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Cryptography > By Modifying Optical Image (e.g., Transmissive Overlay)

By Modifying Optical Image (e.g., Transmissive Overlay)

By Modifying Optical Image (e.g., Transmissive Overlay) patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

10/18/07 - 20070242823 - 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 steganographic indicia encoded therein, the steganographic indicia comprising a plural-bit identifier; and associating the plural-bit ...

09/20/07 - 20070217604 - Encrypted data recording apparatus
An encrypted data recording apparatus is disclosed. The encrypted data recording apparatus includes: analyzing means for analyzing encrypted data inputted; decrypting means for decrypting the encrypted data analyzed by the analyzing means; encrypting means for encrypting the data decrypted by the decrypting means using key information peculiar to the encrypted ...

09/13/07 - 20070211897 - Method of detecting watermarks
There is described a method of determining a measure of scale factor (MSF) by detecting a watermark included in a sequence (10) of images (20). The watermark is included in several mutually changed forms in the sequence (10). In a first step, the method involves receiving the sequence (10) of ...

09/06/07 - 20070206791 - Image processing apparatus
The security of image data is enhanced by utilizing operation keys used in performing image processing and by generating an apparatus-specific encryption key to encrypt the image data with the encryption key. Generation of the encryption key is started when an input is made with a specific operation key. Every ...

06/14/07 - 20070133793 - Data processor and data processing method
According to one embodiment, a data processing method of a data processor for storing data into a recording medium having a first storage area which allows access from only specific applications complying with a copyright protection technique and a second storage area which allows access from the specific applications and ...

05/17/07 - 20070110235 - Method and system for authenticating appraisal reports
A computer implemented method for authenticating an appraisal report comprising collecting data on an appraisal document, extracting the data, encrypting the data, encoding the encrypted data into an image, affixing the image onto the appraisal document, extracting the image from the appraisal document, decrypting the encrypted data, and verifying the ...

04/05/07 - 20070076869 - Digital goods representation based upon matrix invariants using non-negative matrix factorizations
Described herein is one or more implementations that produce a new representation of a digital good (such as an image) in a new defined representation domain. In particular, the representations in this new domain are based upon matrix invariants. More particularly still, the specific matrix invariants described herein include non-negative ...

04/05/07 - 20070076868 - 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 pixel values of the image according to ...

10/26/06 - 20060239454 - Image forming method and an apparatus capable of adjusting brightness of text information and image information of printing data
An image forming method and an apparatus capable of adjusting brightness of text information and image information of printing data. In the image forming method, printing data is divided into the text information and the image information, brightness values of the text information and the image information are adjusted, and ...

09/21/06 - 20060210074 - Digital recording device digital reproduction device digital recording/reproduction device encryption device decryption device, encryption method and decryption method
In a digital recording apparatus including a data control circuit 2a, a memory 4, an encryption circuit 5, an interface 6, a DVD drive 8, and a CPU 3, when encryption is required during recording, data is temporarily stored in the memory 4. After the encryption circuit 5 is enabled, ...

06/29/06 - 20060140403 - Multiple transform utilization and application for secure digital watermarking
Multiple transform utilization and applications for secure digital watermarking. In one embodiment of the present invention, digital blocks in digital information to be protected are transformed into the frequency domain using a fast Fourier transform. A plurality of frequencies and associated amplitudes are identified for each of the transformed digital ...

02/02/06 - 20060023879 - 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 pattern 20 appear to be the same color when viewed ...

01/26/06 - 20060018467 - Device for authentication and identification for computerized and networked systems
The invention consists of a uniquely punched or printed key, often in the form of a card, that is used to identify and authenticate a user during online transactions. The computer randomly generates an array of characters, such as numbers, letters or symbols, which is displayed to the user, e.g., ...

06/09/05 - 20050123134 - Digital anti-counterfeiting software method and apparatus
This invention relates generally to a method and apparatus, as implemented by a software program on a computer system, for digitally producing counterfeit-deterring scrambled or encoded indicia images. This method and system are capable of combining a source image with a latent image so the scrambled latent image is visible ...



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