Audible traffic signal for visually impaired persons using multi

Details Audible traffic signal for visually impaired persons using multi Audible traffic signal for visually impaired persons using multi

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.

REFERENCES:
patent: 4253083 (1981-02-01), Imamura
patent: 4590474 (1986-05-01), Patterson et al.
patent: 4812746 (1989-03-01), Dallas, Jr.
patent: 4914435 (1990-04-01), Gould et al.
patent: 4951045 (1990-08-01), Knapp et al.
patent: 5092705 (1992-03-01), Raswant
patent: 5103223 (1992-04-01), Humphrey
patent: 5241307 (1993-08-01), Bidault et al.
patent: 5654705 (1997-08-01), Houten et al.

Affiliated with

Also associated with

Rating

Audible traffic signal for visually impaired persons using multi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Audible traffic signal for visually impaired persons using multi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Audible traffic signal for visually impaired persons using multi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-199942