Electronic counting system with keyboard input

Details Electronic counting system with keyboard input Electronic counting system with keyboard input

1976-11-26

1978-04-11

Smith, Jerry

Boots, shoes, and leggings

235 92PE, G06F 1502, H03K 2118

Patent

active

040842495

ABSTRACT:
An electronic counting system having a directional discriminator for accepting input signals representative of the count, a reversible up-down counter responsive to the directional discriminator for performing the counting function, a numerical display for displaying the value of the present count, and logic apparatus for the calculation and display of 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 element for processing the numerical entry display for displaying the numerical data entered into the keyboard and 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.

REFERENCES:
patent: 3725873 (1973-04-01), Hare
patent: 3813525 (1974-05-01), Kitterman et al.
patent: 3821535 (1974-06-01), Nagakura et al.
patent: 3877216 (1975-04-01), Mounce et al.
patent: 3962565 (1976-06-01), Guyen-Phuoc
patent: 3983378 (1976-09-01), Tammi

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