Patent ID: 7929736
Filing Date: 2011-04-19
Classification: G06F,G06K

Abstract:
1. A finger guide device for mounting over a fingerprint sensor, the fingerprint sensor being disposed in the grip of a stylus or pen, said fingerprint sensor being integral to the stylus or pen, the finger guide device having concave sidewalls, the concave sidewalls having the same general shape as a finger, the surfaces having a coefficient of friction that is sufficiently low for enabling the finger to slide downwardly until reaching a stable position of global minimum, the fingerprint sensor being disposed in a position of the global minimum relative to the concave sidewalls, the concave sidewalls being ergonomically designed to guide the finger of a user onto the fingerprint sensor in essentially the same position in an axial direction and in a lateral direction, the finger guide device enabling generally the same relevant portions of the finger to rest in a stable position onto the fingerprint sensor repeatably each time the stylus or pen is used to generate a writing, the finger guide device reducing the incidents of “false rejects” for purposes of identification or authentication of a person using the stylus or pen; wherein tactile feedback guides the finger to the same location over the position of global minimum through communication to the user each time the stylus or pen is used.