A biologically inspired tactile sensor array utilizing phase-based computation
Cassidy, A.
Ekanayake, V.
Dept. of Electr. & Comput. Eng., Johns Hopkins Univ., Baltimore, MD;
This paper appears in: Biomedical Circuits and Systems Conference, 2006. BioCAS 2006. IEEE
Publication Date: Nov. 29 2006-Dec. 1 2006
On page(s): 45-48
Location: London,
ISBN: 978-1-4244-0436-0
INSPEC Accession Number: 10146236
Digital Object Identifier: 10.1109/BIOCAS.2006.4600304
Current Version Published: 2008-08-15
Abstract
We propose a biologically inspired tactile sensor array based on neural spike processing. Asynchronous data processing is integrated on-chip with the sensor array and converts the high-bandwidth raw input data into higher-level information with lower bandwidth requirements. Using phase-based computation primitives, as opposed to traditional rate-based neural spike codes, the array can compute the point-of-contact, force magnitude, force direction, and the presence or absence of slips, all in real time. Simulations demonstrate a reduction in the number of computations by up to three orders of a magnitude over a comparable synchronous approach.
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