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1 out of 1 Years Active: 2011-2020
Title: Drago Strle: Innovator in Piezoelectric Technology
Introduction
Drago Strle is a notable inventor based in Ljubljana, Slovenia. He has made significant contributions to the field of piezoelectric technology, holding three patents that showcase his innovative approach to sound generation and audio signal processing.
Latest Patents
One of Drago Strle's latest patents is a method for operating a piezoelectric speaker. This method involves generating sound waves in both the audible wavelength spectrum and the ultrasonic range. It includes charging a piezo actuator with electrical energy and discharging it while determining the present electrical voltage of the actuator. The method also compares future input voltage with the present voltage to derive a future differential voltage. Additionally, it allows for returning part of the energy needed to charge the actuator back to the energy unit during discharging.
Another significant patent is a device for audio signal processing for a piezoelectric speaker. This device includes a signal input for digital audio signals and a digital correction unit to address speaker nonlinearity. It features a digital PWM generator that converts corrected signals into pulse-width modulated switch signals. The power stage is controllable by the switch signal, allowing the speaker to be charged with a voltage for membrane deflection. A closed-loop control circuit feeds back the voltage as a feedback signal, which includes a first signal noise in the audible frequency range. This circuit also incorporates a noise shaping unit that shifts noise energy outside the audible frequency range.
Career Highlights
Drago Strle has worked with several prominent companies, including Usound GmbH and Continental Automotive GmbH. His experience in these organizations has contributed to his expertise in audio technology and innovation.
Collaborations
Drago has collaborated with notable professionals in his field, including Andrea Rusconi Clerici Beltrami and Ferruccio Bottoni. These collaborations have further enriched his work and expanded his impact on the industry.
Conclusion
Drago Strle is a distinguished inventor whose work in piezoelectric technology has led to innovative methods and devices for sound generation and audio processing. His contributions continue to influence the field and inspire future advancements.
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