Communications: electrical – Pedestrian guidance
Patent
1999-10-12
2000-10-03
Hofsass, Jeffery A.
Communications: electrical
Pedestrian guidance
3406911, 340692, 34082519, 367116, G08G 1095
Patent
active
061279439
ABSTRACT:
An audible traffic signal adding apparatus for visually impaired persons includes two speakers and a control section. The two speakers are disposed at two ends of a crosswalk. The control section navigates a visually impaired person crossing the crosswalk by alternately outputting different sounds as in "back and forth call" operation from the two speakers disposed at the two ends of the crosswalk to the visually impaired person for a period during which crossing is permitted.
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Sawai Hajime
Suzuki Toru
Takahara Shinichi
Takato Jinro
Tauchi Masaki
Hofsass Jeffery A.
Koito Industries Ltd.
Nguyen Phung
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