Patent Document ID: 4143724
Application ID: 05761418
Patent Flag: 1

Claim One:
1. An electronic weighing apparatus for converting an analog electrical signal representing the weight of an article being weighed, to a digital electrical signal of a given resolution, comprising: analog signal means responsive to the weight of an article being weighed for providing said analog electrical signal representing the weight of said article, analog-to-digital converter means responsive to said analog electrical signal for converting said analog electrical signal into a first digital electrical signal (Di) representing the weight of said article at the output of said analog-to-digital converter whereby said first digital electrical signal (Di) is subject to the differential non-linearity inherent in said analog-to-digital converter means, adder means coupled to said analog-to-digital converter means for adding a digital electrical addend signal value (P2) to said first weight representing digital electrical signal (Di) for providing a sum digital electrical signal (Do), whereby said first weight representing digital electrical signal is shifted by said digital electrical addend signal value (P2) toward an improved analog - to - digital transfer function, divider means coupled to said adder means for dividing said sum digital electrical signal (Do) by a digital electrical divisor signal value (P1) for providing a second weight representing digital electrical output signal (Da) at the output of said divider means, said electrical addend signal value (P2) having a fixed relationship to said electrical divisor signal value (P1) such that said second weight representing digital electrical output signal (Da) has an improved resolution relative to said first weight representing digital electrical signal (Di), and whereby said second weight representing digital electrical output signal (Da) has a determined relation to said weight associated analog signal, and means responsive to said divider means for displaying said second digital electrical signal, whereby any differential non-linearity error occurring in said analog-to-digital converting is mimimized.