Abstract: The most preferred method of augmenting an existing token-based identification system is to splice into a data stream transmitted from a token reader to a control panel such that an acquired token factor from a user is intercepted by a biometric identification, or authentication, system that is wedged in series at a splice in the data stream. When the token reader transmits a data stream, such as a Wiegand interface, to the control panel, the data stream is used by the biometric identification system to prompt the user to present an anatomical feature to a biometric reader. The biometric reader creates a biometric inquiry template that is transmitted to a biometric search engine, along with the acquired token factor, such as a PIN or barcode, to perform data match analysis against one or more enrollment templates associated with the acquired token factor. The search engine will either match an authorized user or reject an unidentifiable user.

Abstract: The most preferred method of augmenting an existing token-based identification system is to splice into a data stream transmitted from a token reader to a control panel such that an acquired token factor from a user is intercepted by a biometric identification, or authentication, system that is wedged in series at a splice in the data stream. When the token reader transmits a data stream, such as a Wiegand interface, to the control panel, the data stream is used by the biometric identification system to prompt the user to present an anatomical feature to a biometric reader. The biometric reader creates a biometric inquiry template that is transmitted to a biometric search engine, along with the acquired token factor, such as a PIN or barcode, to perform data match analysis against one or more enrollment templates associated with the acquired token factor. The search engine will either match an authorized user or reject an unidentifiable user.