Thomson Licensing S.a.

Thomson Licensing

Helmut Buerklin

Gilles Straub

Renaud Dore

Guillaume Bichot

Patrick Lopez

Vincent Demoulin

Nicolas Burdin

Fabienne Coez

Patrick Pirat

A method for distributed management of a catalogue of objects in a communication network comprising devices. The method comprises the step of registering local objects present in a device in a local registry managed at the level of the device, wherein a local object may formulate a request for a list of objects, and receive a collected response. The request is transmitted to the single local registry of the device hosting the local object and propagated through the local registry to distant registries. The responses are collected by the local registry and the collected response is transmitted to the local object that formulated the initial request. The invention applies in particular within the context of home communication networks.

Method for managing objects in a communication network and implementing device

A process for synchronization in a communications network comprising at least two buses interconnected by a wireless communications network, each bus being linked to the wireless communications network by a portal. The process comprises the steps of: determining a so-called cycle server portal whose own clock will serve as a reference for the other portals; transmitting, via each portal, a synchronization signal at a predetermined instant with respect to the start of a frame and characteristic of each portal, the frame being defined with respect to each portal's own internal clock, the synchronization signal being achieved via the insertion of a control window; and detecting, via each portal, the control windows of other portals and selecting one of the detected windows for the synchronization of the receiver portal's own clock with the clock of the cycle server portal, the selected window corresponding to a portal whose clock is already synchronized with that of the cycle server portal. The invention also relates to receiver and transmitter apparatuses implementing the process.

Method for synchronization in a communication network and implementing appliances

A process and a device for determining node address correspondence in a communication network in which each node is allocated a unique address after each network reset, wherein the addresses of a given node before and after a reset may differ. The process comprises the steps, at the level of a node connected to the network, of determining network topologies based on self-identification packets received before and after network reset, and of comparing these topologies for determining correspondence among addresses of a node before and after reset.

Method for identifying devices in a communication network and device for implementing said method

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Rennes, France

Helmut Buerklin