Abstract: An electronic device such as a laptop computer may have an upper housing and a lower housing. The upper housing may be coupled to the lower housing by a hinge. The upper housing may be rotatable relative to the lower housing between an open position and a closed position. The lower housing may have an upper metal wall, a lower metal wall, and a metal sidewall that couples the lower metal wall to the upper metal wall. The lower metal housing may have a finger scoop in the metal sidewall. The finger scoop may have a surface that is oriented at a non-parallel and non-perpendicular angle to a lateral surface of the upper housing when the upper housing is in the closed position. The device may have an antenna with a radiating slot in the surface of the finger scoop.

Abstract: An electronic device such as a laptop computer may have an upper housing and a lower housing. The lower housing may have a clutch barrel coupled to the upper housing by a hinge. The upper housing may be rotatable relative to the lower housing between an open position and a closed position. The upper housing may have a curved metal surface facing the clutch barrel. The device may have an antenna with a radiating arm on a curved interior surface of a substrate in the clutch barrel. The radiating arm may extend parallel to the curved metal surface. The radiating arm may remain separated from the curved metal surface across its lateral area as the upper housing is rotated from the open position to the closed position. This may ensure that the antenna is provided with a uniform capacitive load from the upper housing at all upper housing positions.

Abstract: A method and apparatus for drying the surface of a heat exchanger in a vehicle of moisture accumulating as a result of its use as an evaporator in an air conditioning system. Air is first heated by the heater core in the air conditioning system and then directed through the heat exchanger. Because of the reduced humidity of such air, any residual moisture in the heat exchanger is evaporated and is discharged to the environment. Where the system is used in a vehicle, it prevents the discharge of moist air onto the windows and/or windshield of the vehicle and thus minimizes or eliminates fogging of the windshield.

Abstract: A method and apparatus for drying the surface of a heat exchanger in a vehicle of moisture accumulating as a result of its use as an evaporator in an air conditioning system. Air is first heated by the heater core in the air conditioning system and then directed through the heat exchanger. Because of the reduced humidity of such air, any residual moisture in the heat exchanger is evaporated and is discharged to the environment. Where the system is used in a vehicle, it prevents the discharge of moist air onto the windows and/or windshield of the vehicle and thus minimizes or eliminates fogging of the windshield.