发明名称 Guiding device for visually handicapped person
摘要 A guide device for visually handicapped person which has a portable unit and a position indicator unit. The portable unit is carried by the visually handicapped person and includes a radio frequency signal oscillator. The position indicator unit is disposed to a desired place and includes a radio frequency signal receiver and a loud speaker.
申请公布号 US5032836(A) 申请公布日期 1991.07.16
申请号 US19900541180 申请日期 1990.06.18
申请人 NAMCO, LTD. 发明人 ONO, YUJIRO;NAKATOME, SYUICHI;KUMADA, YOSHIHIDE;SUZUKI, KENJI;KAWAMURA, JUNICHI;OTA, KATUNORI;TOMIYAMA, SATORU
分类号 A61F9/08;A61H3/06;G09B21/00 主分类号 A61F9/08
代理机构 代理人
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