Patent ID: 6175305
Filing Date: 2001-01-16
Classification: B60Q

Abstract:
A stoplamp modulator module electronic device for use in a vehicle to reduce rear-end collisions, the electronic device is adapted for attachment to and for lighting one or more lamps of a standard center high-mount stoplamp installed in the rear of the vehicle, the electronic device is also adapted for connection to a vehicle's speed pulser and brake light switch, the electronic device comprising:a vehicle speed pulser interface and pulse counter connected to the vehicle's speed pulser for receiving and counting pulse inputs, the pulse inputs giving an indication of the vehicle's velocity;compare logic means connected to said pulse counter for determining if the vehicle's velocity is above or below a predetermined velocity;stoplamp control logic means connected to said compare logic means and the lamp of the stoplamp for controlling a complex periodic waveform to the lamp;an oscillator and frequency counter connected to said compare logic means and said stoplamp control logic means for providing a selected complex periodic waveform to the lamp of the stoplamp; andlight adjustment means connected to said oscillator and frequency counter and to said stoplamp control logic means for adjusting the complex periodic waveform to the lamp of the stoplamp, whereby a dimming, brightening, flickering or warble, and other light adjustments are made to the lamp when the vehicle's velocity is below the predetermined speed for warning trailing vehicles.