ClassID:

224668

H04K3/25 - CPC Classification

Classification description:

Jamming of communication; Counter-measures; Countermeasures against jamming based on characteristics of target signal or of transmission , e.g. using direct sequence spread spectrum or fast frequency hopping

Sub-classes:
Recent Application in this class:
#1
20260142741
2026-05-21

APPARATUS AND METHOD FOR DETECTING AND RESPONDING TO MOBILE COMMUNICATION RADIO FREQUENCY JAMMING ATTACKS IN OPEN RAN ENVIRONMENT

#2
20260005786
2026-01-01

METHOD, SYSTEM AND STORAGE MEDIUM OF SIGNAL ACQUISITION BASED ON SELECTIVE COHERENT INTEGRATION FOR ANTI-JAM OF PROTECTED GLOBAL POSITIONING SYSTEM USER EQUIPMENT

#3
20250260505
2025-08-14

POSITIONING DETERMINATION AT USER EQUIPMENT UNDER AMPLIFY-AND-FORWARD RELAY JAMMING

#4
20250150195
2025-05-08

Method for Eliminating Jamming by OAM Mode Quadratic Coordination

#5
20240413923
2024-12-12

METHOD FOR PROCESSING A GNSS SIGNAL WITH A VIEW TO ATTENUATING AT LEAST ONE JAMMING SIGNAL

#6
20240396662
2024-11-28

ANTI-JAMMING USING DUAL CHANNEL MULTI-FREQUENCY NULL-STEERING APPROACH

#7
20240396661
2024-11-28

MULTI-TONE JAMMER MITIGATION

#8
20240322936
2024-09-26

Electronic portion of a CRPA antenna of an anti-jamming device for a GNSS receiver and associated anti-jamming device and method for processing signals

#9
20240322935
2024-09-26

JAMMER DETECTION

#10
20230403096
2023-12-14

APPARATUSES AND METHODS FOR FACILITATING A DENIAL OF ACCESS TO ONE OR MORE FREQUENCY BANDS IN A COMMUNICATION NETWORK OR SYSTEM

#11
20230291494
2023-09-14

Radio frequency interference mitigation with adaptive local oscillator

#12
20230101999
2023-03-30

FREQUENCY JAMMING DETECTION AND JAMMER DIRECTION DETECTION

#13
20220337335
2022-10-20

System and method for phase manipulation attack protection and detection in AoA and AoD

#14
20220329345
2022-10-13

ADJUSTABLE NULL STEERING IN A STATIONARY NETWORK

#15
20220317315
2022-10-06

ALL SOURCE POSITION, NAVIGATION, AND TIMING

#16
20220173826
2022-06-02

Channel hopping-based jamming defense system for wireless local area networks

#17
20220149977
2022-05-12

System and method for phase manipulation attack protection and detection in AoA and AoD

#18
20220077878
2022-03-10

Machine-learning based analysis and response to electromagnetic waveforms

#19
20210364644
2021-11-25

Method for detecting spoofing in a global navigation satellite system receiver, corresponding receiver apparatus and computer program product

#20
20210306856
2021-09-30

Detecting network jamming

#21
20200359382
2020-11-12

Systems and methods for frequency hopping waveforms

#22
20200295863
2020-09-17

Symbol detection is shared wireless channel subject to jamming interference

#23
20190363819
2019-11-28

Link 16 transceiver with integral signal nulling system

#24
20190236962
2019-08-01

Secure control and operation of drones

#25
20190200356
2019-06-27

Systems and methods for frequency hopping waveforms

#26
20190120970
2019-04-25

GNSS authentication method

#27
20190116078
2019-04-18

Apparatuses, systems, and methods for communicating using MIMO and spread spectrum coding in backscatter of ambient signals

#28
20190036638
2019-01-31

Determining a frequency for propulsor engine communication sessions

#29
20180241604
2018-08-23

Apparatuses, systems, and methods for communicating using MIMO and spread spectrum coding in backscatter of ambient signals

#30
20180234175
2018-08-16

Photonic implementation of jamming avoidance response

#31
20180191457
2018-07-05

Effective cross-layer satellite communications link interferences mitigation in the presence of various RFI types

#32
20180007548
2018-01-04

Method and apparatus for providing broadcast channel encryption to enhance cellular network security

#33
20170360317
2017-12-21

Wireless vibrometer with antenna array

#34
20170117968
2017-04-27

Photonic implementation of jamming avoidance response

#35
20170039465
2017-02-09

Middleware device, driving method of reader and method for determining misrecognition of tag

#36
20170026076
2017-01-26

Systems and method for adaptive frequency management utilizing multiple frequency sets

#37
20160366109
2016-12-15

Method and apparatus for validating a transaction between a plurality of machines

#38
20160172751
2016-06-16

System and method for reducing the probability of detection of a communication and sensor mast

#39
20160162696
2016-06-09

Camouflaged communication device

#40
20150382188
2015-12-31

Method and apparatus for providing broadcast channel encryption to enhance cellular network security

#41
20150381307
2015-12-31

Provision of a secured replica pseudo random noise signal

#42
20150163670
2015-06-11

Systems/methods of conducting a financial transaction using a smartphone

#43
20150118998
2015-04-30

Systems/methods of preferential communications

#44
20150063570
2015-03-05

Method for ensuring security and privacy in a wireless cognitive network

#45
20150050917
2015-02-19

Method for ensuring security and privacy in a wireless cognitive network

#46
20150010153
2015-01-08

Method and apparatus for attack resistant mesh networks

#47
20140348211
2014-11-27

Systems/methods of adaptively varying a spectral content of communications

#48
20130163761
2013-06-27

Wireless communication method and system for transmission authentication at the physical layer

#49
20130142218
2013-06-06

Methods and apparatuses using filter banks for multi-carrier spread-spectrum signals

#50
20130086664
2013-04-04

System and method for authenticating a request for access to a secured device

#51
20120206097
2012-08-16

Inductively coupled power and data transmission system

#52
20110243192
2011-10-06

Method and apparatus for tracking a frequency-hopped signal

#53
20110138183
2011-06-09

Method for ensuring security and privacy in a wireless cognitive network

#54
20110123028
2011-05-26

Systems and/or methods of increased privacy wireless communications

#55
20110103437
2011-05-05

Private, covert and/or cognitive communications systems and/or methods based upon pseudo-randomly generated communications alphabets

#56
20110087879
2011-04-14

Communication network with secure access for portable users

#57
20110033051
2011-02-10

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

#58
20110031928
2011-02-10

Soldier system wireless power and data transmission

#59
20110002364
2011-01-06

Anti-jam communications having selectively variable peak-to-average power ratio including a chaotic constant amplitude zero autocorrelation waveform

#60
20100118925
2010-05-13

Waveforms comprising a plurality of elements and transmission thereof

#61
20090268783
2009-10-29

Wireless communications systems and/or methods providing low interference, high privacy and/or cognitive flexibility

#62
20090257475
2009-10-15

System and method for secure communication of collected amphibious data

#63
20090103720
2009-04-23

Method and system for secure and anti jamming wireless communication with high spectral efficiency

#64
20080246619
2008-10-09

Explosive device detection system and method

#65
20060264168
2006-11-23

Processor based frequency selective jamming and communications system

#66
20060140251
2006-06-29

Frequency hopping communication system

#67
20050249266
2005-11-10

Multi-subband frequency hopping communication system and method

#68
19332084
2026-04-07

Wireless communication device and method for real-time or near real-time jamming signals mitigation

#69
18374980
2026-05-12

Angle-of-arrival open-loop frequency-hopping communication system

#70
15260052
2017-04-18

Comb limiter combiner with sub-band interference negation

#71
14636292
2017-12-05

Wavelet transformation based anti-jam processing techniques