REFLEX LONGITUDINAL IMAGING USING THROUGH SENSOR INSONIFICATION

    公开(公告)号:US20170132446A1

    公开(公告)日:2017-05-11

    申请号:US15414992

    申请日:2017-01-25

    CPC classification number: G06K9/0002 A61B5/1172 G01S15/18 G01S15/8913

    Abstract: An ultrasonic reflex imaging device and a method are described. A device according to the invention may include a platen, a generator, and a receiver positioned between the platen and the generator. A backer may be positioned so that the insonification device is between the receiver array and the backer. The backer may be configured to absorb or delay energy that originated from the generator. The generator produces an energy pulse, which travels through the receiver and the platen to reach a biological object. Part of the energy pulse is reflected from the biological object. The reflected energy pulse travels through the platen to the detector. The detector converts the reflect energy pulse to electric signals, which are then interpreted to create an image of the biological object.

    SURFACE CONTACT IMAGING SENSOR
    23.
    发明申请
    SURFACE CONTACT IMAGING SENSOR 有权
    表面接触成像传感器

    公开(公告)号:US20160309108A1

    公开(公告)日:2016-10-20

    申请号:US15191360

    申请日:2016-06-23

    Abstract: An imaging system disposed on a TFT array employing a capacitance input sensing stage into a diode peak detecting circuit used as a single pixel on a semiconductor or TFT array that is capable of accessing the generated charge across the capacitor, peak detecting it, amplifying it and then distributing it to an external system via row and column addressing. The resulting imaging system is suitable for fingerprint imaging or as a computer touchpad input device.

    Abstract translation: 一种成像系统,其设置在采用电容输入感测级的TFT阵列上,作为在半导体或TFT阵列上用作单个像素的二极管峰值检测电路,该半导体或TFT阵列能够访问电容器两端产生的电荷,对其进行峰值检测,对其进行放大, 然后通过行和列寻址将其分发到外部系统。 所得到的成像系统适用于指纹成像或作为计算机触摸板输入装置。

    Systems and methods for acquiring biometric information
    24.
    发明授权
    Systems and methods for acquiring biometric information 有权
    用于获取生物特征信息的系统和方法

    公开(公告)号:US09453822B2

    公开(公告)日:2016-09-27

    申请号:US14099363

    申请日:2013-12-06

    Abstract: The invention may be embodied as a fingerprint scanner having an ultrasonic wave detector, a platen, an ultrasonic wave generator located between the detector and the platen. The invention may be embodied as a method of scanning a finger. One such method includes providing a platen, a detector and a generator, the generator being placed between the platen and the detector. A finger may be provided on the platen, and an ultrasound wave pulse may be sent from the generator toward the finger. The wave pulse may be reflected from the finger, and received at the detector. The received wave pulse may be used to produce an image of the finger.

    Abstract translation: 本发明可以被实现为具有超声波检测器,压板,位于检测器和压板之间的超声波发生器的指纹扫描器。 本发明可以被实施为扫描手指的方法。 一种这样的方法包括提供压板,检测器和发生器,发电机被放置在压板和检测器之间。 可以在压板上设置手指,并且可以从发生器向手指发送超声波脉冲。 波脉冲可以从手指反射并在检测器处接收。 所接收的波脉冲可用于产生手指的图像。

    Liveness detection via ultrasonic ridge-valley tomography

    公开(公告)号:US09946914B1

    公开(公告)日:2018-04-17

    申请号:US15356424

    申请日:2016-11-18

    CPC classification number: G06K9/0002 G06K9/0008

    Abstract: An apparatus may include an ultrasonic sensor system and a control system. The control system may be configured for controlling the ultrasonic sensor system to obtain first ultrasonic data from at least a part of a target object proximate a surface of the apparatus. The control system may be configured for receiving the first ultrasonic data from the ultrasonic sensor system and for identifying one or more fingerprint ridge features and one or more fingerprint valley features corresponding to the first ultrasonic data. The control system may be configured for determining, based on the first ultrasonic data, one or more fingerprint valley time intervals corresponding to a depth of one or more fingerprint valley features and for performing a spoof detection process based, at least in part, on the one or more fingerprint valley time intervals.

    Spoof detection by ultrasonic subdermal probe

    公开(公告)号:US09726755B2

    公开(公告)日:2017-08-08

    申请号:US14863114

    申请日:2015-09-23

    CPC classification number: G01S7/539 G06K9/00107 G06K9/0012 G06K9/00899

    Abstract: Methods and systems of determining whether an object is alive, and therefore part of a live individual, are described. An object having an outer surface (e.g. a friction-ridge surface of a finger) and internal parts (e.g. tissue layer, papillae, blood vessels, fat, muscle, nail and bone) is scanned by a system having a transmitter, receiver and computer. One such system has a substantially planar piezoelectric transmit-layer, an ultrasonic receiver array having a plurality of receivers, and a platen. The transmit layer is caused to produce an ultrasound plane-wave traveling toward the object residing on the platen. Using the ultrasonic receiver, ultrasonic energy that has been reflected from the object is detected. The detected ultrasonic energy is analyzed to provide an analysis result, and the analysis result is compared to a template. A determination is made as to whether the analysis result and the template are similar, and the object is declared to be alive if the analysis result is determined to be similar to the template.

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