Method of processing traffic information and digital broadcast system
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Accused Products
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
52 Claims
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1-35. -35. (canceled)
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36. A digital broadcast transmitter, comprising:
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a pre-processor configured to pre-process enhanced data, wherein the enhanced data is included in a data group, the data group including known data in advance known to the receiver and a digital broadcast transmitter, wherein regularly spaced sequences of the known data are inserted in the data group; a multiplexer configured to multiplex the enhanced data with one or more main audio and video (AV) data; a trellis encoder configured to have at least one memory and trellis-encode the multiplexed data, the at least one memory being initialized when data corresponds to a start of the sequences of the 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. - View Dependent Claims (37, 38, 39)
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40. A digital broadcast transmitter, comprising:
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a pre-processor configured to pre-process enhanced data, wherein the enhanced data is included in a data group, the data group including known data in advance known to the receiver and a digital broadcast transmitter, wherein regularly spaced sequences of the known data are inserted in the data group; a multiplexer configured to multiplex the enhanced data with one or more main audio and video (AV) data; a post-processor configured to post-process the multiplexed data by encoding enhanced data included in the multiplexed data with a coding rate of G/H which is less than 1; and a trellis encoder configured to have at least one memory and trellis-encode the interleaved data, the at least one memory being initialized when data corresponds to a start of the sequences of the known data. - View Dependent Claims (41, 42)
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43. A digital broadcast transmitter, comprising:
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a pre-processor configured to pre-process enhanced data, wherein the enhanced data is included in a data group, the data group including known data in advance known to the receiver and a digital broadcast transmitter, wherein regularly spaced sequences of the known data are inserted in the data group; a multiplexer configured to multiplex the enhanced data with one or more main audio and video (AV) data; a post-processor configured to post-process the multiplexed data by encoding enhanced data included in the multiplexed data with a coding rate of G/H which is less than 1; a trellis encoder configured to have at least one memory and trellis-encode the post-processed data, the at least one memory being initialized when data outputted from the post-processor corresponds to a start of the sequences of the 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. - View Dependent Claims (44)
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45. A digital broadcast receiver, the receiver comprising:
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a tuner configured to receive enhanced data, wherein the enhanced data is included in a data group, the data group including known data in advance known to the receiver and a digital broadcast transmitter, wherein regularly spaced sequences of the known data are inserted in the enhanced data; an equalizer configured to equalize a channel distortion based on the known data; and a decoder configured to decode the received enhanced data. - View Dependent Claims (46)
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47. A method of processing digital broadcast data in a digital broadcast receiver, the receiver comprising:
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receiving enhanced data, wherein the enhanced data is included in a data group, the data group including known data in advance known to the receiver and a digital broadcast transmitter, wherein regularly spaced sequences of the known data are inserted into the enhanced data; equalizing a channel distortion based on the known data; and decoding the received enhanced data. - View Dependent Claims (48)
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49. A method for processing a digital broadcast signal in a transmitter, the method comprising:
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generating a data group comprising first segments and second segments, wherein the first segments has an enhanced data and a main data and the second segments has an enhanced data only; and transmitting the digital broadcast signal having information corresponding to the data group.
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50. A method for processing a digital broadcast signal in a receiver, the method comprising:
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receiving the digital broadcast signal having information corresponding to a data group, wherein the data group comprises first segments and second segments, the first segments having an enhanced data and a main data, and the second segments having an enhanced data only; and decoding the received digital broadcast signal having the information corresponding to the data group.
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51. An apparatus for processing a digital broadcast signal in a transmitter, the apparatus comprising:
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a generating unit configured to generate a data group comprising first segments and second segments, wherein the first segments has an enhanced data and a main data and the second segments has an enhanced data only; and a transmitting unit configured to transmit the digital broadcast signal having information corresponding to the data group.
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52. An apparatus for processing a digital broadcast signal in a receiver, the apparatus comprising:
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a receiving unit configured to receive the digital broadcast signal having information corresponding to a data group, wherein the data group comprises first segments and second segments, the first segments having an enhanced data and a main data, and the second segments having an enhanced data only; and a decoding unit configured to decode the received digital broadcast signal having the information corresponding to the data group.
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Specification