METHOD AND DEVICE FOR THE SEQUENCEL PROCESSING OF A BIOMETRIC PATTERN

摘要

The initial processing is performed by a security token (20). The biometric sample to be processed is routed to a stateless server which receives, processes and returns the biometric sample to the security token (20) for another attempt at verification using the enhanced biometric sample. In a second embodiment of the invention, a second failure of the security token (20) to verify the enhanced biometric sample sends either the enhanced or raw biometric sample to a stateful server (70). The stateful server (70) again processes the biometric sample and performs a one to many search of a biometric database. The biometric database contains the master set of enrolled biometric templates associated with all authorized users. Signals generated by the stateful server are used by the security token (20) to allow or deny access to a resource or function. IMAGE