公开(公告)号：US20110074443A1

公开(公告)日：2011-03-31

申请号：US12961007

申请日：2010-12-06

申请人： Ørjan G. MARTINSEN ,  Jon NYSÆTHER ,  Knut RIISNÆS ,  Ingvild Juvkam DYVE ,  Geir MOSTAD ,  Rune PEDERSEN ,  Nicolai W. CHRISTIE ,  Sigmund CLAUSEN

发明人： Ørjan G. MARTINSEN ,  Jon NYSÆTHER ,  Knut RIISNÆS ,  Ingvild Juvkam DYVE ,  Geir MOSTAD ,  Rune PEDERSEN ,  Nicolai W. CHRISTIE ,  Sigmund CLAUSEN

IPC分类号： G01R27/02

CPC分类号： A61B5/6826 ,  A61B5/0531 ,  A61B5/442 ,  A61B5/6838 ,  G06K9/0002 ,  G06K9/00899

摘要： A method and sensor assembly for determining the condition of a structure, especially for confirming if a measured fingerprint is on a live finger, measures characteristics of close to the structure surface. The sensor includes a first pair of current supply electrodes coupled to a current source, providing an electrical current to the skin, at least two pickup electrodes at chosen and different positions relative to the current supply electrodes, at least a first of the pickup electrodes being coupled to an instrument for measuring the voltage between the first pickup electrode and at least one of the pickup or current supply electrodes, storage for a predetermined set of values characterizing a certain condition of the surface, and means for comparing the characteristics from each pickup electrode with the measurements of the other pickup electrodes and with the predetermined set of characteristics for determining the surface condition.

摘要翻译： 用于确定结构状况的方法和传感器组件，特别是用于确认测量的指纹是否在活的手指上，测量靠近结构表面的特性。 传感器包括耦合到电流源的第一对电流供应电极，相对于电流供应电极在选定和不同位置处向皮肤提供电流，至少两个拾取电极，至少第一个拾取电极为 耦合到用于测量第一拾取电极和拾取或供电电极中的至少一个之间的电压的仪器，用于存储表征表面的一定条件的预定值的值，以及用于比较来自每个拾取电极的特性的装置 具有其他拾取电极的测量值以及用于确定表面状态的预定的一组特性。