H04K 1/04

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Description

Class  H04K : SECRET COMMUNICATION; JAMMING OF COMMUNICATION


Subclass 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

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12250069 Apparatus and method for generating jamming signal, communication systemMay 02, 22Mar 11, 25Agency for Defense Development
12166571 Robust code / data hiding method against analog transmission (over the air) for digital audioJul 28, 20Dec 10, 24Not available
11811506 Application of key exchange based physical layer security methodsFeb 04, 20Nov 07, 23ISTANBUL TEKNIK UNIVERSITESI
11581962 Intrusion detection and radio fingerprint trackingOct 13, 20Feb 14, 23Department 13, Inc.
11354615 Blockchain-implemented digital agreement management for digital twin assetsApr 23, 19Jun 07, 22International Business Machine Corporation
11269721 Memory system for preventing write errorMay 27, 20Mar 08, 22SK HYNIX INC.
11232809 Method for preventing intelligible voice recordingsAug 27, 20Jan 25, 2212539322 CANADA INC.
11146393 Method for encoding and decoding data by varying the distinctive characteristics of an optical radiation, encoding device and decoding systemJul 11, 18Oct 12, 21SLUX Sagl
11113419 Selective enforcement of privacy and confidentiality for optimization of voice applicationsNov 12, 19Sep 07, 21International Business Machine Corporation
10923096 Masking open space noise using sound and corresponding visualOct 17, 19Feb 16, 21Plantronics Inc.
10862597 Cooperative intrusion detectionNov 05, 19Dec 08, 20Not available
10805018 Intrusion detection and radio fingerprint trackingJun 05, 17Oct 13, 20Not available
10789971 Device and method for preventing intelligible voice recordingsMay 05, 17Sep 29, 20SECURITE SPYTRONIC INC.
10691530 Apparatuses and methods for correcting errors and memory controllers including the apparatuses for correcting errorsJul 19, 17Jun 23, 20SK hynix Inc.
10540521 Selective enforcement of privacy and confidentiality for optimization of voice applicationsAug 24, 17Jan 21, 20International Business Machine Corporation
10482866 Masking open space noise using sound and corresponding visualAug 10, 16Nov 19, 19Plantronics Inc.
10469186 Cooperative intrusion detectionFeb 18, 19Nov 05, 19Department 13, Inc.
10439754 Methods and apparatus to implement a third-order signal scramblerMar 30, 17Oct 08, 19The Boeing Company
10380987 Masking open space noise using sound and corresponding visualJan 16, 18Aug 13, 19Plantronics Inc.
10320554 Differential power analysis resistant encryption and decryption functionsApr 26, 16Jun 11, 19Altera Corporation

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2022/0360,359 COMMUNICATIONS SYSTEMJul 20, 22Nov 10, 22Not available

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Patents Issued To Date - By Filing Year

Average Time to Issuance