Data acquisition system using non-linear digitization intervals

Details Data acquisition system using non-linear digitization intervals Data acquisition system using non-linear digitization intervals

1989-04-04

1992-08-11

Hayes, Gail O.

Boots, shoes, and leggings

G06F 1542

Patent

active

051385520

ABSTRACT:
A data acquisition system is described for converting a plurality of analog information signals to a corresponding plurality of digital output signals each (a) having a dynamic range of n bits to match the dynamic range of the corresponding analog information signal, and (b) representative of the corresponding analog information signal during each of a plurality of time intervals. The system simultaneously converts each of the analog signals to an intermediate digital signal during each of the time intervals in accordance with a digitization code of m bits (where m is less than n) such that the digitization intervals of the code increase non-linearly so that the ratio of the noise level of the intermediate digital signal and the digitization interval of the code is substantially constant throughout the dynamic range of the analog signals. The intermediate digital signals are transformed to the corresponding digital output signals.

REFERENCES:
patent: 4163947 (1979-08-01), Weedon
patent: 4569028 (1986-02-01), Dolazza et al.

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