Abstract: A method for compensating for range gate slide with respect to received returns within a radar altimeter is described. The method includes adjusting the amount of overlap between a range gate pulse and a radar return signal until an altitude output by the radar altimeter is within a desired tolerance, and incrementally increasing an amount of attenuation within the receiver circuit of the radar altimeter until the radar altimeter breaks track with the radar return signal. the method also includes recording a signal strength and altitude output at each increment of attenuation, determining an altitude error for each altitude output, and fitting the signal strength data against the altitude error using a plurality of variable length line segments.

Abstract: A method for compensating for range gate slide with respect to received returns within a radar altimeter is described. The method includes adjusting the amount of overlap between a range gate pulse and a radar return signal until an altitude output by the radar altimeter is within a desired tolerance, and incrementally increasing an amount of attenuation within the receiver circuit of the radar altimeter until the radar altimeter breaks track with the radar return signal. the method also includes recording a signal strength and altitude output at each increment of attenuation, determining an altitude error for each altitude output, and fitting the signal strength data against the altitude error using a plurality of variable length line segments.

Abstract: A container for a refrigerator in which the container comprises a pan having an access opening, which is covered by a door pivotally mounted to the pan. The pan is slidably mounted within the refrigerator in a conventional manner. The door has opposing fingers extending from the side edges thereof and a hook extending from the top edge thereof. As the pan is slid outwardly from the refrigerator, the fingers abut liner studs extending from the inner liner of the refrigerator to partially rotate the door from a closed position toward an open position. On the continued sliding of the pan, the hook abuts a sloped surface of the liner to continue the rotation of the door completely into the open position.

Abstract: A mullion assembly includes a mullion rail and hot gas tube for preventing condensation on the mullion of a refrigerator/freezer. The mullion rail is rollformed of steel and includes complementary channels for retaining refrigerator and freezer liners. One of the channels includes an additional formed portion to accept and positively retain a hot gas tube in surface contact with a rear surface of a front wall of the mullion rail to provide acceptable heat transfer from the tube to the steel along the entire length of the mullion rail.

Abstract: A delta-sigma modulator is provided with a multi-stage shift register coupled to receive as its input the output from a quantizer including an analog integrator. The serial digital output signal train from the shift register is fed back to the input of the integrator and because of the frequency division which takes place, for a given high clock rate, an operational amplifier with a lower gain/bandwidth product may be employed. The invention also includes a signal processor coupled to the output of the delta sigma modulator and which is arranged to provide an adaptive window based, decimation cycle whose exact timing is data dependent. The adaptive windowing process implemented in a microprocessor-based signal processor allows the first occurrence of a proper polarity state transition occurring during a window period to become the termination point of the computation cycle rather than providing a fixed time interval.

Abstract: A differential-mode signal transmission system includes a circuitboard composed of at least one dielectric board substrate and a pair of spaced apart conductive parallel planar signal transmission lines disposed on one surface of the substrate and extending between a pair of edges thereof for providing pass-through transmission of differential-mode signals from one to the opposite edge of the substrate. Preferably, the circuitboard is composed of at least a pair of dielectric board substrates being disposed in face-to-face layered contact with one another and having at least one pair of the spaced apart conductive parallel planar signal transmission lines disposed between the layered substrates along the inner surfaces thereof. Ground planes are provided on the outer surfaces of the layered substrates for electrically shielding the parallel planar transmission line pair.