摘要:
A security element that can be embedded in the form of a thread or strip in a security document, in particular a paper of value, is composed of two carrier sheets, each of which bears each of the marking substances allowing for detection of authenticity. The two carrier sheets are put together in such a way that the marking substances to be protected from mechanical abrasion and other external influences come to lie on the inside.The thread not only offers special protection for the marking substances, but can also be embedded in the paper substance easily due to its symmetrical structure and without showing any tendency to curl.
摘要:
The burner comprises a combustion chamber equipped with a flame retention cone. The flame retention cone comprises a diverging jacket with orifices for the passage of oxygen-carrier gas. A fuel lance provided with radially arranged exit openings has its outlet in an upstream inlet section of the flame retention cone. An igniter is arranged in an oxygen-carrier gas duct outside an ignition opening provided in the area of the fuel lance exit openings. The combustion chamber is accommodated inside an outer tube. The downstream ends of the combustion chamber and the outer tube enclose openings spaced, relative to each other, in the circumferential direction to allow the exit of oxygen-carrier gas. The burner provides for flame stability and low-polluting combustion.
摘要:
A security document such as a credit card or the like carries an automatically, machine-sensed material adapted to generate reproducible signals unique to such document. The material is arranged randomly along a line-like track and sensed by a scanning head having a transverse sensing slot of much greater length than the track width, whereby reproducibility of the scanning signals is assured. A system for testing the authenticity of such documents includes sensing means for detecting the material of the line-like track and converting it into a corresponding electric signal and a comparator means in which the electric signal is tested as to its identify relative to a signal generated in the same manner during the previous sensing. The electric signal is derived from a verification characteristic of the card which may be intrinsic property of the card material.
摘要:
The invention relates to a printed security with a hallmark in the form of a coating applied in a vacuum to the surface of the security. This coating is so thin that it is almost invisible even as a metal layer, while at the same time permitting accurate automatic examination. The absorption characteristics of the security are preferably measured in a certain range of the wavelength of the spectrum.
摘要:
Security paper with luminescing authenticity characteristics which after excitation with invisible light emit exclusively invisible light of different wavelengths as authenticity signal. The luminophores can be included in the printing ink used or they can be added to the paper material in the manufacture of the paper material. A corresponding test apparatus makes it possible to check the authenticity of the security paper in the presence of customers but unnoticed by them; thereby the invisibility of the test signal and the authenticity signal are taken advantage of and the test device is hidden behind a plate non-transmissive for visible light which however is transmissive for the test signal and for the authenticity signal.
摘要:
This invention relates to a security paper with a hallmark in the form of a coating applied by vacuum deposition techniques to the surface of a paper substrate. The coating is very thin and almost invisible to the naked eye even as a metal layer, although permitting accurate automatic or machine examination for verification purposes. the absorption of the hallmarks in a certain range of the wavelength of the spectrum, the exiting spcetrum of luminescence, the photoconductivity and/or the electrical conductivity of the hallmarks are characteristics used during the automatic examination of the authenticity of the security paper.
摘要:
In the method, light from an ultraviolet light source is directed alternately through a neutral filter, uniformly damping the radiation of the light source, and through a partially absorbing filter damping only the wavelengths necessary to excite the fluorescence of a selected flourescent material, the partially absorbing light filter including the selected fluorescent material. The light passing through the filters is then directed through a first blocking filter onto a sample to be checked for the presence of a selected fluorescent material. Only the radiation from the sample is directed through a second blocking filter onto a photodetector or the like. The respective intensities of radiation of the sample, effected by the neutral filter and by the partially absorbent filter, are measured and converted into output signals indicative of the presence or absence of the selected fluorescent material. The two filters may be moved alternately into the path of the exciting beam from the light source, and the neutral filter may be either a wide band absorbing grey filter or a free opening for passage of the exciting beam from the light source. By using plural of such partially absorbing light filters, each damping only the wavelengths necessary to excite the fluorescence of a respective fluorescent material, it is possible to distinguish between several fluorescent materials which may be present in the sample.
摘要:
A method and apparatus for creating links between a representation, (e.g. text data,) and a realization, (e.g. corresponding audio data,) is provided. According to the invention the realization is structured by combining a time-stamped version of the representation generated from the realization with structural information from the representation. Thereby so called hyper links between representation and realization are created. These hyper links are used for performing search operations in realization data equivalent to those which are possible in representation data, enabling an improved access to the realization (e.g. via audio databases).
摘要:
The present invention relates to a method and apparatus for determining the state of bank notes.Determination of the state of bank notes by which data of at least two different properties of the bank notes are evaluated involves linking the data of the at least two different properties of each bank note with each other, and deriving the state of the bank note from the linked data of the different properties.
摘要:
The present invention provides a method and system for computerized synchronization of an audio stream having a first synchronized textual representation usable for subtitling of the audio stream in the original language, with a second synchronized textual representation which can be used as an alternative subtitle including a transcription of the original language into another language. Time synchronous links can be built between the audio stream and, for instance, the textual representations of the words spoken in the audio stream. More particularly, the second representation can inherit the synchronization between the audio stream and the first representation using structure association information determined between the first and the second representation.