User terminal for interactive digital telebroadcasting system
First Claim
1. A terminal for interactive telebroadcasting system conforming to at least one specified telebroadcasting standard, comprising:
- at least one unit for adaptation to a physical medium of a telebroadcasting standard, the unit including;
means for receiving a telebroadcast signal of the telebroadcasting standard so as to produce downstream information extracted from the telebroadcast signal;
means for generating a transmission time base from the downstream information;
means for transmitting a return signal, wherein the return signal is clocked as a function of the transmission time base; and
at least one control unit including a calculation unit having means for generating upstream information, the calculation unit being clocked as a function of the transmission time base.
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Accused Products
Abstract
A terminal for interactive telebroadcasting system comprising on the one hand a unit for adaptation to the physical telebroadcasting medium and on the other hand a control unit. The first unit comprises a receiver for receiving of a telebroadcast signal and for producing downstream information extracted from the signal, a transmission time based generator for generation of a transmission time base from the downstream information and a transmitter for transmission of a return signal, which are clocked as a function of the transmission time base. The second unit comprises a calculation unit having means of generating upstream information. The calculation unit is clocked as a function of the transmission time base.
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Citations
17 Claims
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1. A terminal for interactive telebroadcasting system conforming to at least one specified telebroadcasting standard, comprising:
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at least one unit for adaptation to a physical medium of a telebroadcasting standard, the unit including;
means for receiving a telebroadcast signal of the telebroadcasting standard so as to produce downstream information extracted from the telebroadcast signal;
means for generating a transmission time base from the downstream information;
means for transmitting a return signal, wherein the return signal is clocked as a function of the transmission time base; and
at least one control unit including a calculation unit having means for generating upstream information, the calculation unit being clocked as a function of the transmission time base. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A terminal for interactive telebroadcasting system conforming to at least one specified telebroadcasting standard, comprising:
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at least one unit for adaptation to a physical medium of a telebroadcasting standard, the unit including;
a receiver module for receiving a telebroadcast signal of the telebroadcasting standard so as to produce a downstream information extracted from the telebroadcast signal;
a time base generator module for generating a transmission time base from the downstream information;
a transmission module for transmitting a return signal, wherein the return signal is clocked as a function of the transmission time base; and
at least one control unit including a calculation unit having means for generating upstream information, the calculation unit being clocked as a function of the transmission time base.
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Specification