Digital correction circuit for data converters

Details Digital correction circuit for data converters Digital correction circuit for data converters

1988-07-29

1990-12-11

Shoop, Jr., William M.

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

341118, H03M 302, H03M 106

Patent

active

049774034

ABSTRACT:
A digital correction circuit for use in signal converters is disclosed. The invention includes a subtractor (32) for subtracting a digital correction signal from an input signal, a digital filter (34) for filtering the output of the subtractor to provide a digital output signal and memory (39) for providing said correction signal. In a specific embodiment of the invention, an improved analog-to-digital converter is disclosed including an improved digital-to-analog converter with digital correction circuitry.

REFERENCES:
patent: 4021799 (1977-05-01), Hinoshita et al.
patent: 4059800 (1977-11-01), Jones, Jr.
patent: 4308524 (1981-12-01), Harrison et al.
patent: 4549305 (1985-10-01), Fushikida
Candy, "A Use of Limit Cycle Oscillations to Obtain Robust Analog-to-Digital Converters", IEE Transactions on Communications, vol. COM-22, No. 3, Mar. 1974, pp. 298-305.

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