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GLVLSI
2002
IEEE
13 years 9 months ago
2002
IEEE
We present a low-power sine-output Direct Digital Frequency Synthesizer (DDFS) realized in 0.18 µm CMOS that achieves 60 dBc spectral purity from DC to the Nyquist frequency. No ...
BC
2002
13 years 4 months ago
2002
The extraction of stereoscopic depth from retinal disparity, and motion direction from two-frame kinematograms, requires the solution of a correspondence problem. In previous psych...
BC
2002
13 years 4 months ago
2002
We consider a spatial neuron model in which the membrane potential satisfies a linear cable equation with an input current which is a dynamical random process of the Ornstein
BC
2002
13 years 4 months ago
2002
Spike-timing-dependent plasticity (STDP) strengthens synapses that are activated immediately before a postsynaptic spike, and weakens those that are activated after a spike. To pre...
BC
2002
13 years 4 months ago
2002
Association of a presynaptic spike with a postsynaptic spike can lead to changes in synaptic efficacy that are highly dependent on the relative timing of the preand postsynaptic sp...