Patents for H04K 1 - Secret communication (16,771)
04/2003
04/03/2003US20030063346 Reconfigurable, multi-user optical communications network, with low latency time
04/01/2003US6542618 Methods for watermark decoding
03/2003
03/27/2003WO2002071679A3 Theft resistant graphics
03/26/2003EP0944980B1 Method and system for improving security in network applications
03/25/2003US6539095 Audio watermarking to convey auxiliary control information, and media embodying same
03/25/2003CA2278969C Safe transmission of broadband data messages
03/20/2003WO2003023982A2 Transmission security for wireless lans
03/20/2003US20030056151 Software evaluation system, software evaluation apparatus, software evaluation method, recording medium, and computer data signal
03/13/2003WO2003021859A1 Compensation for non-linear distortion in a modem receiver
03/13/2003WO2002088893A3 Application-specific information-processing method, system, and apparatus
03/13/2003US20030051248 Signal processing
03/13/2003US20030051158 Interception of secure data in a mobile network
03/13/2003US20030051054 Data security system and method adjunct to e-mail, browser or telecom program
03/13/2003US20030048905 Encryption key distribution and network registration system, apparatus and method
03/13/2003US20030048901 Staggered pulse acquisition method and apparatus
03/13/2003CA2458650A1 Compensation for non-linear distortion in a modem receiver
03/12/2003EP1292145A2 Signal processing
03/12/2003EP1290823A1 Method and apparatus for distributing enforceable property rights
03/11/2003US6532256 Method and apparatus for signal transmission and reception
03/06/2003WO2003019449A2 Digitally watermarking checks and other value documents
03/06/2003US20030046562 Remote medical supporting system
03/06/2003US20030044004 Ring arithmetic method, system, and apparatus
03/05/2003CN1401169A System and method for protecting data streams in hardware components
03/04/2003US6529602 Method and apparatus for the secure storage of audio signals
02/2003
02/27/2003WO2003017062A2 Securities quotation display method and system
02/27/2003US20030041248 External locking mechanism for personal computer memory locations
02/27/2003US20030041244 Method for securing communications between a terminal and an additional user equipment
02/27/2003US20030041195 Communication system and communication control apparatus and method
02/27/2003US20030041006 Methods and systems for suppression of stale or invalid data in a securities quotation display
02/27/2003US20030040326 Wireless methods and devices employing steganography
02/27/2003US20030039356 Encryption method, communication system, transmission device, and data input device
02/26/2003EP1285333A1 Communication systems
02/26/2003CN1102323C Method and equipment for video signal ciphering and deciphering
02/20/2003WO2003015328A2 Method and device for encrypting a discrete signal and method and device for decrypting the same
02/20/2003US20030035565 Methods for encoding security documents
02/20/2003US20030034909 Data encryption and signal scrambling using programmable data conversion arrays
02/19/2003CN1398099A Sound data transmitting system and method and transmitting servicer and user's terminal
02/13/2003WO2003012666A1 Computer software product for data security of sensitive words characters or icons
02/13/2003CA2454439A1 Computer software product for data security of sensitive words characters or icons
02/11/2003US6519699 Method and system for voice guided secure entry of private data in a public setting
02/11/2003US6519352 Encoding and decoding in accordance with steganographically-conveyed data
02/11/2003US6519340 Method and apparatus for encryption using partial information
02/11/2003US6519299 Methods and apparatus to despread dual codes for CDMA systems
02/06/2003WO2003010669A1 Wireless access system, method, signal, and computer program product
02/06/2003US20030028781 Mechanism for closing back door access mechanisms in personal computer systems
02/06/2003US20030026452 Methods and systems for watermark processing of line art images
02/06/2003US20030026451 Method and system for encoding image and audio content
02/06/2003US20030026327 Multiuser receiver and communication system that performs multicode transmission
02/06/2003DE20218246U1 Mobile accessory for scrambling communication between mobile telephones
02/05/2003EP0908024B1 Packet-switched spread-spectrum system
02/05/2003CN1395733A Distribution of content
02/04/2003US6515981 Packet-switched spread-spectrum system
01/2003
01/30/2003US20030021440 Digital watermarking employing noise model
01/29/2003EP1280290A1 Optical multiuser low latency reconfigurable communications network
01/29/2003EP1279310A1 Arrangement and method for subscription to a cell broadcast service
01/29/2003CN1394414A Communication system, communication control apparatus and method
01/29/2003CN1394399A Data transmitting apparatus, radio communication system and radio communication method
01/23/2003WO2002056576A3 Methods and apparatus for securely transmitting and processing digital image data
01/22/2003EP1278331A1 Content data storage
01/22/2003EP1277301A2 Method for transmitting payment information between a terminal and a third equipement
01/22/2003EP1277299A1 Method for securing communications between a terminal and an additional user equipment
01/16/2003WO2003005627A2 Mobile application access control list security system
01/16/2003WO2002052763A3 Multiple format secure voice apparatus for communication handsets
01/16/2003US20030012548 Watermark systems for media
01/16/2003US20030012381 Analog signal scrambler for any phone, including cellular phones, employing a unique frame synchronization system
01/16/2003US20030012270 Receiver
01/15/2003EP1275074A1 Method and system for automatically publishing content
01/09/2003WO2003003681A1 Method and apparatus for an ultra-wideband (uwb) radio utilizing mems filtering for echo cancellation
01/09/2003US20030009675 Mobile application access control list security system
01/09/2003US20030009659 Portable telecommunication security device
01/08/2003CN1098595C Method and equipment for video signal ciphering and deciphering
01/03/2003WO2002062008A3 Partial encryption of assembled bitstreams
01/02/2003US20030005302 Theft resistant graphics
01/02/2003US20030002592 Method and apparatus for an ultra-wideband radio utilizing MEMS filtering
01/02/2003EP1271824A1 Multiuser receiver and communication system for multicode transmission
12/2002
12/27/2002WO2002089399B1 Ring arithmetic method, system, and apparatus
12/26/2002US20020198843 Method and apparatus for distributing enforceable property rights
12/26/2002US20020196943 Telephone network and method for utilizing the same
12/25/2002CN1097352C Radio data communication device
12/24/2002US6498851 Data encryption and signal scrambling using programmable data conversion arrays
12/19/2002WO2002101983A1 Method and apparatus for distributing enforceable property rights
12/19/2002US20020194445 Controller architecture and strategy for small discontiguous accesses to high-density memory devices
12/19/2002US20020194136 Hedging employee stock options
12/19/2002US20020191604 Application-specific information-processing method, system, and apparatus
12/19/2002US20020191450 Computational method, system, and apparatus
12/17/2002US6496591 Video copy-control with plural embedded signals
12/17/2002US6496582 Information processing apparatus and method therefor
12/17/2002CA2270081C Encrypting speech coder
12/12/2002WO2002063852A3 Method and apparatus for partial encryption of contents
12/11/2002EP1264434A2 Method and circuit arrangement for the secure transmission in digital transmission systems
12/05/2002US20020181558 Simultaneous plural code series generator and CDMA radio receiver using same
12/05/2002US20020181439 Data transmitting apparatus, radio communication system and radio communication method
12/04/2002EP1262144A1 Spread spectrum telemetry of physiological signals
12/04/2002CN1383642A Frequency shift transceiver
11/2002
11/28/2002US20020178103 Automated dynamic negotiation of electronic service contracts
11/28/2002US20020176601 Audio with hidden in-band digital data
11/27/2002EP1260045A1 A method of chip interleaving in direct sequence spread spectrum communications
11/27/2002CN1382273A Randon number generation for encrypting cellular communications
11/25/2002CA2387556A1 Spread spectrum telemetry of physiological signals
11/21/2002WO2002093827A1 Encryption/decryption engine for multiple data streams