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White cane navigational device for the visually impaired
专利权人:
Eric J. Alexander
发明人:
Eric J. Alexander
申请号:
US14931624
公开号:
US09789024B2
申请日:
2015.11.03
申请国别(地区):
US
年份:
2017
代理人:
摘要:
An improved white cane includes an elongate body having a proximal end adapted to be held by or secured to a human user and a distal tip, and a noise generator located proximate the distal tip, the noise generator being configured to generate sound within a range of frequencies audible to humans. The user is able to interpret differences in reflected sound as the white cane is moved about the users surroundings to obtain more information about the surroundings than could be obtained using a normal white cane. Additionally, the information about the surroundings may become available to the user before that information might otherwise have been available to the user using a standard white cane.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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