System and method for soft slicing

Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train

Reexamination Certificate

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Details

C370S902000, C370S339000, C370S442000, C375S261000, C375S298000, C375S316000, C455S060000, C714S786000, C714S794000, C714S795000

Reexamination Certificate

active

07023931

ABSTRACT:
Methods and systems for performing iterative soft slicing methods are disclosed. A data signal is received and processed into individual data tones. A noise estimator provides noise estimates for each data tone. A beamformer utilizes the noise estimates to provide first and second components of a constellation point estimate. A ratio of the first and second components corresponds to the constellation point estimate. A soft slicer uses outputs from the beamformer and noise estimator to determine weighted constellation points without dividing the first component by the second component.

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patent: 6587451 (2003-07-01), Kwon et al.
patent: 1 304 812 (2003-04-01), None

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