| Patents for G09C 5 - Ciphering or deciphering apparatus or methods not provided for in other groups of this subclass, e.g. involving the concealment or deformation of graphic data such as designs, written or printed messages (2,737) |
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| 11/08/2007 | WO2002023794A3 Polarisation encryption/decryption module |
| 11/07/2007 | EP1208499A4 Methods and systems employing digital watermarking in music and other media |
| 11/07/2007 | CN100347768C Method and apparatus for the encryption of data |
| 11/06/2007 | US7293294 Method and apparatus for using contents |
| 11/06/2007 | US7293292 Method and system for securely and selectively providing optional features or premium functionality in a printer |
| 11/06/2007 | US7293172 Scrambling of image by randomizing pixel values |
| 10/31/2007 | CN100346631C Information output recording apapratus and method, recording system and method and recording medium |
| 10/25/2007 | WO2007118286A1 A pictograph and articles which use the pictograph |
| 10/23/2007 | US7287284 Information processing method and apparatus, and computer program and computer-readable storage medium |
| 10/23/2007 | US7286664 Efficient implementation of MD5 message-digest algorithm (RFC1321) on an 8 bit micro-controller |
| 10/18/2007 | WO2007041816A3 Combination system of variable passwords |
| 10/18/2007 | US20070242823 Electronic Forms Including Digital Watermarking |
| 10/16/2007 | US7284129 Data processing apparatus and method |
| 10/16/2007 | US7284128 Recording medium, recording medium method and apparatus , information signal output control method, recording medium reproducing apparatus, signal transmission method, and content data |
| 10/16/2007 | US7283643 Determination of a segmentation of a digital signal for inserting watermarking signals and the associated insertion |
| 10/16/2007 | US7283630 Verification of authenticity of goods by use of random numbers |
| 10/09/2007 | US7280672 Image data processing |
| 10/09/2007 | US7280661 Data output method and apparatus, data playback method and apparatus, data recording method and apparatus, and data recording and playback method and apparatus |
| 09/27/2007 | WO2007107976A2 Period keys |
| 09/27/2007 | DE102005016818B4 Einrichtung zur optischen Verschlüsselung, Einrichtung zur optischen Entschlüsselung und Verschlüsselungs-/Entschlüsselungs-System Optical means for encryption, means for optically decoding and encryption / decryption system |
| 09/25/2007 | US7273169 Secure photo carrying identification device, as well as means and method for authenticating such an identification device |
| 09/25/2007 | CA2407130C System for producing a printable security device image and detecting latent source image(s) therefrom |
| 09/20/2007 | WO2007106798A2 Systems and methods for authoring and protecting digital property |
| 09/20/2007 | WO2007105760A1 Liquid crystal image display device and liquid crystal image display method |
| 09/20/2007 | US20070217605 Recording medium, data recording method and apparatus, data regenerating method and apparatus, and copy control method |
| 09/20/2007 | US20070217604 Encrypted data recording apparatus |
| 09/18/2007 | US7272239 Information processing method and apparatus, and computer program and computer -readable storage medium |
| 09/13/2007 | US20070211897 Method of detecting watermarks |
| 09/11/2007 | US7269273 Image processing apparatus for embedding information with a noise-multiplexed distribution, and method, computer program, and computer-readable storage medium therefor |
| 09/11/2007 | US7269272 Image processing apparatus for embedding information with a noise-multiplexed distribution, and method, computer program, and computer-readable storage medium therefor |
| 09/06/2007 | US20070206793 Protecting content from illicit reproduction by proof of existence of a complete data set via self-referencing sections |
| 09/06/2007 | US20070206791 Image processing apparatus |
| 09/05/2007 | EP1829709A2 Printed product |
| 09/05/2007 | CN200942636Y Digital blind-mark false proof stamp |
| 09/05/2007 | CN100335984C Method and device for portecting content from illicit reproduction |
| 08/30/2007 | US20070201835 Audio Encoding to Convey Auxiliary Information, and Media Embodying Same |
| 08/28/2007 | US7263188 Data delivery system, server apparatus, reproducing apparatus, data delivery method, data playback method, storage medium, control, signal, and transmission data signal |
| 08/23/2007 | WO2007093652A1 Secret code medium |
| 08/22/2007 | EP1821255A2 A video data recording and reproducing apparatus with data modification detection |
| 08/21/2007 | US7260237 Method and system for generating data of an application with a picture |
| 08/16/2007 | DE10195850B4 Verfahren zum Integrieren eines Wasserzeichens in ein komprimiertes Bild A method of integrating a watermark into a compressed image |
| 08/15/2007 | EP1546889A4 Digital content with information of latent value to purchaser and method for making the same |
| 08/15/2007 | EP1546888A4 Digital content with information of latent value to purchaser and method for making the same |
| 08/14/2007 | US7257710 Additional-data embedding apparatus and additional-data embedding method |
| 08/01/2007 | EP1088296B1 Method for data preparation and watermark insertion |
| 07/26/2007 | US20070174634 System and/or method for encrypting data |
| 07/25/2007 | EP1811419A2 Digital content management system using electronic watermark |
| 07/25/2007 | CN2925891Y Two-dimensional matrix-code anti-fogery seal |
| 07/24/2007 | US7248784 Signal conversion apparatus and method |
| 07/19/2007 | US20070165261 Tampering detection apparatus and tampering detection method for printed document |
| 07/18/2007 | CN1327373C Method of protecting and managing digital contents and system for using thereof |
| 07/11/2007 | EP1806673A2 Digital content management system using electronic watermark |
| 07/10/2007 | US7242851 Playback apparatus, playback method, and program product with playback processing program |
| 07/10/2007 | US7242790 Video steganography |
| 07/10/2007 | US7242767 Recording medium, data recording method and apparatus, data regenerating method and apparatus, and copy control method |
| 07/05/2007 | US20070154064 Watermarking Compressed Data |
| 07/03/2007 | US7240207 Fingerprinting media entities employing fingerprint algorithms and bit-to-bit comparisons |
| 07/03/2007 | US7240206 Information signal copy managing method, information signal recording method, information signal output apparatus, and recording medium |
| 06/20/2007 | EP1243126B1 Methods and Apparatus for detecting unauthorized copies of digital objects on the basis of fingerprinting |
| 06/19/2007 | US7233662 Numerical array output device, a numerical array output method, an encryption device, and a decryption device |
| 06/14/2007 | US20070133793 Data processor and data processing method |
| 06/12/2007 | US7231657 User authentication system and methods thereof |
| 06/12/2007 | US7231522 Information processing apparatus, method for controlling the same, and storage medium |
| 06/12/2007 | US7231062 Image processing apparatus, image processing system, electronic information apparatus, image processing method, control program, and computer-readable recording medium |
| 06/12/2007 | US7231042 Signal transmission apparatus and signal transmission method |
| 06/05/2007 | US7228428 Method and apparatus for embedding encrypted images of signatures and other data on checks |
| 06/05/2007 | US7228425 Protecting content from illicit reproduction by proof of existence of a complete data set via self-referencing sections |
| 05/29/2007 | US7224820 Electronic document, genuineness management method for print medium thereof, genuineness management system, program, and program recording medium |
| 05/23/2007 | EP1787240A2 Systems and methods for authenticating objects using multiple-level image encoding and decoding |
| 05/22/2007 | US7222237 Secure multimedia data transmission method |
| 05/22/2007 | US7222235 Image processing system utilizing digital watermarks in predetermined regions |
| 05/22/2007 | US7221760 Information security using digital holography |
| 05/22/2007 | US7221512 Light control material for displaying color information, and images |
| 05/22/2007 | US7221391 Image sensing apparatus, image processing apparatus and method, and image processing system |
| 05/17/2007 | US20070110235 Method and system for authenticating appraisal reports |
| 05/15/2007 | US7218785 Systems for spectral multiplexing of source images to provide a composite image, for rendering the composite image, and for spectral demultiplexing of the composite image |
| 05/10/2007 | US20070106901 Parallel distribution and fingerprinting of digital content |
| 05/08/2007 | US7215793 Electronic image-capturing apparatus having function for verifying user |
| 05/08/2007 | US7215792 Systems for spectral multiplexing of source images to provide a composite image with gray component replacement, for rendering the composite image, and for spectral demultiplexing of the composite image |
| 05/02/2007 | EP1780682A1 Moiré-based autostereoscopic watermarks |
| 05/02/2007 | EP1780681A1 Moiré-based autostereoscopic images by duplex printing on transparencies |
| 05/01/2007 | US7212649 Encoder and encoding method for electronic watermark, decoder and decoding method for electronic watermark, encoding and decoding program for electronic watermark, and recording medium for recording such program |
| 04/26/2007 | WO2007045818A1 Methods and apparatus for encrypting, obfuscating and reconstructing datasets or objects |
| 04/26/2007 | CA2626264A1 Methods and apparatus for encrypting, obfuscating and reconstructing datasets or objects |
| 04/24/2007 | US7209557 Apparatus and method for computer screen security |
| 04/19/2007 | WO2007041816A2 Combination system of variable passwords |
| 04/19/2007 | US20070086619 Hiding codes in Input Data |
| 04/19/2007 | US20070085898 Printied product and method for the production thereof |
| 04/17/2007 | US7206432 Extracting embedded information from digital image data |
| 04/10/2007 | US7203968 Method and apparatus for selectively executing information recording using a cognizant mode and a non-cognizant mode |
| 04/10/2007 | US7202960 Print sheet original authentication system, printer device and checking device |
| 04/05/2007 | US20070079129 Theft resistant graphics |
| 04/05/2007 | US20070076869 Digital goods representation based upon matrix invariants using non-negative matrix factorizations |
| 04/05/2007 | US20070076868 Method and apparatus for image encryption and embedding and related applications |
| 04/03/2007 | US7200751 Watermark system |
| 04/03/2007 | US7200244 Systems for fingerprinting digital data |
| 04/03/2007 | US7200242 Image processing apparatus and method, computer program, and computer-readable storage medium |
| 04/03/2007 | US7200231 Information processing system, information processing apparatus, and computer-readable recording medium |
| 03/28/2007 | EP1768414A2 Contents forming method and contents reproducing apparatus and method |
| 03/28/2007 | EP1297492B1 Watermark embedding method and arrangement |