Abstract: A laser-based warning system for a vehicle, the system including: a laser device located on an inner face of a ceiling of a vehicle frame; and a controller configured to generate an emergency message and send the message to the laser device, wherein the laser device is configured to receive the emergency message and to shape a laser based on the message to irradiate the laser-based message onto a front, left, right, rear glasses of the vehicle selectively.

Abstract: A laser-based warning system for a vehicle, the system including: a laser device located on an inner face of a ceiling of a vehicle frame; and a controller configured to generate an emergency message and send the message to the laser device, wherein the laser device is configured to receive the emergency message and to shape a laser based on the message to irradiate the laser-based message onto a front, left, right, rear glasses of the vehicle selectively.

Abstract: An input pad (4) is adapted to include a input signal terminal for receiving input signal (A), an enable terminal for receiving power-down signal (P-), and a logic gate (such as a NOR Boolean arithmetic unit) to perform logical arithmetic upon receiving the input signal (A) and the power-down signal (P-) from the input terminal and the enable terminal, respectively. Such input pad (A) is employed in a low-current consuming integrated circuit having a limited number of input pads for increasing the number of available input pads for receiving input signal thus increasing the process speed.