Autocalibration of compressed A/D converter

Details Autocalibration of compressed A/D converter Autocalibration of compressed A/D converter

1979-02-13

1982-07-06

Sloyan, Thomas J.

Communications: electrical

Audible indication

Percussion-type sound producer

340347AD, 340347M, 364722, 367 66, H03K 1302

Patent

active

043385893

ABSTRACT:
An analog-to-digital converter system is disclosed in which the amplitude of the signal is compressed by means including a logging means prior to an analog-to-digital converter. Reference signals of known values are applied to the logging means and their values at the output of the converter are used to determine a linearity factor which is applied to a multiplier coupled to the output of the converter. The amplitude of one of the reference signals at the output of the multiplier is compared with what it should be and the difference is added by an adder at the output of the multiplier.

REFERENCES:
The Engineering Staff of Analog Devices, Inc., Analog-Digital Conversion Handbook, 1972, pp. II-158, 159.
Wells, College Algebra, D. C. Heath & Co., 1899, pp. 352-359.

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