ClassID:

224688

H04K3/84 - CPC Classification

Classification description:

Jamming of communication; Counter-measures; Jamming or countermeasure characterized by its function related to preventing electromagnetic interference in petrol station, hospital, plane or cinema

Recent Application in this class:
#1
20250159394
2025-05-15

DIGITAL IMAGING SYSTEM AND METHOD

#2
20240267148
2024-08-08

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

#3
20230052574
2023-02-16

APPARATUS AND METHOD OR FILTERING ADVERTISEMENTS IN WIRELESS NETWORKS

#4
20220293078
2022-09-15

Acoustic metamaterial

#5
20210344378
2021-11-04

SYSTEM AND METHOD FOR NEAR FIELD COMMUNICATIONS HAVING LOCAL SECURITY

#6
20210235177
2021-07-29

Wireless sound-emitting device and system for remotely controlling a sound-emitting device

#7
20210175996
2021-06-10

AIRCRAFT TRACKING SENSOR ARRANGEMENT, AND A DEVICE AND METHOD THEREOF

#8
20200312292
2020-10-01

Acoustic metamaterial

#9
20200112342
2020-04-09

SYSTEM AND METHOD FOR NEAR FIELD COMMUNICATIONS HAVING LOCAL SECURITY

#10
20200053447
2020-02-13

Wireless sound-emitting device and system for remotely controlling a sound-emitting device

#11
20200051541
2020-02-13

Masking open space noise using sound and corresponding visual

#12
20190238185
2019-08-01

SYSTEM AND METHOD FOR NEAR FIELD COMMUNICATIONS HAVING LOCAL SECURITY

#13
20180268836
2018-09-20

Speech privacy system and/or associated method

#14
20180268835
2018-09-20

Speech privacy system and/or associated method

#15
20180268834
2018-09-20

Speech privacy system and/or associated method

#16
20180208326
2018-07-26

Drone defense system

#17
20180166062
2018-06-14

Acoustic metamaterial

#18
20180144735
2018-05-24

Masking open space noise using sound and corresponding visual

#19
20180122353
2018-05-03

Sound masking in open-plan spaces using natural sounds

#20
20180091253
2018-03-29

Enodeb with masking functionality and aircraft

#21
20160380719
2016-12-29

Method for masking communication signals, enodeb with masking functionality and aircraft

#22
20160351181
2016-12-01

Masking open space noise using sound and corresponding visual

#23
20160044158
2016-02-11

Hacker-resistant denial of wireless device operation in restricted areas

#24
20150080041
2015-03-19

Communication device for rail vehicle, rail vehicle equipped with said device

#25
20140364053
2014-12-11

Service signal used as part of terrestrial communications masking signal on board aircraft

#26
20130337772
2013-12-19

Cellular device identification and location with emergency number selectivity enforcement (CILENSE)

#27
20130288669
2013-10-31

Airborne onboard base transceiver station for mobile communication

#28
20130016847
2013-01-17

METHOD AND APPARATUS FOR ACTIVE SOUND MASKING

#29
20120322443
2012-12-20

AIRBORNE ONBOARD BASE TRANSCEIVER STATION FOR MOBILE COMMUNICATION

#30
20120057475
2012-03-08

Methods and apparatus to perform jamming based on signal and interference in peer-to-peer networks

#31
20110257469
2011-10-20

Head-mounting device to mask ambient sounds for sleeping

#32
20110165861
2011-07-07

Cellular device identification and location with emergency number selectivity enforcement (CILENSE)

#33
20110100880
2011-05-05

Method and apparatus for producing stationary intense wave fields of arbitrary shape

#34
20110086590
2011-04-14

Method and associated device for preventing UMTS call setup in nearby mobile phones

#35
20090127020
2009-05-21

Acoustically transmissive blanket system

#36
20090081943
2009-03-26

SYSTEM AND METHOD FOR NEAR FIELD COMMUNICATIONS HAVING LOCAL SECURITY

#37
20090047941
2009-02-19

Method and apparatus for deactivating mobile radio stations from the network

#38
20080317265
2008-12-25

Anti-eavesdropping device

#39
20080299965
2008-12-04

Airborne onboard base transceiver station for mobile communication

#40
20080130539
2008-06-05

System for managing voice over internet protocol communications in a network

#41
20080125112
2008-05-29

Mobile telephony

#42
20060270470
2006-11-30

Wireless communication inside shielded envelope

#43
20060109983
2006-05-25

Signal masking and method thereof

#44
20060038677
2006-02-23

System and method for monitoring and enforcing a restricted wireless zone

#45
20050212673
2005-09-29

System and method for selectively reading RFID devices

#46
15198490
2017-08-29

Physical layer security for wireless implantable medical devices