Apparatus and method for interfacing a transducer

Details Apparatus and method for interfacing a transducer Apparatus and method for interfacing a transducer

1985-09-11

1987-06-23

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

340347NT, H03M 156

Patent

active

046756493

ABSTRACT:
An analog-to-digital conversion technique utilizes an oscillator which provides a primary oscillating signal that drives a counter and that generates a derived signal having a frequency less than the primary signal. The derived signal is integrated for use in comparing against the threshold voltage defining the analog signal to be converted. The comparison of the integrated and the threshold signals provides a pulse width modulated signal which is related to the primary signal. The pulse width modulated signal gates the counter for generating a count at the rate established by the primary signal. This output can be communicated to a microcomputer or other device.

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Bares, "IBM Technical Disclosure Bulletin", vol. 10, No. 9, Feb. 1968, pp. 1372-1373.

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