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US 4,065,647 AGranted
Automatic acoustical testing system
OwnerGeorge Joseph Frye, Leonardus Johannes Geerlinginventors
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Abstract
An automatic acoustical testing system is described wherein a digital computer controller utilizing hard-wired program memory is used to control testing of acoustical devices, such tests being carried out by driving a device to be tested with audio sound generator means and processing the output of the device by circuit means that are under the control of the computer resulting in digital readouts of the device's output amplitude and purity as well as providing graphical representations thereof.
Claims8
An automatic acoustical testing system, comprising in combination:
- oscillator means for generating a selected signal frequency;
- amplifier means for receiving said selected signal frequency and amplifying same to provide an amplified driving signal;
- means coupling said driving signal to an acoustical device to be tested;
- means receiving an output from the device to be tested and digitially processing said output;
- distortion analyzer circuit means receiving an output signal from said receiving and digitally processing means and further processing said output signal;
- digital computer processor means interfacially connected to said oscillator means, amplifier means, receiving and digitally processing means and distortion analyzer circuit means for controlling and processing analog and digital signals provided to and derived from said oscillator means, amplifier means, receiving and digitally processing means and distortion analyzer circuit means;
- and
- readout means interfacially connected to said digital computer processor means for providing readout of said analog and digital signals.
5 more elements
Dependencies are inferred from the claim text.