ClassID:

227483

H04M1/68 - CPC Classification

Classification description:

Substation equipment, e.g. for use by subscribers Circuit arrangements for preventing eavesdropping

Sub-classes:
Recent Application in this class:
#1
20250260764
2025-08-14

SYSTEMS AND METHODS FOR DETECTING CALL PROVENANCE FROM CALL AUDIO

#2
20240223697
2024-07-04

Systems and methods for detecting call provenance from call audio

#3
20240223689
2024-07-04

MOBILE TERMINAL FOR PREVENTING SOUND LEAKAGE AND SOUND OUTPUT METHOD FOR MOBILE TERMINAL

#4
20240137439
2024-04-25

SYSTEMS AND METHODS FOR DETECTING CALL PROVENANCE FROM CALL AUDIO

#5
20230171338
2023-06-01

SYSTEMS AND DEVICES FOR PROTECTING PRIVACY OF A USER OF A MOBILE DEVICE

#6
20220263587
2022-08-18

System and method to prevent unauthorized voice detection via fiber links

#7
20210367680
2021-11-25

System and method to prevent unauthorized voice detection via fiber links

#8
20210295861
2021-09-23

Systems and methods for detecting call provenance from call audio

#9
20210144499
2021-05-13

Inter-channel level difference based acoustic tap detection

#10
20200137222
2020-04-30

Systems and methods for detecting call provenance from call audio

#11
20190173990
2019-06-06

Method and apparatus for securing voice over IP telephone device

#12
20180367657
2018-12-20

Telecommunication device, telecommunication system, method for operating a telecommunication device, and computer program

#13
20180091639
2018-03-29

Method and apparatus for securing voice over IP telephone device

#14
20180054732
2018-02-22

Communication method for mobile terminal and mobile terminal

#15
20170353600
2017-12-07

Detection of privacy breach during a communication session

#16
20170207865
2017-07-20

System, method, and apparatus for wireless camera detection

#17
20170126884
2017-05-04

Systems and methods for detecting call provenance from call audio

#18
20170094053
2017-03-30

Systems and methods for detecting a call anomaly using biometric identification

#19
20170005996
2017-01-05

Anti-eavesdropping system for mobile phone communication

#20
20160269544
2016-09-15

Device and method for controlling alarm according to unintended function in mobile terminal

#21
20160044161
2016-02-11

System and method for detecting three-way call circumvention attempts

#22
20150304839
2015-10-22

Method for transmitting and receiving fake communication data and terminal performing the same

#23
20150257001
2015-09-10

Systems and methods for detecting call provenance from call audio

#24
20150206411
2015-07-23

System, method, and apparatus for wireless camera detection

#25
20150099484
2015-04-09

Voice communication apparatus

#26
20150050878
2015-02-19

Wireless relay device and method of processing data using the same

#27
20140310783
2014-10-16

Messaging gateway for directory and anonymous services

#28
20140066020
2014-03-06

Data segmentation profiles

#29
20140018074
2014-01-16

Notifying a wireless communication system about previously registered wireless communication systems

#30
20130028403
2013-01-31

LINE SHARING MULTIPOINT POTS SPLITTER WITH INTELLIGENT TERMINATION

#31
20120157045
2012-06-21

Methods, systems, and apparatus for handling secure-voice-communication sessions

#32
20120122524
2012-05-17

Device and method for controlling alarm according to unintended function in mobile terminal

#33
20110319010
2011-12-29

Systems and methods for identification of mobile phones in a restricted environment

#34
20110106149
2011-05-05

SEPTAL OCCLUDER AND ASSOCIATED METHODS

#35
20100167692
2010-07-01

Methods, systems, and apparatus for handling secure-voice-communication sessions

#36
20090149205
2009-06-11

System And Method For Regulating Data Messaging Between A Wireless Device And A Mobile Communication Device Using Short Message Service

#37
20090103713
2009-04-23

Circuit for preventing unauthorized access to phones

#38
20090061882
2009-03-05

System and method for call privacy

#39
20090030622
2009-01-29

Non-linear junction based electronics detection

#40
20080242265
2008-10-02

System and method for providing dynamic presence information as collected by a mobile device

#41
20080144787
2008-06-19

Method and device for secure phone banking

#42
20080123840
2008-05-29

Method and system for answer-mode identification of a telephony device

#43
20080118042
2008-05-22

Systems and methods for detecting a call anomaly using biometric identification

#44
20080036714
2008-02-14

Display Control Device, Display Apparatus, Method of Controlling Display Device, Display Control Program, and Storage Medium Storing the Program

#45
20070207787
2007-09-06

Wireless communications device and method for use with telephone network edge node providing privacy

#46
20070195825
2007-08-23

Satellite Communication System and Method

#47
20070121828
2007-05-31

3-way call detection system and method

#48
20070055513
2007-03-08

Method, medium, and system masking audio signals using voice formant information

#49
20060236088
2006-10-19

Technique for encrypting communications

#50
20060188088
2006-08-24

Line sharing multipoint pots splitter with intelligent termination

#51
20060154675
2006-07-13

Wireless communications device and method for use with telephone network edge node providing privacy

#52
20060133597
2006-06-22

System for protecting personal information of a customer when receiving on-line services from a service provider

#53
20060115080
2006-06-01

Methods and apparatus for preventing a third party from overhearing a telephone conversation

#54
20050246532
2005-11-03

Secure communication system and method

#55
20050114649
2005-05-26

Methods apparatus and program products for wireless access points

#56
20050111654
2005-05-26

3-Way call detection system

#57
20050065778
2005-03-24

Secure speech