VSB communication system
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Abstract
A VSB communication system comprises a VSB transmission system and a VSB reception system. The VSB transmission system multiplexes a coded MPEG data and a coded supplemental data having a null sequence inserted therein, with required multiplexing information included in a field synchronization signal or in a supplemental data according to a number of the supplemental data packets being transmitted. The VSB reception system detects the required multiplexing information from the field synchronization signal or the supplemental data and decodes the multiplexed data by using the null sequence and the detected multiplexing information, as well as demultiplexes the multiplexed data into the MPEG data and the supplemental data.
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Citations
71 Claims
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1-48. -48. (canceled)
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49. A method of multiplexing supplemental data with main data in a VSB transmitter, the method comprising the step of:
multiplexing a plurality of enhanced supplemental data segments generated by inserting null bits into original supplemental data packets with a plurality of main data segments in a data field, wherein positions of the enhanced supplemental data segments are assigned to every fourth segment starting from at least one predetermined start position within the data field. - View Dependent Claims (50)
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51. A method of multiplexing supplemental data with main data in a VSB transmitter, the method comprising the step of:
multiplexing a plurality of enhanced supplemental data segments generated by inserting null bits into original supplemental data packets with a plurality of main data segments in a data field, wherein positions of the enhanced supplemental data segments are assigned to every fourth segment starting from a predetermined start position within the data field. - View Dependent Claims (52)
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53. A method of multiplexing supplemental data with main data in a VSB transmitter, the method comprising the step of:
multiplexing a plurality of enhanced supplemental data segments generated by inserting null bits into original supplemental data packets with a plurality of main data segments in a data field, wherein positions of the enhanced supplemental data segments are assigned to every fourth segment starting from a first predetermined start position within the data field, and to every fourth segment starting from a second predetermined start position within the data field. - View Dependent Claims (54)
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55. A method of multiplexing supplemental data with main data in a VSB transmitter, the method comprising the step of:
multiplexing a plurality of enhanced supplemental data segments generated by inserting null bits into original supplemental data packets with a plurality of main data segments in a data field, wherein positions of the enhanced supplemental data segments are assigned to every fourth segment starting from a first predetermined start position within the data field, to every fourth segment starting from a second predetermined start position within the data field, and to every fourth segment starting from a third predetermined start position within the data field. - View Dependent Claims (56)
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57. A method of multiplexing supplemental data with main data in a VSB transmitter, the method comprising the step of:
multiplexing a plurality of enhanced supplemental data segments generated by inserting null bits into original supplemental data packets with a plurality of main data segments in a data field, wherein positions of the enhanced supplemental data segments are assigned to every fourth segment starting from a first predetermined start position within the data field, to every fourth segment starting from a second predetermined start position within the data field, to every fourth segment starting from a third predetermined start position within the data field, and to every fourth segment starting from a fourth predetermined start position within the data field. - View Dependent Claims (58)
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59. A method of multiplexing supplemental data with main data in a VSB transmitter, the method comprising the step of:
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multiplexing a plurality of enhanced supplemental data segments generated by inserting null bits into original supplemental data packets with a plurality of main data segments in a data field, wherein the positions of the plurality of enhanced supplemental data segments in the data field are expressed by the following equations;
for 0≦
P≦
39;
MAP={s|s=4i+1, i=0, 1, . . . , 2P−
1};
for 40≦
P≦
78;
MAP={s|s=4i+1, i=0, 1, . . . , 77}U {s|s=4i+3, i=0, 1, . . . , 2P−
79};
for 79≦
P≦
117;
MAP={s|s=4i+1, i=0, 1, . . . , 77}U {s|s=4i+3, i=0, 1, . . . , 77}U {s|s=4i+2, i=0, 1, . . . , 2P−
157}; and
for 118≦
P≦
156;
MAP={s|s=4i+1, i=0, 1, . . . , 77}U {s|s=4i+3, i=0, 1, . . . , 77}U {s|s=4i+2, i=0, 1, . . . , 77}U {s|s=4i+4, i=0, 1, . . . , 2P−
235};
wherein “
P”
denotes a number of the original supplemental data packets, and “
s”
denotes a supplemental data segment position with respect to a field synchronizing signal segment within the data field.
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60. A method of demultiplexing an input signal including supplemental data and main data in a VSB receiver, the method comprising the steps of:
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demultiplexing a plurality of enhanced supplemental data segments and a plurality of main data segments multiplexed in a data field, wherein positions of the enhanced supplemental data segments are assigned to every fourth segment starting from at least one predetermined start position within the data field; and
obtaining original supplemental data packets included in the data field from the demultiplexed enhanced supplemental data segments. - View Dependent Claims (61)
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62. A method of demultiplexing an input signal including supplemental data and main data in a VSB receiver, the method comprising the steps of:
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demultiplexing a plurality of enhanced supplemental data segments and a plurality of main data segments multiplexed in a data field, wherein positions of the enhanced supplemental data segments are assigned to every fourth segment starting from a predetermined start position within the data field; and
obtaining original supplemental data packets included in the data field from the demultiplexed enhanced supplemental data segments. - View Dependent Claims (63)
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64. A method of demultiplexing an input signal including supplemental data and main data in a VSB receiver, the method comprising the steps of:
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demultiplexing a plurality of enhanced supplemental data segments and a plurality of main data segments multiplexed in a data field, wherein positions of the enhanced supplemental data segments are assigned to every fourth segment starting from a first predetermined start position within the data field, and to every fourth segment starting from a second predetermined start position within the data field; and
obtaining original supplemental data packets included in the data field from the demultiplexed enhanced supplemental data segments. - View Dependent Claims (65)
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66. A method of demultiplexing an input signal including supplemental data and main data in a VSB receiver, the method comprising the steps of:
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demultiplexing a plurality of enhanced supplemental data segments and a plurality of main data segments multiplexed in a data field, wherein positions of the enhanced supplemental data segments are assigned to every fourth segment starting from a first predetermined start position within the data field, to every fourth segment starting from a second predetermined start position within the data field, and to every fourth segment starting from a third predetermined start position within the data field; and
obtaining original supplemental data packets included in the data field from the demultiplexed enhanced supplemental data segments. - View Dependent Claims (67)
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68. A method of demultiplexing an input signal including supplemental data and main data in a VSB receiver, the method comprising the steps of:
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demultiplexing a plurality of enhanced supplemental data segments and a plurality of main data segments multiplexed in a data field, wherein positions of the enhanced supplemental data segments are assigned to every fourth segment starting from a first predetermined start position within the data field, to every fourth segment starting from a second predetermined start position within the data field, to every fourth segment starting from a third predetermined start position within the data field, and to every fourth segment starting from a fourth predetermined start position within the data field; and
obtaining original supplemental data packets included in the data field from the demultiplexed enhanced supplemental data segments. - View Dependent Claims (69)
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70. A method of demultiplexing an input signal including supplemental data and main data in a VSB receiver, the method comprising the steps of:
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demultiplexing a plurality of enhanced supplemental data segments and a plurality of main data segments multiplexed in a data field; and
obtaining original supplemental data packets included in the data field from the demultiplexed enhanced supplemental data segments, wherein the positions of the plurality of enhanced supplemental data segments in the data field are expressed by the following equations;
for 0≦
P≦
39;
MAP={s|s=4i+1, i=0, 1, . . . , 2P−
1};
for 40≦
P≦
78;
MAP={s|s=4i+1, i=0, 1, . . . , 77}U {s|s=4i+3, i=0, 1, . . . 2P−
79};
for 79≦
P≦
117;
MAP={s|s=4i+1, i=0, 1, . . . , 77}U {s|s=4i+3, i=0, 1, . . . , 77}U {s|s=4i+2, i=0, 1, 2P−
157}; and
for 118≦
P≦
156;
MAP={s|s=4i+1, i=0, 1, . . . , 77}U {s|s=4i+3, i=0, 1, . . . , 77}U {s|s=4i+2, i=0, 1, . . . , 77}U {s|s=4i+4, i=0, 1, . . . , 2P−
235};
wherein “
P”
denotes a number of the original supplemental data packets, and “
s”
denotes a supplemental data segment position with respect to a field synchronizing signal segment within the data field.
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71. A method of multiplexing data in a VSB transmitter, the method comprising the step of:
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multiplexing a first plurality of data segments and a second plurality of data segments in a data field, wherein the positions of the first plurality of data segments in the data field are expressed by the following equations;
for 0≦
P≦
39;
MAP={s|s=4i+1, i=0, 1, . . . , 2P−
1};
for 40≦
P≦
78;
MAP={s|s=4i+1, i=0, 1, . . . , 77}U {s|s=4i+3, i=0, 1, . . . , 2P−
79};
for 79≦
P≦
117;
MAP=s|s=4i+1, i=0, 1 . . . , 77}U {s|s=4i+3, i=0, 1 . . . , 77}U {s|s=4i+2, i=0, 1 . . . , 2P−
157}; and
for 118≦
P≦
156;
MAP={s|s=4i+1, i=0, 1, . . . , 77}U {s|s=4i+3, i=0, 1, . . . , 77}U {s|s=4i+2, i=0, 1, . . . , 77}U {s|s=4i+4, i=0, 1, . . . , 2P−
235};
wherein “
2P”
represents a number of the first plurality of data segments, and “
s”
denotes a data segment position with respect to a field synchronizing signal segment within the data field.
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Specification