Abstract: An electronic scale having a load cell and a converter for providing successive digital weight signals corresponding to time-samples of the output signal. A circuit for providing a statistical approximation of actual weight produces a weight-representing signal. The latest digital weight signal provided by the converter is compared to the weight-representing signal to determine if the difference therebetween is within a predetermined range and, if so, the latest digital weight signal is added to the statistical approximation. The weight-representing signal represents either a zero weight in the absence of an object, or the weight of an object which is placed upon the load cell.

Abstract: A method of and apparatus for determining and displaying the postal rate for a parcel to be shipped to a destination zone by a selected class of shipment in accordance with the weight of the parcel. A memory is provided with plural sections, each section being substantially associated with a particular class of shipment, and each section storing postal rate data for predetermined weight increments at addressable locations. The address of a location is determined by the parcel weight and the destination zone. Digital weight data is produced as a function of the weight of a parcel placed on the scale and the particular class of shipment and destination zone are selected as desired. The addressed memory location preferably is comprised of first and second parts for storing first and second portions of the composite postal rate data; these first and second parts being read out on a time sharing basis to a display device.