| Patents for G09C 1 - Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system (12,544) |
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| 02/04/2004 | EP1386224A1 Polynomial arithmetic operations |
| 02/04/2004 | EP1129438B1 Authenticating method between a smart card and a terminal |
| 02/04/2004 | CN1473430A Mixed-media telecommunication call set-up |
| 02/04/2004 | CN1473332A Information recording device information reproducing device, information recording mehtod, information reproducing method and computer program |
| 02/04/2004 | CN1472910A Transmitting device and receiving device |
| 02/03/2004 | US6687683 Production protection system dealing with contents that are digital production |
| 01/29/2004 | WO2004010661A1 System, method and computer product for delivery and receipt of s/mime encrypted data |
| 01/29/2004 | WO2004010639A1 Reactive system safety verification device, method, program, and recording medium containing the program |
| 01/29/2004 | WO2004010635A1 Electronic tally generation method and program |
| 01/29/2004 | WO2004010634A1 Electronic information transmission system |
| 01/29/2004 | US20040019801 Secure content sharing in digital rights management |
| 01/29/2004 | US20040019796 System and method for firmware authentication |
| 01/29/2004 | US20040019793 Encryption apparatus |
| 01/29/2004 | US20040019790 IC card, portable terminal, and access control method |
| 01/29/2004 | US20040019780 System, method and computer product for delivery and receipt of S/MIME encrypted data |
| 01/29/2004 | US20040017518 High-resolution image projection |
| 01/28/2004 | EP1385078A2 Program development method, program development supporting system, and program installation method |
| 01/28/2004 | CN1471665A Speed enhanced cryptographic method and apparatus |
| 01/28/2004 | CN1136512C Method of token verification in key management system |
| 01/27/2004 | US6684389 Compiler that decrypts encrypted source code |
| 01/27/2004 | US6684200 Cashless vending machine |
| 01/27/2004 | US6684198 Program data distribution via open network |
| 01/27/2004 | US6683953 Encoding method, encoding-decoding apparatus, and code communications system |
| 01/22/2004 | WO2004008684A1 False alteration prevention signature method |
| 01/22/2004 | WO2002056161A3 System of databases of personal data and a method of governing access to databases of personal data |
| 01/22/2004 | US20040015958 Method and system for conditional installation and execution of services in a secure computing environment |
| 01/22/2004 | US20040015948 Data for processing method and its apparatus |
| 01/22/2004 | US20040015713 Data transfer system, data transfer apparatus, data-recording apparatus, data management method, identifier generation method |
| 01/22/2004 | US20040015707 Control system for protecting external program codes |
| 01/22/2004 | US20040015705 Method for secure biometric authentication/identification, biometric data input module and verfication module |
| 01/22/2004 | US20040015448 Charging system and charging method |
| 01/22/2004 | US20040015446 Usage rights grammar and digital works having usage rights created with the grammar |
| 01/22/2004 | US20040015437 System for providing information using medium indicative of effective term and authorization of charged internet site and settling accounts for use of provided information |
| 01/22/2004 | US20040015363 Audio watermarking to convey auxiliary information, and media employing same |
| 01/22/2004 | US20040015362 Methods for decoding watermark data from audio, and controlling audio devices in accordance therewith |
| 01/22/2004 | US20040014505 Method of saving power by reducing active reception time in standby mode |
| 01/22/2004 | DE10229976A1 Verfahren zur Ver- und Entschlüsselung von nach dem Verfahren der priorisierten Pixelübertragung übertragenen oder gespeicherten digitalen Daten A method for encryption and decryption of information transmitted or stored by the process of prioritized pixel transfer digital data |
| 01/21/2004 | EP1383328A2 Transmission apparatus and receiving apparatus using encryption |
| 01/21/2004 | EP1383266A1 Personal authentication system, portable electronic device, terminal and authentication method |
| 01/21/2004 | EP1383073A1 Data processing system, memory device, data processor, data processing method, and program |
| 01/21/2004 | EP1382021A1 Financial information input method using symmetrical key security algorithm and commercial transaction system for mobile communications |
| 01/21/2004 | EP1381993A2 Method and apparatus for establishing usage rights for digital content to be created in the future |
| 01/21/2004 | EP1275112B1 Method for secure transmission of data |
| 01/21/2004 | EP0788688B1 Method and apparatus for secure identification of a mobile user in a communication network |
| 01/21/2004 | CN1470112A Cryptographic data security system and method |
| 01/21/2004 | CN1469580A IC card and encrypted communication method between IC cards thereof |
| 01/21/2004 | CN1469470A Control system for protecting external program code |
| 01/21/2004 | CN1469272A Digital content issuing system and digital content issuing method |
| 01/21/2004 | CN1135784C Apparatus for generating safety electronic signatures |
| 01/21/2004 | CN1135490C Data acquiring apparatus |
| 01/15/2004 | WO2004006582A2 Method for coding and decoding digital data stored or transmitted according to the pixels method for transmitting prioritised pixels |
| 01/15/2004 | WO2004006579A1 Content and key distribution system for digital content representing media streams |
| 01/15/2004 | WO2004006559A2 Secure presentation of encrypted digital content |
| 01/15/2004 | WO2004006495A1 A method and a system for biometric identification or verification |
| 01/15/2004 | WO2004006494A1 Parallel distribution and fingerprinting of digital content |
| 01/15/2004 | WO2004006151A1 Electronic price table server and system |
| 01/15/2004 | WO2003034190A3 Secure content distribution method and system |
| 01/15/2004 | WO2003025722A3 Virus detection system |
| 01/15/2004 | US20040010694 Parallel distribution and fingerprinting of digital content |
| 01/15/2004 | US20040010692 Detecting collusion among multiple recipients of fingerprinted information |
| 01/15/2004 | US20040010526 Random number generator and method for generating a random number |
| 01/15/2004 | US20040010468 Data transfer system, data transfer apparatus, data recording apparatus, data transfer method |
| 01/15/2004 | CA2491059A1 A method and a system for biometric identification or verification |
| 01/14/2004 | EP1381183A1 Message authentication device |
| 01/14/2004 | EP1381044A2 Recording and reproducing system, recording apparatus and reproducing apparatus having copy protection function |
| 01/14/2004 | EP1381011A1 Data securing communication apparatus and method |
| 01/14/2004 | EP1379936A2 Content security layer providing long-term renewable security |
| 01/14/2004 | EP1379930A2 Security system for preventing a personal computer from being used by unauthorized people |
| 01/14/2004 | EP0962069B1 Cryptographic system comprising a ciphering and deciphering system and a key escrow system |
| 01/14/2004 | EP0845733B1 Implementing digital signatures for data streams and data archives |
| 01/14/2004 | CN1468479A Method for proving the authenticity or integrity of a message by means of a public exponent equal to the power of two |
| 01/14/2004 | CN1467947A Electronic value data communication method and system, ic cards, portable terminal and communication terminal |
| 01/14/2004 | CN1467662A Cipher combined false proof method for commodity |
| 01/08/2004 | WO2003071808A3 Flexible storage of media information |
| 01/08/2004 | US20040006714 Method and system for veryfying the authenticity of a first communication participants in a communications network |
| 01/08/2004 | US20040006703 Information processing apparatus, program loading method, recording medium, program updating method and circuit device |
| 01/08/2004 | US20040006695 Data processing system, memory device, data processor, data processing method, and program |
| 01/08/2004 | US20040005060 Certification method using variable encryption key system based on encryption key of certification medium and inherent information of computer hardware, and certification medium for storing the same and indicating effective term and authorization thereof |
| 01/08/2004 | US20040005053 Cryptographical pseudo-random number generation apparatus and program |
| 01/08/2004 | US20040004609 Display device and methods of manufacture and control |
| 01/08/2004 | US20040004115 Usage dependent ticket to protect copy-protected material |
| 01/08/2004 | US20040004114 Usage dependent ticket to protect copy-protected material |
| 01/07/2004 | EP1378903A1 Data transfer system, data transfer apparatus, data recording apparatis, and data trasfer method |
| 01/07/2004 | EP1378854A1 Signal statistics determination |
| 01/07/2004 | EP1378812A2 Using a rights template to obtain a signed rights label (SRL) for digital content in a digital rights management system |
| 01/07/2004 | EP1378811A2 Systems and methods for issuing usage licenses for digital content and services |
| 01/07/2004 | EP1378092A2 System and method for message encryption and signing in a transaction processingsystem |
| 01/07/2004 | EP1377980A2 Content recording/playback apparatus, and recording medium storing program for content recording/playback |
| 01/07/2004 | EP1377890A2 Computer system protection |
| 01/07/2004 | EP1046168A4 Electronic bookshelf with multi-user features |
| 01/07/2004 | CN1466830A Cryptography private key storage and recovery method and apparatus |
| 01/07/2004 | CN1466097A Coding method for digital registration and veritication identification |
| 01/07/2004 | CN1134200C Integrity protection method for radio network signaling |
| 01/06/2004 | US6675146 Audio steganography |
| 01/06/2004 | US6675113 Monobit-run frequency on-line randomness test |
| 01/02/2004 | EP1376980A1 Secure server plug-in architecture for digital rights management systems |
| 01/02/2004 | EP1376976A1 Methods for authenticating potential members invited to join a group |
| 01/02/2004 | EP1376922A1 Encrypting device |
| 01/02/2004 | EP1376424A1 Content distribution system |
| 01/02/2004 | EP1376371A1 Data storage apparatus |