Terrestrial transmitting station for transmitting a terrestrial broadcast signal, satellite-aided broadcast system and receiver for a satellite-aided broadcast system

US8369774B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Ernst Eberlein · Erlangen, DE
• Albert Heuberger · Erlangen, DE
• Marco Breiling · Berlin, DE
• Stefan Lipp · Bad Liebenzell, DE

Key dates

• Filing date: Jun 14, 2006
• Grant date: Feb 5, 2013
• Expiry date: Jan 13, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04H40/90
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

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.