Patent ID: 7302088
Filing Date: 2007-11-27
Classification: G06K

Abstract:
1. A personal verification device comprising: a first detection section that detects characteristic information of an operator; a second detection section that detects a pulse wave of the operator; an index extraction section that extracts at least one index by processing the pulse wave detected by the second detection section; a first storage section that stores first reference information that is compared with the characteristic information; a second storage section that stores second reference information that is compared with the at least one index; and a verification section that outputs a signal indicating that the operator is true when the operator is determined to be the same person as a registered person based on the result of comparison between the characteristic information and the first reference information, and also to be alive based on the result of comparison between the at least one index and the second reference information, the characteristic information being a fingerprint, the first detection section being a fingerprint sensor that detects a capacitance that changes corresponding to ridges and valleys on a surface of a fingertip of the operator, and fingerprint information of the registered person being stored in the first storage section, the fingerprint sensor including a signal detection element and a signal amplification element, the signal detection element including a capacitance detection electrode and a capacitance detection dielectric film that covers the capacitance detection electrode, and the signal amplification element being formed of a signal amplification thin film MIS semiconductor device that includes a gate electrode, a gate insulating film, and a semiconductor film, and the gate electrode being connected to the capacitance detection electrode.