Structure comprising a watermark or pseudo-watermark, and an integrated microcircuit device

Abstract

The invention provides a structure comprising: a fiber layer; a sub-structure including a translucent region; a watermark or pseudo-watermark carried by the fiber layer and superposed at least in part with the translucent region of the sub-structure, such that, in the translucent region of the sub-structure, the watermark or pseudo-watermark is observable in light transmitted through the structure only from the face of the structure that is adjacent to the fiber layer; and an integrated microcircuit device for communicating with or without contact.

Dependencies are inferred from the claim text.