Patents for H04K 1 - Secret communication (16,771)
06/2006
06/06/2006US7058139 Transmitter with transmitter chain phase adjustment on the basis of pre-stored phase information
06/06/2006US7058134 System and method for multiple signal carrier time domain channel estimation
06/01/2006WO2006058039A2 Electronic transaction verification system
06/01/2006WO2006057683A2 System and method of echo cancellation
06/01/2006WO2006028654A3 Systems and methods for receiving data in a wireless communication network
06/01/2006WO2006023334A3 Permutation data transform to enhance security
06/01/2006US20060117188 Biometric print quality assurance
06/01/2006US20060117187 Internet method of protecting subscriber information
06/01/2006US20060115089 Key distribution
06/01/2006US20060115088 Method and apparatus for end-to-end clear transport protocol
06/01/2006US20060115084 Conditional access for a multimedia broadcast service using a wireless terminal
06/01/2006US20060115080 Methods and apparatus for preventing a third party from overhearing a telephone conversation
06/01/2006US20060115030 Efficient reduced complexity windowed optimal time domain equalizer for discrete multitione-based DSL modems
06/01/2006US20060115012 Increased discrete point processing in an OFDM communication system
06/01/2006US20060115011 Orthogonal frequency division multiplexing (OFDM) receiver
06/01/2006US20060115010 Apparatus and method for reducing a peak to average power ratio in a multi-carrier communication system
06/01/2006US20060114976 System and method of echo cancellation
05/2006
05/31/2006EP1661355A1 Method and device for securing content delivery over a communication network via content keys
05/31/2006EP1661347A1 Method and system for transmission of information data over a communication line using filtered multi-tone modulation (fmt)
05/31/2006EP1661065A1 Feeder control system and method
05/31/2006EP1661054A2 Method and system for identity theft prevention, detection and victim assistance
05/31/2006EP1490819A4 System and method for expressing usage rights using modulated signals
05/31/2006EP0965195B1 Methods and apparatus for securely encrypting data in conjunction with a personal computer
05/31/2006CN1781271A Cost-effective multi-channel quadrature amplitude modulation
05/31/2006CN1780455A Estate performance statistical method
05/31/2006CN1780289A Method for transmitting and receiving data by building telecommunication in network speech telephone system
05/31/2006CN1258262C Signal peak reduction circuit for non-constant envelope modulation signals
05/30/2006US7054843 Method and apparatus in a telecommunications system
05/30/2006US7054465 Data hiding method and system for embedding and extracting information in signals
05/30/2006US7054444 Public and private key cryptographic method
05/30/2006US7054379 Data scrambler generation of pseudo-random bit sequence for semi-stationary Q-mode signal
05/30/2006US7054375 Method and apparatus for error reduction in an orthogonal modulation system
05/30/2006US7054354 Multicarrier transmission system with reduced complexity leakage matrix multiplication
05/30/2006US7054348 Using real random number generator as proof of time
05/30/2006US7051923 Method and system for providing interactive cardholder rewards image replacement
05/26/2006WO2006055827A2 Systems and methods for adaptive vdsl with variable sampling frequency and time-domain equalizer
05/26/2006WO2006055249A2 Ultra-wideband communication apparatus and methods
05/26/2006WO2006055046A2 Electronic chain of custody method and system
05/26/2006WO2006027769A3 Method and apparatus for securing data stored within a non-volatile memory
05/26/2006WO2006014842A3 System and method for secure network connectivity
05/26/2006CA2587846A1 Method and apparatus for combining space-frequency block coding, spatial multiplexing and beamforming in a mimo-ofdm system
05/25/2006US20060112434 Video on demand system with selectable options of configurable random-access control
05/25/2006US20060112433 System and method for controlling access to an electronic message recipient
05/25/2006US20060112280 Method and system for secure transmission of biometric data
05/25/2006US20060112279 Method and system for biometric identification and authentication having an exception mode
05/25/2006US20060112278 Method and system for biometric authentication of user feedback
05/25/2006US20060112277 High-speed password attacking device
05/25/2006US20060112276 Method for authenticating a user access request
05/25/2006US20060112275 Facilitating and authenticating transactions
05/25/2006US20060112019 System and method of authenticating licensed computer programs
05/25/2006US20060109984 Methods for audio watermarking and decoding
05/25/2006US20060109983 Signal masking and method thereof
05/25/2006US20060109926 Method and apparatus for transmitting data in a time division duplexed (TDD) communication system
05/25/2006US20060109925 Method and apparatus for error reduction in an orthogonal modulation system
05/25/2006US20060109924 Apparatus and method for signal transmission/reception according to pilot modulation in a multi-carrier communication system
05/25/2006US20060109923 Subcarrier cluster-based power control in wireless communications
05/25/2006US20060109922 Iterative channel and interference estimation with dedicated pilot tones for OFDMA
05/25/2006US20060109921 Combining coefficient estimation apparatus capable of compensating for phase noise of ofdm system and combining coefficient estimation method thereof
05/25/2006US20060109920 OFDM wireless receiver
05/25/2006US20060109919 Wireless communications device providing time and frequency-domain channel estimates interpolation and related methods
05/25/2006US20060109891 Reduced parallel and pipelined high-order MIMO LMMSE receiver architecture
05/24/2006EP1659721A1 Transmission device, transmission method, and storage medium
05/24/2006EP1658696A1 On-chip storage, creation, and manipulation of an encryption key
05/24/2006EP1483717A4 Rights expression profile system and method using templates and profiles
05/24/2006EP1371164A4 Theft resistant graphics
05/24/2006EP1018231B1 A data encryption system for internet communication
05/24/2006CN1778062A Time-multiplexed multi-program encryption system
05/23/2006US7051210 Persistance and recovery of security keys
05/23/2006US7051209 System and method for creation and use of strong passwords
05/23/2006US7050723 Laser oscillator, optical communication method and system
05/23/2006US7050587 Security device for guarding a vehicle
05/23/2006US7050583 Method and apparatus for streaming data using rotating cryptographic keys
05/23/2006US7050582 Pseudo-random one-to-one circuit synthesis
05/18/2006WO2006053280A2 Optical machine locking method and system
05/18/2006WO2006051741A1 Data transmitting apparatus
05/18/2006WO2005059799A3 Asset planning and tracking
05/18/2006US20060107331 Objective management apparatus, medium, and method with group organization
05/18/2006US20060107307 Object location based security using RFID
05/18/2006US20060107306 Tuning product policy using observed evidence of customer behavior
05/18/2006US20060107301 Video recorder unit and method of operation therefor
05/18/2006US20060107069 System and method for tokenless biometric electronic scrip
05/18/2006US20060107068 Method of generating access keys
05/18/2006US20060107067 Identification card with bio-sensor and user authentication method
05/18/2006US20060107066 Method for identification of person by recognition of a digital fingerprint
05/18/2006US20060107065 System that generates access keys
05/18/2006US20060107064 API for a system having a passcode authenticator
05/18/2006US20060107063 Generating requests for access to a passcode protected entity
05/18/2006US20060107062 Portable personal mass storage medium and information system with secure access to a user space via a network
05/18/2006US20060107052 Integrated Circuit Card with Situation Dependent Identity Authentication
05/18/2006US20060106727 Method and system for transferring software and hardware feature licenses between devices
05/18/2006US20060106718 Electronic chain of custody method and system
05/18/2006US20060104447 Discrete logarithm-based cryptography using the Shafarevich-Tate group
05/18/2006US20060104446 Online data encryption and decryption
05/18/2006US20060104445 Systems and methods for hiding a data group
05/18/2006US20060104439 Method and system for shifting key agreement status and information storage medium
05/18/2006US20060104381 Beam-steering and beam-forming for wideband MIMO/MISO systems
05/18/2006US20060104376 OFDM signal receiver and receiving method
05/18/2006US20060104375 Method and system for improving the quality of a radio signal
05/18/2006US20060104374 Mapping strategy for OFDM-based systems using H-ARQ
05/18/2006US20060104373 OFDM peak-to-average power ratio reduction by combined symbol rotation and inversion with limited complexity