Patents for H04K 1 - Secret communication (16,771)
11/2002
11/21/2002WO2002093336A2 Processor with protected test and debug mode
11/21/2002WO2002093335A2 External locking mechanism for personal computer memory locations
11/21/2002WO2002051019A3 Method and apparatus for interfacing to a radio frequency unit in a bluetooth communication system
11/21/2002US20020174352 Data security system for a database
11/21/2002US20020172396 Quantization-based data hiding employing calibration and locally adaptive quantization
11/21/2002US20020172364 Discontinuous transmission (DTX) controller system and method
11/21/2002US20020172357 Encryption/decryption engine for multiple isochronous data streams
11/21/2002US20020172116 Distribution of content
11/20/2002EP1258092A1 System and method for protecting data streams in hardware components
11/20/2002EP1257931A1 Connected audio and other media objects
11/19/2002US6483927 Synchronizing readers of hidden auxiliary data in quantization-based data hiding schemes
11/14/2002US20020169952 Method and apparatus for securing e-mail attachments
11/07/2002WO2002089399A1 Ring arithmetic method, system, and apparatus
11/07/2002WO2002088969A1 Controller architecture and strategy for small discontiguous accesses to high-density memory devices
11/07/2002WO2002088893A2 Application-specific information-processing method, system, and apparatus
11/07/2002WO2002088854A1 Computational method, system, and apparatus
11/07/2002US20020165013 Wireless device with vibrational communication capabilities
11/07/2002US20020164050 Audio appliance and monitoring device responsive to watermark data
11/06/2002EP1254527A1 Integrated beamforming/rake/mud cdma receiver architecture
10/2002
10/31/2002WO2002087241A1 Audio coding with partial encryption
10/31/2002WO2002069115A3 A security system with an intelligent dma controller
10/31/2002US20020161978 Multi-service system-on-chip including on-chip memory with multiple access path
10/31/2002US20020161959 On-chip inter-subsystem communication
10/31/2002US20020160818 Wireless mobile phone having encoded data entry facilities
10/31/2002US20020160796 Frequency shift transceiver
10/31/2002US20020159474 On-chip inter-subsystem communication including concurrent data traffic routing
10/30/2002EP1252737A2 Method and apparatus for achieving crypto-syncronization in a packet data communication system
10/30/2002CN1377147A Single-photon router
10/25/2002EP0732017A4 System and method for transmitting and receiving variable length authorization control for digital services
10/24/2002WO2002084565A1 System and method for controlling access and use of private information
10/24/2002US20020154774 Audio coding
10/22/2002CA2119823C Radio telecommunication apparatus
10/17/2002WO2002082715A1 Encrypting device
10/17/2002US20020152182 Auction method and auction system, and storage medium therefor
10/17/2002US20020150249 Communication apparatus
10/16/2002EP1249127A2 A method of scrambling a signal
10/15/2002US6466607 Hybrid spread spectrum method and system for wirelessly transmitting and receiving wideband digital data
10/09/2002EP1248454A2 Method for scrambling digital images
10/08/2002US6463150 Encryption device for information in binary code
10/08/2002US6463089 Hybrid spread spectrum method and system for wirelessly transmitting and receiving wideband digital data
10/03/2002WO2002078234A1 Quantization-based data hiding employing calibration and locally adaptive quantization
10/03/2002US20020141490 Receiver and low power digital filter therefor
10/02/2002CN1372380A Electromagnetic transmission disturber
09/2002
09/26/2002WO2002037768A8 Communication system and communication control apparatus and method
09/26/2002US20020136278 Spread-spectrum signal receiver apparatus and interference cancellation apparatus
09/25/2002EP1242939A1 System and method for providing payment services in electronic commerce
09/24/2002US6456647 Two step signal recovery scheme for a receiver
09/19/2002WO2000064064A9 Digital radio system
09/19/2002US20020133706 Login for online account aggregation
09/19/2002US20020131478 Extension of wireless local area network communication system to accommodate higher data rates while preserving legacy receiver features
09/18/2002EP1241833A1 Communication system and communication control apparatus and method
09/18/2002EP1241817A1 Receiver
09/18/2002EP0637413B1 Verifying secret keys in a public-key cryptosystem
09/18/2002CN1369982A CDMA mobile communication demodulating circuit and related demodulating method
09/17/2002CA2051810C Video signal scrambling and unscrambling method
09/12/2002WO2002071714A1 Electronic device for providing a spread spectrum signal
09/12/2002WO2002071679A2 Theft resistant graphics
09/12/2002US20020126839 Data encryption for suppression of data-related in-band harmonics in digital to analog converters
09/12/2002US20020126745 Signal combining within a communication system
09/12/2002US20020126741 Method and system for transmission and frequency domain equalization for wideband CDMA system
09/12/2002US20020126740 Chip-interleaved, block-spread multi-user communication
09/11/2002EP1238336A1 Dual network system and method for online authentication or authorization
09/11/2002EP0882337A4 Voice messaging system and method making efficient use of orthogonal modulation components
09/11/2002EP0682830A4 A multiplex control packet for digital services
09/10/2002US6449379 Video steganography methods avoiding introduction of fixed pattern noise
09/10/2002US6449377 Methods and systems for watermark processing of line art images
09/06/2002WO2002069158A1 A multi-service system-on-chip
09/06/2002WO2002069157A1 A subsystem boot and peripheral data transfer architecture for a subsystem of a system-on-chip
09/06/2002WO2002069115A2 A security system with an intelligent dma controller
09/05/2002US20020123337 System for fast macrodiversity switching in mobile wireless networks
09/05/2002US20020122468 Quasi orthogonal hybrid walsh-PN codes for CDMA application in HF modems
09/05/2002US20020122461 Virtual cell mapping in macrodiverse wireless networks with frequency hopping
09/05/2002US20020122406 Fast macrodiversity switching with time management in wireless networks
09/03/2002US6446210 Method for securing communication by selecting an encoding process using a first computer based upon ability of a second computer and deleting the process thereafter
09/03/2002US6445678 Method and apparatus for implementing leaf node proxy in a network
08/2002
08/29/2002WO2002067469A1 Multiple access frequency hopping network with interference avoidance
08/29/2002WO2002056537A8 Method for certifying and unifying delivery of electronic packages
08/29/2002US20020120839 Routing networks for use with watermark systems
08/29/2002US20020118828 Encryption apparatus, decryption apparatus, and authentication information assignment apparatus, and encryption method, decryption method, and authentication information assignment method
08/29/2002US20020118735 Method and apparatus for interfacing between a radio frequency unit and a modem
08/29/2002US20020118726 System and electronic device for providing a spread spectrum signal
08/29/2002US20020118394 Watermark systems and methods
08/28/2002CN1366395A Equipment and method used for encryption, deciphering and identified information distribution
08/28/2002CN1366390A Executive path search, path search method and CDMA receiver of program
08/22/2002US20020116293 Method and system for automatically publishing content
08/22/2002US20020114492 Encoding and decoding in accordance with steganographically-conveyed data
08/21/2002EP1233621A2 Method and apparatus for scrambling and descrambling of video signals using edge fill
08/21/2002EP1233620A1 Method and apparatus for concealing a composite video signal by use of sync wiggle
08/21/2002EP1233547A1 Data transmitting apparatus, radio communication system and radio communication method
08/20/2002US6438252 Method for encoding bits in a signal
08/20/2002US6438231 Emulsion film media employing steganography
08/15/2002WO2002063852A2 Method and apparatus for partial encryption of contents
08/15/2002US20020112165 Distributed system for responding to watermarked documents
08/15/2002US20020111917 Tokenless biometric electronic transactions using an audio signature to identify the transaction processor
08/15/2002US20020110182 Code division multiple access receiver
08/15/2002US20020109549 High frequency power amplifier module, and wireless communications system
08/13/2002US6433639 High frequency power amplifier module and wireless communication system
08/08/2002WO2002062008A2 Partial encryption of assembled bitstreams
08/08/2002US20020108035 Method and apparatus for partial encryption of content
08/08/2002US20020106104 Synchronizing readers of hidden auxiliary data in quantization-based data hiding schemes