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1. 发明公开

EP3256986A1 FINGERPRINT DETECTION CIRCUIT AND ELECTRONIC DEVICE 审中-公开
标题翻译：指纹检测电路和电子设备
公开(公告)号：EP3256986A1
公开(公告)日：2017-12-20
申请号：EP16748534.1
申请日：2016-01-05
申请人： BYD Company Limited
发明人： LI, Zhengang , XU, Kunping , YANG, Yun
IPC分类号： G06K9/00
CPC分类号： G06K9/0002 , G06K9/001
摘要： A fingerprint detection circuit and an electronic device are provided. The fingerprint detection circuit is configured to apply an excitation signal to a finger so as to generate finger capacitors, and the fingerprint detection circuit includes: a signal amplifier having a negative input terminal connected with one of the finger capacitors, a positive input terminal connected with a ground terminal, and an output terminal to output an output voltage according to a capacitance value of the one of the finger capacitors; a capacitor connected between the negative terminal and the output terminal of the signal amplifier; a rheostat; and a switch unit connected with the rheostat in series and configured to control the rheostat to be connected with the capacitor in parallel, such that the output voltage has a non-linear relationship with the capacitance value of the one of the finger capacitors.

2. 发明公开

EP2691839A1 METHOD OF IDENTIFYING TRANSLATION GESTURE AND DEVICE USING THE SAME 审中-公开
标题翻译：一种用于识别翻译手势和设备
公开(公告)号：EP2691839A1
公开(公告)日：2014-02-05
申请号：EP12763932.6
申请日：2012-02-15
申请人： Shenzhen BYD Auto R&D Company Limited , BYD Company Limited
发明人： CAI, Tiejun , YI, Lianfang , CHEN, Guilan , HE, Bangjun , YANG, Yun
IPC分类号： G06F3/041
CPC分类号： G06F3/04883 , G06F3/0416 , G06F2203/04808
摘要： A method of identifying a translation gesture and a device using the same are provided. The method may comprise: detecting one or more induction signals induced by one or more pointing objects that come into contact with a touch-sensitive surface in at least one direction; determining the number of the pointing objects that come into contact with the touch-sensitive surface; recording a touch status and a movement track of each pointing object if the number of the pointing objects is larger than a predetermined number; determining whether the pointing objects move in a same direction according to the touch status and the movement track of each pointing object; and determining that the pointing objects perform a translation gesture if the pointing objects move in the same direction.

3. 发明公开

EP3256987A1 FINGERPRINT DETECTION CIRCUIT AND ELECTRONIC DEVICE 审中-公开
公开(公告)号：EP3256987A1
公开(公告)日：2017-12-20
申请号：EP16748538.2
申请日：2016-01-05
申请人： BYD Company Limited
发明人： LI, Zhengang , XU, Kunping , YANG, Yun
IPC分类号： G06K9/00
CPC分类号： G06K9/0002 , H03F3/005 , H03F2200/129
摘要： A fingerprint detection circuit and an electronic device are provided. The fingerprint detection circuit is configured to apply an excitation signal to a finger so as to generate a finger capacitor, and the fingerprint detection circuit includes: a signal amplifier having a negative input terminal connected with the finger capacitor, a positive input terminal connected with a voltage reference terminal, and an output terminal to output an output voltage according to a capacitance value of the finger capacitor; a capacitor; and a switch unit connected with the negative input terminal and the output terminal of the signal amplifier respectively, and configured to control the capacitor to be connected between the negative input terminal and the output terminal of the signal amplifier, such that the output voltage has a non-linear relationship with the capacitance value of the finger capacitor.

4. 发明公开

EP3090383A1 SENSOR FOR DETECTING FINGERPRINT AND FINGERPRINT IDENTIFICATION APPARATUS AND CONTROLLING METHOD OF SENSOR FOR DETECTING FINGERPRINT 审中-公开
标题翻译：传感器的指纹和指纹检测装置及控制方法用于检测指纹传感器探测
公开(公告)号：EP3090383A1
公开(公告)日：2016-11-09
申请号：EP14875903.8
申请日：2014-12-29
申请人： BYD Company Limited
发明人： ZHANG, Zibao , ZHANG, Jie , YANG, Yun
IPC分类号： G06K9/00
CPC分类号： G06K9/0002
摘要： A sensor (200) for detecting a fingerprint, a fingerprint identification apparatus (20) and a controlling method of a sensor for detecting a fingerprint are provided. The sensor (200) for detecting the fingerprint includes a detecting panel (210) including: a detecting region (220) with a plurality of detecting units (221), in which the plurality of detecting units (221) are distributed in a plurality rows and columns on the detecting region (220); and a conductive layer (230), configured to form a sensing capacitance between the conductive layer (230) and a finger when the finger is close to the detecting region (220); a capacitance detecting module (240), configured to detect the sensing capacitance; and a control module (250).
摘要翻译：本发明提供一种用于检测指纹，指纹识别装置和传感器的用于检测指纹的控制方法的传感器。用于检测指纹传感器包括一个面板检测包含：与检测单元的检测多元化，其中检测单元的多元性被分布在多个行和列上的检测区域的区域; 和导电层，用于形成导电层和一个手指当手指接近检测区域之间的感测电容; 电容检测模块，被配置为检测所述感测电容; 和控制模块。

5. 发明公开

EP3264361A1 METHOD AND DEVICE FOR CALCULATING RIDGE DISTANCE 审中-公开
标题翻译：用于计算爬坡距离的方法和装置
公开(公告)号：EP3264361A1
公开(公告)日：2018-01-03
申请号：EP16748536.6
申请日：2016-01-05
申请人： BYD Company Limited
发明人： ZHENG, Li , XU, Kunping , YANG, Yun
IPC分类号： G06T7/00
CPC分类号： G06K9/0008 , G01B11/14 , G06T5/002 , G06T7/13 , G06T7/60 , G06T7/73 , G06T2207/20021 , G06T2207/30196
摘要： The present disclosure discloses a method and device for calculating a line distance. The method includes: obtaining an original image and performing grayscale processing to generate a grayscale image; generating a radical image and a tangential image according to the grayscale image; performing filtering on the grayscale image according to the tangential image to generate a smoothened image and converting the smoothened image into a binary image; dividing the binary image into blocks and determining a radical direction of a center point of each block according to the radical image; traversing pixels in the radical direction of the center point of each block to calculate a number of times pixel values of two adjacent pixels within the each block change between a first pixel value and a second pixel value, and to calculate a coordinate and sub-pixel value of a boundary point corresponding to a changing-point; and generating the line distance according to the number of times of the change, and the coordinate and the sub-pixel value of the boundary point corresponding to the changing-point. The method seeks the boundary point of the fingerprint ridge lines and the fingerprint valley lines and calculates the line distance according to the coordinates and the sub-pixel value of the boundary point, improving accuracy, strengthening the ability to resist noise.
摘要翻译：本公开公开了一种计算行距的方法和装置。该方法包括：获取原始图像并进行灰度处理生成灰度图像; 根据灰度图像生成基础图像和切向图像; 根据所述切向图像对所述灰度图像执行滤波以生成平滑图像并将所述平滑图像转换为二值图像; 将所述二值图像分块，根据所述径向图确定各个块的中心点的径向方向; 遍历每个块的中心点的自由基方向上的像素，以计算每个块内的两个相邻像素的像素值在第一像素值和第二像素值之间改变的次数，并且计算坐标和子像素与变化点对应的边界点的值; 根据所述变化次数以及与所述变化点对应的边界点的坐标和子像素值生成所述线距离。该方法通过寻找指纹棱线和指纹谷线的边界点，根据边界点的坐标和子像素值计算出行距，提高了准确性，增强了抵抗噪声的能力。

6. 发明公开

EP3258416A1 COMPUTING METHOD FOR AREA OF FINGERPRINT OVERLAPPING AREA AND ELECTRONIC APPARATUS 审中-公开
标题翻译：指纹重叠区域计算方法及电子仪器
公开(公告)号：EP3258416A1
公开(公告)日：2017-12-20
申请号：EP16748537.4
申请日：2016-01-05
申请人： BYD Company Limited
发明人： LEI, Lei , XU, Kunping , YANG, Yun
IPC分类号： G06K9/00
CPC分类号： G06K9/00067 , G06K9/00 , G06K9/00087 , G06K9/34
摘要： The present disclosure discloses method for calculating an area of a fingerprint overlapping region, including: collecting a to-be-matched fingerprint to obtain a to-be-matched fingerprint image; searching multiple pairs of matching characteristic points between the to-be-matched fingerprint image and a preset template fingerprint image; obtaining an image offset of the to-be-matched fingerprint image according to the multiple pairs of matching characteristic points; based on the image offset, adjusting a position of the to-be-matched fingerprint image to obtain an overlapping region between the to-be-matched fingerprint image and the preset template fingerprint image; and calculating a total number of image pixels within the overlapping region, and calculating an area of the overlapping region based on the total number of image pixels within the overlapping region. In the above calculation method, by dividing the overlapping region into individual image pixels and calculating the number of image pixels in the overlapping region to calculate the area of the overlapping region, it is possible to calculate the area of the overlapping region of any shape, and the calculated area is accurate at the pixel level. Thus, the calculated area may be more accurate, facilitating subsequent calculation, making fingerprint matching more accurate, and improving the user experience. The present disclosure also discloses an electronic device.
摘要翻译：本发明公开了一种计算指纹重叠区域面积的方法，包括：采集待匹配的指纹，得到待匹配的指纹图像; 在所述待匹配的指纹图像与预设的模板指纹图像之间查找多对匹配的特征点; 根据所述多对匹配特征点获取所述待匹配指纹图像的图像偏移量; 根据所述图像偏移调整所述待匹配指纹图像的位置，得到所述待匹配指纹图像与所述预设模板指纹图像的重叠区域; 并且计算重叠区域内的图像像素的总数，并且基于重叠区域内的图像像素的总数来计算重叠区域的面积。在上述计算方法中，通过将重叠区域划分成单独的图像像素并计算重叠区域中的图像像素的数量以计算重叠区域的面积，可以计算任何形状的重叠区域的面积，并且计算的面积在像素级是准确的。这样计算得到的面积可以更加准确，便于后续计算，使得指纹匹配更加准确，提高了用户体验。本公开还公开了一种电子设备。

7. 发明公开

EP3236386A1 FINGERPRINT RECOGNITION SYSTEM AND FINGERPRINT RECOGNITION METHOD AND ELECTRONIC DEVICE 审中-公开
标题翻译：指纹识别系统和指纹识别方法及电子设备
公开(公告)号：EP3236386A1
公开(公告)日：2017-10-25
申请号：EP15869125.3
申请日：2015-11-03
申请人： BYD Company Limited
发明人： CHEN, Guilan , WEN, Qiyong , CAI, Tiejun , HE, Bangjun , YANG, Yun
IPC分类号： G06K9/00
CPC分类号： G06K9/00087 , A61B5/1172 , G06K9/0002 , G06K9/00026
摘要： In the fingerprint identification system according to the present disclosure, the fingerprint sensor collects multiple frames of fingerprint images sliding-inputted by a user, the judging unit determines whether, among the multiple frames of fingerprint images, there is a first overlap region between a current frame of fingerprint images and a previous frame of fingerprint images; if yes, the judging unit removes the first overlap region from the current frame of fingerprint images and superposes the previous frame of fingerprint images with the current frame of fingerprint images to form a superposed fingerprint image; the judging unit completes judgment of all the multiple frames of fingerprint images to obtain a template fingerprint image; the processing unit saves characteristic points of the complete template fingerprint image. The fingerprint sensor collects a to-be-identified fingerprint image pressing-inputted by the user, and the processing unit determines whether the characteristic points of the to-be-identified fingerprint image match with the characteristic points of the template fingerprint image. When establishing template fingerprint database, the fingerprint identification system collects the fingerprint sliding-inputted by the user and the to-be-identified fingerprint pressing-inputted by the user in the subsequent matching process. Therefore, the input and identification efficiency is much higher than that of existing methods. The present disclosure also provides a fingerprint identification method and an electric equipment.
摘要翻译：在本发明的指纹识别系统中，指纹传感器采集用户滑动输入的多帧指纹图像，判断单元判断多帧指纹图像中是否存在电流的第一重叠区域指纹图像的帧和指纹图像的前一帧; 如果是，则判断单元从当前指纹图像帧中去除第一重叠区域，并将指纹图像的前一帧与当前指纹图像帧叠加以形成叠加指纹图像; 判断单元完成对所有多帧指纹图像的判断，得到模板指纹图像; 处理单元保存完整模板指纹图像的特征点。指纹传感器采集用户按下输入的待识别指纹图像，处理单元判断待识别指纹图像的特征点是否与模板指纹图像的特征点相匹配。指纹识别系统在建立模板指纹库时，采集用户滑动输入的指纹以及用户在后续匹配过程中按压输入的待识别指纹。因此，输入和识别效率远高于现有方法。本公开还提供了一种指纹识别方法和电子设备。

8. 发明公开

EP3087349A1 CAPACITANCE DETECTING DEVICE FOR FINGERPRINT IDENTIFICATION AND FINGERPRINT IDENTIFICATION APPARATUS COMPRISING THE SAME 审中-公开
标题翻译： KAPAZITÄTSERKENNUNGSVORRICHTUNGFÜRFINGERABDRUCKIDENTITITIATIAITION在FINGERABDRUCKIDENTIFIKATIONSVORRICHTUNG DAMIT
公开(公告)号：EP3087349A1
公开(公告)日：2016-11-02
申请号：EP14874728.0
申请日：2014-12-26
申请人： BYD Company Limited
发明人： ZHANG, Zibao , ZHANG, Jie , YANG, Yun
IPC分类号： G01D5/24 , G06K9/00
CPC分类号： G06K9/0002 , G01R27/2605
摘要： A capacitance detecting device for fingerprint identification comprises a conductive border (200), a detecting screen (100) and a detecting module (300). The detecting screen (100) comprises a plurality of detecting units (110). Each detecting unit (110) comprises a first conductive layer (111), a second conductive layer (112), a third conductive layer (113) and a fourth conductive layer (114). The detecting module (300) is configured to charge a sensing capacitance between the first conductive layer (111) and a finger (5) in contact with the detecting screen (100) and a feedback capacitance between the first conductive layer (111) and the second conductive layer (112) at a sampling stage, to control electric charges of the sensing capacitance and the feedback capacitance to transfer to an integrating capacitance between the third conductive layer (113) and the fourth conductive layer (114) at an integral stage, to measure a voltage variation of the integrating capacitance at the integral stage and to calculate the sensing capacitance according to the voltage variation. A fingerprint identification apparatus is also provided.
摘要翻译：提供了一种用于指纹识别的电容检测装置和指纹识别装置。该装置包括导电边界; 检测屏，包括：多个检测单元，其中每个检测单元包括：第一导电层，第二导电层，第三导电层和第四导电层; 检测模块，被配置为在所述第一导电层和与所述检测屏幕接触的手指之间对感测电容进行充电，以及在采样阶段对所述第一导电层和所述第二导电层之间的反馈电容进行充电，以控制所述感测的电荷电容和反馈电容，以在积分级传递到第三导电层和第四导电层之间的积分电容，以测量积分级的积分电容的电压变化，并根据电压变化计算感测电容。

9. 发明公开

EP3258415A1 FINGERPRINT IDENTIFICATION METHOD AND APPARATUS 审中-公开
标题翻译：指纹识别方法和装置
公开(公告)号：EP3258415A1
公开(公告)日：2017-12-20
申请号：EP16748535.8
申请日：2016-01-05
申请人： BYD Company Limited
发明人： LI, Zhengang , XU, Kunping , YANG, Yun
IPC分类号： G06K9/00
CPC分类号： G06K9/0008 , G06K9/00 , G06K9/00013 , G06K9/001 , G06T3/4038
摘要： The present disclosure provides a fingerprint identification method and apparatus. The fingerprint identification method includes obtaining a to-be-identified fingerprint image and extracting first characteristic points of the to-be-identified fingerprint image; determining whether a number of the first characteristic points of the to-be-identified fingerprint image is less than a predetermined threshold; when the number of the first characteristic points of the to-be-identified fingerprint image is less than the predetermined threshold, selecting a fingerprint template image according to the number of the first characteristic points; extracting second characteristic points in the fingerprint template image matching with the first characteristic points of the to-be-identified fingerprint image; overlapping the fingerprint template image with the to-be-identified fingerprint image according to the first characteristic points of the to-be-identified fingerprint image and the second characteristic points of the fingerprint template image to form an overlapped image; determining a valid coincidence region between the to-be-identified fingerprint image and the fingerprint template image in the overlapped image; and determining whether the to-be-identified fingerprint image matches the fingerprint template image according to the valid coincidence region to generate a matching result and performing fingerprint identification based on the matching result. According to the disclosed method, fingerprint identification with less characteristic points can be realized, thus improving the success rate of the fingerprint identification, and reducing the identification error rate.
摘要翻译：本公开提供了一种指纹识别方法和装置。该指纹识别方法包括：获取待识别指纹图像并提取该待识别指纹图像的第一特征点; 判断待识别指纹图像的第一特征点的数量是否小于预定阈值; 当所述待识别指纹图像的第一特征点的数量小于所述预定阈值时，根据所述第一特征点的数量选择指纹模板图像; 提取与所述待识别指纹图像的第一特征点匹配的指纹模板图像中的第二特征点; 根据待识别指纹图像的第一特征点与指纹模板图像的第二特征点，将指纹模板图像与待识别指纹图像重叠形成重叠图像; 确定所述待识别指纹图像与所述重叠图像中的所述指纹模板图像之间的有效重合区域; 根据所述有效符合区域判断所述待识别指纹图像是否与所述指纹模板图像匹配，生成匹配结果，并根据匹配结果进行指纹识别。根据所公开的方法，可以实现特征点较少的指纹识别，提高了指纹识别的成功率，降低了识别错误率。

10. 发明公开

EP2691841A1 METHOD OF IDENTIFYING MULTI-TOUCH SCALING GESTURE AND DEVICE USING THE SAME 审中-公开
标题翻译：方法用于识别多种触摸手势缩放和设备
公开(公告)号：EP2691841A1
公开(公告)日：2014-02-05
申请号：EP12763399.8
申请日：2012-01-10
申请人： Shenzhen BYD Auto R&D Company Limited , BYD Company Limited
发明人： CAI, Tiejun , YI, Lianfang , CHEN, Zhibin , HE, Bangjun , YANG, Yun
IPC分类号： G06F3/045
CPC分类号： G06F3/0416 , G06F3/04883 , G06F2203/04806
摘要： A method of identifying a scaling gesture comprising: detecting in at least one direction one or more induction signals induced by one or more pointing objects that come into contact with a touch-sensitive surface; determining a number of the pointing object; determining whether the pointing objects perform the scaling gesture if the number of the pointing object is more than one; and generating a control signal associated with the determined scaling gesture if the pointing objects perform a scaling gesture.

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