Publication: A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2008/12/01
Vol. J91-A
No. 12
pp. 1174-1180
Type of Manuscript: Special Section PAPER (Special Section on New Developments on Nonlinear Acoustics)
Category:
Keyword:
visually impaired persons,
walking guide,
audible traffic signal,
parametric speaker,
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