Transmission system between a distribution center and a subscriber
OwnerDavid Harrisoninventor
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Abstract
The invention relates to a system for transmitting data between a distribution centre and a subscriber, this system transporting a useful signal to the subscriber and possessing a return path, characterized in that a carrier signal is transmitted in addition to the useful signal and in that the frequency of the signal transmitted over the return path is synchronized with the frequency of the carrier signal. Application to satellite television.
Claims8
System for transmitting data between a distribution centre (1) and a subscriber (3i), this system transporting a useful signal to the subscriber and possessing a return path, characterized in that a carrier signal is transmitted in addition to the useful signal and in that the frequency of the signal transmitted over the return path is synchronized with the frequency of the carrier signal.
System according to any one of the preceding claims, characterized in that the data are those of television pictures and transmission is performed by satellite.
Dependencies are inferred from the claim text.