Telefonaktiebolaget Lm Ericsson (Publ)

Yeda Regina Venturini

Makan Pourzandi

Tereza Cristina Melo De Brito Carvalho

Mats Näslund

Marcos Antonio Simplicio, Jr

Marcos Antonio Simplicio Junior

Diego Gallo

Vlad Constantin Coroama

A method of controlling access to content comprises receiving, at a domain gateway () of a domain (), a request from a device () in the domain for access to the content. It is determined at the domain gateway whether the number of devices in the domain currently accessing the content is equal to a specified maximum number of devices that may simultaneously access the content. The maximum number of devices that may simultaneously access the content is independent of the number of devices in the domain. If the determination is that the number of devices in the domain currently accessing the content is less than the specified maximum number the request is allowed, otherwise it is refused.

Digital rights management in user-controlled environment

A method of key management in a communication network that includes a plurality of groups with each group including one or several members authorized to have access to key-protected services is provided by an apparatus. The method includes determining when a member starts a switching action from one service to another. A time dependent quantity starting from the switching action is determined. The method includes determining that the member is a member of a switching group when the quantity is less than a threshold value is made, and when the quantity is larger than the threshold, determining that the member has decided to join a new group, and changing the appropriate access key(s).

Method and an apparatus for key management in a communication network

Growing community of inventors

Votorantin-SP, Brazil

Yeda Regina Venturini