公开(公告)号：JP2001307078A

公开(公告)日：2001-11-02

申请号：JP2001091575

申请日：2001-03-28

Applicant: ST MICROELECTRONICS INC

Inventor： RAYNAL FREDERIC ,  FABRIZZIO VITO

IPC: A61B5/117 ,  G06K9/00 ,  G06T1/00 ,  G07C9/00

Abstract: PROBLEM TO BE SOLVED: To provide a small-sized and inexpensive fingerprint sensor. SOLUTION: This fingerprint sensing system is provided with an array composed of capacitive sensing elements and the array is provided with a first dimension which is almost the width of a fingerprint and a second dimension shorter than the length of the fingerprint. A scanning control unit is connected so as to scan the array at a scanning speed decided by the moving speed of a finger on the array and the scanning control unit scans the array and captures a partial fingerprint image. Output logic is connected to the array so as to assemble the captured fingerprint image to a complete fingerprint image based on the moving direction of the finger on the array. A mouse device is positioned adjacently to the array within the moving route of the finger on the array.