Enensys Technologies

Benoit Bui Do

Ludovic Poulain

Benoit Chauviere

Jean-Baptiste Marie

Alexis Gautier

A method for selecting a data stream for distribution to a plurality of broadcasting sites. The method includes: receiving a main data stream and a back-up data stream respectively, generated by a main broadcast gateway and a secondary broadcast gateway respectively, from source data, called a main stream and a secondary stream respectively; receiving at least one packet including a piece of information representative of a quality of service associated with the main stream and the secondary stream respectively, at one instant at least or over one given period at least, the at least one packet, called a main current packet and a secondary current packet respectively, being generated by the main broadcast gateway and secondary broadcast gateway respectively; and selecting in real time the main stream or the secondary stream respectively in taking account of the main current packet and secondary current packet, delivering the data stream for distribution.

Method for generating a data stream, broadcast gateway, method and device for selecting a data stream and corresponding computer program

A method for generating an original total stream intended for being distributed to at least one broadcasting site, which includes a modulator and a transmitter sending a radiofrequency signal on a first frequency. The method implements the following acts: obtaining at least one transport stream comprising at least one transport packet; obtaining, from at least one modulation parameter for the broadcasting site, at least one starting instant of a modulation frame intended for being sent by the broadcasting site; inserting at least one modulation information packet in the at least one transport stream, at a position determined from the at least one starting instant; and generating the original total stream, including at least one physical layer pipe encapsulating the at least one transport stream carrying the at least one modulation information packet.

Method and piece of equipment for generating an original whole data stream and a modified whole data stream, intended to be broadcast by a broadcasting site and a rebroadcasting site, respectively

A method for generating an STL stream includes, in a local adapter serving a transmitter site in a broadcast network includes: receiving a first STL stream, generated by a broadcast gateway and having at least one frame including: a preamble packet, a timing packet, and at least one BB packet carrying at least one PLP; selecting at least one PLP carried by the BB packets, the BB packet(s) carrying the selected PLPs being called selected BB packet(s); generating an output STL stream including at least one frame having at least: a preamble packet, obtained from the preamble packet of the first STL stream, a timing packet, obtained from the timing packet of the first STL stream, and BB packets corresponding to the selected BB packets of the first STL stream. The frames of the first STL stream and the output STL stream have the same duration.

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Rennes, France

Benoit Bui Do