Sony Corporation

Henry Epsom

Clive Henry Gillard

Robert Mark Stefan Porter

Simon Dominic Haynes

A method of distributing software and supplemental display data and a client device having the same. The method reduces the cost of providing software to a number of devices on a multi-cast network. The software allows the user to gain access to the multi-cast network, and the supplemental display data is transferred to the client device over the network.

Method of distributing software and supplemental display data to a client device

There is disclosed a content protection method and apparatus. The content protection method and apparatus further improves such related schemes by facilitating spatial as well as temporal management of content. This is achieved by storing encrypted content and a corresponding decryption key and destroying the decryption key when suitable. In order to further facilitate the content protection, the decryption key may be received periodically, which allows for a large number of people to connect to the network at different times.

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Newbury, United Kingdom

Henry Epsom