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We propose a quad-core mixed integer quadric programming (MIQP) solver processor. The MIQP solver is applicable to hybrid control systems including real-time control robotics. Using multi-core architecture, fixed-point calculations, and branch-and-bound method with high-dispersion performance while processing a 50-variable problem, our design achieves 34.7-mW operation at a frequency of 52 MHz in...
We propose a microphone array network that realizes ubiquitous sound acquisition. Nodes with 16 microphones are connected to form a large sound acquisition system that carries out voice activity detection (VAD), sound source localization and sound source separation. The three operations are distributed among nodes using network. Because the VAD is implemented to manage power consumption, the system...
This paper describes parallel processor architecture for a mixed integer linear programming (MILP) solver to realize motion planning and hybrid system control in robot applications. It features pipeline architecture with an MILP-specific configuration and two-port SRAM. Based on the architecture, both FPGA and VLSI implementations have been done to solve sample problems including 16 variables. The...
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