Analog-to-digital conversion method and device

Details Analog-to-digital conversion method and device Analog-to-digital conversion method and device

2005-02-01

2005-02-01

Jeanglaude, Jean Bruner (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S129000, C341S163000

Reexamination Certificate

active

06850178

ABSTRACT:
An analog-to-digital conversion device is provided that uses pulse delay circuits to convert an input voltage into numerical data and offers a high resolution in analog-to-digital conversion or a high analog-to-digital conversion rate. The analog-to-digital conversion device includes an analog-to-digital conversion unit having a pulse delay circuit composed of a plurality of delay units. The delay units are driven with a voltage produced by amplifying or shifting an input voltage. The number of delay units through which a pulse signal has passed during a predetermined sampling cycle is adopted as a digitized value of the input voltage. Herein, delay units constituting another pulse delay circuit are driven with a voltage produced by inversely amplifying or shifting the input voltage. Every time the number of delay units through which a pulse signal has passed within the pulse delay circuit reaches a predetermined value determined with a set value, a sampling signal is transferred to the analog-to-digital conversion unit.

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