| 摘要 |
Multilevel baseband signals are applied to a full-wave rectifying section which produces first and second outputs. These outputs are applied to an analog-to-digital converting means which produces a plurality of recovered binary digital signals and an error signal. A controller is supplied with at least one recovered binary digital signal and the error signal, and produces two control signals which are fed to the full-wave rectifying section to compensate (a) first DC-drifts superimposed on the multilevel baseband signal and (b) second DC-drifts generated within the full-wave rectifying section itself.
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