Data filtering circuitry

Details Data filtering circuitry Data filtering circuitry

1974-04-17

1976-02-10

Miller, Jr., George H.

Weighing scales

Computer

Electrical

23515133, G01G 1904

Patent

active

039372871

ABSTRACT:
Improved apparatus for weighing and computing a value for articles. An integrated circuit microcomputer is supplied with the gross article weight from a scale and with price per unit weight data from a manual keyboard. Tare weight data may be entered either through the manual keyboard or automatically from the scale. The microcomputer computes a net weight and a value for each weighed article. The net weight, the price per unit weight and the value are indicated on a digital display and may be printed on a label. Filtering circuitry prevents jitter in the article weight supplied from the scale to the microcomputer and the display caused by small vibrations in the article or the scale.

REFERENCES:
patent: 3329807 (1965-07-01), Currie
patent: 3439760 (1969-04-01), Allen
patent: 3459271 (1969-08-01), Susor et al.
patent: 3516504 (1970-06-01), Allen
patent: 3698493 (1972-10-01), Tamanaka
patent: 3725656 (1973-04-01), Fukuma
patent: 3740536 (1973-06-01), Takahashi
patent: 3769498 (1973-10-01), Hino et al.
patent: 3770069 (1973-11-01), Losmbough

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