ClassID:

223529

H04B3/231 - CPC Classification

Classification description:

Line transmission systems; Details; Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers Echo cancellers using readout of a memory to provide the echo replica

Recent Application in this class:
#1
20250211283
2025-06-26

Link Training for a Full-Duplex Ethernet Link

#2
20230050128
2023-02-16

Link training for a full-duplex ethernet link

#3
20220255583
2022-08-11

Echo canceller system and echo cancelling method

#4
20220209818
2022-06-30

Echo cancellation device and echo cancellation method thereof applied in communication device

#5
20210266035
2021-08-26

Operation method and receiver device

#6
20200091963
2020-03-19

Acoustic echo cancellation with room change detection

#7
20190215022
2019-07-11

Transmission device and system

#8
20190115878
2019-04-18

Apparatus and method for transmitting signal in wireless communication system

#9
20190028145
2019-01-24

Cable modem echo cancellation training in full duplex coaxial networks

#10
20180373665
2018-12-27

Memory channel driver with echo cancellation

#11
20160233920
2016-08-11

Channel detection method and system thereof

#12
20150249885
2015-09-03

Apparatus suppressing acoustic echo signals from a near-end input signal by estimated-echo signals and a method therefor

#13
20150131807
2015-05-14

Systems and methods for split echo cancellation

#14
20140355751
2014-12-04

Systems and methods for echo reduction

#15
20140269247
2014-09-18

Method and apparatus to compensate for nonlinear echo in an output of a current source

#16
20130243183
2013-09-19

Multi-receiving terminal echo cancellation method and system

#17
20090238102
2009-09-24

Generating an estimated non-linear echo signal

#18
20080267327
2008-10-30

Nonlinear echo compensator for class B transmitter line driver

#19
20080247559
2008-10-09

Electricity echo cancellation device and method

#20
20070217599
2007-09-20

Cache-based echo canceller

#21
20070217414
2007-09-20

System and method for multicasting over power lines

#22
20070116255
2007-05-24

Echo canceller having a series arrangement of adaptive filters with individual update control strategy

#23
20060217969
2006-09-28

Method and apparatus for echo suppression

#24
20050122893
2005-06-09

Techniques to reduce echo

#25
18309022
2024-07-02

Segmented echo cancellation filter for use in full-duplex communication systems

#26
17449041
2023-06-20

Segmented echo cancellation filter for use in full-duplex communication systems

#27
16573679
2022-02-22

Autonomously motile device with residual echo suppression

#28
15704285
2019-03-26

Acoustic echo cancellation using visual cues

#29
13535232
2017-09-19

Acoustic echo cancellation using visual cues