Department of Electronic and Systems Engineering , IISc
IEEE CAS BANGALORE CHAPTER IS PROUD TO ORGANIZE A TALK ON COMPUTING WITH OSCILLATORS
Title : COMPUTING WITH OSCILLATORS
Speaker : PROFESSOR JAIJEET ROYCHOWDHURY, UNIVERSITY OF CALIFORNIA – BERKELEY
Date : March 6th, 2019 (Wednesday)
Time : 03:00 PM – 04:00 PM
Venue : DESE AUDITORIUM, IISc
In the 1950s, Eiichi Goto and John von Neumann showed how Boolean computation could be performed if logic states are encoded in the phase of oscillatory signals. However, the AC-pumped circuit realizations they proposed were not well suited for scaling and miniaturization, hence their scheme could not compete with the level-based logic now ubiquitous in IC implementations. We show how DC-powered self-sustaining nonlinear oscillators of practically any type can function as phase-logic latches. Phase-based Boolean computation therefore becomes possible using a wide variety of natural and engineered oscillators (including CMOS realizations) as substrates. We indicate how phase-encoded logic has inherent noise immunity advantages over level-based logic, and can potentially perform logical operations in a single cycle with low energy consumption. We also show how self-sustaining oscillator networks can be used to implement Ising machines, and outline their considerable promise for solving hard (NP-complete) problems rapidly in hardware.