Computing scale system

Details Computing scale system Computing scale system

G - Physics

01

G

354/233, 354/38

G01G 19/413 (2006.01) G06F 15/22 (1980.01)

Patent

CA 1050165

Abstract of the Disclosure A computing scale system is provided for particular utility in connection with a point-of-sale merchandising terminal. The system may include a plurality of scales, each interconnected with a checkout counter and each associated with its own display unit. The display units each have electro-optic displays for displaying weight, price per unit weight and total value. The weight as measured the scale is transmitted to the display unit for storage and display together with storage and display of price per unit weight information as entered by the display unit keyboard. Associated with one of the display units is a computing unit, which computes total price information for all display units on a time sharing basis. The computing unit generates- display unit addresses at each of the display units, and the display units in turn respond with status information. So long as a display unit is in condition for servicing by the computing unit, the computing unit continues servicing that display. When a total value computation has been completed, then that total value is transmitted, together with the appropriate display unit address, to the display unit being serviced. If at any time during servicing, a display unit responds with improper status information, then the computing unit enters a program abort loop and begins servicing another display unit. -1-

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