Patents for H04K 1 - Secret communication (16,771)
07/2006
07/05/2006CN2794067Y Enciphering device of key signal in phonetic telecommunication tool
07/05/2006CN1799213A Ciphering between a CDMA network and a GSM network
07/05/2006CN1798059A Device and method for implementing switch between IP network and PSTN for users
07/04/2006US7073118 Apparatus and method for saturating decoder values
07/04/2006US7073067 Authentication system and method based upon random partial digitized path recognition
07/04/2006US7073061 Data transmission system
07/04/2006US7073060 Data transmission system
07/04/2006US7073000 Communication system and communication control apparatus and method
07/04/2006US7072493 Robust and stealthy video watermarking into regions of successive frames
07/04/2006US7072473 Method and system for secure delivery and retrieval of documents utilizing a facsimile machine
07/04/2006US7072411 Computation reduction in OFDM system using frequency domain processing
07/04/2006US7072410 Multiple access system and method for multibeam digital radio systems
06/2006
06/29/2006WO2006069158A2 Self-adaptive multimodal biometric authentication system and method
06/29/2006WO2006067688A1 Display device for visually reconstructing an image
06/29/2006WO2006066482A1 Apparatus and method of realizing user switching between ip network and pstn network
06/29/2006WO2006027271A3 Microphone system
06/29/2006US20060143716 Connection device restriction program and device
06/29/2006US20060143685 Systems and processes for managing policy change in a distributed enterprise
06/29/2006US20060143477 User identification and data fingerprinting/authentication
06/29/2006US20060143471 Personal authentication apparatus
06/29/2006US20060143470 Personal authentication apparatus
06/29/2006US20060143469 Method for identification a user, especially for process automation engineering devices
06/29/2006US20060140410 Wireless communication device and wireless communication method
06/29/2006US20060140409 Method and apparatus for preventing unauthorized data from being transferred
06/29/2006US20060140407 Optical machine locking method and system
06/29/2006US20060140397 Method for transmitting messages between an emitter and at least on receiver and system for implementing said method
06/29/2006US20060140303 Wireless communication method and apparatus
06/29/2006US20060140298 Reduced complexity multicarrier precoder
06/29/2006US20060140297 Multicarrier receiver and methods of generating spatial correlation estimates for signals received with a plurality of antennas
06/29/2006US20060140296 Apparatus and method for reducing the peak-to-average power ratio of OFDM/OFDMA signals
06/29/2006US20060140295 Multi sub-carrier communication system and method providing improved frequency equalization performance
06/29/2006US20060140294 Block modulation
06/29/2006US20060140293 Method for detecting signal and estimating symbol timing
06/29/2006US20060140292 Process of synchronization in the time and frequency domain of multiple equipments in a transmission system with OFDM modulation
06/29/2006US20060140291 Architecture for multi-channel digital signal processing
06/29/2006US20060140290 Training symbol format for adaptively power loaded MIMO
06/29/2006US20060140289 Method and apparatus for providing an efficient pilot scheme for channel estimation
06/29/2006US20060140288 System and method for transmission and reception of multicarrier data signals
06/29/2006US20060140287 Simultaneous bi-directional link
06/29/2006US20060140259 Sub-symbol parallel inteference cancellation
06/29/2006US20060140258 Sub-symbol parallel inteference cancellation
06/28/2006EP1674964A1 Method and apparatus for distributing enforceable property rights
06/28/2006EP1674881A2 Method and apparatus for receiving GPS/GLONASS signals
06/28/2006EP1673898A1 Data communication security arrangement and method
06/28/2006EP1673890A2 Identity-based-encryption system with district policy information
06/28/2006EP1673889A1 Image decryption system
06/28/2006EP1243093B1 Handling a secret key
06/28/2006CN1795634A Adjusting the amplitude and phase characteristics of transmitter generated wireless communication signals in response to base station transmit power control signals and known transmitter amplifier cha
06/28/2006CN1794760A Mobile phone scrambler and its privacy communication method
06/28/2006CN1262132C Method for realizing remote cipher key destruction for secret mobile phone
06/27/2006US7069595 Method of controlling use of digitally encoded products
06/27/2006US7069593 Device and method for making secure an integrated circuit
06/27/2006US7069592 Web-based document system
06/27/2006US7069590 System and method for protecting data streams in hardware components
06/27/2006US7069589 Detection of a class of viral code
06/27/2006US7069436 Information transmission system and method, transmitting apparatus, receiving apparatus, data processing device and data processing method, and recording medium
06/27/2006US7069434 Secure data transfer method and system
06/27/2006US7069249 Electronic purchase of goods over a communications network including physical delivery while securing private and personal information of the purchasing party
06/27/2006US7068983 Method for detecting quadrature modulator carrier leak adjusting point by geometrical analysis/calculation method, carrier leak adjusting method, and quadrature modulation apparatus
06/27/2006US7068812 Decoding hidden data from imagery
06/27/2006US7068811 Protecting images with image markings
06/27/2006US7068788 Data encryption for suppression of data-related in-band harmonics in digital to analog converters
06/27/2006US7068786 Dual use block/stream cipher
06/27/2006US7068729 Multi-stage code generator and decoder for communication systems
06/27/2006US7068707 Method and apparatus for tracking signals in a wireless communication system
06/27/2006US7068701 Data transmission and reception within a spread-spectrum communication system
06/27/2006US7068397 Image forming apparatus and image reading device for use in the apparatus
06/22/2006WO2006047750A3 System and method for controlling modulation
06/22/2006WO2005041460A3 A device, system, method and computer readable medium for selectively attaching to a cellular data service
06/22/2006US20060137020 Method and apparatus for accessing session data
06/22/2006US20060136986 Enterprise security monitoring system and method
06/22/2006US20060136744 Method and apparatus for electro-biometric identity recognition
06/22/2006US20060136743 System and method for performing security access control based on modified biometric data
06/22/2006US20060136742 Personal digital key and receiver/decoder circuit system and method
06/22/2006US20060136740 Apparatus, system, and method for generating and authenticating a computer password
06/22/2006US20060136739 Method and apparatus for generating one-time password on hand-held mobile device
06/22/2006US20060136736 Time managing system and method
06/22/2006US20060136734 Identification display device
06/22/2006US20060133646 Video steganography
06/22/2006US20060133614 Key synchronization mechanism for wireless lan (wlan)
06/22/2006US20060133613 Authentication method of ad hoc network and wireless communication terminal thereof
06/22/2006US20060133612 System and method of preventing alteration of data on a wireless device
06/22/2006US20060133597 System for protecting personal information of a customer when receiving on-line services from a service provider
06/22/2006US20060133529 Apparatus and method for performing time domain channel estimation in a communication system
06/22/2006US20060133528 Receiver and communication method for digital multi-carrier communication
06/22/2006US20060133527 Residual frequency, phase, timing offset and signal amplitude variation tracking apparatus and methods for OFDM systems
06/22/2006US20060133526 Method for joint time synchronization and frequency offset estimation in OFDM system and apparatus of the same
06/22/2006US20060133525 Symbol timing estimation in communication systems
06/22/2006US20060133524 Multicarrier signal transmission apparatus, multicarrier signal receiving apparatus, multicarrier signal transmission method, multicarrier signal receiving method, and communication system
06/22/2006US20060133523 Multi-tone system with oversampled precoders
06/22/2006US20060133522 MC-CDMA multiplexing in an orthogonal uplink
06/22/2006US20060133521 Performance based rank prediction for MIMO design
06/22/2006US20060133520 Method of modulation and demodulation of a digital signal, in particular in a frequency band affected by flat fading, associated modulator and demodulator
06/22/2006US20060133519 Method and system for providing window shaping for multiline transmission in a communications system
06/22/2006US20060133455 Multiple modulation technique for use in a communication system
06/22/2006US20060133452 Time domain spreading method and apparatus
06/21/2006EP1671394A2 Enhanced holographic communications apparatus and method
06/21/2006CN2790046Y Antimonitoring electronic antitheft device
06/21/2006CN1792063A Time-triggered communication system and method for the synchronized start of a dual-channel network
06/20/2006US7065790 Method and system for providing computer malware names from multiple anti-virus scanners