Back to results
US 8,014,332 B2Granted
Broadcasting receiver and broadcast signal processing method
AssigneeLG Electronics Inc.
InventorsHyen O Oh, In Hwan Choi, Kook Yeon Kwak, Byoung Gill Kim, Won Gyu Song, Jin Woo Kim, Hyoung Gon Lee
Life of this patent
Estimating the term…
Abstract
A digital broadcasting system which is robust against an error when mobile service data is transmitted and a method of processing data are disclosed. The mobile service data is subjected to an additional coding process and the coded mobile service data is transmitted. Accordingly, it is possible to cope with a serious channel variation while applying robustness to the mobile service data.
Claims15
A broadcasting receiver comprising:
- a receiver which receives a broadcast signal including mobile service data and main service data,
- in which the mobile service data is able to construct a data group, the data group is divided into several areas, N number of known data streams are inserted into some areas from among the several areas, and a transmission parameter is inserted between a first known data stream and a second known data stream from among the N number of known data streams;
- a transmission parameter detector for detecting the transmission parameter;
- a block decoder for performing block-unit symbol-decoding of the mobile service data contained in the received broadcast signal on the basis of the detected transmission parameter;
- and
- a decoder for extracting audio data and additional information from the symbol-decoded mobile service data, dequantizing the audio data, converting the dequantized audio data into a time-domain signal for each block according to a length of a block indicated by an identifier contained in the additional information, and restoring an audio signal.
3 more elements
A method for processing a broadcast signal comprising:
- a) receiving a broadcast signal including mobile service data and main service data;
- b) detecting a transmission parameter from the broadcast signal;
- c) performing block-unit symbol-decoding of the mobile service data contained in the received broadcast signal on the basis of the detected transmission parameter;
- and
- d) extracting audio data and additional information from the symbol-decoded mobile service data, dequantizing the audio data, converting the dequantized audio data into a time-domain signal for each block according to a length of a block indicated by an identifier contained in the additional information, and restoring an audio signal, in which the mobile service data is able to construct a data group, the data group is divided into several areas, N number of known data streams are inserted into some areas from among the several areas, and a transmission parameter is inserted between a first known data stream and a second known data stream from among the N number of known data streams.
2 more elements
Dependencies are inferred from the claim text.