| Patents for H04K 1 - Secret communication (16,771) |
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| 09/02/2009 | CN101523786A System and method for rights propagation and license management in conjunction with distribution of digital content in a social network |
| 09/02/2009 | CN100536366C Transmit processing using receiver functions |
| 09/01/2009 | US7584365 Storage system |
| 09/01/2009 | US7584359 Secure media peripheral association in a media exchange network |
| 09/01/2009 | US7584149 System and method for securing data through a PDA portal |
| 09/01/2009 | US7583814 Protecting images with an image watermark |
| 09/01/2009 | US7583800 Encryption apparatus and method in a wireless communications system |
| 09/01/2009 | US7583754 Method and system for broadband predistortion linearization |
| 09/01/2009 | US7583753 Methods and transmitters for loop-back adaptive pre-emphasis data transmission |
| 09/01/2009 | US7583742 Multi-band DMT receiver |
| 09/01/2009 | US7583740 Apparatus and method for tracking sampling clock in multi-carrier communication system |
| 09/01/2009 | US7583739 Channel estimation device, channel estimation method, and wireless receiver |
| 09/01/2009 | US7583738 Apparatus and method for reducing peak-to-average power ratio in orthogonal frequency division multiplexing communication system |
| 09/01/2009 | US7583737 OFDM signal receiver device and OFDM signal receiving method |
| 09/01/2009 | US7583736 Radio transmission device, radio reception device, and method for selecting transmission cancellation subcarriers |
| 08/27/2009 | WO2009105769A1 System and method for authorizing limited access |
| 08/27/2009 | WO2009105653A1 Methods to advance loan proceeds on prepaid cards, associatated systems and computer program products |
| 08/27/2009 | WO2009104827A1 Method and apparatus for generating key stream for stream cipher, s-box for block cipher and method for substituting input vector using the s-box |
| 08/27/2009 | WO2009104234A1 Wireless device, wireless system, and method for confidential communication |
| 08/27/2009 | US20090217033 Short Authentication Procedure In Wireless Data Communications Networks |
| 08/27/2009 | US20090214038 Security-enhanced rfid system |
| 08/27/2009 | US20090214036 Authentication mechanisms for wireless networks |
| 08/27/2009 | US20090214035 Method and apparatus for secure communication in a digital two way radio protocol |
| 08/27/2009 | US20090213946 Partial reconfiguration for a mimo-ofdm communication system |
| 08/26/2009 | EP2092674A2 Secure password distribution to a client device of a network |
| 08/26/2009 | CN101516635A Anti-counterfeit packaging |
| 08/26/2009 | CN100533368C Controlling access to an area |
| 08/26/2009 | CN100533330C External locking mechanism for personal computer memory locations |
| 08/25/2009 | US7581242 Authenticating products |
| 08/25/2009 | US7581013 Method for computer network operation providing basis for usage fees |
| 08/25/2009 | US7580686 Adaptive predistortion method and arrangement |
| 08/25/2009 | US7580528 Secure terminal data loader apparatus and method for a mobile platform |
| 08/25/2009 | US7580527 Communication monitoring in a mobile radio network |
| 08/25/2009 | US7580526 Methods and apparatus for protecting signals transmitted between a source and destination device over multiple signals lines |
| 08/25/2009 | US7580525 Sub-scrambling/descrambling method and sub-scrambling/descrambling device |
| 08/25/2009 | US7580524 Method and apparatus for synchronizing the emitter and the receiver in an autocompensating quantum cryptography system |
| 08/25/2009 | US7580468 Synchronization circuits, orthogonal frequency division multiplexing (OFDM) receivers, and related methods and computer program products |
| 08/25/2009 | US7580467 System and method for multiple signal carrier time domain channel estimation |
| 08/25/2009 | US7580466 Demodulation device and demodulation method |
| 08/25/2009 | US7580347 Synchronization of remote units using multiple adjustments |
| 08/20/2009 | WO2009102523A1 Portable computing system, apparatus and method |
| 08/20/2009 | WO2007011787A9 System and method for immediate issuance of transaction cards |
| 08/20/2009 | US20090207927 Receiving apparatus |
| 08/20/2009 | US20090207926 Orthogonal frequency division multiplexing using subsymbol processing |
| 08/19/2009 | EP2090009A2 Software license management |
| 08/19/2009 | EP2090008A1 Method and system for adapting pre-defined rights of a digital content |
| 08/19/2009 | CN101513059A Method, device and system of encrypted wireless communication |
| 08/19/2009 | CN101512946A Enhanced channel estimation for communication system receiver |
| 08/18/2009 | US7578001 Information recording and reproducing apparatus, information recording and reproducing method and information recording and reproducing program |
| 08/18/2009 | US7577986 Security objects controlling access to resources |
| 08/18/2009 | US7577621 Cryptographic server with provisions for interoperability between cryptographic systems |
| 08/18/2009 | US7577256 Counter initialization, particularly for radio frames |
| 08/18/2009 | US7577255 Proxy method and system for secure wireless administration of managed entities |
| 08/18/2009 | US7577214 OFDM signal receiver and receiving method |
| 08/18/2009 | US7577211 Digital predistortion system and method for linearizing an RF power amplifier with nonlinear gain characteristics and memory effects |
| 08/18/2009 | US7577206 OFDM signal receiving apparatus and method for estimating common phase error of OFDM signals using data subcarriers |
| 08/18/2009 | US7577186 Interference matrix construction |
| 08/18/2009 | US7577085 Multicarrier transmit diversity |
| 08/13/2009 | WO2009100220A2 Discontinuous transmission signaling over an uplink control channel |
| 08/13/2009 | US20090204819 Advertisement-based human interactive proof |
| 08/13/2009 | US20090202076 Communications System via Data Scrambling and Associated Methods |
| 08/13/2009 | US20090202074 QKD station with EMI signature suppression |
| 08/13/2009 | US20090202073 Random wave envelope derived random numbers and their use in generating transient keys in communication security applications part II |
| 08/13/2009 | US20090202066 Scrambler, scramble processing method, and program |
| 08/13/2009 | US20090202065 Scrambler, scramble processing method, and program |
| 08/13/2009 | US20090202013 Wireless communication network and method for extended-range uplink communications |
| 08/13/2009 | US20090202009 Wireless communications apparatus |
| 08/13/2009 | US20090202008 Wireless communication apparatus |
| 08/13/2009 | US20090201978 System and Method for Processing Secure Transmissions |
| 08/13/2009 | CA2712915A1 Discontinuous transmission signaling over an uplink control channel |
| 08/12/2009 | EP2088705A1 System and method for protecting data streams in hardware components |
| 08/11/2009 | US7574731 Self-managed network access using localized access management |
| 08/11/2009 | US7574720 Data transmitting method, data transmitting system, data receiving method and receiving terminal |
| 08/11/2009 | US7574609 Method, device and computer program for detecting point correspondences in sets of points |
| 08/11/2009 | US7574608 Security screening of electronic devices by device-reported data |
| 08/11/2009 | US7574407 System and method for selecting, ordering and accessing copyrighted information from physical documents |
| 08/11/2009 | US7574198 Security setting system |
| 08/11/2009 | US7573947 Simplified narrowband excision |
| 08/11/2009 | US7573943 Interference cancellation system |
| 08/06/2009 | WO2009097178A1 Wireless network systems having accessibility based on usage of an account |
| 08/06/2009 | WO2009096963A1 Biometric authorization of electronic payments |
| 08/06/2009 | US20090199015 Method for protecting audio content |
| 08/06/2009 | US20090196427 System and computer program product for protecting audio content |
| 08/06/2009 | US20090196420 Cryptographic system incorporating a digitally generated chaotic numerical sequence |
| 08/06/2009 | US20090196419 Quantum Cryptography Apparatus |
| 08/06/2009 | US20090196364 Radio communication device, radio communication method, and program |
| 08/06/2009 | US20090196359 Methods and systems to insert filler data in unallocated resource regions of a frame |
| 08/05/2009 | EP2084843A2 Biometric systems |
| 08/05/2009 | EP2039037A4 Enforced seat-based licensing |
| 08/05/2009 | EP1747548A4 System and method for enforcing privacy in social networks |
| 08/05/2009 | EP1704666A4 Method and system for controlling encoded image production using image signatures |
| 08/05/2009 | EP1654827A4 System, method, apparatus and computer program product for facilitating digital communications |
| 08/05/2009 | EP1502221A4 Rights management system using legality expression language |
| 08/05/2009 | CN101502031A Verification error reduction system |
| 08/05/2009 | CN101501708A Transaction instruments with enhanced security PIN and expiration date generation |
| 08/04/2009 | US7571490 Method and apparatus for protecting data from unauthorized modification |
| 08/04/2009 | US7571488 Rights management terminal, server apparatus and usage information collection system |
| 08/04/2009 | US7571326 Relative latency dynamics for identity authentication |
| 08/04/2009 | US7571324 Method and device for anonymous signature with a shared private key |
| 08/04/2009 | US7571315 Method and apparatus to assign trust to a key |