Receiver for receiving data in a broadcast system

US9692630B2 · kind B2 · utility

Assignee

• SONY GROUP CORPORATION · JP

Inventors

• Junge Qi · Braunschweig, DE
• Joerg Robert · Vreden, DE
• Jan Zoellner · Braunschweig, DE
• Lothar Stadelmeier · Stuttgart, DE
• Nabil Loghin · Stuttgart, DE

Key dates

• Filing date: Nov 26, 2013
• Grant date: Jun 27, 2017
• Expiry date: Nov 26, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L1/22
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A receiver for receiving data in a broadcast system includes a broadcast receiver that receives via the broadcast system a receiver input data stream including plural channel symbols represented by constellation points in a constellation diagram, a demodulator that demodulates the channel symbols into codewords, and a decoder that decodes the codewords into output data words. A redundancy calculator determines a required amount of redundancy data required for correct demodulation and decoding by use of the originally received channel symbol and additional redundancy data. A broadband request unit requests, if demodulation of a channel symbol and/or decoding of a codeword is erroneous or likely to fail, a required amount of redundancy data via a broadband system, that is received by a broadband receiver via said broadband system. The demodulator and/or the decoder is configured to use the redundancy data for demodulation and decoding, respectively.