Anre F Weiss

US Patent:

20030048201, Mar 13, 2003

Filed:

Jan 3, 2002

Appl. No.:

09/936801

Inventors:

Anre Weiss - Sonoma CA, US
Reet Weiss - Sonoma CA, US

International Classification:

G08G001/096

US Classification:

340/929000, 340/907000, 340/925000

Abstract:

A method and apparatus to alert motorists of an impending change of a traffic signal includes a traffic signal assembly () including individual red, yellow and green signal lights, with control circuitry () to sequentially illuminate the green signal light as a constant green for a first portion Tof time interval Tfollowed by a flashing green for a second portion Tof interval Tafter which the yellow signal illuminates for time Tthe red signal for a time Tand the cycle repeats. Thus, instead of the green light remaining constantly illuminated during its entire period of timed operation, the modified circuitry causes the green light to flash for the last portion of its operation, thereby indicating to the motorist that the signal is about to change to yellow.