Abstract: An electronic weighing apparatus, comprising: a scale mechanism having a weighing plate for placing an article being weighed, a slit plate provided to be moved associated with the weight of said article on said weighing plate and having a series of slit equally spaced in the moving direction, a light source provided at one side of said slit plate, a photodetector provided at the other side of said slit plate opposite to said light source, whereby a pulse train is generated from said photodetector the number of which pulses is associated with the movement of the slit plate and thus with the weight of said article, a counter for counting the number of pulses of said pulse train for providing the weight value, a display for displaying the weight value in said counter, a zero point detecting circuit for detecting the weighing plate having returned to the zero point, a balanced state detecting circuit for detecting said weighing plate having reached a balanced state, a measurement start switch, a first AND gate re

Abstract: An electronic weighing apparatus, comprising: a scale mechanism having a weighing plate for placing an article being weighed, said article having a net weight and including a packing having a tare weight, a pulse train generator operatively coupled to said weighing plate for generating a pulse train the number of which is associated with the weight of said article, a counter for counting the number of pulses of said pulse train for providing a weight value signal, a shift register responsive to said counter for storing the weight value signal in said counter, a tare weight display for displaying the weight value stored in said shift register, a net weight display responsive to said counter for displaying the weight value in said counter, a key board for setting the unit price of said thing, an operation circuit responsive to said key board and counter for making a multiplying operation of said unit price by said weight value in said counter for evaluating the price of said thing, a price display for displayin