Centering multi-level data

Details Centering multi-level data Centering multi-level data

H - Electricity

04

L

H04L 25/06 (2006.01) H04L 7/00 (2006.01) H04L 27/14 (2006.01)

Patent

CA 2055470

2055470 9014727 PCTABS00002 There is provided a scheme for centering data prior to detection. It comprises: determining carrier frequency error, and pre-adjusting the data detection process to compensate for that error throughout the ensuing data detection. This scheme for reliable multilevel data detection further comprises: upon detection of carrier (C2, R5, G1) presence, determining carrier frequency error, gating a voltage associated with the frequency error (R1, R3, C1) to the differential amplification process to establish common mode rejection and compensating for that error throughout the ensuing multi-level data detection, and then analog-to-digital conversion of the differentially amplified multi-level data. A scheme for computationally centering the subsequent data detected (C3, R4) to compensate for the error is also provided.

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