专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4684802A Elliptical finger press scanner with rotating light source 失效
标题翻译：带旋转光源的椭圆形手指按压扫描仪
公开(公告)号：US4684802A
公开(公告)日：1987-08-04
申请号：US830650
申请日：1986-02-18
申请人： Paul A. Hakenewerth , Aspi B. Wadia , James R. Walker , James M. White
发明人： Paul A. Hakenewerth , Aspi B. Wadia , James R. Walker , James M. White
IPC分类号： A61B5/117 , G02B26/10 , G06T1/00 , H01J3/14 , G06K9/00
CPC分类号： A61B5/1172
摘要： A scanner for scanning an increased area of a finger held or pressed on a concave elliptically cylindrical surface having two focal axes includes a linear light source positioned at one focal axis of a first reflective cylindrical elliptical surface, the other focal axis coinciding with one focal axis of the concave elliptical surface in contact with the finger. A second reflective, cylindrical elliptical surface has two focal axes where one of the axes coincides with the position of a linear array combination of photosensitive elements and charged coupled devices and the other coincides with the other focal axis of the concave elliptical surface in contact with the finger. The linear light source resides within a scanning drum having a longitudinal opening or slit and suitable rotated whereby a line of light is projected along the cylindrical elliptical surface of the first reflective surface whereby light rays are reflected to the finger contact surface to scan a finger held thereon and then totally internally reflected to the second reflective surface and then reflected therefrom as an image on the linear array.
摘要翻译：用于扫描保持或按压在具有两个焦轴的凹形椭圆柱形表面上的手指的增加区域的扫描仪包括位于第一反射圆柱形椭圆表面的一个焦点轴线处的线性光源，另一个焦点轴线与一个焦点轴线重合的凹形椭圆表面与手指接触。第二反射圆柱形椭圆表面具有两个焦点轴，其中一个轴与感光元件和带电耦合器件的线性阵列组合的位置重合，另一个与凹形椭圆表面的另一个焦点轴线接触，手指。线性光源位于具有纵向开口或狭缝的扫描鼓中，并适当地旋转，由此一线光沿着第一反射表面的圆柱形椭圆表面突出，由此光线被反射到手指接触表面以扫描手指保持然后全部内反射到第二反射表面，然后作为在线性阵列上的图像反射。

2. 发明授权

US5054088A Signature verification data compression for storage on an identification card 失效
标题翻译：识别卡上存储的签名验证数据压缩
公开(公告)号：US5054088A
公开(公告)日：1991-10-01
申请号：US409906
申请日：1989-09-20
申请人： Steven C. Gunderson , Aspi B. Wadia
发明人： Steven C. Gunderson , Aspi B. Wadia
IPC分类号： G07F7/12 , G06F3/041 , G06F3/048 , G06K9/00 , G06K17/00 , G06T7/00 , G07C9/00
CPC分类号： G07C9/00063 , G06K9/00154
摘要： Apparatus and methods are described which take advantage of the peculiar characteristics of dynamic signature data while segmenting and compressing such data for storage on a limited capacity device. Compression is accomplished by digital oversampling, segmenting, filtering, decimating and later interpolating reference signature data, thereby allowing storage in compressed form without significant matching degradation. The pen down and pen up information which define signature segments is separated from the pressure waveform and stored in a separate array for each reference signature. The acceleration and pressure data are then filtered, decimated and stored for each reference signature. Later, during identity verification, the stored acceleration and pressure data are restored to an oversampled rate by interpolation. To verify the identity of a person supplying a trial signature, each segment of the trial signature is compared with corresponding segments of one or more of the stored reference signatures.

3. 发明授权

US4720869A Hand dimension verification 失效
标题翻译：手尺寸验证
公开(公告)号：US4720869A
公开(公告)日：1988-01-19
申请号：US830772
申请日：1986-02-18
申请人： Aspi B. Wadia
发明人： Aspi B. Wadia
IPC分类号： A61B5/107 , G06K9/00 , G06T7/00 , G07C9/00
CPC分类号： G06K9/00885 , G06K9/00362 , G06K9/00382 , G07C9/00158
摘要： Improved method and apparatus are provided for hand dimension verification. A two dimensional scanner provides image data from top and angled scans to an image processor which processes this data to develop invariable hand measurements using reference points located from contour sequences generated from the image scan data. The reference points are located so as to be immune from variations introduced by fingernail length, hand pressure and finger spread. Finger width measurements are made using certain reference points and finger width variations are used to determine the presence of abnormalities which could be natural or introduced by wearing of jewelry. The finger width variations are in effect removed by locating finger contour points at the beginning and ending of the variations and using finger slope data for trimming and thereby provide invariable finger width measurements together with finger thickness, finger length and hand area measurements for hand dimension verification.
摘要翻译：提供改进的方法和装置用于手部尺寸验证。二维扫描仪将图像数据从顶部和倾斜的扫描器提供到图像处理器，图像处理器使用从图像扫描数据生成的轮廓序列中的参考点处理该数据来开发不变的手测量。参考点被定位成免受由指甲长度，手压和手指扩散引起的变化。使用某些参考点进行手指宽度测量，并使用手指宽度变化来确定穿戴首饰可能是天然的或引入的异常的存在。手指宽度变化实际上通过在变化的开始和结束处定位手指轮廓点并使用手指斜率数据进行修剪来实现去除，从而提供不变的手指宽度测量以及用于手部尺寸验证的手指厚度，手指长度和手部区域测量。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式