Self-canceling turn signal

Details Self-canceling turn signal Self-canceling turn signal

2006-01-03

2006-01-03

Wu, Daniel (Department: 2632)

Communications: electrical

Land vehicle alarms or indicators

External signal light system

C340S477000, C362S498000, C200S061300, C701S036000

Reexamination Certificate

active

06982638

ABSTRACT:
A self-canceling turn signal includes an inner wheel rotating at an inner velocity and an outer wheel rotating at an outer velocity. An inner rotational velocity of the inner wheel and an outer rotational velocity of the outer wheel may be measured and compared, and a turn signal may be responsive to a differential signal substantially proportional to the difference between the inner and the outer rotational velocities. The turn signal may signal a turn while the differential signal is greater than a predetermined differential signal.

REFERENCES:
patent: 4030066 (1977-06-01), White
patent: 4213116 (1980-07-01), Holtzman et al.
patent: 4358751 (1982-11-01), Roudebush, Jr.
patent: 5528218 (1996-06-01), Rigsby
patent: 6020813 (2000-02-01), Harris et al.
patent: 6204759 (2001-03-01), Jahnke
patent: 6876300 (2005-04-01), Ponziani

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