Patent ID: 6055465
Filing Date: 2000-04-25
Classification: B60Q

Abstract:
A hazard display system, comprising:a control unit configured to generate a multiplex control signal;a hazard switch element configured, in response to being switched on, to signal to said control unit to include a flicker synchronizing signal in said multiplex control signal, wherein the period of said flicker synchronizing signal includes an ON state and an OFF state;a first processor configured to process a first set of data to control a first load during normal operation in response to said multiplex control signal and to generate a first drive signal in response to being interrupted by said flicker synchronizing signal when said flicker synchronizing signal changes to said ON state;a second processor configured to process a second set of data to control a second load during normal operation in response to said multiplex control signal and to generate a second drive signal in response to being interrupted by said flicker synchronizing signal when said flicker synchronizing signal changes to said ON state;a first display element drivable by said first drive signal and configured to display a front flickering hazard signal, wherein the period of said front flickering hazard signal has an ON state and an OFF state; anda second display element drivable by said second drive signal and configured to display a rear flickering hazard output signal, wherein the period of said rear flickering hazard output signal has an ON state and an OFF state, wherein said front flickering hazard signal and said rear flickering hazard signal are in said ON state at least twice during one period of said flicker synchronizing signal in order to reduce the number of times said first processor and said second processor are interrupted by said flicker synchronizing signal.