| Patents for H04K 1 - Secret communication (16,771) |
|---|
| 04/07/2004 | CN1487693A Signal processing method in secret quantum communication system |
| 04/07/2004 | CN1145301C Digital radio equipment with voice coding encrypted decoder |
| 04/06/2004 | US6718038 Cryptographic method using modified fractional fourier transform kernel |
| 04/01/2004 | WO2004028153A1 A video recorder unit and method of operation therefor |
| 04/01/2004 | WO2002093335A3 External locking mechanism for personal computer memory locations |
| 04/01/2004 | US20040064708 Zero administrative interventions accounts |
| 04/01/2004 | DE10243850A1 Verfahren zur Übertragung von Datentelegrammen in einem geschalteten, zyklischen Kommunikationssystem Method for transmitting data messages in a switched, cyclic communication system |
| 04/01/2004 | DE10012875B4 Mobilfunkempfänger Mobile receiver |
| 03/31/2004 | CN1144399C Arrangement and method for checking identification signal |
| 03/30/2004 | US6714598 Burst-mode combining of reverse path radio frequency signals |
| 03/30/2004 | CA2203131C Method and apparatus for secure identification of a mobile user in a communication network |
| 03/25/2004 | WO2004025533A1 License management device, license management method, and computer program |
| 03/25/2004 | WO2004025460A2 Screening for illegitimate requests to a computer application |
| 03/25/2004 | US20040059678 Consumer distribution license system and method |
| 03/25/2004 | US20040057581 Method and apparatus for transaction card security utilizing embedded image data |
| 03/25/2004 | CA2498649A1 Screening for illegitimate requests to a computer application |
| 03/24/2004 | EP1399822A1 System for protecting copyrighted materials |
| 03/23/2004 | US6711528 Blind source separation utilizing a spatial fourth order cumulant matrix pencil |
| 03/23/2004 | US6711216 Method and apparatus for an ultra-wideband radio utilizing MEMS filtering |
| 03/18/2004 | WO2004023694A1 Image encryption method and visual decryption device |
| 03/18/2004 | WO2004008683A3 Automated network security system and method |
| 03/18/2004 | WO2003096281A3 Dynamic security system |
| 03/18/2004 | WO2003079196A3 System and method of secure garbage collection on a mobile device |
| 03/18/2004 | US20040054862 Information recording medium having reproduction control program recorded thereon and reproduction control program |
| 03/18/2004 | US20040052372 Software radio system and method |
| 03/17/2004 | CN1482817A Method and apparatus for implementing encrypted communication in mobile communication system |
| 03/11/2004 | WO2004021707A1 Diligent control of preview of stored contents |
| 03/11/2004 | WO2004021616A1 Transmission/reception apparatus and transmission/reception method |
| 03/11/2004 | US20040049654 Secondary processor execution kernel framework |
| 03/11/2004 | US20040049469 Ranking system and ranking mehod |
| 03/11/2004 | US20040049462 System and method for specifying and processing legality expressions |
| 03/11/2004 | US20040047467 Document encoding by pixel block transformation and document decoding by overlaying |
| 03/10/2004 | CN1481628A Multiple format secure voice appts. for communication handsets |
| 03/10/2004 | CN1481116A Automatic configuration equipment for linking network media and its method |
| 03/10/2004 | CN1480829A Data encryption and deciphering method, appts. and program |
| 03/04/2004 | US20040042619 Method and apparatus for signal scrambling/descrambling, and method of speech secrecy based on the same |
| 02/26/2004 | WO2004017592A1 System and method for secure control of resources of wireless mobile communication device |
| 02/26/2004 | WO2004017560A1 Monitoring of digital content provided from a content provider over a network |
| 02/26/2004 | US20040039917 Authentication query strategizer and results compiler |
| 02/26/2004 | CA2838205A1 System and method for secure control of resources of wireless mobile communication devices |
| 02/26/2004 | CA2838180A1 System and method for secure control of resources of wireless mobile communication devices |
| 02/26/2004 | CA2496165A1 System and method for secure control of resources of wireless mobile communication devices |
| 02/25/2004 | CN1478337A Multiple access frequency hopping network with interference avoidance |
| 02/25/2004 | CN1477809A Quantum state classical sequence rearrangement encrypition method in quantum key distribution |
| 02/25/2004 | CN1477808A Quantum coder and decoder of phase modulated polarizing state and its application method |
| 02/25/2004 | CN1477413A Quantum encoder whose polarization state is modulated by phase and decoder and its application |
| 02/19/2004 | WO2004015916A1 Encrypting/decrypting device and method, encrypting device and method, decrypting device and method, and transmitting/receiving device |
| 02/19/2004 | WO2004015576A1 System and method for preventing access to data on a compromised remote device |
| 02/19/2004 | CA2495083A1 System and method for preventing access to data on a compromised remote device |
| 02/12/2004 | WO2003017062A3 Securities quotation display method and system |
| 02/12/2004 | WO2002093336A3 Processor with protected test and debug mode |
| 02/11/2004 | EP1388232A1 Encryption/decryption engine for multiple data streams |
| 02/11/2004 | EP1388230A2 Method and device for encrypting a discrete signal and method and device for decrypting the same |
| 02/05/2004 | WO2004012384A2 Apparatus and method for enctyption and decryption |
| 02/05/2004 | US20040025038 Method for tracing the distribution of physical digital media |
| 02/05/2004 | US20040024670 Rights management system using legality expression language |
| 01/29/2004 | WO2004010634A1 Electronic information transmission system |
| 01/29/2004 | WO2004010630A2 Logical access block processing protocol for transparent secure file storage |
| 01/29/2004 | US20040019546 Method and apparatus for processing usage rights expressions |
| 01/29/2004 | US20040017914 Information reproducing apparatus, information reproducing method, and information reproducing program, and information recording medium on which the information reproducing program is recorded |
| 01/29/2004 | US20040017913 Efficient encryption and authentication for data processing systems |
| 01/27/2004 | US6683958 Apparatus and method for embedding and extracting information in analog signals using distributed signal features and replica modulation |
| 01/27/2004 | US6683955 Method for receiving a secured transmission of information through a plurality of frequency orthogonal subchannels |
| 01/22/2004 | WO2004008704A1 Frequency domain equalization in communications systems with scrambling |
| 01/22/2004 | WO2004008683A2 Automated network security system and method |
| 01/22/2004 | US20040015724 Logical access block processing protocol for transparent secure file storage |
| 01/22/2004 | US20040015426 System and method for expressing usage rights with sound signals |
| 01/22/2004 | US20040015363 Audio watermarking to convey auxiliary information, and media employing same |
| 01/22/2004 | US20040015362 Methods for decoding watermark data from audio, and controlling audio devices in accordance therewith |
| 01/22/2004 | US20040012445 High frequency power amplifier module and wireless communication system |
| 01/22/2004 | CA2532622A1 Frequency domain equalization in communications systems with scrambling |
| 01/21/2004 | EP1383291A2 multicarrier modulation with data dependant frequency-domain redundancy |
| 01/21/2004 | EP1382202A1 Audio coding with partial encryption |
| 01/21/2004 | EP0788688B1 Method and apparatus for secure identification of a mobile user in a communication network |
| 01/21/2004 | CN1469558A Method and device for obtaining single photon output according to photon number distribution in output port |
| 01/20/2004 | CA2090086C Process and device for hardening transmissions, particularly between a control station and a transponder |
| 01/15/2004 | US20040010724 System and method for authenticating users in a computer network |
| 01/15/2004 | US20040010467 Content data storage |
| 01/14/2004 | CN1134932C Establishment of cryptographic keys in radio network |
| 01/13/2004 | US6678309 CDMA base station system |
| 01/08/2004 | WO2004004198A1 Information processing method, information processing apparatus, program, and storage medium |
| 01/08/2004 | WO2002054796A3 System for fast macrodiversity switching in mobile wireless networks |
| 01/06/2004 | US6675146 Audio steganography |
| 01/02/2004 | EP1376922A1 Encrypting device |
| 12/31/2003 | WO2004001656A2 Systems and methods for secure biometric authentication |
| 12/31/2003 | CN1464676A Method for implementing secret communication and encryption apparatus thereof |
| 12/30/2003 | US6671331 Carrier detecting circuit for detecting the level of a received signal and communication apparatus |
| 12/25/2003 | US20030235300 Method of generating cryptographic key using elliptic curve and expansion in joint sparse form and using same |
| 12/24/2003 | WO2003107664A1 Method and apparatus for processing a stream that contains encrypted information |
| 12/24/2003 | CN1463547A Audio coding with partial encryption |
| 12/18/2003 | US20030233330 Rights expression profile system and method using templates |
| 12/18/2003 | US20030233169 System and method for expressing usage rights using light signals |
| 12/17/2003 | EP1371164A2 Theft resistant graphics |
| 12/16/2003 | CA2158440C Method and apparatus for signal transmission and reception |
| 12/11/2003 | WO2003103215A1 Authentication query strategizer and results compiler |
| 12/11/2003 | WO2003103137A1 Amplification device |
| 12/11/2003 | US20030229593 Rights expression profile system and method |
| 12/11/2003 | US20030228017 Method and system for waveform independent covert communications |
| 12/10/2003 | CN1130912C Method and equipment for video signal ciphering and deciphering |
| 12/10/2003 | CN1130871C Encrypting apparatus and method |