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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...
We propose a power management method using a digital voice activity detection (VAD) module for intelligent ubiquitous sensor systems. When this VAD module detects a speech signal, a main signal processing circuit is connected to a power source. When no speech signal is detected, most circuits except VAD are blocked off, thereby reducing stand-by power for the specialized sensor nodes used for speech...
This paper compares readout powers and operating frequencies among dual-port SRAMs: an 8T SRAM, 10T single-end SRAM, and 10T differential SRAM. The conventional 8T SRAM has the least transistor count, and is the most area efficient. However, the readout power becomes large and the cycle time increases due to peripheral circuits. The 10T single-end SRAM is our proposed SRAM, in which a dedicated inverter...
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