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We present an implantable neural recording IC with a unique scheme for detecting spike signals and preserving their waveform in real-time. Each channel in the proposed device has a delta modulator that stores a series of consecutive subtracted signal values. The delta modulation doesn't only allow low-voltage operation by reducing the signal dynamic range, but also detects only the spike signal by...
A neural recording IC with a new spike detection scheme is proposed to minimize power dissipation while preserving the waveform information of the detected spikes. A delta modulator is employed in the recording IC to reduce signal dynamic range and enable low-voltage operation. A series of output values from the delta modulator are stored in a small amount of analog memory to extract two key features...
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