公开(公告)号：EP1231647B1

公开(公告)日：2008-07-23

申请号：EP01301123.4

申请日：2001-02-08

Applicant: STMicroelectronics Limited

Inventor： Dennis, Carl

IPC: H01L31/0216 ,  H01L27/146 ,  G02B5/20

CPC classification number: H01L27/14621 ,  H01L27/14627

公开(公告)号：EP1353292A1

公开(公告)日：2003-10-15

申请号：EP02252601.6

申请日：2002-04-12

Applicant: STMicroelectronics Limited

Inventor： Dennis, Carl

IPC: G06K9/20 ,  G07C9/00

CPC classification number: G06K9/00013 ,  G06K9/00114

Abstract: Optical biometric sensor apparatus and methods for analysing images of biometric features such as fingerprints and adapted to distinguish between live body members and inanimate objects, and to detect spoofing devices applied to live body members. Live body members are detected by transmitting IR light from a first IR light source (LED) 14 through an object 10 to an image sensor 20. The IR transmission characteristics of a live body member vary with the human heartbeat, and multiple images are analysed to verify whether the object is a genuine live body member. A visible light source (LED) 18 illuminates the object 10 for obtaining a detailed image from the sensor for conventional biometric analysis. Transmitted IR images and reflected visible light images are also processed in order to detect the presence of spoofing devices applied to live body members. Muliple IR and visible light sources of different wavelengths may be employed for this purpose.

Abstract translation: 用于分析诸如指纹的生物特征的图像的光学生物测定传感器装置和方法，并且适于区分活体成员和无生命物体，并且检测应用于活体成员的欺骗装置。 通过将来自第一IR光源（LED）14的IR光通过对象10传输到图像传感器20来检测活体成员。活体部件的IR透射特性随着人的心跳而变化，并且分析多个图像 验证对象是否是真正的活体成员。 可见光源（LED）18照亮物体10以从传感器获得用于常规生物特征分析的详细图像。 传输的IR图像和反射的可见光图像也被处理以便检测应用于活体成员的欺骗装置的存在。 为了这个目的，可以使用多个红外和不同波长的可见光源。

公开(公告)号：EP1231647A1

公开(公告)日：2002-08-14

申请号：EP01301123.4

申请日：2001-02-08

Applicant: STMicroelectronics Limited

Inventor： Dennis, Carl

IPC: H01L31/0216 ,  H01L27/146

CPC classification number: H01L27/14621 ,  H01L27/14627

Abstract: Data is encoded in a solid state image sensor by varying the colour processing (i.e. the colour filter mosaic and/or microlens array) applied to at least some of the border pixels (20) of the sensor pixel array (10). Data may be encoded in the colour processing by varying the pattern of the colour filter mosaic and/or the microlenses in accordance with a predetermined scheme; e.g. by the omission of colour filter material and/or microlenses from selected pixels. The data (typically encoded in binary format) may be read by illuminating the pixel array and processing the output signals from the border pixels. The encoded data may comprise or include colour process codes and/or mask revision codes and/or product codes.

公开(公告)号：EP1577742A1

公开(公告)日：2005-09-21

申请号：EP04251537.9

申请日：2004-03-18

Applicant: STMicroelectronics Limited

Inventor： Dennis, Carl ,  Smith, David

IPC: G06F3/033

CPC classification number: G06F3/0421 ,  G06F3/03543

Abstract: An optical pointing device where an optical assembly (10), comprising a lens and light guide, is formed integrally with a base or footplate (12).