发明申请
US20080200114A1 Terrestrial Transmitting Station for Transmitting a Terrestrial Broadcast Signal, Satellite-Aided Broadcast System and Receiver for a Satellite-Aided Broadcast System 有权
用于传输地面广播信号的地面发射台,用于卫星辅助广播系统的卫星辅助广播系统和接收机

Terrestrial Transmitting Station for Transmitting a Terrestrial Broadcast Signal, Satellite-Aided Broadcast System and Receiver for a Satellite-Aided Broadcast System
摘要:
A terrestrial transmitting station for sending out a terrestrial broadcast signal includes a first receiver for receiving a signal to obtain a satellite receive signal, a second receiver for receiving a local signal to obtain a local receive signal and a signal combiner for combining the first receive signal with the local receive signal to form a combination signal. The signal combiner is implemented to generate the combination signal so that the combination signal is formed according to a hierarchical modulation, wherein the first receive signal is contained in a base layer of the hierarchical modulation and wherein the local receive signal is contained in an overlay layer of the hierarchical modulation. A terrestrial transmitting station further includes a transmitter for sending out the combination signal. A broadcast system includes a first transmitter and at least one terrestrial transmitting station. The information emitted from the satellite-based broadcast system may be received using an associated receiver. An inventive broadcast system allows adding a local information to a supraregionally emitted transmit signal in a frequency-efficient way.
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