Patents by Inventor Christopher H Seal

Christopher H Seal 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: 7424135
    Abstract: Security check method and apparatus reduces problems that can arise if the user security data set becomes known by unauthorized persons. To address this problem only part of the user data set is recorded in insecure sections of the system. For example, a security check preventing unauthorized remote access to a shared computer is provided by capturing a user data set representing a user's iris, operating the user's personal computer to select only a portion of the captured data set requested by the shared computer and transmitting the portion along a telecommunications line. The shared computer derives partial data sets from stored user data sets using a similar selection to that used by personal computer and compares the partial data set it has derived with the partial data set transmitted by the personal computer in deciding whether to grant access. Point-of-sale devices and cards recording only partial user data sets are also disclosed.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: September 9, 2008
    Assignee: British Telecommunications, plc
    Inventors: Maurice M Gifford, Christopher H Seal, David John McCartney
  • Patent number: 6907135
    Abstract: Security check method and apparatus reduces problmes that can arise if the user security data set becomes known by unauthorized persons. To address this problem only part of the user data set is recorded in insecure sections of the system. For example, a security check preventing unauthorized remote access to a shared computer is provided by capturing a user data set representing a user's iris, operating the user's personal computer to select only a portion of the captured data set requested by the shared computer and transmitting the portion along a telecommunications line. The shared computer derives partial data sets from stored user data sets using a similar selection to that used by personal computer and compares the partial data set it has derived with the partial data set transmitted by the personal computer in deciding whether to grant access. Point-of-sale devices and cards recording only partial user data sets are also disclosed.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: June 14, 2005
    Assignee: British Telecommunications public limited company
    Inventors: Maurice M Gifford, Christopher H Seal, David John McCartney
  • Publication number: 20030139951
    Abstract: A reservation system, particularly suited to small businesses, includes, a database accessible through the public switched telephone network (PSTN), an electronic diary at each serviced customer premises and a plurality of customer telephone channels connecting each customer premises to the PSTN.
    Type: Application
    Filed: November 6, 2002
    Publication date: July 24, 2003
    Inventors: Christopher H Seal, David J McCartney
  • Publication number: 20030005150
    Abstract: A telecommunications interface 12 is connected between a voice network 10 (for example the PSTN) and a data network 11 (for example the Internet). Calls from a caller 14 for a recipient 18 are directed to the gateway which accesses user information from a profile 15 to determine how the call is to be routed. The user profile is generated by reference to an appointment calendar 16 (for example Microsoft Outlook), and/or by reference to an organisational hierarchy. Rules based diversion is also provided so that certain calls originating from pre-specified callers (identified by network Calling Line Identification signals) are handled in a more specific manner than calls to the default destination.
    Type: Application
    Filed: June 10, 2002
    Publication date: January 2, 2003
    Inventors: Stephen M Thompson, Christopher H Seal
  • Publication number: 20020122572
    Abstract: A handheld imaging apparatus (125) for capturing an image of an eye (110) comprises a housing (125) having an eyecup (115) at a rear window (120) to position the eye. The housing (125) provides a lineofsight through the apparatus to a front window (140). An angled, semireflecting mirror (145) in the line of sight directs an image of the eve to a camera (135) for the purposes of image capture. The apparatus also includes a transmitter (160) and a receiver (162) to transmit and receive data relating to iris image information to and from a remote apparatus.
    Type: Application
    Filed: July 21, 1999
    Publication date: September 5, 2002
    Inventors: CHRISTOPHER H. SEAL, DAVID JOHN MCCARTNEY, MAURICE MERRICK GIFFORD
  • Patent number: 6309069
    Abstract: An optical apparatus records light reflected from one or more of a user's facial features. While the image is captured, visible light from a display or other scene to be viewed by the user passes to the user's eye. A portable iris pattern capture device is used. Near-infrared light is directed towards the user's eye from where it is reflected back into the apparatus. Visible light from an LCD display mounted at the rear of the apparatus travels out to the user's eye from the apparatus. A hot mirror inside the apparatus directs the near-infrared light reflected from the user's eye to a camera unit, and does not significantly attenuate the visible light emanating from the display.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: October 30, 2001
    Assignee: British Telecommunications public limited company
    Inventors: Christopher H Seal, Maurice M Gifford, David J McCartney
  • Publication number: 20010014167
    Abstract: Methods and apparatus for providing a security check are disclosed. Many conventional security checks require the recording or transmission of a user data sets associated with respective authorized users. A problem arises with these systems if the user data set becomes known by unauthorized persons. In order to address this problem the present invention proposes the recording or transmission of only part of the user data set in insecure sections of the system. For example, a security check preventing unauthorized remote access to a shared computer (20) is provided by capturing a user data set representing a user's iris, operating the user's personal computer (10) to select only a portion of the captured data set requested by the shared computer (20) and transmitting the portion along a telecommunications line (16).
    Type: Application
    Filed: May 14, 1998
    Publication date: August 16, 2001
    Inventors: MAURICE M GIFFORD, CHRISTOPHER H SEAL, DAVID JOHN MCCARTNEY