Patents by Inventor Christopher S Winter

Christopher S Winter 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).

  • Data selection system and method therefor
    Patent number: 6947937
    Abstract: A method of sorting large quantities of data is implemented on a computer based system. The method comprises defining a plurality of sort statements, determining the relevance of each of the sort statements to each data file in the database, defining a site on a display for each of the sort statements, representing the data files as elements on the display, and causing the elements to move from an initial position towards the sites according to the relevance of the respective sort parameters to the respective data files and the position of the sites relative to the respective elements.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: September 20, 2005
    Assignee: British Telecommunications public limited company
    Inventors: Christopher S Winter, Paul M Coker, Richard E Tateson
  • Telecommunications routing based on format of message
    Patent number: 6167122
    Abstract: A telecommunications apparatus includes selecting and routing a signal destined for a user to one of a plurality of different terminals near to the user and operating in accordance with different signal formats, in dependence upon the format of said signal.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: December 26, 2000
    Assignee: British Telecommunications public limited company
    Inventors: Richard J Titmuss, Christopher S Winter
  • Service provision system for communications networks
    Patent number: 6151309
    Abstract: A services management system can provide services to a mobile user, via a combination of network platforms. The system uses "Co-operating Intelligent Software Agent" technology in a heterogeneous agent architecture to provide enough flexibility to deal with changing network constraints, for instance as the user moves. In an example, a fixed broadband network might be used in combination with radio transmitters of a mobile network. The agent architecture, involving autonomous agents working co-operatively, forms a layered system using the underlying fixed network for inter-agent communication. In an application, a mobile user might move from a cell of the mobile network which can provide relatively wide bandwidth to one which can only provide limited bandwidth. The service management system can advise the user what services are available in either cell, at what price, based on current bandwidth usage at the two locations.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: November 21, 2000
    Assignee: British Telecommunications public limited company
    Inventors: Marius-Nicolae Busuioc, Richard J. Titmuss, Christopher S. Winter
  • Optical switching devices having liquid crystal with splayed molecular orientation
    Patent number: 4840461
    Abstract: An optical switch, e.g. a blocking switch or a coupler switch, has a liquid crystal control element which, in at least one of its control configurations, has a splayed molecular orientation. In a preferred embodiment the liquid crystal is surrounded by chemical control surfaces, e.g. by homeotropically coated control surfaces.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: June 20, 1989
    Assignee: British Telecommunications public limited company
    Inventors: Christopher S. Winter, Raman Kashyap