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    SUCCESSIVE APPROXIMATION ANALOG-TO-DIGITAL CONVERTER AND METHOD OF ANALOG-TO-DIGITAL CONVERSION
    2.
    发明申请
    SUCCESSIVE APPROXIMATION ANALOG-TO-DIGITAL CONVERTER AND METHOD OF ANALOG-TO-DIGITAL CONVERSION 有权
    连续逼近模拟数字转换器和模拟数字转换方法

    公开(公告)号：US20150061904A1

    公开(公告)日：2015-03-05

    申请号：US14451080

    申请日：2014-08-04

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Choong-Hoon LEE ,  Michael CHOI

    IPC: H03M1/06 ,  H03M1/12 ,  H03M1/00

    CPC classification number: H03M1/0617 ,  H03M1/001 ,  H03M1/002 ,  H03M1/1023 ,  H03M1/1245 ,  H03M1/468

    Abstract: An analog-to-digital converter includes a digital-to-analog converting circuit, a comparator, a comparator offset detector, and a signal processing circuit. The digital-to-analog converting circuit generates a reference voltage signal that changes in response to a comparator offset compensation signal, samples and holds an analog input signal, and performs a digital-to-analog conversion on digital output data to generate a hold voltage signal. The comparator compares the hold voltage signal with the reference voltage signal in response to a clock signal to generate a comparison output voltage signal. The comparator offset detector generates the comparator offset compensation signal based on the comparison output voltage signal. The signal processing circuit performs successive approximation based on the comparison output voltage signal to generate the digital output data.

    Abstract translation: 模数转换器包括数模转换电路，比较器，比较器偏移检测器和信号处理电路。 数模转换电路产生响应于比较器偏移补偿信号而改变的参考电压信号，采样并保持模拟输入信号，并对数字输出数据执行数模转换以产生保持电压 信号。 比较器响应于时钟信号将保持电压信号与参考电压信号进行比较，以产生比较输出电压信号。 比较器偏移检测器根据比较输出电压信号产生比较器偏移补偿信号。 信号处理电路基于比较输出电压信号进行逐次逼近以产生数字输出数据。

    FINGERPRINT SENSOR, ELECTRONIC DEVICE HAVING THE SAME, AND METHOD OF OPERATING FINGERPRINT SENSOR
    3.
    发明申请
    FINGERPRINT SENSOR, ELECTRONIC DEVICE HAVING THE SAME, AND METHOD OF OPERATING FINGERPRINT SENSOR 有权
    指纹传感器，具有该指纹传感器的电子设备以及操作指纹传感器的方法

    公开(公告)号：US20170046555A1

    公开(公告)日：2017-02-16

    申请号：US15168241

    申请日：2016-05-30

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Choong-Hoon LEE

    IPC: G06K9/00

    CPC classification number: G06K9/0002

    Abstract: A fingerprint sensor, comprising: a pixel array including a plurality of unit pixels arranged in rows and columns, each of the plurality of unit pixels including: a sensing electrode configured to form a detection capacitor; and a signal generation circuit configured to generate an analog signal based on a capacitance of the detection capacitor; and a controller configured to control an operation of the pixel array, wherein the controller is configured to electrically connect sensing electrodes of at least two unit pixels adjacent to each other and activate only one of the signal generation circuits included in the at least two unit pixels to generate the analog signal.

    Abstract translation: 一种指纹传感器，包括：像素阵列，包括排列成行和列的多个单位像素，所述多个单位像素中的每一个包括：感测电极，被配置为形成检测电容器; 以及信号生成电路，被配置为基于所述检测电容器的电容生成模拟信号; 以及控制器，其被配置为控制像素阵列的操作，其中所述控制器被配置为电连接彼此相邻的至少两个单位像素的感测电极，并且仅激活包括在所述至少两个单位像素中的所述信号生成电路中的一个 以产生模拟信号。

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