ClassID:

226081

H04L27/3836 - CPC Classification

Classification description:

Modulated-carrier systems; Carrier systems characterised by combinations of two or more of the types covered by groups , , or; Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems; Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers in which the carrier is recovered using the received modulated signal or the received IF signal, e.g. by detecting a pilot or by frequency multiplication

Recent Application in this class:
#1
20230179468
2023-06-08

DUAL-LAYERED PREDISTORTION SYSTEM FOR WIRELESS COMMUNICATION

#2
20230179467
2023-06-08

Predistortion system with targeted spectrum emission for wireless communication

#3
20230179466
2023-06-08

Dualband predistortion system for wireless communication

#4
20220021514
2022-01-20

Low-complexity synchronization header detection

#5
20210044360
2021-02-11

Probabilistic shaping techniques for high performance coherent optical transceivers

#6
20210006388
2021-01-07

Low-complexity synchronization header detection

#7
20200295842
2020-09-17

Impairment compensation techniques for high performance coherent optical transceivers

#8
20200244372
2020-07-30

Probabilistic shaping techniques for high performance coherent optical transceivers

#9
20200186324
2020-06-11

LOW-COMPLEXITY SYNCHRONIZATION HEADER DETECTION

#10
20190182080
2019-06-13

Target constellation diagram determining method, data sending method, and apparatus

#11
20190158343
2019-05-23

Divided data transmitting and receiving system

#12
20180212805
2018-07-26

Modulation method, demodulation method, and apparatus for multi-user information transmission

#13
20180091353
2018-03-29

Multipoint transmission and reception in a radio communication network

#14
20180049141
2018-02-15

Method and devices for hybrid scanning in wireless access system supporting millimeter waves

#15
20170311344
2017-10-26

Method for transmitting/receiving D2D signal in wireless communication system and apparatus therefor

#16
20170310530
2017-10-26

Divided data transmitting and receiving system

#17
20160248618
2016-08-25

Carrier recovery aided by pilot symbols carrying information

#18
20160094379
2016-03-31

System for the correction of amplitude and phase errors of in-quadrature signals, corresponding receiver and method

#19
20150085960
2015-03-26

Carrier wave reproduction device and carrier wave reproduction method

#20
20140307835
2014-10-16

Carrier frequency and phase recovery in quadrature encoded E-band communications

#21
20130089341
2013-04-11

Minimum variance carrier recovery

#22
20130064148
2013-03-14

Single frequency synthesizer based FDD transceiver

#23
20120106983
2012-05-03

Optimized normalized least mean square phase estimation

#24
20100189197
2010-07-29

Radio receiving apparatus

#25
20100158090
2010-06-24

Carrier recovering apparatus and carrier recovering method

#26
20090285137
2009-11-19

Wireless transmitting apparatus, wireless receiving apparatus, wireless transmission method, wireless reception method, wireless communication system, and wireless communication method

#27
20090135970
2009-05-28

DIRECT CONVERSION RECEIVER

#28
20090097594
2009-04-16

Mirror sub-carrier demodulation circuit, receiving device with the same, and mirror sub-carrier demodulating method

#29
20080233879
2008-09-25

Radio system, radio transmitter, and radio receiver

#30
20080063102
2008-03-13

Adaptive RFID receiver for QAM signals

#31
20070268978
2007-11-22

Carrier offset estimator

#32
20050068096
2005-03-31

Apparatus for continuous phase quadrature amplitude modulation and demodulation

#33
18211094
2024-09-03

Probabilistic shaping techniques for high performance coherent optical transceivers

#34
17534766
2023-06-20

Probabilistic shaping techniques for high performance coherent optical transceivers

#35
16256971
2020-03-31

Probabilistic shaping techniques for high performance coherent optical transceivers