Non-linear analogue-digital converter

Details Non-linear analogue-digital converter Non-linear analogue-digital converter

1975-01-28

1977-05-10

Sloyan, Thomas J.

Communications: electrical

Audible indication

Percussion-type sound producer

235197, 340347M, H03K 1302

Patent

active

040231593

ABSTRACT:
A non-linear analogue-to-digital converter having analogue-to-digital conversion relation curves on the basis of which the conversion is carried out and which curves can be freely exchanged. The converter comprises a gate pulse generator circuit for producing gate pulses of a predetermined duration, an oscillator for producing a signal of a variable frequency in response to a signal representing an input analogue quantity in which an element for varying analogue-frequency relation is incorporated, a counter for counting the signal from the oscillator during the duration of the gate pulse signal, and an arrangement for controlling the converter in accordance with pre-determined patterns in dependence on the count value of the counter.

REFERENCES:
patent: 3475740 (1969-10-01), Ehrlich et al.
patent: 3568181 (1971-03-01), Weaver
patent: 3710376 (1973-01-01), Fluegel
patent: 3733474 (1973-05-01), Edwards et al.

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