2010 · 64 citations · 9 references
EngineeringComputer EngineeringElectrical EngineeringEmbedded SystemsMicroelectronicsSystem-on-chip DesignElectroencephalogram Signal ProcessingElectroencephalographyEmbedded Processor IntegrationEnergy-efficient Embedded SystemsHardware AccelerationNeural Signal ProcessingEeg Signal ProcessingEeg-based Seizure DetectionElectronic Circuit DesignEpileptic Seizure DetectionLow-power Embedded SystemsProcessor ArchitectureSeizure DetectionSystem-on-chip Architecture
A medical system-on-chip (SoC) that integrates an ARM Cortex-M3 processor is presented. Ultra-low power operation is achieved via 0.5-1.0 V operation, a 28 fW/bit fully differential subthreshold 6T SRAM, a 90%-efficient DC-DC converter, and a 100-nJ fast Fourier transform (FFT) accelerator to reduce processor workload. Using a combination of novel circuit design, system architecture, and SoC implementation, the first sub-microwatt per channel electroencephalograph (EEG) seizure detection is demonstrated.
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Ultra-low power digital subthreshold logic circuits
H. Soeleman, Kaushik Roy · 1999 · 188 citations · Full text
Engineering, Computer Engineering, Electrical Engineering +16