Abstract: A method and apparatus relating to a receiver/decoder in a digital television environment, including logical devices (including logical demultiplexer devices) for representing physical and other devices in the receiver/decoder. The method includes the instantiation of devices by the receiver/decoder as required to support functionality thereof. The method further includes the use of multiple demultiplexers/remultiplexers, for example in the recording of more than one service simultaneously; and a control word device for the management of control word operations; the use of two or more tuners. Various elements of a digital television system (such as a receiver/decoder and a set top box) are also disclosed.
Type:
Grant
Filed:
August 21, 2002
Date of Patent:
July 19, 2011
Assignee:
Canal + Technologies Societe Anonyme
Inventors:
Francois Le Crom, Patrice Letourneur, Michel Maillard