Patents by Inventor Dinah L. M. Davis

Dinah L. M. Davis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8543822
    Abstract: A first device in possession of a value is able to determine, without communicating the value and without communicating any information from which the value can be identified, whether a second device is also in possession of the value. The first device accomplishes this with the assistance of a third device that is able to communicate with the first device and with the second device. The second device also does not communicate the value and does not communicate any information from which the value can be identified. The first device may send additional information to the third device which, if passed to the second device, enables the second device to determine that the first device is in possession of the value. The value may be a secret.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: September 24, 2013
    Assignee: BlackBerry Limited
    Inventors: Michael K. Brown, Herbert A. Little, Dinah L. M. Davis
  • Publication number: 20120297194
    Abstract: A first device in possession of a value is able to determine, without communicating the value and without communicating any information from which the value can be identified, whether a second device is also in possession of the value. The first device accomplishes this with the assistance of a third device that is able to communicate with the first device and with the second device. The second device also does not communicate the value and does not communicate any information from which the value can be identified. The first device may send additional information to the third device which, if passed to the second device, enables the second device to determine that the first device is in possession of the value. The value may be a secret.
    Type: Application
    Filed: March 26, 2012
    Publication date: November 22, 2012
    Applicant: Research In Motion Limited
    Inventors: Michael K. Brown, Herbert A. Little, Dinah L. M. Davis
  • Patent number: 8074880
    Abstract: The described embodiments relate generally to methods and systems for fingerprint authentication for a computing device. In one embodiment, the method comprises: storing a default finger swipe scan direction; receiving a finger swipe scan; authenticating the received finger swipe scan; determining a received finger swipe scan direction; and configuring the default finger swipe scan direction. The computing device may comprise a mobile device.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: December 13, 2011
    Assignee: Research In Motion Limited
    Inventors: Michael K. Brown, Neil P. Adams, Dinah L. M. Davis
  • Publication number: 20100288839
    Abstract: The described embodiments relate generally to devices, methods and systems for managing access to a memory card, such as a smart card, by a plurality of accessing devices. Certain embodiments relate to a smart card reader (SCR) for managing access to a smart card by a plurality of accessing devices. The SCR comprises: a processor; a channel manager responsive to the processor for interfacing with the smart card; and a communication interface responsive to the channel manager for communicating with the plurality of accessing devices.
    Type: Application
    Filed: July 30, 2010
    Publication date: November 18, 2010
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Neil P. Adams, Michael E. McCallum, Dinah L.M. Davis, Ravi Singh, Richard P. Sibley, Herbert A. Little
  • Patent number: 7766243
    Abstract: The described embodiments relate generally to devices, methods and systems for managing access to a memory card, such as a smart card, by a plurality of accessing devices. Certain embodiments relate to a smart card reader (SCR) for managing access to a smart card by a plurality of accessing devices. The SCR comprises: a processor; a channel manager responsive to the processor for interfacing with the smart card; and a communication interface responsive to the channel manager for communicating with the plurality of accessing devices.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: August 3, 2010
    Assignee: Research In Motion Limited
    Inventors: Neil P. Adams, Michael E. McCallum, Dinah L. M. Davis, Ravi Singh, Richard P. Sibley, Herbert A. Little
  • Publication number: 20100133338
    Abstract: The described embodiments relate generally to methods and systems for fingerprint authentication for a computing device. In one embodiment, the method comprises: storing a default finger swipe scan direction; receiving a finger swipe scan; authenticating the received finger swipe scan; determining a received finger swipe scan direction; and configuring the default finger swipe scan direction. The computing device may comprise a mobile device.
    Type: Application
    Filed: December 1, 2008
    Publication date: June 3, 2010
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Michael K. BROWN, Neil P. ADAMS, Dinah L. M. DAVIS
  • Publication number: 20100106970
    Abstract: Authentication of two devices in communication with a third device is achieved where the first and second devices each possess a shared secret value. The authentication includes communication of authentication values from the first device to the second device using the third device. Similarly, there is communication of values from the second device to the first device using the third device. The third device retains the communicated values. The values are calculated to permit the third device to authenticate the first and second devices without the third device receiving the shared secret value. The authentication may be used to establish a communications channel between the first and the second devices.
    Type: Application
    Filed: January 11, 2010
    Publication date: April 29, 2010
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Michael K. BROWN, Herbert A. LITTLE, Dinah L. M. DAVIS
  • Patent number: 7647498
    Abstract: Authentication of two devices in communication with a third device is achieved where the first and second devices each possess a shared secret value. The authentication includes communication of authentication values from the first device to the second device using the third device. Similarly, there is communication of values from the second device to the first device using the third device. The third device retains the communicated values. The values are calculated to permit the third device to authenticate the first and second devices without the third device receiving the shared secret value. The authentication may be used to establish a communications channel between the first and the second devices.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: January 12, 2010
    Assignee: Research In Motion Limited
    Inventors: Michael K. Brown, Herbert A. Little, Dinah L. M. Davis
  • Publication number: 20080022043
    Abstract: The described embodiments relate generally to devices, methods and systems for managing access to a memory card, such as a smart card, by a plurality of accessing devices. Certain embodiments relate to a smart card reader (SCR) for managing access to a smart card by a plurality of accessing devices. The SCR comprises: a processor; a channel manager responsive to the processor for interfacing with the smart card; and a communication interface responsive to the channel manager for communicating with the plurality of accessing devices.
    Type: Application
    Filed: March 16, 2007
    Publication date: January 24, 2008
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Neil P. Adams, Michael E. McCallum, Dinah L.M. Davis, Ravi Singh, Richard P. Sibley, Herbert A. Little