Bar code display apparatus

Details Bar code display apparatus Bar code display apparatus

1997-05-28

1999-08-17

Hajec, Donald

Registers

Coded record sensors

Particular sensor structure

235487, G06K 710

Patent

active

059396997

ABSTRACT:
A bar code display apparatus includes a time-varying nonpredictable code generator (12) and a display device (14) responsive to the time-varying nonpredictable code generator (12) to display a time-varying nonpredictable bar code. The display device can provide a scrolling display by displaying a subsequent bar code portion having a bar removed from an end of the bar code. Alternatively, the display device can display a pulsed signal corresponding to the bar code. A housing, having an inset portion at which the display device is accessible, can support the time-varying nonpredictable code generator and the display device.

REFERENCES:
patent: 4358761 (1982-11-01), Iwasaki
patent: 4667087 (1987-05-01), Quintana
patent: 4868376 (1989-09-01), Lessin et al.
patent: 5166499 (1992-11-01), Holland et al.
patent: 5450491 (1995-09-01), McNair
patent: 5594493 (1997-01-01), Nemirofsky
patent: 5789732 (1998-08-01), McMahon et al.

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