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.
Abstract: An ultrasonic imaging system and method for imaging human or animal tissue having a surface and including a probe comprising a platen for defining the surface in a manner supporting the human or animal tissue for imaging the same, a transducer positioned closely adjacent the supporting platen for providing an output ultrasonic beam directed on the surface so that the size of the beam at its focal point is as small as possible to maximize the resolution of the system an electrically operated motor for moving the transducer in a manner such that the ultrasonic beam is directed in a path along the surface. A fluid-tight housing extends from the tissue-supporting surface and has an interior region containing the transducer and motor which region is filled by an electrically non-conductive fluid having an acoustic impedance substantially equal to that of water and having a viscosity sufficiently low so as not to impede the movement of the transducer.
Type:
Grant
Filed:
August 9, 1999
Date of Patent:
October 2, 2001
Assignee:
Ultra-Scan Corporation
Inventors:
John K. Schneider, Gerald F. Marshall, Andrew D. Vassallo
Abstract: An ultrasonic imaging system and method for imaging human or animal tissue having a surface and including a probe comprising a platen for defining the surface in a manner supporting the human or animal tissue for imaging the same, a transducer positioned closely adjacent the supporting platen for providing an output ultrasonic beam directed on the surface so that the size of the beam at its focal point is as small as possible to maximize the resolution of the system an electrically operated motor for moving the transducer in a manner such that the ultrasonic beam is directed in a path along the surface. A fluid-tight housing extends from the tissue-supporting surface and has an interior region containing the transducer and motor which region is filled by an electrically non-conductive fluid having an acoustic impedance substantially equal to that of water and having a viscosity sufficiently low so as not to impede the movement of the transducer.
Type:
Grant
Filed:
July 15, 1997
Date of Patent:
August 10, 1999
Assignee:
Ultra-Scan Corporation
Inventors:
John K. Schneider, Gerald F. Marshall, Andrew D. Vassallo
Abstract: An ultrasonic system and method for imaging a surface wherein a C-mode ultrasonic scan is performed over a fixed area of the surface and range gating is applied to that area to a given depth below the surface. For use of the system and method in fingerprint imaging, a live finger is placed upon a sensitive surface, the portion of the finger on the surface is scanned using the ultrasonic energy, and ultrasonic energy returned from the finger portion is received to capture an electronic image of the pattern of ridges and valleys of the fingerprint.
Abstract: An ultrasonic imaging system and method for imaging human or animal tissue having a surface and including a probe comprising a platen for defining the surface in a manner supporting the human or animal tissue for imaging the same, a transducer positioned closely adjacent the supporting platen for providing an output ultrasonic beam directed on the surface so that the size of the beam at its focal point is as small as possible to maximize the resolution of the system an electrically operated motor for moving the transducer in a manner such that the ultrasonic beam is directed in a path along the surface. A fluid-tight housing extends from the tissue-supporting surface and has an interior region containing the transducer and motor which region is filled by an electrically non-conductive fluid having an acoustic impedance substantially equal to that of water and having a viscosity sufficiently low so as not to impede the movement of the transducer.
Type:
Grant
Filed:
February 15, 1995
Date of Patent:
July 15, 1997
Assignee:
Ultra-Scan Corporation
Inventors:
John K. Schneider, Gerald F Marshall, Andrew D. Vassallo
Abstract: An ultrasonic system and method for imaging a surface wherein a C-mode ultrasonic scan is performed over a fixed area of the surface and range gating is applied to that area to a given depth below the surface. For use of the system and method in fingerprint imaging, a live finger is placed upon a sensitive surface, the portion of the finger on the surface is scanned using the ultrasonic energy, and ultrasonic energy returned from the finger portion is received to capture an electronic image of the pattern of ridges and valleys of the fingerprint.
Abstract: An ultrasonic imaging system and method for imaging human or animal tissue having a surface and including a probe including a platen for supporting the human or animal tissue for imaging the same, a transducer positioned closely adjacent the supporting means for providing an output ultrasonic beam directed on the surface so that the size of the beam at its focal point is as small as possible to maximize the resolution of the system and a mechanism for moving the transducer in two directions so as to provide a two dimensional scan of the surface by the ultrasonic beam. There is also provided a scan controller operatively connected to the probe for controlling the mechanism to provide the scan of the surface and a signal processor operatively connected to the probe for receiving signals produced in response to the scan of the surface and for processing the signals.
Type:
Grant
Filed:
November 4, 1993
Date of Patent:
October 10, 1995
Assignee:
Ultra-Scan Corporation
Inventors:
John K. Schneider, Frank W. Keeney, Russell J. Drakes, Stephen M. Gojevic, Nicholas G. Leszczynski, Mark C. Schneider, Darold C. Wobschall