METHOD OF PROCESSING TRAFFIC INFORMATION AND DIGITAL BROADCAST SYSTEM
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Abstract
A digital broadcast transmitting/receiving system and a method for processing data are disclosed. The method for processing data may enhance the receiving performance of the receiving system by performing additional coding and multiplexing processes on the traffic information data and transmitting the processed data. Thus, robustness is provided to the traffic information data, thereby enabling the data to respond strongly against the channel environment which is always under constant and vast change.
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Citations
41 Claims
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1-37. -37. (canceled)
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38. A digital broadcast transmitter, comprising:
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a pre-processor configured to pre-process enhanced data and known data in advance known to the digital broadcast transmitter and a digital broadcast receiver; a multiplexer configured to multiplex the enhanced data with one or more main audio and video data; a trellis encoder configured to have at least one memory and trellis-encode the multiplexed data, the at least one memory being initialized by initialization data when input data corresponds to a beginning of a sequence of known data; and a data transmission unit configured to insert synchronization data into the trellis-encoded data, modulate the trellis-encoded data having the synchronization data, and transmit the modulated data, wherein the pre-processor comprises; a RS frame encoder configured to generate data frames including the enhanced data and encode each data frame for at least one of an error correction and an error detection; a block encoder configured to encode the enhanced data encoded by the RS frame encoder with a coding rate of G/H, wherein G and H are positive integers and G is less than H; a group formatter configured to insert the data encoded by the block encoder and the known data into a data group having a plurality of regions; a data deinterleaver configured to deinterleave the data included in the data group; and a packet formatter configured to add header data to the deinterleaved data to generate data packets. - View Dependent Claims (39, 40, 41)
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Specification