ClassID:

224670

H04K3/28 - CPC Classification

Classification description:

Jamming of communication; Counter-measures; Countermeasures against jamming with jamming and anti-jamming mechanisms both included in a same device or system, e.g. wherein anti-jamming includes prevention of undesired self-jamming resulting from jamming

Recent Application in this class:
#1
20260025222
2026-01-22

ONSTAR JAMMING DETECTION USING INTERNAL VEHICLE CELLULAR RECEIVED STRENGTH SIGNAL INDICATOR BASIS

#2
20250344238
2025-11-06

METHODS AND APPARATUSES FOR RELAYING DATA IN WIRELESS NETWORKS

#3
20250330258
2025-10-23

LOW-LATENCY RADIO FREQUENCY SIGNAL CLASSIFICATION FOR ONLINE RF SENSING

#4
20240138025
2024-04-25

Programmable multi-waveform RF generator for use as battlefield decoy

#5
20230246728
2023-08-03

REACTIVE JAMMING DETECTION

#6
20220308236
2022-09-29

Control method, apparatus and device for preventing pseudo GNSS signal interference, and storage medium

#7
20220276303
2022-09-01

Hardware component and a method for implementing a camouflage of current traces generated by a digital system

#8
20210314961
2021-10-07

Methods and apparatuses for relaying data in wireless networks

#9
20210306088
2021-09-30

Radio frequency communication and jamming device and method for physically secured friendly radio frequency communication and for jamming hostile radio frequency communication

#10
20210048535
2021-02-18

Phased-array anti-jamming device and method

#11
20200366402
2020-11-19

Programmable multi-waveform RF generator for use as battlefield decoy

#12
20200106545
2020-04-02

Radio frequency communication and jamming device and method for physically secured friendly radio frequency communication and for jamming hostile radio frequency communication

#13
20190363819
2019-11-28

Link 16 transceiver with integral signal nulling system

#14
20190293781
2019-09-26

Coexistence of radio communication and radar probing

#15
20190020439
2019-01-17

Device privacy protection

#16
20180224557
2018-08-09

Spoofing detection and anti-jam mitigation for GPS antennas

#17
20180196142
2018-07-12

Method and apparatus for providing secure timing and position synchronization from GNSS

#18
20180014311
2018-01-11

Distributed rate allocation and collision detection in wireless networks

#19
20180013515
2018-01-11

Signal sending method and device

#20
20170139034
2017-05-18

Method and system of reactive interferer detection

#21
20170045608
2017-02-16

Programmable apparatus for synthesized filter notch

#22
20170026076
2017-01-26

Systems and method for adaptive frequency management utilizing multiple frequency sets

#23
20160380654
2016-12-29

Methods and apparatus for data communication using bandwidth modulation

#24
20160353354
2016-12-01

Selective control of mobile devices for protecting high speed moving convoy

#25
20160294502
2016-10-06

Event sequencer for a radio frequency system

#26
20160294501
2016-10-06

Communications system

#27
20160065251
2016-03-03

Selecting a precoding configuration based on self-jamming metrics

#28
20150288481
2015-10-08

Device and method for neutralizing the impact of a jamming signal on a satellite

#29
20150139160
2015-05-21

Full duplex radio transceiver with remote radar detection

#30
20150063147
2015-03-05

Managing radar detection in wireless network that uses frequency-division duplexing

#31
20150063146
2015-03-05

Radar detection in wireless network that uses frequency-division duplexing

#32
20140257802
2014-09-11

Signal processing device, signal processing method, and storage medium

#33
20140170963
2014-06-19

Method for jamming communications in an open-loop-controlled network

#34
20140165144
2014-06-12

Secured communication

#35
20140120966
2014-05-01

Radio transceiver with improved radar detection

#36
20130307687
2013-11-21

Passive device shield with proximity change alert

#37
20130267163
2013-10-10

COMMUNICATIONS SECURITY IN MULTIPLE-ANTENNA WIRELESS NETWORKS

#38
20130260671
2013-10-03

Remote satellite terminal with antenna polarization alignment enforcement and associated methods

#39
20130201857
2013-08-08

Distributed rate allocation and collision detection in wireless networks

#40
20130178148
2013-07-11

Method for jamming communications in a closed-loop control network

#41
20120276838
2012-11-01

Radio frequency signal detection and replication apparatus and method

#42
20120252349
2012-10-04

Digital processing for co-site interference mitigation

#43
20120178358
2012-07-12

Methods of suppressing GSM wireless device threats in dynamic or wide area static environments using minimal power consumption and collateral interference

#44
20120169522
2012-07-05

Distributed and coordinated electronic warfare system

#45
20110263195
2011-10-27

System and method for providing broadband interference and allowing communication therethrough

#46
20110223851
2011-09-15

Multi-band jammer including airborne systems

#47
20110163896
2011-07-07

Security system for mass transit and mass transportation

#48
20110033051
2011-02-10

Method and apparatus for reducing probability of detection, improving jamming resistance and security for broadband wireless systems

#49
20100302956
2010-12-02

Enhanced methods of cellular environment detection when interoperating with timed interfers

#50
20100289688
2010-11-18

Tactical radio and radio network with electronic countermeasures

#51
20100283658
2010-11-11

Anti jamming system

#52
20100283656
2010-11-11

METHOD AND SYSTEM FOR JAMMING SIMULTANEOUSLY WITH COMMUNICATION USING OMNI-DIRECTIONAL ANTENNA

#53
20100277371
2010-11-04

True time delay systems with array antenna for the spatially changeable radiation pattern for maximum power ultra-wideband pulses

#54
20100265116
2010-10-21

Anti jamming system

#55
20100255771
2010-10-07

Crisis response system including cell jamming device

#56
20100074625
2010-03-25

Apparatus for voice communication using an incoherent light source

#57
20100069011
2010-03-18

Methods and Apparatus For Self-Jamming Suppression In A Radio Frequency Identification (RFID) Reader

#58
20100033305
2010-02-11

Method and system for secure communication

#59
20100015910
2010-01-21

Counter-intelligence signal enabled communication device

#60
20090251354
2009-10-08

Method and system for extending operational electronic range of a vehicle

#61
20090237289
2009-09-24

Multi-band jammer

#62
20090209196
2009-08-20

Methods of suppressing GSM wireless device threats in dynamic or wide area static environments using minimal power and collateral interference

#63
20090061759
2009-03-05

Regenerative jammer with multiple jamming algorithms

#64
20080317265
2008-12-25

Anti-eavesdropping device

#65
20080239980
2008-10-02

LINEAR TIME INTERFERENCE MAP FOR 802.11 NETWORKS

#66
20080237346
2008-10-02

System for secure communication between a contactless card reader and a card

#67
20080169958
2008-07-17

Localized jamming of navigation signals

#68
20080081551
2008-04-03

Radio frequency identification apparatus, system and method adapted for self-jammer cancellation

#69
20080026689
2008-01-31

System for simultaneously communicating and jamming other RF signals

#70
20080002651
2008-01-03

Wireless LAN system, access point, and method for preventing connection to a rogue access point

#71
20070297489
2007-12-27

Method and apparatus to perform reactive jamming while simultaneously avoiding friendly pseudo-random frequency hopping communications

#72
20070293142
2007-12-20

Secure Contactless Communication Device and Method

#73
20070153714
2007-07-05

Device, system and method of securing wireless communication

#74
20070116093
2007-05-24

Method and apparatus to perform surgical reactive jamming while maintaining simultaneous tactical communications

#75
20070080847
2007-04-12

System and method for detecting and jamming emitter signals

#76
20070040672
2007-02-22

Security system for mass transit and mass transportation

#77
20070004331
2007-01-04

Tactical GPS denial and denial detection system

#78
20070004330
2007-01-04

Selective GPS denial system

#79
20060264168
2006-11-23

Processor based frequency selective jamming and communications system

#80
20060238414
2006-10-26

Microwave self-phasing antenna arrays for secure data transmission and satellite network crosslinks

#81
20060164282
2006-07-27

Method and apparatus for protecting personnel from RF-triggered explosive devices (RTED) using ultra-wideband (UWB) transmission

#82
20060153281
2006-07-13

Method and apparatus for automatic jammer frequency control of surgical reactive jammers

#83
20060085543
2006-04-20

Personal wireless monitoring agent

#84
20060038677
2006-02-23

System and method for monitoring and enforcing a restricted wireless zone

#85
20050212673
2005-09-29

System and method for selectively reading RFID devices

#86
20050030226
2005-02-10

Microwave self-phasing antenna arrays for secure data transmission & satellite network crosslinks

#87
15682624
2019-12-10

Active canceller for electronically scanned array

#88
15432898
2017-10-24

Anti-eavesdropping shelter for protection of wireless communication

#89
15380893
2017-08-01

Antenna and transceiver for transmitting a secure signal