Abstract: A window system for an enclosure subjected to a change in air pressure, the enclosure having a window having an air-filled cavity, the system including a first path configured to allow air within the cavity of the window to vent out of the cavity, a second path configured to allow air to flow into the cavity, and a drying agent disposed within the second path, where moisture in the air entering the window cavity through the second path is reduced by the drying agent.

Abstract: A method, system and controller for controlling power supplied to a heating device of a window on a vehicle, comprising receiving information indicative of at least one parameter associated with operation of the vehicle, generating a power signal at least in part on a basis of the information indicative of the at least one parameter and stored control logic, the power signal being indicative of a power modulation level for power to be supplied to the heating device and transmitting the power signal to a power regulator for causing power to be supplied to the heating device in accordance with the power modulation level.