ClassID:

224672

H04K3/41 - CPC Classification

Classification description:

Jamming of communication; Counter-measures; Jamming having variable characteristics characterized by the control of the jamming activation or deactivation time

Sub-classes:
Recent Application in this class:
#1
20240430032
2024-12-26

ULTRA-WIDE BAND RADIO FREQUENCY SYSTEM

#2
20240267148
2024-08-08

INTERFERENCE SIGNAL SENDING METHOD AND APPARATUS, ELECTRONIC DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM

#3
20240056215
2024-02-15

METHOD FOR PREVENTING A VOICE FROM BEING INTERCEPTED

#4
20230327796
2023-10-12

Microphone Jammer

#5
20230269021
2023-08-24

A CONTROLLER FOR CONTROLLING WIRELESS COMMUNICATION BETWEEN A NODE AND A MASTER DEVICE IN A WIRELESS NETWORK AND A METHOD THEREOF

#6
20230246728
2023-08-03

REACTIVE JAMMING DETECTION

#7
20230208550
2023-06-29

Ultra-wide band radio frequency system

#8
20230076156
2023-03-09

Physical layer security activation

#9
20230052574
2023-02-16

APPARATUS AND METHOD OR FILTERING ADVERTISEMENTS IN WIRELESS NETWORKS

#10
20230044932
2023-02-09

Interfering in time-division duplex communication

#11
20220276303
2022-09-01

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

#12
20220046650
2022-02-10

Remote slowing or stopping a progress of a drone towards a target

#13
20220038202
2022-02-03

Ultra-wide band electromagnetic jamming projector

#14
20210359781
2021-11-18

Handheld portable countermeasure device against unmanned systems

#15
20210136779
2021-05-06

Remote slowing or stopping a progress of a drone towards a target

#16
20210136778
2021-05-06

Remote slowing or stopping a progress of a drone towards a target

#17
20210084659
2021-03-18

Interfering in time-division duplex communication

#18
20210058183
2021-02-25

Vehicle access with selective jamming radio signal

#19
20200374028
2020-11-26

Ultra-wide band electromagnetic jamming projector

#20
20200343992
2020-10-29

Handheld portable countermeasure device against unmanned systems

#21
20200029337
2020-01-23

Interfering in time-division duplex communication

#22
20190363821
2019-11-28

SYSTEM AND METHOD FOR COMMUNICATING WITH A UAV

#23
20190360783
2019-11-28

System and method for intercepting unmanned aerial vehicles

#24
20190239137
2019-08-01

System and method of rebroadcasting messages for reliable vehicular communications

#25
20190229835
2019-07-25

System and method for jamming a target acquisition

#26
20190173605
2019-06-06

Dual-grip portable countermeasure device against unmanned systems

#27
20190158212
2019-05-23

Portable countermeasure device against unmanned systems

#28
20190020439
2019-01-17

Device privacy protection

#29
20180367237
2018-12-20

Dual-grip portable countermeasure device against unmanned systems

#30
20180268836
2018-09-20

Speech privacy system and/or associated method

#31
20180268835
2018-09-20

Speech privacy system and/or associated method

#32
20180268834
2018-09-20

Speech privacy system and/or associated method

#33
20180254848
2018-09-06

Portable countermeasure device against unmanned systems

#34
20170237520
2017-08-17

Portable countermeasure device against unmanned systems

#35
20170187485
2017-06-29

Threat response signal inhibiting apparatus for radio frequency controlled devices and corresponding methods

#36
20170163372
2017-06-08

Radio wave jamming system, radio wave jamming apparatus, and radio wave jamming method

#37
20170147842
2017-05-25

INHIBITING UNAUTHORISED CONTACTLESS READING OF CONTACTLESS READABLE OBJECT

#38
20170134116
2017-05-11

Electromagnetic spectrum management system

#39
20170026147
2017-01-26

Wireless sensing with time reversal

#40
20160379621
2016-12-29

Using external sounds to alert vehicle occupants of external events and mask in-car conversations

#41
20160294502
2016-10-06

Event sequencer for a radio frequency system

#42
20160294501
2016-10-06

Communications system

#43
20160150361
2016-05-26

Adaptive location perturbation

#44
20160127075
2016-05-05

Threat response signal inhibiting apparatus for radio frequency controlled devices and corresponding methods

#45
20160107610
2016-04-21

Immobiliser system with controllable inhibiting means

#46
20150311998
2015-10-29

Inhibiting unauthorised contactless reading of a contactless readable object

#47
20150194144
2015-07-09

Directional sound masking

#48
20150188662
2015-07-02

PHY-level wireless security

#49
20150137998
2015-05-21

Using external sounds to alert vehicle occupants of external events and mask in-car conversations

#50
20150057999
2015-02-26

Preserving privacy of a conversation from surrounding environment using a counter signal

#51
20140334634
2014-11-13

Hunting noise masking systems and methods

#52
20140206279
2014-07-24

Method and system for intelligent jamming signal generation

#53
20120302155
2012-11-29

Multi-mode communication unit

#54
20120219160
2012-08-30

Variable noise masking during periods of substantial silence

#55
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

#56
20120154198
2012-06-21

Method for operating a jamming laser in a DIRCM system in a manner that is safe for eyes

#57
20120052794
2012-03-01

Systems, devices, and methods for selectively preventing data transfer from a medical device

#58
20110279322
2011-11-17

Signal transmission surveillance system

#59
20110243192
2011-10-06

Method and apparatus for tracking a frequency-hopped signal

#60
20110183602
2011-07-28

JAMMING APPARATUS AND METHOD FOR JAMMING A TARGET SIGNAL

#61
20110163896
2011-07-07

Security system for mass transit and mass transportation

#62
20110100202
2011-05-05

Signal transmission surveillance system

#63
20110100201
2011-05-05

Signal transmission surveillance system

#64
20100255771
2010-10-07

Crisis response system including cell jamming device

#65
20100166180
2010-07-01

CLOAKING OF RADIO SIGNALS

#66
20100104112
2010-04-29

Variable noise masking during periods of substantial silence

#67
20100093270
2010-04-15

Signal transmission surveillance system

#68
20090325478
2009-12-31

Mobile jamming attack method in wireless sensor network and method defending the same

#69
20090311963
2009-12-17

Methods of Remotely Identifying, Suppressing, Disabling and Access Filtering Wireless Devices of Interest Using Signal Timing and Intercept Receivers to Effect Power Reduction, Minimization of Detection, and Minimization of Collateral Interfernce.

#70
20090258592
2009-10-15

Radio frequency identification tag and operating method thereof

#71
20090224035
2009-09-10

Device for protecting contactless communication objects against fraud

#72
20090209196
2009-08-20

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

#73
20090170422
2009-07-02

Method of controlling wireless communications

#74
20090156116
2009-06-18

Method and apparatus for heavy-tailed waveform generation used for communication disruption

#75
20090078761
2009-03-26

Financial and similar identification cards read by magnetic swipe card readers and methods relating thereto

#76
20090061759
2009-03-05

Regenerative jammer with multiple jamming algorithms

#77
20090047941
2009-02-19

Method and apparatus for deactivating mobile radio stations from the network

#78
20090041241
2009-02-12

Near field communications system having enhanced security

#79
20080317265
2008-12-25

Anti-eavesdropping device

#80
20080222720
2008-09-11

Financial and similar indentification cards and methods relating thereto

#81
20080125112
2008-05-29

Mobile telephony

#82
20080024294
2008-01-31

Systems, devices, and methods for selectively preventing data transfer from a medical device

#83
20080002651
2008-01-03

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

#84
20070194931
2007-08-23

RFID—sensor system for lateral discrimination

#85
20070153714
2007-07-05

Device, system and method of securing wireless communication

#86
20070152052
2007-07-05

Financial and similar identification cards read by magnetic swipe card readers and methods relating thereto

#87
20070132596
2007-06-14

Sound Privacy Machine and Methods of Use Thereof

#88
20070099559
2007-05-03

Cellular phone jammer that permits cellular communication in an emergency

#89
20070046439
2007-03-01

Radio frequency identification system with device for protecting privacy and method of operation

#90
20070040672
2007-02-22

Security system for mass transit and mass transportation

#91
20060240790
2006-10-26

Wireless transmitter

#92
20060226969
2006-10-12

Method and apparatus for a privacy enabling radio frequency identification (RFID) reader

#93
20060176033
2006-08-10

Scrambling of the current signature of an integrated circuit

#94
20060176032
2006-08-10

Secure supply of an integrated circuit

#95
20060153281
2006-07-13

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

#96
20060153280
2006-07-13

Method and apparatus for surgical high speed follower jamming based on selectable target direction

#97
20060032908
2006-02-16

Financial and similar identification cards and methods relating thereto

#98
20060032906
2006-02-16

Financial and similar identification cards read by magnetic swipe card readers and methods relating thereto

#99
20060002559
2006-01-05

Method for preventing eavesdropping in wireless communication system

#100
20060001568
2006-01-05

Method and apparatus for providing an electronic warfare target simulator

#101
20050074077
2005-04-07

Communication breaking device and method thereof

#102
20050020244
2005-01-27

RF firewall for a wireless network

#103
16533426
2020-12-01

Interfering radio and vehicle key locker

#104
16436197
2023-11-07

Adaptive digital radio frequency memory for coherent response synthesis

#105
14223369
2019-04-16

Combining time-varying non-linear distortion with a communications signal