SYSTEMS TECHNOLOGIES FOR SILICON AUDITORY MODELS

被引:14
作者
LAZZARO, J
WAWRZYNEK, J
KRAMER, A
机构
[1] University of California, Berkeley
基金
美国国家科学基金会;
关键词
D O I
10.1109/40.285219
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
Our low-power analog integrated circuit implements a biologically inspired algorithm for the spectral analysis of sound. The chip features an efficient interface to digital systems; preserving analog processing's low-power, high-density advantages requires careful attention to interface issues. To send the spectral representation off chip, we generate a sparse coding of the output spectrum, and communicate the code as an asynchronous stream of events. We store parameters for the spectral analysis algorithm as charge on floating nodes, and support the modification of these parameters via Fowler-Nordheim tunneling, under the control of a digital interface. A prototype system we have developed uses this chip as a preprocessor.
引用
收藏
页码:7 / 15
页数:9
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