Multi-layer information carrier with switching circuit
OwnerJosephus Arnoldus Kahlman, Martinus Van Der Mark +1inventors
InventorsJosephus Arnoldus Kahlman, Martinus Van Der Mark, Erwin Meinders
Life of this patent
Estimating the term…
Abstract
The invention relates to an information carrier comprising at least one information layer which optical properties depend on a potential difference applied between two electrodes (531,532). The information carrier is intended to be scanned by an optical scanning device comprising means for generating a signal comprising information about a selected information layer. The information carrier comprises means (51) for receiving this signal, means (521) for decoding this signal and means (522-524) for applying a potential difference between the electrodes corresponding to the selected information layer.
Claims12
An information carrier comprising at least one information layer which optical properties depend on a potential difference applied between two electrodes (531, 532), said information carrier being intended to be scanned by an optical scanning device comprising means for generating a signal comprising information about a selected information layer, said information carrier comprising means (51) for receiving said signal, means (521) for decoding said signal and means (522-524) for applying a potential difference between the electrodes corresponding to the selected information layer.
Dependencies are inferred from the claim text.