Integrating analog-to-digital converter

Communications: electrical – Audible indication – Percussion-type sound producer

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340347M, 324 99D, H03K 1320

Patent

active

042544068

ABSTRACT:
An integrating analog-to-digital converter particularly adapted to measure inertial instrument outputs for strap-down navigation. In the converter, an input signal is summed with a number of precisely quantized voltage pulses and is integrated. An error signal at the output of the integrator controls the rebalance duty cycle of the converter. Counting the net rebalance quanta over an interval results in an output count which is proportional to the input signal voltage.

REFERENCES:
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patent: 3473053 (1969-10-01), Kardash
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patent: 3942172 (1976-03-01), Tucker
patent: 3955191 (1976-05-01), Lambourn
patent: 4005284 (1977-01-01), Rhodes
Hnatek, A User's Handbook of D/A and A/D Converters, J. Wiley & Sons, 1976, pp. 255-262.
Hoeschele, Analog-to-Digital/Digital-to-Analog Conversion Techniques, John Wiley & Sons, Inc., 8/1968, pp. 356-358, 372, 373.
Millman et al., Pulse and Digital Circuits, McGraw-Hill Book Co., 1956, pp. 140-143, 323-327, 400-405.
Hurley, Transistor Logic Circuits, John Wiley & Sons, Inc., 1961, pp. 252-259.

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