Invention Grant
US08180118B2 Finger sensing device with spoof reduction features and associated methods 有权
手指感应装置具有防伪功能及相关方法

Finger sensing device with spoof reduction features and associated methods
Abstract:
A finger sensing device may include a finger sensing area, at least one processing stage coupled to the finger sensing area and having at least one adaptively determined processing parameter, and a controller for spoof reduction. More particularly, the controller may determine a spoof attempt based upon a change in the at least one adaptively determined processing parameter. For example, the at least one adaptively determined processing parameter may include a feedback determined processing parameter. Accordingly, the finger sensing device has enhanced spoof reduction, since different materials, for example, will cause a change in an adaptive processing parameter and thereby indicate the attempted spoof.
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