Waveform correction apparatus

Details Waveform correction apparatus Waveform correction apparatus

1996-01-26

1998-09-01

Chin, Stephen

Pulse or digital communications

Pulse code modulation

Differential

375317, 375243, H04B 1406, H04B 1404, H04L 2506

Patent

active

058021086

ABSTRACT:
A waveform correction apparatus is disclosed. The waveform correction apparatus includes a signal generator for generating a signal; a maximal value recorder for recording a maximal value of the signal waveform; a minimal value recorder for recording a minimal value of the signal waveform; a difference value generator for generating a difference value of the maximal value and the minimal value; and a comparative controller for comparing the difference value with a reference value. The comparative controller outputs a corrected waveform when the difference value is larger than the reference value, otherwise it outputs the original waveform generated by the waveform generator. The corrected waveform is formed by shifting up or down the original waveform by a constant value.

REFERENCES:
patent: 4540897 (1985-09-01), Takaoka et al.
patent: 4575683 (1986-03-01), Roberts et al.
patent: 4926442 (1990-05-01), Bukowski et al.
patent: 5210712 (1993-05-01), Saito
patent: 5230060 (1993-07-01), Naitoh

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