| Patents for H04K 1 - Secret communication (16,771) |
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| 09/07/2005 | CN1666207A Rights management system using legality expression language |
| 09/07/2005 | CN1665180A Data processing circuit and control method therefor |
| 09/06/2005 | US6941472 System and method for maintaining security in a distributed computer network |
| 09/06/2005 | US6941457 Establishing a new shared secret key over a broadcast channel for a multicast group based on an old shared secret key |
| 09/06/2005 | US6940841 Packet-switched spread-spectrum system |
| 09/01/2005 | WO2005081486A1 Method and apparatus providing time domain interpolated channel estimation with advanced noise suppression for multicarrier transmissions |
| 09/01/2005 | WO2005081440A1 Network virtual computing devices and framework |
| 09/01/2005 | WO2005079526A2 Method and system for using watermarks in communication systems |
| 09/01/2005 | WO2005079459A2 Ip for switch based acl's |
| 09/01/2005 | US20050193205 Method and system for session based watermarking of encrypted content |
| 09/01/2005 | US20050192905 Licensing method for an electronic file |
| 09/01/2005 | US20050190923 Encryption/decryption system and key scheduler with variable key length |
| 09/01/2005 | US20050190920 System in a digital wireless data communication network for arranging end-to-end encryption and corresponding terminal equipment |
| 09/01/2005 | US20050190918 Methods and apparatus for automatically grouping user-specific information in a mobile station |
| 09/01/2005 | US20050190915 System and method for using a streaming protocol |
| 09/01/2005 | US20050190911 System and method for using a streaming protocol |
| 09/01/2005 | US20050190858 Apparatus and method for reducing peak-to-average power ratio in a CDMA communication system |
| 09/01/2005 | US20050190857 Digital predistortion system and method for linearizing an RF power amplifier with nonlinear gain characteristics and memory effects |
| 09/01/2005 | US20050190856 Transmission arrangement, particularly for mobile radio |
| 09/01/2005 | US20050190855 Method and apparatus for optimizing transmitter power efficiency |
| 09/01/2005 | US20050190848 OFDM transceiver apparatus |
| 09/01/2005 | CA2556549A1 Ip for switch based acl's |
| 09/01/2005 | CA2556428A1 Network virtual computing devices and framework |
| 08/31/2005 | CN1663173A Information processing method, information processing apparatus, program, and storage medium |
| 08/31/2005 | CN1661956A Content distribution service providing system and content distribution device and user terminal device thereof |
| 08/31/2005 | CN1217509C Content data storage |
| 08/30/2005 | US6937665 Method and apparatus for multi-user transmission |
| 08/25/2005 | WO2005078964A1 Apparatus and method for allocating ovsf codes and i/q channels for reducing peak-to-average power ratio in transmitting data via enhanced up-link dedicated channels in wcdma systems |
| 08/25/2005 | WO2005062919A3 Public key encryption for groups |
| 08/25/2005 | WO2005046253A3 Channel condition estimation for pilot coefficient selection |
| 08/25/2005 | WO2005043361A3 Secure document access method and apparatus |
| 08/25/2005 | WO2005008831A3 System and method for rf signal combining and adaptive bit loading for data rate maximization in multi-antenna communication systems |
| 08/25/2005 | US20050188229 Data transmission system |
| 08/25/2005 | US20050188211 IP for switch based ACL's |
| 08/25/2005 | US20050188209 Circuits and methods for modular exponentiation |
| 08/25/2005 | US20050188208 Method and system for protecting user choices |
| 08/25/2005 | US20050187878 Managing an electronic seal of certification |
| 08/25/2005 | US20050187843 Tokenless biometric electronic financial transactions via a third party identicator |
| 08/25/2005 | US20050185793 System and method for secured scrambling of audio flux |
| 08/25/2005 | US20050185792 Data processing apparatus for digital copyrights management |
| 08/25/2005 | US20050185726 Multicarrier transmission system with low power sleep mode and rapid-on capability |
| 08/25/2005 | US20050185724 Method and apparatus providing time domain interpolated channel estimation with advanced noise suppression for multicarrier transmissions |
| 08/25/2005 | US20050185723 Peak suppression of multi-carrier signal with different modulation |
| 08/25/2005 | DE102005005335A1 Vorrichtung und Verfahren zur Hardware-Verschlüsselung Apparatus and method for hardware encryption |
| 08/25/2005 | DE102004004799A1 Hardware/Software-Partitionierung für verschlüsselte WLAN-Verbindungen Hardware / software partitioning for encrypted wireless |
| 08/24/2005 | CN1659872A Method and apparatus for processing a stream that contains encrypted information |
| 08/24/2005 | CN1659559A System and method for specifying and processing legality expressions |
| 08/23/2005 | US6934388 Method and apparatus for generating random permutations |
| 08/23/2005 | CA2265937C Simultaneous plural code series generator and cdma radio receiver using same |
| 08/18/2005 | WO2005076515A1 On-chip storage, creation, and manipulation of an encryption key |
| 08/18/2005 | WO2005074597A2 System and method for protecting digital works using a watermark gateway |
| 08/18/2005 | WO2005074391A2 Two-dimensional code, two-dimensional code forming device and method, two-dimensional code reading device and method, information verification system, and information verifying method |
| 08/18/2005 | US20050182974 Method and apparatus for ejecting a recording medium from a storage unit detachable from host equipment |
| 08/18/2005 | US20050182963 Administrative security systems and methods |
| 08/18/2005 | US20050182947 Biometric security assembly |
| 08/18/2005 | US20050182946 Fast hashing function for pseudo-random generator |
| 08/18/2005 | US20050182945 Computer security system and method |
| 08/18/2005 | US20050182943 Methods and devices for obtaining and forwarding domain access rights for nodes moving as a group |
| 08/18/2005 | US20050182942 Methods and devices for obtaining domain access rights |
| 08/18/2005 | US20050182936 Key agreement and transport protocol with implicit signatures |
| 08/18/2005 | US20050182729 Method of preventing counterfeiting |
| 08/18/2005 | US20050182726 Network virtual computing devices and framework |
| 08/18/2005 | US20050180570 Method and system to validate periodically the visa of a foreign visitor during the visitor's in-country stay |
| 08/18/2005 | US20050180565 Cryptographic device and associated methods |
| 08/18/2005 | US20050180519 Digital subscriber line driver |
| 08/18/2005 | US20050180518 Preamble for estimation and equalization of asymmetries between inphase and quadrature branches in multicarrier transmission systems |
| 08/18/2005 | US20050180516 Symbol timing synchronization method for OFDM based communication system |
| 08/18/2005 | US20050180364 Construction of projection operators for interference cancellation |
| 08/18/2005 | US20050180253 Interface for facilitating facsimile transmissions via wireless communications networks |
| 08/17/2005 | EP1564952A2 Symbol timing synchronization method for OFDM based communication system |
| 08/17/2005 | EP1563656A1 Frequency domain equalization in communications systems with scrambling |
| 08/17/2005 | EP1563621A1 Method and apparatus for rake combining based upon signal to interference noise ratio |
| 08/17/2005 | CN1656485A Blind source separation utilizing a spatial fourth order cumulant matrix pencil |
| 08/17/2005 | CN1655544A Symbol timing synchronization method for OFDM based communication system |
| 08/16/2005 | US6931381 Methods and apparatus for authenticating the download of information onto a smart card |
| 08/16/2005 | US6931131 Method and apparatus for online geographic and user verification and restriction using a GPS system |
| 08/16/2005 | US6930989 Wide frequency offset correction using encoded interburst phase differences |
| 08/11/2005 | WO2005074121A1 Transmitter predistortion circuit and method therefor |
| 08/11/2005 | WO2005072491A2 Account protection with one sided access |
| 08/11/2005 | WO2005029746A3 System and method providing disconnected authentication |
| 08/11/2005 | WO2005025116A3 Management of digital content licenses |
| 08/11/2005 | WO2005018184A8 Modulation and encryption of a digital date stream, method of decoding, multi-carrier transmission system |
| 08/11/2005 | US20050177753 Set top box object security system |
| 08/11/2005 | US20050177735 Log-in security device |
| 08/11/2005 | US20050177732 Intersystem communications |
| 08/11/2005 | US20050177731 Secure management of authentication information |
| 08/11/2005 | US20050177730 System and method for authentication via a single sign-on server |
| 08/11/2005 | US20050177726 Method and system for controlling encoded image production using image signatures |
| 08/11/2005 | US20050175114 Wide frequency offset correction using encoded interburst phase differences |
| 08/11/2005 | US20050175113 Digital signal demodulation of an OFDM signal with error correction |
| 08/10/2005 | CN1653465A System and method for expressing usage rights using modulated signals |
| 08/10/2005 | CN1653463A Method and apparatus for processing usage rights expressions |
| 08/10/2005 | CN1653462A Rights expression profile system and method using templates and profiles |
| 08/10/2005 | CN1653431A System and method of secure garbage collection on a mobile device |
| 08/10/2005 | CN1652503A Data distribution system and data distribution apparatus |
| 08/10/2005 | CN1214561C Data transmission method user equipment and GPRS/EDGE radio access network |
| 08/09/2005 | US6928557 Method and apparatus for ejecting a recording medium from a storage unit detachable from host equipment |
| 08/09/2005 | US6928547 System and method for authenticating users in a computer network |
| 08/09/2005 | US6928167 Method for managing public key |
| 08/09/2005 | US6928103 Rach receiving apparatus |