Abstract: An asperity detection apparatus and method wherein asperities are detected over a period of time. The resultant information can be used to characterize the asperities as three dimensional structures and/or with respect to their elastic and/or resilient behaviors or properties over time.

Abstract: An asperity detection apparatus and method wherein asperities are detected over a period of time. The resultant information can be used to characterize the asperities as three dimensional structures and/or with respect to their elastic and/or resilient behaviors or properties over time.

Abstract: A circuit element (such as an asperity sensor circuit (11)) as is formed (21) using semiconductor fabrication processing has a high resistance layer formed (22) thereover. The high resistance layer is preferably formed using semiconductor fabrication processing. The high resistance layer can be comprised of a variety of materials and can assume a wide variety of configurations.

Abstract: A fingerprint capture device (10) has a plurality of charge storage devices (12) that couple through conductive surfaces (22) to conductive spheres (21) that are disposed within an epoxy that comprises a fingerprint contact surface (13). When raised portions of an object (26) appropriately contact certain conductive spheres (21), the corresponding charge storage device (12) will discharge. This discharging serves both to simultaneously sense the asperity features of the object and to store that sensed information as well.

Abstract: A smartcard device 1200 that includes a single embedded IC chip 1222 that includes smart card circuitry that includes a processor device and memory that is shared with a fingerprint capture device (10) that has a plurality of charge storage devices (12), i.e., the shared memory, that couple through conductive surfaces (22) to conductive spheres (21) that are disposed within an epoxy that comprises a fingerprint contact surface (13). When raised portions of an object (26) appropriately contact certain conductive spheres (21), the corresponding charge storage device (12) will discharge through a separate conductive sphere which is connected to a grounded conductive surface. This discharging serves both to simultaneously sense the asperity features of the object and to store that sensed information as well.

Abstract: An asperity detection apparatus and method wherein asperities are detected over a period of time. The resultant information can be used to characterize the asperities as three dimensional structures and/or with respect to their elastic and/or resilient behaviors or properties over time.