H04K

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Description

SECRET COMMUNICATION; JAMMING OF COMMUNICATION

Subclasses

Not Available
Subclass Title
1/00 Secret communication (ciphering or deciphering apparatus per se G09C ; systems with reduced bandwidth or suppressed carrier H04B 1/66 ; spread spectrum techniques H04B 1/69 ; by using a sub-carrier H04B 14/08 ; by multiplexing H04J ; transmission systems for secret digital information H04L 9/00 ; secret or subscription television systems H04N 7/16, H04N 21/00 )
1/02 Secret communication (ciphering or deciphering apparatus per se G09C ; systems with reduced bandwidth or suppressed carrier H04B 1/66 ; spread spectrum techniques H04B 1/69 ; by using a sub-carrier H04B 14/08 ; by multiplexing H04J ; transmission systems for secret digital information H04L 9/00 ; secret or subscription television systems H04N 7/16, H04N 21/00 ) by adding a second signal to make the desired signal unintelligible
1/04 Secret communication (ciphering or deciphering apparatus per se G09C ; systems with reduced bandwidth or suppressed carrier H04B 1/66 ; spread spectrum techniques H04B 1/69 ; by using a sub-carrier H04B 14/08 ; by multiplexing H04J ; transmission systems for secret digital information H04L 9/00 ; secret or subscription television systems H04N 7/16, H04N 21/00 ) by frequency scrambling, i.e. by transposing or inverting parts of the frequency band or by inverting the whole band
1/06 Secret communication (ciphering or deciphering apparatus per se G09C ; systems with reduced bandwidth or suppressed carrier H04B 1/66 ; spread spectrum techniques H04B 1/69 ; by using a sub-carrier H04B 14/08 ; by multiplexing H04J ; transmission systems for secret digital information H04L 9/00 ; secret or subscription television systems H04N 7/16, H04N 21/00 ) by transmitting the information or elements thereof at unnatural speeds or in jumbled order or backwards
1/08 Secret communication (ciphering or deciphering apparatus per se G09C ; systems with reduced bandwidth or suppressed carrier H04B 1/66 ; spread spectrum techniques H04B 1/69 ; by using a sub-carrier H04B 14/08 ; by multiplexing H04J ; transmission systems for secret digital information H04L 9/00 ; secret or subscription television systems H04N 7/16, H04N 21/00 ) by varying the polarisation of transmitted waves

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Recent Patents

Not Available
Patent #TitleFiling DateIssue DatePatent Owner
9,121,923 Interference detection, characterization and location in a wireless communications or broadcast system Feb 28, 12 Sep 01, 15 TRUEPOSITION, INC., TRUEPOSITION, INC.
9,124,324 Dual loop digital predistortion for power amplifiers Apr 06, 15 Sep 01, 15 TEXAS INSTRUMENTS INCORPORATED, AGILENT TECHNOLOGIES TEXAS INSTRUMENTS INCORPORATED
9,124,386 System, device, and method for securing voice authentication and end-to-end speech interaction Sep 28, 12 Sep 01, 15 INTEL CORPORATION, Not available
9,124,423 Iterative data secret-sharing transformation May 14, 10 Sep 01, 15 INTERNATIONAL BUSINESS MACHINES CORPORATION, IBM CORPORATION
9,124,464 Methods and apparatus for channel estimation in MIMO-OFDM communication system Aug 24, 12 Sep 01, 15 SAMSUNG ELECTRONICS CO., LTD., SAMSUNG ELECTRONICS CO. LTD.
9,124,477 Frequency interleave within communication systems Aug 28, 14 Sep 01, 15 BROADCOM CORPORATION, BROADCOM CORPORATION
9,117,270 Pre-processed information embedding system Jun 02, 14 Aug 25, 15 VERANCE CORPORATION, VERANCE CORPORATION
9,117,436 Sound processing apparatus and sound processing method Oct 21, 11 Aug 25, 15 YAMAHA CORPORATION, YAMAHA CORPORATION
9,118,285 Compensation of a transmitter distortion Mar 16, 12 Aug 25, 15 ST-ERICSSON SA, ST-ERICSSON SA
9,118,347 Method and apparatus for OFDM encoding and decoding Aug 28, 12 Aug 25, 15 MARVELL INTERNATIONAL LTD., MARVELL INTERNATIONAL LTD.
9,118,371 Digital transmitter and method for compensating mismatch in digital transmitter May 20, 14 Aug 25, 15 MEDIATEK INC., MEDIATEK INC.
9,118,437 Spatially segmented anti-jam antenna May 22, 13 Aug 25, 15 ROCKWELL COLLINS, INC., ROCKWELL COLLINS, INC.
9,118,441 Layout-optimized random mask distribution system and method Jan 25, 13 Aug 25, 15 FREESCALE SEMICONDUCTOR, INC., FREESCALE SEMICONDUCTOR, INC.
9,118,463 Distributed single sign on technologies including privacy protection and proactive updating Feb 29, 12 Aug 25, 15 MICROSOFT TECHNOLOGY LICENSING, LLC, MICROSOFT TECHNOLOGY LICENSING, LLC.
9,118,643 Authentication and data integrity protection of token Sep 28, 10 Aug 25, 15 SIEMENS AKTIENGESELLSCHAFT, SIEMENS AKTIENGESELLSCHAFT
9,118,966 Enforcing software independent content protection in an electronic device during transcoding Mar 29, 11 Aug 25, 15 BROADCOM CORPORATION, BROADCOM CORPORATION
9,119,064 Method and apparatus for providing broadcast channel encryption to enhance cellular network security Nov 20, 13 Aug 25, 15 AT&T INTELLECTUAL PROPERTY I, L.P., AT&T INTELLECTUAL PROPERTY I, L.P.
9,112,558 Communicating over a desired tone in the presence of interference having an unknown magnitude that is substantially constant Jun 13, 14 Aug 18, 15 TELEFONAKTIEBOLAGET L M ERICSSON (PUBL), TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
9,112,581 Method and device for data processing in XDSL system Sep 26, 08 Aug 18, 15 NOKIA SIEMENS NETWORKS OY, ADTRAN GMBH
9,112,698 Cryptographic device and method for data encryption with per-round combined operations Oct 22, 13 Aug 18, 15 MARVELL INTERNATIONAL LTD., MARVELL INTERNATIONAL LTD.

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Recent Publications

Not Available
Publication #TitleFiling DatePub DatePatent Owner
2015/0244,495 APPARATUS AND METHOD FOR TRANSMITTING JAMMING SIGNAL Feb 26, 14 Aug 27, 15 KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY,
2015/0234,053 METHODS AND APPARATUS FOR DETECTING SPOOFING OF GLOBAL NAVIGATION SATELLITE SYSTEM SIGNALS USING CARRIER PHASE MEASUREMENTS AND KNOWN ANTENNA MOTIONS Sep 20, 13 Aug 20, 15 ,
2015/0236,811 WIRELESS COMMUNICATION DEVICE Jan 20, 15 Aug 20, 15 KABUSHIKI KAISHA TOSHIBA,
2015/0229,434 ELECTRONIC COUNTERMEASURES TRANSPONDER SYSTEM Apr 24, 15 Aug 13, 15 ,

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Patents Issued To Date - By Filing Year

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