SYSTEM AND METHOD FOR OBJECT POSITION ESTIMATION BASED ON ULTRASONIC REFLECTED SIGNALS
    15.
    发明申请
    SYSTEM AND METHOD FOR OBJECT POSITION ESTIMATION BASED ON ULTRASONIC REFLECTED SIGNALS 有权
    基于超声反射信号的对象位置估计系统与方法

    公开(公告)号:US20130301391A1

    公开(公告)日:2013-11-14

    申请号:US13885677

    申请日:2011-11-16

    CPC classification number: G01S15/08 G01S13/003 G01S13/32 G01S15/003 G01S15/32

    Abstract: A system for small space positioning comprises a transmitting element at a fixed and known location, which transmitting a modulated continuous wave, for example an ultrasonic wave, having a continuous carrier signal part and a base-band signal modulated thereon. The transmitting element transmits the modulated continuous wave over a range in which an object to be positioned may appear. A receiving element receives signals transmitted by the transmitting device and reflected by the object, and a position detection element determines a position of the object from analysis of both the carrier signal part and the base-band signal received from the reflected signal.

    Abstract translation: 用于小空间定位的系统包括在固定和已知位置处的发射元件,其传输具有调制在其上的连续载波信号部分和基带信号的经调制的连续波,例如超声波。 发送元件将被调制的连续波发送到可能出现定位对象的范围。 接收元件接收由发送设备发送并被对象反射的信号,并且位置检测元件根据从反射信号接收到的载波信号部分和基带信号的分析来确定对象的位置。

    Gradual Power Wake-Up Mechanism
    19.
    发明申请
    Gradual Power Wake-Up Mechanism 审中-公开
    渐进电源唤醒机制

    公开(公告)号:US20170075700A1

    公开(公告)日:2017-03-16

    申请号:US15260132

    申请日:2016-09-08

    Abstract: Apparatuses and methods of a gradual power wake-up mechanism are disclosed. In one embodiment, a method of activating a device based on detection of a fingerprint image may include monitoring a first metric level of a first set of regions of the fingerprint image, determining a second metric level of a second set of regions of the fingerprint image in response to the first metric level exceeding a first threshold, and activating the device based on the second metric level of the second set of regions of the fingerprint image.

    Abstract translation: 公开了逐步功率唤醒机构的装置和方法。 在一个实施例中,基于对指纹图像的检测来激活设备的方法可以包括监视指纹图像的第一组区域的第一度量级别,确定指纹图像的第二组区域的第二度量级别 响应于所述第一度量水平超过第一阈值,以及基于所述指纹图像的所述第二组区域的所述第二度量水平来激活所述设备。

    CORRECTION OF DIFFRACTION EFFECTS IN AN ULTRASONIC SENSOR
    20.
    发明申请
    CORRECTION OF DIFFRACTION EFFECTS IN AN ULTRASONIC SENSOR 有权
    超声传感器中的衍射效应的校正

    公开(公告)号:US20170004347A1

    公开(公告)日:2017-01-05

    申请号:US15198686

    申请日:2016-06-30

    CPC classification number: G06K9/00067 G06K9/0002 G06K9/00087

    Abstract: Embodiments of correcting diffraction effects in an ultrasonic sensor are disclosed. In one embodiment, an ultrasonic sensor may include an ultrasonic transmitter configured to transmit an ultrasonic wave, a piezoelectric receiver layer configured to receive a reflected wave of the ultrasonic wave, where the reflected wave comprises a plurality of images of a fingerprint having a plurality of phases in a time sequence, and a platen layer configured to protect the ultrasonic transmitter and the piezoelectric receiver layer. The ultrasonic sensor may further include an ultrasonic sensor array and a processor configured to sum the plurality of images multiplied by a complex phase exponential to form an integrated complex image, align the integrated complex image to a pre-selected phase to form an aligned complex image, determine a maximum energy phase using the aligned complex image, and compute a maximum energy image to represent the fingerprint based at least in part on the aligned complex image at the maximum energy phase.

    Abstract translation: 公开了在超声波传感器中校正衍射效应的实施例。 在一个实施例中,超声波传感器可以包括被配置为传送超声波的超声波发射器,被配置为接收超声波的反射波的压电接收层,其中反射波包括多个具有多个 时间序列中的相位和被配置为保护超声波发射器和压电接收器层的压板层。 超声波传感器还可以包括超声波传感器阵列和处理器,其被配置为将乘以复相位指数的多个图像相加以形成集成复合图像,将集成复合图像对准预选相位以形成对准复合图像 使用对准的复合图像确定最大能量相位,并且至少部分地基于在最大能量相位处的对准的复数图像来计算表示指纹的最大能量图像。

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