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| Number | Title | Issue Date |
| 8442221 | Method and apparatus for image encryption and embedding and related applications An image encryption method is described for encrypting an images using an encryption key. The encryption method includes dividing the image into pixel groups and shifting the location of the pixel groups according to an encryption key, and reordering the bits of the... | 05/14/2013 |
| 8351604 | Coding method, decoding method, codec and data storage medium for holographic storage In a coding method for the encryption of information worth protecting on a holographic data storage medium, an item of information (I; I1, I2) to be encrypted is converted into a graphic data image (D1, D2), which is in tu... | 01/08/2013 |
| 8270603 | Authentication method and system The present invention provides a method and apparatus for the production and labeling of objects in a manner suitable for the prevention and detection of counterfeiting. Thus, the system incorporates a variety of features that make unauthorized reproduction difficul... | 09/18/2012 |
| 8223964 | Three-dimensional authentication of mircoparticle mark A system, method, and apparatus for authenticating microparticle marks or marks including other three-dimensional objects. The authentication utilizes two or more sets of information captured or acquired for the mark in response to illumination of the mark by electr... | 07/17/2012 |
| 8199913 | Object authentication using embossed hidden images An authenticatable object comprises a surface having a latent hidden image embossed therein. The latent image is an encoded version of an authentication image and comprises a plurality of elements applied to the surface with a predetermined frequency. The latent hid... | 06/12/2012 |
| 8170208 | Image decrypting apparatus, image encrypting apparatus, and image decrypting method When a decrypting apparatus receives an encrypted image, the apparatus detects the state of the encrypted image and determines whether the encrypted image is an image passed through only a digital medium or an analog medium, according to the state of the encrypted i... | 05/01/2012 |
| 8155312 | Optical data storage device and method A device disclosed herein relates to a rotation invariant data storage device comprising, a data storage device with an optically sensible image, encoded data stored within the sensible image, and a plurality of radial vectors stores the encoded data. The encoded da... | 04/10/2012 |
| 8150033 | Optical security system using fourier plane encoding A method of encrypting a set of data is disclosed. The method may include encoding a set of data with a first encryption key, and transforming the set of data encoded with the first encryption key. The method may also include using a second encryption key to encode ... | 04/03/2012 |
| 8126141 | Interferometric communication Embodiments of interferometric communication are disclosed. ... | 02/28/2012 |
| 8126142 | Variable data encryption of characters printed or displayed on screen, which may be embedded in photos, images, drawings, illustrations, logos or figures, for security purposes It is a source of security digital characters, incomprehensible to the naked eye, which can only be identified when the transparent substrate (acrylic, plastic or another material) is placed over the substrate on which they were printed (paper, PVC, polyester, film ... | 02/28/2012 |
| 7831042 | Three-dimensional authentication of microparticle mark A system, method, and apparatus for authenticating microparticle marks or marks including other three-dimensional objects. The authentication utilizes two or more sets of information captured or acquired for the mark in response to illumination of the mark by electr... | 11/09/2010 |
| 7792291 | XOR encoded document for secure message exchange An XOR (exclusive or) encoded document is disclosed for establishing a joint secret between two parties. Encoded on the document are one or more areas of XOR messages. Each area containing an XOR message hides from view on each side of the XOR encoded document a dif... | 09/07/2010 |
| 7773749 | Authentication method and system The present invention provides a method and apparatus for the production and labeling of objects in a manner suitable for the prevention and detection of counterfeiting. Thus, the system incorporates a variety of features that make unauthorized reproduction difficul... | 08/10/2010 |
| 7738658 | Electronic forms including digital watermarking The present invention relates to creating and managing electronic documents. In one implementation, a method includes obtaining electronic data corresponding to an application document to obtain a driver's license; analyzing the electronic data to detect steganograp... | 06/15/2010 |
| 7680274 | Security element comprising micro- and macrostructures A security element which is difficult to copy includes a layer composite which has microscopically fine, optically effective structures of a surface pattern, which are embedded between two layers of the layer composite. In a plane of the surface pattern, which is de... | 03/16/2010 |
| 7646869 | System for copy protection of an information carrier The present invention relates to a system for copy protection of an information carrier, said system comprising a diffractive layer for delivering a speckle pattern when illuminated by a light source, a spatial filter, which is aligned with respect to the diffractiv... | 01/12/2010 |
| 7630494 | Forgery-proof packaging material with a security feature The invention relates to a packaging material with a forgery-proof security feature, whereby the security feature comprises a coded image arrangement which is provided on the packaging material and which reveals an image or image sequence by superimposing a related ... | 12/08/2009 |
| 7590239 | Object identifying medium using multi-layer thin-film A discrimination medium for objects by which counterfeiting can be prevented, authenticity of the article can be easily and reliably determined, and the production cost can be reduced is provided. In the discrimination medium, the support body 31 and the patt... | 09/15/2009 |
| 7447312 | Method and apparatus for secure ultrafast communication The present invention describes an ultrafast secure data communication system that can link remote users to an encrypted database with holographic-stored data and a high security and ultrafast transfer rate. ... | 11/04/2008 |
| 7440584 | System and method for marking data and document distribution Systems and methods are provided through which marks are generated for combination with a host image, in which source or user information is encoded into the mark either as a visually perceptibly unobtrusive pattern, or encoded by an arrangement of visually percepti... | 10/21/2008 |
| 7411702 | Method, apparatus, and computer program product for embedding digital watermark, and method, apparatus, and computer program product for extracting digital watermark A method for embedding a digital watermark includes a step of inputting digital watermark information; a step of inputting an image; a step of dividing the image into a plurality of areas; a step of ordering the plurality of areas according to a predetermined orderi... | 08/12/2008 |
| 7397928 | Insertion and extraction of a message in an image The invention concerns a method of inserting a message in an image, the message comprising binary symbols which are each referenced by an index, characterized in that it comprises, for a coefficient (Yn) of the image, the steps of: ... | 07/08/2008 |
| 7391529 | Apparatus and method for managing and using reusable document components during the process of dynamic document construction An apparatus (10) for processing documents each represented by a document description (12) encoded in a page description language supportive of reusable data includes a page description language interpreter (14) that receives the document descri... | 06/24/2008 |
| 7389421 | Countermeasure against estimation-based attacks of spread-spectrum watermarks Described herein is a technology for facilitating watermark detection. Spread-spectrum watermarking is a commonly employed technique for hiding data in digital goods (e.g., multimedia signals). Such watermarks may be potentially vulnerable to so-called “watermark ... | 06/17/2008 |
| 7386149 | Method and apparatus for embedding digital-watermark using robustness parameter An apparatus receives a document image and digital-watermark information and determines an embedding capacity based on a number of the letters in the document image. The apparatus determines whether or not the entire digital-watermark information is capable of being... | 06/10/2008 |
| 7373513 | Transmarking of multimedia signals A method of transmarking a watermarked media signal to adapt the watermark to the robustness and perceptibility constraints of a new environment. This transmarking method detects the first digital watermark in the media signal. It then embeds message information fro... | 05/13/2008 |
| 7370978 | Encrypting data Embodiments disclose encrypting data used to adjust reflectivity of the screen. ... | 05/13/2008 |
| 7372965 | Electric circuit management method and device The invention proposes a method of managing an electronic circuit of the type comprising a memory (EEPROM) for the storage of confidential information, the method comprising masking variations of the electrical current (I) consumed by the electronic circuit, during ... | 05/13/2008 |
| 7370016 | Music distribution systems Music is blanket transmitted (for example, via satellite downlink transmission) to each customer's user station where selected music files are recorded. Customers preselect from a list of available music in advance using an interactive screen selector, and pay only ... | 05/06/2008 |
| 7369659 | Item handling system An item handling system, comprising: at least one item preparation station for printing machine-readable symbols on items; and at least one item handling station for receiving items from the at least one item preparation station and being operable to machine read an... | 05/06/2008 |
| 7370204 | Watermark data embedding apparatus and extracting apparatus By a program process, CPU 31 embeds a watermark data into a waveform data stored in wave memory 41a. The program includes a step for detecting a characterizing part (attack part and loop part) of a waveform data that represents a waveform of a m... | 05/06/2008 |
| 7369678 | Digital watermark and steganographic decoding Steganographic signals or digital watermarks are detected from media signals. A media signal may represent audio, video or imagery. In one implementation, a method of detecting a digital watermark in a media signal is provided. The method includes receiving blocks o... | 05/06/2008 |
| 7369261 | Sensing device for enabling interaction between a computer and a form printed on a surface A sensing device for enabling interaction between a computer and a form printed on a surface. The form includes one or more first viewable information zones relating to one or more available commands and one or more second viewable information zones relating to one ... | 05/06/2008 |
| 7366301 | Optical watermark A multiple-layered watermark is generated to be placed on document, to protect against counterfeiting and forgery. Hidden information embedded into each of the watermark's layers is only detectable by using a corresponding decoder. Because of the multiple-layered st... | 04/29/2008 |
| 7366908 | Digital watermarking with content dependent keys and autocorrelation properties for synchronization A digital watermark detection method exploits autocorrelation properties of the watermarked signal that enable synchronization of the digital watermark despite temporal or geometric distortion of the host signal. Other watermark methods employ keys, including a key ... | 04/29/2008 |
| 7366338 | Automated document processing system using full image scanning A document processing system comprises an input receptacle for receiving documents. A transport mechanism receives the documents from the input receptacle and transports the documents past a full image scanner and a discrimination unit. An output receptacle receives... | 04/29/2008 |
| 7363497 | System for distribution of recorded content A method and system to acquire, digitize, store, and deliver live content, such as music, to an end user via a network. The system can capture live content directly into a portable audio format which can be encoded at various levels of resolution into a file. The en... | 04/22/2008 |
| 7362336 | Four color digital cinema system with extended color gamut and copy protection A color display system including a display device for four or more visible color primaries and a processor for controlling the four or more color primaries to selectively render portions of an image or image sequence such that visually equivalent colors displayed in... | 04/22/2008 |
| 7362891 | Automated document processing system using full image scanning A document processing system comprises an input receptacle for receiving documents. A transport mechanism receives the documents from the input receptacle and transports the documents past an image scanner and a discrimination unit. An output receptacle receives the... | 04/22/2008 |
| 7362860 | Image data encryption method, image data transform method, apparatus for the methods, computer program, and computer-readable storage medium This invention allows the encryption side to set whether an image playback apparatus should play back image data in a scrambled state or a non-scrambled state. When a code-block of input image data is an object to be encrypted, it is encrypted. In playing back the d... | 04/22/2008 |
