British Broadcasting Corporation

Richard Bradbury

Andrew Lipscombe

Tony Ageh

Jurgen Hoehn

Matthew Browning

Julie Dodd

Fraser Pearce

Gemma Garmeson

Ben Gammon

Julia Whitney

Juergen Hoehn

Julie Whitney

Julia Dodd

A system for delivering content at varying qualities from a server to multiple client across a network has a server side converter and a client side converter. The server side converter makes unicast requests to a server for representations of content and converts these to multiple representations to be delivered as multicast streams. The client side converter receives a request for content from clients, determines a representation of content to obtain and subscribes to an appropriate multicast stream. The client side then converts the multicast stream back into segments available to a client by unicast request. In this way, data is delivered efficiently across a network from a server side to a client side whilst maintaining compatibility that client devices can issue traditional unicast requests.

Content delivery

Various embodiments include a system for providing users access to audio/visual content, the system comprising means for storing content, means for broadcasting content on a scheduled basis, means for downloading the stored content from the storage means, means for enabling a user to access the downloaded content only within a specified time period, means for streaming content off the storage means, and means for receiving the content broadcast on a scheduled basis.

Accessing content

A system for delivering content at varying qualities from a server to multiple client across a network has a server side converter and a client side converter. The server side converter makes unicast requests to a server for representations of content and converts these to multiple representations to be delivered as multicast streams. The client side converter receives a request for content from clients, determines a representation of content to obtain and subscribes to an appropriate multicast stream. The client side then converts the multicast stream back into segments available to a client by unicast request. In this way, data is delivered efficiently across a network from a server side to a client side while maintaining compatibility that client devices can issue traditional unicast requests.

Growing community of inventors

London, United Kingdom

Richard Bradbury