Patents for H04K 1 - Secret communication (16,771)
02/2005
02/15/2005US6856687 Portable telecommunication security device
02/15/2005US6856686 Method and apparatus for securing e-mail attachments
02/10/2005WO2005013539A2 Method and apparatus for secure communications among portable communication devices
02/10/2005WO2005013410A2 Enhanced holographic communications apparatus and method
02/10/2005US20050033699 Method of embedding permanent identification code into musical apparatus
02/10/2005US20050031156 Video steganography
02/10/2005US20050031125 Global-positioning-system data integrator and distribution system
02/10/2005US20050031124 Ciphering between a CDMA network and a GSM network
02/10/2005US20050031123 Block encoding/decoding method, circuit, and device
02/10/2005US20050031119 Method and communications device for secure group communication
02/10/2005US20050031060 Interference matrix construction
02/10/2005US20050031051 Multiple access holographic communications apparatus and methods
02/10/2005US20050031017 Circuit arrangement having a transmitter and a receiver
02/10/2005US20050029395 Hot-start navigation information distribution system
02/10/2005DE102004030849A1 Secret data e.g. encryption key data, transmitting method for e.g. WLAN, involves transmitting signal with data sequence multiplied with inverse of transfer function to compensate for transmission medium and terminal distortion
02/10/2005CA2534741A1 Enhanced holographic communications apparatus and method
02/09/2005EP1505763A1 Encryption device and decryption device
02/09/2005EP1505476A2 Method of embedding permanent identification code into musical apparatus
02/09/2005CN1578457A Individual video encryption system and method
02/08/2005US6853985 Media information distribution and recording system, and apparatus and program-recorded medium for the system
02/03/2005WO2005011226A1 Apparatus and method for multicarrier transmission / reception with transmission quality evaluation
02/03/2005WO2005010694A2 Method and apparatus for distributing media in a pay per play architecture with remote playback
02/03/2005WO2005010688A2 Controlling access using additional data
02/03/2005WO2005010687A2 Logging access attempts to an area
02/03/2005WO2005010686A2 Disseminating additional data used for controlling access
02/03/2005WO2005010685A2 Controlling access to an area
02/03/2005WO2005010649A2 Managing an electronic seal of certification
02/03/2005WO2004112302A3 Dynamic service delivery with topology discovery for communication networks
02/03/2005WO2004104780A3 Method and system for providing fraud detection for remote access services
02/03/2005US20050027990 Authentication apparatus, authentication method, and program
02/03/2005US20050025315 Method and apparatus for secure communications among portable communication devices
02/03/2005CA2531518A1 Controlling access to an area
02/02/2005EP1502360A1 Burst-mode combining of reverse path radio frequency signals
02/02/2005EP1502221A1 Rights management system using legality expression language
02/02/2005CN1575006A Authentication system and id generator
02/02/2005CN1574726A Content transmitting device, content receiving device and content transmitting method
02/02/2005CN1574702A Slot synchronization for a wcdma system
02/01/2005US6851063 Digital video recorder employing a file system encrypted using a pseudo-random sequence generated from a unique ID
02/01/2005US6850782 Wireless device with vibrational communication capabilities
02/01/2005US6850252 Intelligent electronic appliance system and method
01/2005
01/27/2005WO2005009026A1 Image alignment
01/27/2005WO2005008999A1 Hardware acceleration for diffie hellman in a wireless lan
01/27/2005WO2005008831A2 System and method for rf signal combining and adaptive bit loading for data rate maximization in multi-antenna communication systems
01/27/2005WO2005008582A2 Methods and apparatus for embedding watermarks
01/27/2005WO2005008399A2 Systems and methods for facilitating transactions
01/27/2005WO2005008382A2 Methods and apparatus for building a complete data protection scheme
01/27/2005WO2004046862A3 System and method for granting access to an item or permission to use an item based on configurable conditions
01/27/2005US20050021987 Organization-based content rights management and systems, structures, and methods therefor
01/27/2005US20050021981 Administrative security systems and methods
01/27/2005US20050021978 Remote interface for policy decisions governing access control
01/27/2005US20050021977 Expression-based access control
01/27/2005US20050021975 Proxy based adaptive two factor authentication having automated enrollment
01/27/2005US20050021475 Electronic battery tester with relative test output
01/27/2005US20050018883 Systems and methods for facilitating transactions
01/27/2005US20050018784 Communication network system, and transmission/reception apparatus, method and integrated circuit for use therein
01/27/2005CA2534987A1 Systems and methods for facilitating transactions
01/26/2005EP1500224A1 System in a digital wireless data communication network for arranging end-to-end encryption and corresponding terminal equipment
01/26/2005EP1500007A1 Blind source separation utilizing a spatial fourth order cumulant matrix pencil
01/25/2005US6848050 System and method for alternative encryption techniques
01/25/2005US6847950 Contents managing method and contents managing apparatus
01/20/2005WO2004105326A3 Time-triggered communication system and method for the synchronized start of a dual-channel network
01/20/2005US20050015608 Method for strongly encrypting .ZIP files
01/20/2005US20050015601 Methods, systems, and media to authenticate a user
01/20/2005US20050015343 License management device, license management method, and computer program
01/20/2005US20050013385 Carrier suppression type modulator with encoded modulating signals
01/20/2005US20050013381 Apparatus and method for transmitting/receiving preamble sequence in orthogonal frequency division multiplexing communication system using plurality of transmission antennas
01/20/2005CA2531502A1 Method and apparatus for security in a data processing system
01/19/2005EP1499062A1 Individual video encryption system and method
01/19/2005EP1499061A1 Individual video encryption system and method
01/19/2005EP1497006A1 Authentication in a secure computerized gaming system
01/19/2005CN1568597A Encrypting, decoding, and wireless communication device
01/19/2005CN1568087A Method of communication among a variety of classification mobile terminals
01/19/2005CN1567859A A method of access authentication for WLAN
01/19/2005CN1567792A Transmission method for encrypting voice data in CDMA system
01/19/2005CN1567755A A method for establishing connection between monitoring console and apparatus under monitoring
01/16/2005CA2473481A1 Method for strongly encrypting .zip files
01/13/2005US20050010783 Access control
01/13/2005US20050010782 Authentication system and ID generator
01/13/2005US20050010781 Extranet service site and method for using same
01/13/2005US20050010777 Apparatus and method for multiple function authentication device
01/13/2005US20050010529 Method and apparatus for building a complete data protection scheme
01/13/2005US20050010528 Method for controlling access to a resource of an application in a data-processing device
01/13/2005US20050010443 Methods for online clinical trial recruiting
01/13/2005US20050008161 Programmable scrambler and de-scrambler for digital telephony equipment
01/13/2005US20050008157 Method and system for transmitting secret data in a communication network
01/13/2005US20050008154 Random number generation for encrypting cellular communications
01/13/2005US20050008130 Information processing system, information processor, information processing method, receiver, receiving method, and program
01/13/2005US20050008087 Tri-state integer cycle modulation
01/12/2005EP1496421A2 Apparatus and method for performing transparent block cipher cryptographic functions
01/12/2005CN1564564A Setup method and device for chaos secret telephone
01/12/2005CN1564541A Communication system and communication control apparatus and method
01/12/2005CN1564504A Chaos coding/decoding method of data stream and modularized circuit
01/12/2005CN1564503A Signal hiding encryption/deciphering method and appts. based on virtual holographic series
01/12/2005CN1564227A Multi-state coding method
01/12/2005CN1184767C Digitally signing agreements from remotely located nodes
01/06/2005WO2005002200A2 Methods and apparatus for embedding watermarks
01/06/2005WO2005002122A2 Tri-state integer cycle modulation
01/06/2005WO2005001668A2 Dynamic indicator for context sensitive real-time communications
01/06/2005WO2005001653A2 Access control
01/06/2005WO2004099914A3 Extranet service site and method for using same