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Apparatus and method as an orientation aid to the blind and those with impaired vision using the ultrasound pulse echo method
Apparatus and method as an orientation aid to the blind and those with impaired vision using the ultrasound pulse echo method
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机译:使用超声脉冲回波法作为盲人和视力障碍者的定向辅助设备和方法
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摘要
The invention describes an apparatus which provides an orientation aid to the blind and those with impaired vision. A miniaturised ultrasound pulse echo time evaluation unit is placed on the cane of the blind person such that the unit monitors the upper region. The invention describes some technical novelties in this connection.
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