Method for converting A/D, and an A/D converting apparatus

Details Method for converting A/D, and an A/D converting apparatus Method for converting A/D, and an A/D converting apparatus

2006-09-12

2006-09-12

Jeanglaude, Jean Bruner (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S120000

Reexamination Certificate

active

07106236

ABSTRACT:
An analog-to-digital converting method for converting an analog signal into a digital signal is provided, wherein the analog-to-digital converting method includes a measuring step of measuring a frequency characteristic of each of analog-to-digital converters in advance, a sampling step of sampling the analog signal, a Fourier transformation step of performing Fourier transformation on the data sampled by the plurality of analog-to-digital converters and generating a plurality of frequency domain signals, a correcting step of converting each of the frequency domain signals into a signal to be acquired in case that the frequency characteristic of corresponding analog-to-digital converter is ideal, by multiplying each of the frequency domain signals by a correction coefficient determined on the basis of the frequency characteristics of all the analog-to-digital converters, and a synthesizing step of synthesizing each of the frequency domain signals acquired at the correcting step and generating a frequency spectrum of the digital signal.

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