Ioannis Savidis

Title: Innovations of Ioannis Savidis

Introduction

Ioannis Savidis is a prominent inventor based in Wallingford, PA (US), known for his significant contributions to the field of integrated circuit security and power management. With a total of 13 patents to his name, Savidis has made remarkable advancements that enhance the functionality and security of electronic systems.

Latest Patents

One of his latest patents is titled "Enhanced Circuity Security Through Hidden State Transitions." This invention presents a state machine system on a chip that utilizes hidden state transitions to create integrated circuit knowledge not available in a logical netlist. It introduces temporal key dependencies to increase the difficulty of executing SAT attacks. The change in the state space of a circuit over time is leveraged to enhance circuit security. The use of hidden transitions that are frequency-dependent, state-dependent keys, and temporally dependent transition keys serves as innovative methods to bolster security against SAT-based attacks.

Another notable patent is "On-Chip Voltage Assignment Through Particle Swarm Optimization." This invention outlines an on-chip voltage delivery method for systems with multiple processor cores operating at various voltage levels. It employs distributed on-chip DC-DC converters as voltage regulators to deliver point-of-load current to different units of a processor core operating at the same voltage level. The system includes distributed timing sensors calibrated to generate digitized clock edge locations. A power management unit processes input from these timing sensors through a particle swarm optimizer, generating digitized voltage identification codes as references for the distributed voltage regulators. This innovative approach allows for run-time voltage assignment, effectively mitigating the effects of transistor aging, process variations, temperature fluctuations, and power supply noise.

Career Highlights

Ioannis Savidis is affiliated with Drexel University, where he continues to contribute to research and development in his field. His work has garnered attention for its practical applications in enhancing the security and efficiency of electronic systems.

Collaborations

Savidis collaborates with notable colleagues, including Kyle Juretus and Divya Pathak, who share his commitment to advancing technology and innovation.

Conclusion

Ioannis Savidis stands out as a leading inventor whose work in integrated circuit security and power management has made a significant impact on the field. His innovative patents reflect a deep understanding of technology and a commitment to enhancing electronic systems.