Analog/digital and digital/analog converting apparatus

Details Analog/digital and digital/analog converting apparatus Analog/digital and digital/analog converting apparatus

1996-12-19

1998-07-07

Gaffin, Jeffrey A.

Coded data generation or conversion

Analog to or from digital conversion

Nonlinear

341118, H03M 100

Patent

active

057775680

ABSTRACT:
An analog/digital and digital/analog converting apparatus includes an analog/digital converter circuit for converting an input analog signal into a digital signal, a digital/analog converter circuit for converting the digital signal converted by the analog/digital converter circuit into an analog signal to obtain an output signal, a level-control variable resistor for controlling a level of a signal to be supplied to the analog/digital converter circuit, and an adjustment circuit for changing a pulse height value or a current value of the output signal so that the levels of the input signal and the output signal are the same by applying a predetermined DC voltage based on the change of the level-control variable resistor and for supplying a control signal used for controlling the level of the output signal to the digital/analog converter circuit.

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