指的存在的方法的实施例包括：采样检测信号并生成原始数据矢量X和Y，其中， 原始数据对于矢量的元素具有分别在方向X和Y方向上在屏幕上定义手指的位置的最大值; 将上述向量X和Y划分为定义为“宏区域”的子集; - 通过将属于上述宏区域的向量X和向量Y的所有元素相加，来计算每个宏区域的累积值（A，B，C，D，E，F） 并从水平累积值（A，B，C）和垂直累积值（D，E，F）中选择最大值。 实施例在输出端提供识别基于累积值的最大值所选择的宏区域的值，或者在屏幕附近存在干扰元件的情况下根本没有值。

公开(公告)号：US20150040076A1

公开(公告)日：2015-02-05

申请号：US14450105

申请日：2014-08-01

Applicant: STMicroelectronics S.r.l.

Inventor： Nunziata Ivana GUARNERI ,  Alessandro CAPRA

IPC: G06F3/01

CPC classification number: G06F3/017 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/04883 ,  G06F2203/04108

Abstract: In an embodiment, hand gestures, such as hand or finger hovering, in the proximity space of a sensing panel are detected from X-node and Y-node sensing signals indicative of the presence of a hand feature at corresponding row locations and column locations of a sensing panel. Hovering is detected by detecting the locations of maxima for a plurality of frames over a time window for a set of X-node sensing signals and for a set of Y-node sensing signals by recognizing a hovering gesture if the locations of the maxima detected vary over the plurality of frames for one of the sets of X-node and Y-node sensing signals while remaining stationary for the other of the sets of X-node and Y-node sensing signals(Y). Finger shapes are distinguished over “ghosts” generated by palm or fist features by transforming the node-intensity representation for the sensing signals into a node-distance representation, based on the distances of the detection intensities for a number of nodes under a peak for a mean point between the valleys adjacent to the peak.

Abstract translation: 在一个实施例中，从X节点和Y节点感测信号中检测到在感测面板的接近空间中的手势或手指悬停的手势，指示在相应的行位置和列位置处存在手特征 传感面板。 通过在一个X节点感测信号的集合的时间窗口上检测多个帧的最大值的位置，以及通过识别悬停的手势，如果检测到的最大值的位置变化，则检测到一组Y-节点感测信号，来检测悬停 在X节点和Y节点感测信号中的一个集合的多个帧中，对于X节点和Y节点感测信号（Y）中的另一组而保持静止。 手指形状通过由手掌或第一特征产生的“幽灵”区分，通过将感测信号的节点强度表示变换为节点距离表示，基于峰值处的多个节点的检测强度的距离， 与山峰相邻的山谷之间的平均点。

公开(公告)号：US20140085260A1

公开(公告)日：2014-03-27

申请号：US14037359

申请日：2013-09-25

Applicant: STMicroelectronics S.r.L.

Inventor： Nunziata Ivana GUARNERI ,  Alessandro CAPRA

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: An embodiment of a method for processing finger-detection data produced by a touch screen includes: computing the area of the finger-data map and extracting the main axes from the finger-data map, computing the lengths and orientations of the main axes, determining from the main axes a major axis having a major-axis orientation, computing a geometrical center and a center of mass of the finger-data map, computing an eccentricity of the finger-data map as a function of the lengths of the main axes outputting the major-axis orientation as indicative of the finger-orientation direction in the plane of the screen, outputting the mutual position of the geometrical center and the center of mass of the finger-data map as indicative of finger-pointing direction along the finger-orientation direction in the plane of the screen, and outputting a combination of the eccentricity and the area of the finger data map as indicative of finger orientation with respect to the plane of the screen.

Abstract translation: 用于处理由触摸屏产生的手指检测数据的方法的实施例包括：计算手指数据图的面积并从手指数据图中提取主轴，计算主轴的长度和方位，确定 主轴具有长轴取向的长轴，计算手指数据图的几何中心和质心，计算手指数据图的偏心度作为主轴输出长度的函数 作为指示屏幕平面中的手指取向方向的长轴方向，输出指示手指数据映射的几何中心和质心的相互位置，指示手指指向方向， 在屏幕的平面中定向方向，并且输出指示相对于屏幕的平面的手指取向的手指数据图的偏心度和面积的组合。

公开(公告)号：US20150035779A1

公开(公告)日：2015-02-05

申请号：US14450088

申请日：2014-08-01

Applicant: STMicroelectronics S.r.l.

Inventor： Nunziata Ivana GUARNERI ,  Alessandro CAPRA

IPC: G06F3/041

CPC classification number: G06F3/041 ,  G06F3/017 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/0488 ,  G06F2203/04108

Abstract: In an embodiment, hand gestures, such as hand or finger hovering, in the proximity space of a sensing panel are detected from X-node and Y-node sensing signals indicative of the presence of a hand feature at corresponding row locations and column locations of a sensing panel. Hovering is detected by detecting the locations of maxima for a plurality of frames over a time window for a set of X-node sensing signals and for a set of Y-node sensing signals by recognizing a hovering gesture if the locations of the maxima detected vary over the plurality of frames for one of the sets of X-node and Y-node sensing signals while remaining stationary for the other of the sets of X-node and Y-node sensing signals. Finger shapes are distinguished over “ghosts” generated by palm or first features by transforming the node-intensity representation for the sensing signals into a node-distance representation, based on the distances of the detection intensities for a number of nodes under a peak for a mean point between the valleys adjacent to the peak.

Abstract translation: 在一个实施例中，从X节点和Y节点感测信号中检测到在感测面板的接近空间中的手势或手指悬停的手势，指示在相应的行位置和列位置处存在手特征 传感面板。 通过在一个X节点感测信号的集合的时间窗口上检测多个帧的最大值的位置，以及通过识别悬停的手势，如果检测到的最大值的位置变化，则检测到一组Y-节点感测信号，来检测悬停 在X节点和Y节点感测信号中的一个集合的多个帧上，而对于X节点和Y节点感测信号中的另一组则保持静止。 手指形状通过由手掌或第一特征产生的“鬼”区分，通过将感测信号的节点强度表示通过将峰值处的多个节点的检测强度的距离变换为节点距离表示 与山峰相邻的山谷之间的平均点。

公开(公告)号：US20140098045A1

公开(公告)日：2014-04-10

申请号：US14045905

申请日：2013-10-04

Applicant: STMicroelectronics S.r.l

Inventor： Nunziata Ivana GUARNERI ,  Alessandro CAPRA ,  Sebastiano BATTIATO ,  Giovanni Maria FARINELLA ,  Francesco CRISTALDI

IPC: G06F3/041

CPC classification number: G06F3/041 ,  G06F3/0416 ,  G06F2203/04104

Abstract: An embodiment of a method of recognizing finger detection data in a detection data map produced by a touch screen includes converting the data from the x, y, z space into a three-descriptor space including: a first coordinate representative of the number of intensity peaks in the map, a second coordinate representative of the number of nodes (i.e., pixels) absorbed under one or more of the intensity peaks. A third coordinate may be selected as the angular coefficient or slope of a piecewise-linear approximating function passing through points having the numbers of nodes absorbed under the intensity peaks ordered in decreasing order over said intensity peaks, which permits singling out finger data with respect to non-finger data over the whole of the touch screen. The third coordinate may be also selected as an adjacency value representative of the extent the intensity peaks are adjacent to one another, which permits singling out finger data produced over a portion of the touch screen with respect to non-finger data produced over another portion of the touch screen.

Abstract translation: 在由触摸屏产生的检测数据图中识别手指检测数据的方法的实施例包括将来自x，y，z空间的数据转换为三描述符空间，包括：表示强度峰值数量的第一坐标 在地图中，表示在一个或多个强度峰值下吸收的节点数（即，像素）的第二坐标。 可以选择第三坐标作为通过具有在所述强度峰值之下以降序排列的强度峰值下吸收的节点数的点的分段线性近似函数的角度系数或斜率，这允许相对于 整个触摸屏上的非手指数据。 也可以选择第三坐标作为代表强度峰值彼此相邻的程度的相邻值，这允许在触摸屏的一部分上产生的手指数据相对于在另一部分上产生的非手指数据 触摸屏。