Interface circuit

Details Interface circuit Interface circuit

1984-03-19

1986-09-16

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307356, 307228, 307475, 307261, 328147, 328150, H03K 3017, H03K 5153

Patent

active

046124632

ABSTRACT:
An interface circuit for connecting a tablet to an analog input unit of a computer, comprises a sawtooth generator operable in synchronism with a preset timing of the computer for generating a sawtooth voltage, and a comparator for comparing the sawtooth voltage with an output voltage from the tablet. The output voltage from the tablet can be converted into an output voltage having a corresponding time duration, which is supplied to the analog input unit.

REFERENCES:
patent: 4379240 (1983-04-01), Mammano

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