Abstract: A method and system for item marking and identification, representing an alternative to bar code reading, based on a a time-varying post emission of a plurality of fluorescent/phosphorescent items embedded into a marker embodiments of the present invention thus providing optical markers for information exchange. In a typical embodiment, information to be transmitted is divided into packets, whereas each packet represents a unique wavelength spectrum or signature. The said emission signature is generated in packets as a response to an activation signal is then analyzed sequentially. The varying spectral content of each said packet encodes a symbol, while symbol's position is encoded with the timing of the after-emission packet.

Abstract: A method, apparatus and product for items identification and search on the scene are disclosed. It comprises Fluorescent Marker and Fluorescent Marker Reader. Florescent Marker further comprises a Plurality Dynamic Fluorescent Entities enclosed in a Transparent Solid Medium, wherein the said medium is built into the item under consideration. The said Fluorescent Marker Reader further comprises Activator used to illuminate the said. Fluorescent Marker Reader further comprises Camera used to capture the response from the said Plurality of dynamic fluorescent entities, Activator generating activating light pulses, Visualizing Screen and Computation Unit. The latter controls the said Activator, Camera, Visualizing Screen and matches dynamic/spectral response against previously stored pattern thus identifying the said item or locating it on the scene.

Abstract: A method and apparatus for establishing product items unique identity for purpose of anti-counterfeiting or anti-theft is disclosed. It employs a fluorescent taggant embedded in product item, template, digitally based Encoder and Decoder. The taggant comprising plurality of fluorescent entities which in turn may comprise such distinct geometric and spectral optical characteristics-attributes as relative locations, emission/absorption spectra, polarization degrees and post luminanc delay and duration times. Such uniqueness is determined by the presence of a combination of a wide variety of fluorescent materials used during the application. The set of fluorescent entities are result of a random process and form a product item's fingerprint. The said template is a particular digitized representation of a taggant. The Encoder may comprise a camera, LED array based activator, configured to follow a particular illumination sequence and computation unit.

Abstract: A multi-biometric finger sensor may include an integrated circuit (IC) substrate for receiving a user's finger. The multi-biometric finger sensor may also include an optical source for projecting light of a known polarization angle onto the user's finger and at least one optical sensing pixel on the IC substrate for detecting a relative depolarization angle of the light reflected from the user's finger. The multi-biometric finger sensor may also include at least one other biometric finger sensing pixel on the IC substrate for sensing at least one other biometric characteristic from the user's finger.

Abstract: A multi-biometric finger sensor may include an integrated circuit (IC) substrate for receiving a user's finger. The multi-biometric finger sensor may also include an optical source for projecting light of a known polarization angle onto the user's finger and at least one optical sensing pixel on the IC substrate for detecting a relative depolarization angle of the light reflected from the user's finger. The multi-biometric finger sensor may also include at least one other biometric finger sensing pixel on the IC substrate for sensing at least one other biometric characteristic from the user's finger.