Data conversion and processing system

Details Data conversion and processing system Data conversion and processing system

1996-10-25

1998-08-18

Hoff, Marc S.

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

341118, H03M 302

Patent

active

057963592

ABSTRACT:
A data conversion and processing system (10) includes a comparator (12), data modulation circuitry (24), monitoring circuitry (25) and a feedback filter (30) to provide both data conversion and data processing functions. The comparator (12) receives an analog input signal (22) and an analog feedback signal (32) and produces a comparator output (20). When the analog input signal (22) exceeds the analog feedback signal (32), the comparator (12) produces a logic one and, when not, a logic zero. The data modulation circuitry (24) receives the comparator output (20) and produces a digital feedback signal (28) based upon the comparator output (20). A data processor (102) performs functions of the data modulation circuitry (24) and the monitoring circuitry (25) as well as additional data processing functions. The data processor (102) produces the digital feedback signal (28) via clock generation circuitry (106). Alternatively, a data processor (160) produces transitions of the digital feedback signal (28) via flip-flop decode circuitry (154) and an output flip-flop (156).

REFERENCES:
patent: 4107669 (1978-08-01), Tewksbury
patent: 4860012 (1989-08-01), Rich et al.
patent: 4937577 (1990-06-01), Rich et al.
patent: 5276764 (1994-01-01), Dent
patent: 5311181 (1994-05-01), Ferguson, Jr. et al.
patent: 5548286 (1996-08-01), Craven

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