Object authentication
    1.
    发明授权

    公开(公告)号:US08547537B2

    公开(公告)日:2013-10-01

    申请号:US13487442

    申请日:2012-06-04

    IPC分类号: G06K9/74

    摘要: A device detects multi-spectral imaging by using scan elements. The device may include an illumination module and a detection module to detect light scattered from an object illuminated by the illumination module. The device may also include an array of light sources to produce light at a plurality of different wavelengths, and create a line of illumination with each of the different wavelengths. The light detection may be applied to authenticate and validate documents, such as banknotes moving along a document conveyer.

    Functional Near Infrared Spectroscopy Imaging System and Method
    2.
    发明申请
    Functional Near Infrared Spectroscopy Imaging System and Method 审中-公开
    功能近红外光谱成像系统及方法

    公开(公告)号:US20120232402A1

    公开(公告)日:2012-09-13

    申请号:US13410187

    申请日:2012-03-01

    IPC分类号: A61B6/00

    摘要: Disclosed is a functional NIRS imaging system including an elastomeric cap, a set of transmit optical fibers and a set of receive optical fibers terminating on the inside surface of the elastomeric cap. A pair of light sources combines to produce a collimated light beam at two wavelengths. An optical modulation system, converts the light beam into a plurality of probe light beams, modulates the plurality of probe light beams with a set of pseudo-orthogonal codes and directs each probe light beam into a transmit fiber. An optical detection system accepts scattered photons from subcutaneous tissue underneath the elastomeric cap as a plurality of collected light beams and converts them into a time series of electronic images, stores the electronic images into the memory and processes the electronic images using the pseudo-orthogonal codes. The system displays the resulting image on a display as a hemoglobin oxygen saturation map.

    摘要翻译: 公开了一种功能性NIRS成像系统,其包括弹性帽,一组发射光纤和一组终端在弹性体盖的内表面上的接收光纤。 一对光源组合以产生两个波长的准直光束。 光调制系统将光束转换成多个探测光束,用一组伪正交码对多个探测光束进行调制,并将每个探测光束引导到发射光纤中。 光学检测系统接收来自弹性体帽下方的皮下组织的散射光子作为多个收集的光束并将其转换成时间序列的电子图像,将电子图像存储到存储器中并使用伪正交码处理电子图像 。 系统将显示器上产生的图像显示为血红蛋白氧饱和度图。

    Document sensor
    4.
    发明授权
    Document sensor 有权
    文件传感器

    公开(公告)号:US08194237B2

    公开(公告)日:2012-06-05

    申请号:US12904908

    申请日:2010-10-14

    IPC分类号: G06K9/74

    摘要: A device detects multi-spectral imaging by using line scan elements. The device may include an illumination module and a detection module to detect light scattered from an object illuminated by the illumination module. The device may also include an array of light sources to produce light at a plurality of different wavelengths, and create a uniform line of illumination with each of the different wavelengths. The light detection may be applied to authenticate and validate documents, such as bank notes moving along a document conveyer.

    摘要翻译: 设备通过使用线扫描元素来检测多光谱成像。 该装置可以包括照明模块和检测模块,用于检测从由照明模块照亮的物体散射的光。 该装置还可以包括光源阵列以产生多个不同波长的光,并且产生具有每个不同波长的均匀的照明线。 光检测可以应用于认证和验证文档,例如沿着文件传送器移动的钞票。

    Method and apparatus for spread spectrum distance and velocity profile measurement
    5.
    发明申请
    Method and apparatus for spread spectrum distance and velocity profile measurement 失效
    扩展频谱距离和速度分布测量的方法和装置

    公开(公告)号:US20070165488A1

    公开(公告)日:2007-07-19

    申请号:US11726186

    申请日:2007-03-21

    申请人: Chester Wildey

    发明人: Chester Wildey

    IPC分类号: G01S15/00

    摘要: A method and apparatus for spread spectrum distance and for spread spectrum velocity profile measurement is provided where the short pulse of traditional ultrasonic and radar level gauges is replaced by low peak power direct sequence spread spectrum (DSSS) modulated energy. An echo sequence subtraction process is provided that increases the signal to noise ratio of each echo sequence thus increasing the dynamic range of the system. In addition to providing a higher signal to noise ratio (SNR), better precision and accuracy in ranging Doppler applications and the ability to use lower peak power transmissions, the system is more immune to interference from the environment and allows for less expensive and less bulky ultrasonic transducers.

    摘要翻译: 提供了一种用于扩频距离和扩频速度分布测量的方法和装置,其中传统超声波和雷达液位计的短脉冲被低峰值功率直接序列扩频(DSSS)调制能量代替。 提供了回波序列减法处理,其增加每个回波序列的信噪比,从而增加系统的动态范围。 除了在测距多普勒应用中提供更高的信噪比(SNR),更好的精度和准确性以及使用较低峰值功率传输的能力之外,该系统更能免受来自环境的干扰,并允许更便宜和更小体积 超声换能器。

    DOCUMENT SENSOR
    6.
    发明申请
    DOCUMENT SENSOR 有权
    文件传感器

    公开(公告)号:US20110090485A1

    公开(公告)日:2011-04-21

    申请号:US12904908

    申请日:2010-10-14

    IPC分类号: G06K9/74

    摘要: A device detects multi-spectral imaging by using line scan elements. The device may include an illumination module and a detection module to detect light scattered from an object illuminated by the illumination module. The device may also include an array of light sources to produce light at a plurality of different wavelengths, and create a uniform line of illumination with each of the different wavelengths. The light detection may be applied to authenticate and validate documents, such as bank notes moving along a document conveyer.

    摘要翻译: 设备通过使用线扫描元素来检测多光谱成像。 该装置可以包括照明模块和检测模块,用于检测从由照明模块照亮的物体散射的光。 该装置还可以包括光源阵列以产生多个不同波长的光,并且产生具有每个不同波长的均匀的照明线。 光检测可以应用于认证和验证文档,例如沿着文件传送器移动的钞票。

    Method and apparatus for spread spectrum distance and velocity profile measurement
    7.
    发明授权
    Method and apparatus for spread spectrum distance and velocity profile measurement 失效
    扩展频谱距离和速度分布测量的方法和装置

    公开(公告)号:US07729201B2

    公开(公告)日:2010-06-01

    申请号:US11726186

    申请日:2007-03-21

    申请人: Chester Wildey

    发明人: Chester Wildey

    IPC分类号: G01S15/00

    摘要: A method and apparatus for spread spectrum distance and for spread spectrum velocity profile measurement is provided where the short pulse of traditional ultrasonic and radar level gauges is replaced by low peak power direct sequence spread spectrum (DSSS) modulated energy. An echo sequence subtraction process is provided that increases the signal to noise ratio of each echo sequence thus increasing the dynamic range of the system. In addition to providing a higher signal to noise ratio (SNR), better precision and accuracy in ranging Doppler applications and the ability to use lower peak power transmissions, the system is more immune to interference from the environment and allows for less expensive and less bulky ultrasonic transducers.

    摘要翻译: 提供了一种用于扩频距离和扩频速度分布测量的方法和装置,其中传统超声波和雷达液位计的短脉冲被低峰值功率直接序列扩频(DSSS)调制能量代替。 提供了回波序列减法处理,其增加每个回波序列的信噪比,从而增加系统的动态范围。 除了在测距多普勒应用中提供更高的信噪比(SNR),更好的精度和准确性以及使用较低峰值功率传输的能力之外,该系统更能免受来自环境的干扰,并允许更便宜和更小体积 超声换能器。