Analog to digital converter system

Details Analog to digital converter system Analog to digital converter system

1992-06-11

1994-04-19

Hoff, Marc S.

Coded data generation or conversion

Analog to or from digital conversion

Increasing converter resolution

341166, H03M 120

Patent

active

053050053

ABSTRACT:
An A/D converter system has an A/D converter element (10) which provides a first predetermined number of digital output bits for each input analog signal. An addition device (12,70) adds linear slope potential to the input analog signal. A calculator (14) provides an average of a plurality of digital output signals of the A/D converter element so that the average has larger number of bits than the first predetermined number. The addition device is implemented by a time constant circuit (70) which functions as an integral circuit for an input analog signal, and functions as a differential circuit for a slope potential.

REFERENCES:
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patent: 4700173 (1987-10-01), Araki et al.
patent: 4751496 (1988-06-01), Araki et al.
patent: 4764748 (1988-08-01), Geen et al.
patent: 4812846 (1989-03-01), Noro
patent: 5073778 (1991-12-01), Ueki et al.
patent: 5075678 (1991-12-01), Ohlsson et al.

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