ClassID:

224687

H04K3/827 - CPC Classification

Classification description:

Jamming of communication; Counter-measures; Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection using characteristics of target signal or of transmission , e.g. using direct sequence spread spectrum or fast frequency hopping

Recent Application in this class:
#1
20240171301
2024-05-23

MACHINE LEARNING DEVICE AND JAMMING SIGNAL GENERATION APPARATUS

#2
20230327797
2023-10-12

DISTRIBUTED CARRIER WITH JOINT EQUALIZATION

#3
20230309039
2023-09-28

METHOD FOR PERFORMING SYNCHRONIZATION IN DISTRIBUTED CARRIER COMMUNICATIONS

#4
20220308236
2022-09-29

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

#5
20220173826
2022-06-02

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

#6
20220029732
2022-01-27

Optronic system for a countermeasure unit and method to optically communicate

#7
20210344378
2021-11-04

SYSTEM AND METHOD FOR NEAR FIELD COMMUNICATIONS HAVING LOCAL SECURITY

#8
20200266916
2020-08-20

Systems and methods for disrupting unauthorized communications in low frequency radio communication devices

#9
20200112342
2020-04-09

SYSTEM AND METHOD FOR NEAR FIELD COMMUNICATIONS HAVING LOCAL SECURITY

#10
20190363821
2019-11-28

SYSTEM AND METHOD FOR COMMUNICATING WITH A UAV

#11
20190360783
2019-11-28

System and method for intercepting unmanned aerial vehicles

#12
20190268087
2019-08-29

Energy-efficient reactive jamming of frequency-hopping spread spectrum (FHSS) signals using software-defined radios

#13
20190238185
2019-08-01

SYSTEM AND METHOD FOR NEAR FIELD COMMUNICATIONS HAVING LOCAL SECURITY

#14
20190036638
2019-01-31

Determining a frequency for propulsor engine communication sessions

#15
20180234175
2018-08-16

Photonic implementation of jamming avoidance response

#16
20180175966
2018-06-21

Electronic device and method for operating the same

#17
20180068647
2018-03-08

Auditory information security system

#18
20180007548
2018-01-04

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

#19
20170237468
2017-08-17

SYSTEM AND METHOD FOR NEAR FIELD COMMUNICATIONS HAVING LOCAL SECURITY

#20
20170160379
2017-06-08

Encapsulated electronic warfare architecture

#21
20170117968
2017-04-27

Photonic implementation of jamming avoidance response

#22
20160366109
2016-12-15

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

#23
20160172751
2016-06-16

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

#24
20150382188
2015-12-31

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

#25
20150244495
2015-08-27

Apparatus and method for transmitting jamming signal

#26
20150163670
2015-06-11

Systems/methods of conducting a financial transaction using a smartphone

#27
20150118998
2015-04-30

Systems/methods of preferential communications

#28
20140348211
2014-11-27

Systems/methods of adaptively varying a spectral content of communications

#29
20130178156
2013-07-11

Near field communication (NFC) security apparatus and method

#30
20130142218
2013-06-06

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

#31
20120214404
2012-08-23

Multi-mode phy-level wireless security

#32
20120214403
2012-08-23

Time-varying PHY-level wireless security

#33
20120214402
2012-08-23

Phy-level wireless security

#34
20120206097
2012-08-16

Inductively coupled power and data transmission system

#35
20120174187
2012-07-05

SYSTEMS AND METHODS FOR PROVIDING PHYSICAL LAYER SECURITY

#36
20110123028
2011-05-26

Systems and/or methods of increased privacy wireless communications

#37
20110103437
2011-05-05

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

#38
20110087879
2011-04-14

Communication network with secure access for portable users

#39
20110033051
2011-02-10

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

#40
20110031928
2011-02-10

Soldier system wireless power and data transmission

#41
20100118925
2010-05-13

Waveforms comprising a plurality of elements and transmission thereof

#42
20090268783
2009-10-29

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

#43
20090257475
2009-10-15

System and method for secure communication of collected amphibious data

#44
20090081943
2009-03-26

SYSTEM AND METHOD FOR NEAR FIELD COMMUNICATIONS HAVING LOCAL SECURITY

#45
20060264168
2006-11-23

Processor based frequency selective jamming and communications system

#46
20050232207
2005-10-20

Wideband intercom and secure packet radio (WISPR)

#47
16436197
2023-11-07

Adaptive digital radio frequency memory for coherent response synthesis