A/D conversion apparatus having high level reception enhancement

Details A/D conversion apparatus having high level reception enhancement A/D conversion apparatus having high level reception enhancement

1998-01-29

2000-08-08

Young, Brian

Coded data generation or conversion

Analog to or from digital conversion

Nonlinear

341118, H03M 162, H03M 106

Patent

active

06100832&

ABSTRACT:
A plurality of amplifiers having different amplification factors are provided and a received signals and amplified output signal are all sampled by A/D converters. A selector selects, from the sampled signal, a signal from which accuracy can be attained exceedingly and is not saturated upon sampling, so that there can be provided an A/D conversion apparatus which does not require AGC control and conversion calculation of data and can obtain desired accuracy. Selection logic can use comparison of maximum values and logical sums of absolute values of the sampled values, levels which are not amplified or the like.

REFERENCES:
patent: 4823129 (1989-04-01), Nelson
patent: 5202686 (1993-04-01), Rapp et al.
patent: 5250948 (1993-10-01), Berstein et al.
patent: 5805090 (1998-09-01), Sato

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