Vehicle warning sign system
First Claim
Patent Images
1. A warning system for alerting an approaching vehicle of the presence of a stopped or slower first moving vehicle traveling thereahead, said system including:
- at least one alerting sign structure;
a transmitter attached to said first vehicle and arranged to transmit a wireless radio signal;
a radio signal receiver mounted on said sign structure and adapted to receive said transmitted wireless radio signal;
said alerting sign structure including at least one visual indicator coupled to said radio signal receiver for producing a visual signal when said receiver receives said wireless radio signal; and
said sign structure further including an energy source coupled to said visual indicator and to said receiver.
0 Assignments
0 Petitions
Accused Products
Abstract
A vehicle warning sign system for alerting motorists of the existence of a vehicle, such as a school bus, stopped ahead, the system including a transmitter attached to the vehicle for transmitting a wireless signal to a receiver mounted on a sign structure, the sign structure having at least one visual indicator coupled to the receiver for producing a visual signal, the sign structure having an energy source coupled to the visual indicator and the receiver, and the visual indicator being activated when the receiver receives the wireless signal.
23 Citations
5 Claims
-
1. A warning system for alerting an approaching vehicle of the presence of a stopped or slower first moving vehicle traveling thereahead, said system including:
-
at least one alerting sign structure; a transmitter attached to said first vehicle and arranged to transmit a wireless radio signal; a radio signal receiver mounted on said sign structure and adapted to receive said transmitted wireless radio signal; said alerting sign structure including at least one visual indicator coupled to said radio signal receiver for producing a visual signal when said receiver receives said wireless radio signal; and said sign structure further including an energy source coupled to said visual indicator and to said receiver. - View Dependent Claims (2, 3, 4, 5)
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeDonald A. Guthrie
-
Original AssigneeDonald A. Guthrie
-
InventorsGuthrie, Donald A.
-
Primary Examiner(s)Wu, Daniel J.
-
Application NumberUS09/040,785Time in Patent Office776 DaysField of Search340/539, 340/902, 340/904, 340/905, 340/994, 340/906US Class Current340/904CPC Class CodesG08G 1/164 Centralised systems, e.g. e...
