Bar code display apparatus
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United States of America Patent
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-
Aug 17, 1999
Grant Date -
N/A
app pub date -
May 28, 1997
filing date -
May 28, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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