Non-linear digital to analog conversion by intermediate conversi

Details Non-linear digital to analog conversion by intermediate conversi Non-linear digital to analog conversion by intermediate conversi

1976-10-07

1979-08-21

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

334 11, H03K 1320

Patent

active

041655079

ABSTRACT:
A circuit network for the non-linear digital-to-analog conversion of a periodic pulse signal having a linear average value which depends on a digital value into a direct current signal, wherein said network has different charge and discharge time constants for the pulse signals and the smoothing filter, so that a non-linear relation is obtained between the value of the input signal and the amplitude of the output signal of the filter circuit. The input network includes in series a resistor and a capacitor, the resistor of which is shunted at least partially by a diode.

REFERENCES:
patent: 3412267 (1968-11-01), Bohle
patent: 3418490 (1968-12-01), Hofferber
patent: 3581116 (1971-05-01), Leostic
patent: 3918046 (1975-11-01), Rivers

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