British Telecommunications Public Limited Company

Christopher Simon Winter

Richard John Titmuss

Raman Kashyap

Richard E Tateson

Paul M Coker

Marius-Nicolae Busuioc

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.

Data selection system and method therefor

Routing apparatus for a telecommunication system includes a telecommunications user apparatus arranged to generate a request for a telecommunications delivery service, to receive a plurality of telecommunications delivery service offers and to select one of them. The system also intends a plurality of telecommunication service supply apparatuses each arranged to receive one of the request to generate an offer signal specifying a proposed delivery service and to receive an acceptance signal indicating acceptance thereof and, on receipt thereof, to generate a service provision invitation. The system further provides a plurality of resource supplier apparatuses each representing a communications resource arranged to communicate with each of said service supply apparatuses. The resource supplier apparatus is arranged to receive an invitation to determine whether the telecommunications resource they represent would contribute to the provision of the corresponding service; and, if so, to signal this to the service supply apparatus. The service supply apparatus is arranged, on the basis of signals from the resource supplier apparatus to select the route subsequent to the offer of the service.

Telecommunications service delivery

Telecommunications routing based on format of message

Service provision system for communications networks

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.

Optical switching devices having liquid crystal with splayed molecular

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Ipswich, United Kingdom

Christopher Simon Winter