FIELD: information technology.
SUBSTANCE: service interaction system includes a first system and a second system which is a development of the first system and can decode control signals and broadcast signals used by the first system. The first and second systems provide services using frequency bands which do not overlap with each other.
EFFECT: possibility of interaction.
13 cl, 9 dwg
Authors
Dates
2010-12-27—Published
2008-02-01—Filed