DIVERSITY RECEIVER FOR PROCESSING VSB SIGNAL
First Claim
1. A diversity receiver configured to receive VSB (vestigial sideband) signals, comprising:
- a first modulator configured to receive a first VSB signal and modulate the first VSB signal to first VSB data;
a second modulator configured to receive a second VSB signal and modulate the second VSB signal to second VSB data;
a path aligner configured to detect starting points of the first VSB data and the second VSB data and synchronizing the first VSB data and the second VSB data; and
a dual channel equalizer/decoder configured to repeatedly perform an equalization process for a selected section, the equalization process including filtering each of the first and second VSB data synchronized in a feed-forward manner, mixing the first and second filtered VSB data, and filtering the mixed result in a decision feedback manner.
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Abstract
A diversity receiver configured to receive digital signals, including a first modulator configured to receive a first signal and modulate the first signal to first data, a second modulator configured to receive a second signal and modulate the second signal to second data, a path aligner configured to detect starting points of the first data and the second data and generate a control signal for synchronizing the first data and the second data, and an equalizer/decoder configured to synchronize the first and second data and to generate a signal to noise ratio and an equalizer output by a recursive equalization operation for the diversity signals thus synchronized.
6 Citations
20 Claims
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1. A diversity receiver configured to receive VSB (vestigial sideband) signals, comprising:
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a first modulator configured to receive a first VSB signal and modulate the first VSB signal to first VSB data; a second modulator configured to receive a second VSB signal and modulate the second VSB signal to second VSB data; a path aligner configured to detect starting points of the first VSB data and the second VSB data and synchronizing the first VSB data and the second VSB data; and a dual channel equalizer/decoder configured to repeatedly perform an equalization process for a selected section, the equalization process including filtering each of the first and second VSB data synchronized in a feed-forward manner, mixing the first and second filtered VSB data, and filtering the mixed result in a decision feedback manner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A diversity receiver configured to receive VSB (vestigial sideband) signals, comprising:
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a first equalizer/decoder configured to synchronize first diversity signals and generate a first signal to noise ratio and a first equalizer output by a recursive equalization operation in a section unit for the first diversity signals thus synchronized; and a second equalizer/decoder configured to synchronize second diversity signals, generate a second signal to noise ratio and a second equalizer output by a recursive equalization operation in a section unit for the second diversity signals thus synchronized, and mix the first equalizer output and the second equalizer output by referring to the first signal to noise ratio and the second signal to noise ratio, wherein the first equalizer/decoder and the second equalizer/decoder are formed on different chips. - View Dependent Claims (15, 16, 17, 18)
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19. A diversity receiver configured to receive digital signals, comprising:
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a first modulator configured to receive a first signal and modulate the first signal to first data; a second modulator configured to receive a second signal and modulate the second signal to second data; a path aligner configured to detect starting points of the first data and the second data and generate a control signal for synchronizing the first data and the second data; and an equalizer/decoder configured to synchronize the first and second data and to generate a signal to noise ratio and an equalizer output by a recursive equalization operation for the diversity signals thus synchronized. - View Dependent Claims (20)
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Specification