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