A device for determining the authenticity of banknotes

 

(57) Abstract:

The invention relates to systems for the recognition of the authenticity of the documents and can be used to identify genuine and counterfeit money. The purpose of isobutene is to increase the probability of detection of counterfeit banknotes and improving the reliability of determining the authenticity of banknotes. The device includes first and second laser sources 1 and 2 radiation , the first and second receivers 5 and 6 of the radiation of the first and second scanners 3 and 4. the optical block 7 spatial separation of N-rays, the optical focusing system 8, block 9 of the signal processing block 10 determine the texture of the paper, block 11 of the identification signal, the first and second blocks 12 and 13, a buffer memory, scanner, block 15 permanent memory, block 16 comparison, the synchronizer 17 and the mechanism 18 transportation of banknotes In the invention result is achieved due to the fact that there are two types of modulation - amplitude and phase 3 for f-crystals, 6 ill.

 

Same patents:

FIELD: sorting of bank notes.

SUBSTANCE: the disadvantage of the known devices of the similar type consists in inconvenience of their use, since the possibility of free and easy access to the path of motion of the bank notes is not provided for the user because of a complicated mechanical construction of the transportation system. Owing to it, it is complicatedly enough to extract the bank notes, which because of malfunctions in the process of their transportation may block the transportation system. The invention makes it possible to eliminate the mentioned disadvantage due to the fact that the device for sorting of bank notes consists at least of three component, and at least of two separated from the external components.

EFFECT: a free and easy access to the transportation system is provided.

17 cl, 4 dwg

FIELD: technologies for validating documents, etc.

SUBSTANCE: device has detector with electrodes, detector and signals processing device, during check an alternating electric field is formed, which excites electro-luminescent radiation. One detector detects electro-luminescent signal of validity mark and transforms it to electrical signal, one electrode is made flat or in form of electro-conductive covering of pressing roller, another - in form of electro-conductive film of pressing roller, or one electrode is made plated of transparent electro-conductive material or in form of round electrode in form of one or several wires, and other one - in form of electrode head.

EFFECT: higher efficiency.

3 cl, 12 dwg

FIELD: automated recognition of symbols.

SUBSTANCE: method includes following stages: tuning, forming symbols models, recognition, recording background model together with background of read image, separating model of registered background from elementary image of background, combining for each position of symbol of model of letters and/or digits with elementary displaying of appropriate background, forming of combined models, comparison of unknown symbols to combined models, recognition of each unknown symbol as appropriate symbol, combined model of which is combined with it best in accordance to "template comparison" technology.

EFFECT: higher efficiency.

10 cl, 10 dwg

FIELD: estimation of authenticity of documents, excise brands, bank-notes and securities.

SUBSTANCE: proposed compound is prepared by mixing gadolinium oxysulfide activated by terbium and yttrium oxysulfide activated by ytterbium and erbium. Size of crystal particles of said luminophores does not exceed 1.5 mcm. Compound thus prepared is introduced into printing ink and is applied on surface to be marked by letterpress printing method in form of mark which is invisible at common lighting. Mark is visualized by infra-red light source and/or ultraviolet radiation thus causing its green glow. Document is subjected to identification for estimation of its authenticity of falsification. Marking retains preset properties for extended period of time at high temperatures, bright light and high moisture content.

EFFECT: enhanced efficiency of protection against falsification.

4 cl, 3 ex

FIELD: securities protection.

SUBSTANCE: invention relates to physicochemical protection of securities against falsifications. Coding composition contains one or several code-recognizing compounds, near IR region fluorescent agent, and IR-active compounds containing hydrogen-unbound or weakly bound X-H bonds (X = )-, N-, and ≡C-). Additionally included are IR-active compounds of general formula R1-C≡C-R2 (R1 and R2 are metal or halogen atoms). Method of invention resides in a single or multiple application(s) of one or several coding compositions onto object either avoiding spatial overlapping of compositions or in the form of compositions intersecting in different sequences of streaks, which sequences differ from each other in their code-recognizing components. Recognition of mutually masked code-recognizing and IR-active components is achieved either by way of varying wavelength in excitation spectra or varying intensity and shape of spectra in near IR fluorescence region. Sequence of applied streaks is determined from conformity of code-recognition spectra in higher monomolecular layer (or several monolayers) of composition in a streak intersection point to spectra of individual streaks.

EFFECT: increased information capacity of protection system due to increased diversity of differentiated components.

3 cl, 7 dwg, 6 ex

FIELD: protection coatings.

SUBSTANCE: invention aims at protecting bank notes and security papers against counterfeiting. Optically changing pigment contains interferential multilayer structure including light-transmitting dielectric layer having at least one luminescent material. Dielectric layer is selected from of rare-earth metal, bismuth, and principal group III element trifluorides; of principal group II element difluorides; mixtures thereof; organic or organometallic compounds. Luminescent material should be selected from organic or organometallic compounds containing transition or rare-earth metal ions. Above-defined structure may contain one or more semitransparent, partly reflecting layers, one or more nontransparent, fully reflecting layers, and one or more conducting layers. Pigment is prepared by a method including physical or chemical precipitation of the dielectric layer.

EFFECT: preserved proper properties of color shift, increased reliability of protection, and ensured identification simplicity at relatively low cost.

30 cl, 1 tbl, 9 ex

FIELD: magnetic thread recognition means.

SUBSTANCE: method provides for relative movement between thread and matrix of magnetic heads; each head generates a signal in case of detection of a portion of thread. Approach of thread to one of heads is detected, while this head is marked as main head, and heads on each side of the latter - as secondary heads. Output signals from main and secondary heads are controlled for forming of an image of thread signals amplitudes from main and secondary heads are compared, so that if amplitude of output signal from secondary head exceeds amplitude of signal from main head, then secondary and primary heads are appropriately reassigned.

EFFECT: higher speed of operation, higher efficiency.

6 cl, 17 dwg

FIELD: product authentication.

SUBSTANCE: system has at least one material, providing transformation with frequency increase, as protective marking and one authenticating apparatus, which has one source of electromagnetic radiation with one previously selected wave length and one second electromagnetic radiation source with one second previously selected wave length, which are different from each other and are selected in such a way, that they cause emission by material, providing for transformation with frequency increase, of electromagnetic radiation after combined irradiation by emission with first and second wave lengths, and emitted electromagnetic radiation has radiation with one additional third wave length, specific for return of one electron from activation ion energy level to level, at which electron is excited by combined emission with first and second wave lengths.

EFFECT: higher efficiency.

6 cl, 2 dwg

FIELD: sorting and/or destroying of sheet material, primarily banknotes.

SUBSTANCE: device has processing means, including means for gathering information during processing of separate sheets of sheet material and means for registering data, identifying separate sheets of sheet material, and connected to processing device via galvanically unlocked connection line of control devices with memorizing device for storing information about processing of separate sheets, while memorizing device is made with possible storing of information in it concerning processing of separate sheets of sheet material together with data, identifying separate sheets of sheet material.

EFFECT: higher efficiency, higher reliability.

2 cl, 1 dwg

FIELD: forgery protection and authenticity control of documents.

SUBSTANCE: method includes using an indicator in form of two open spirals in form of an evolvent. Also transformation is performed using sensor of generator electromagnetic emission to electric voltage, in the sensor frequency is altered with following comparison to measurement results standing for authentic funds and/or documents.

EFFECT: higher protection level.

7 cl, 2 dwg

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