Counting Systems
A number of electronic counting systems have a directional discriminator for accepting input signals. They exhibit a counter responsive to the directional discriminator in performing the counting function. Importantly, the presence of a numerical display is responsible for displaying the value of the present count and logic apparatus for the calculation that displays the values for manual input to the up-down counter. The entry logic apparatus includes a keyboard for the manual entry of numerical data and function commands. A computer-calculator serves as an element for processing the numerical entry display in displaying the numerical data entered into the keyboard and shows the function results. A transfer switch applies the numerical data of the entry display to the up-down counter for setting the counter to the entry display value.
Screen shot of Computerized Patron Counting System
